EN319 CRUISE REPORT

21 February - 4 March, 1999

 

Acknowledgments: We wish to thank the crew of the R/V Endeavor for their professionalism and friendly support. Their cooperation and assistance made the success of this cruise possible.

This cruise was sponsored by the National Science Foundation and prepared by Ted Durbin, Jeff Runge, Melissa Wagner, and Barbara Niehoff.


TABLE OF CONTENTS

Introduction............................................................................3

Cruise Narrative.....................................................................4

Hydrography..........................................................................5

Chlorophyll and Nutrients....................................................13

Zooplankton Abundance.......................................................15

Egg Production Studies.........................................................25

List of Scientific Personnal....................................................26

Event Log...............................................................................27

 

INTRODUCTION

The objective of the cruise was to determine egg production and growth rates, and physiological condition and mortality rates of the dominant copepod species on Georges Bank including the target species Calanus finmarchicus and Pseudocalanus.  The general plan was to deploy ARGOS-tracked drogues on the NE Peak of Georges Bank and follow these for 8-10 days.  Each day we planned to carry out a CTD and bottle cast (for chlorophyll a determinations) next to the drifter and sample the zooplankton with a plankton pump (5 replicate profiles) and a bongo net (3 profiles).  At  the same time we planned to carry out molting rate and egg laying rates on the Calanus finmarchicus.  From these measurements we planned to determine stage specific mortality rates of Calanus using the population surface method and the vertical life table approach.  At the beginning of the drifter deployment and every other day subsequently we planned to carry out a 1 m2 MOCNESS tow to collect potential invertebrate zooplankton predators.  Prior to deployment of the drifters we planned to carry out several CTD and bongo transects in an east-west direction between the 60 and 200m depth contours on the NE Peak.  Information from these transects was intended to enable us to determine a suitable location for deployment of the drifters.

Following the drifter tracking study we planned to carry out a study of the abundance, stage and depth-distribution of Calanus, as well as determining egg laying rates and physiological condition, along transects in the Gulf of Maine.  The objective was to determine the reproductive status of the overwintering Calanus population in the Gulf of Maine prior to the occurrence of the spring phytoplankton bloom.  The first transect was planned to begin on the NE Peak and extend north to Maine Coastal waters adjacent to Mt. Desert Island.  The second was to extend west across the Gulf to Cape Cod Bay.  At each station we planned to deploy the CTD and collect water for chlorophyll a, carry out MOCNESS and pump deployments, and collect live animals for experiments.  Stations were to be approximately 30 miles apart.

Because of extremely bad weather throughout the cruise with a succession of storms passing through we were unable to achieve most of these objectives. The cruise was initially delayed several days because of weather.  When we reached the NE Peak of Georges Bank to begin the initial transects conditions were too rough to work.  A major storm was forecast so we left to shelter in Portland, Maine. At this stage there was insufficient time to complete the planned drifter study. On returning from Portland we carried out a transect across the Gulf of Maine from Maine coastal waters at the mouth of Penobscot bay, across Jordan and Georges Basins, and onto Georges Bank, sampling zooplankton with a pump and Mocness, carrying out egg laying experiments, collecting animals for RNA/DNA measurements, and measuring growth and molting rates. This transect was also interrupted by weather. At the end of the transect we planned to carry out several diel studies of Calanus egg laying on Georges Bank. Bad weather prevented even these limited objectives so we returned to Narragansett.

Although most of our initial objectives were not met, we considered that the N-S Gulf of Maine transect provided useful and new information for this region during the winter.

 

CRUISE NARRATIVE

We left GSO on Sunday, 21 February at 09:15 after a two delay due to bad weather.  We proceeded out through Buzzards Bay, Cape Cod Canal and to our station on the NE Peak of Georges Bank, arriving at the station at 08:00 am on the 22nd. Shortly before we arrived winds picked up to over 30 kts, gusting up to 40, and after readying the CTD for deployment we decided that conditions were too severe to start work.  We began jogging slowly.  Winds were predicted to remain between 30-40 for the rest of the day and we didn’t expect to begin work until early Tuesday.

On Tuesday morning winds were still blowing around 30 kt and air temperatures were -7.0 C.  However, winds were slowly decreasing so we turned around (during the storm we had jogged about 25 miles N of the station) and steamed back to the station (St 1), arriving there around 13:30.  We carried out a CTD cast collecting water for chlorophyll.  We then carried out two live tows with a 156 µm, 1 m diameter net towed between the surface and near the bottom (47 m).  Conditions during the casts were marginal and it would not have been possible to carry out either a 1 m2 MOCNESS tow or a plankton pump cast.  At the end of the station the Captain came down with news of more bad weather predicted for the Gulf of Maine and Georges Bank (storm level winds) beginning Wednesday night and wanted to break off work and head into shelter.  Portland, Maine was decided upon since we felt it would provide an opportunity to carry out a transect from N to S in the Gulf of Maine as we returned to Georges Bank.

The live tows, meanwhile, were immediately sorted for Calanus and Pseudocalanus adult females and Calanus older stage copepodites.  Groups of Calanus were preserved for RNA/DNA measurements.  Additional females were sorted for egg laying measurements (Runge/Joly) and to lay eggs for the production of nauplii which would be used when we return to the bank in feeding experiments (Sandrin).  Calanus was quite sparse at the station.  Other copepods present included Metridia, Pseudocalanus, Oithona and Centropages.

We arrived in Portland on 24 February and departed at 06:00 on the 27th and headed out to the first station of our N-S Gulf of Maine transect off Manincus Island at the mouth of Penobscot Bay. The general approach at each station was to carry out a CTD and collect samples for nutrients and chlorophyll a, do a 1 m2 MOCNESS and a pump cast, and then collect live animals for sorting for egg laying experiments with Calanus and Pseudocalanus.  At each station a 75 µm mesh net tow was preserved for egg ratio estimates of egg production by Pseudocalanus.  Subsamples were taken from surface and deep MOC nets for RNA/DNA and C & N measurement on older stager copepodites and adult females of Calanus.  At every other station Calanus nauplii were sorted for RNA/DNA.

 The weather was great for two days and we completed two stations (St 2 and 3) the first day and then broke of for the night so that we could collect live animals during daylight at St 4.  At St 2 we were in the lower salinity Maine Coastal Current.  Calanus was present, both adults and nauplii, as well as Metridia and two spp of Pseudocalanus.  At St 3 there were fewer Pseudocalanus and Calanus, but large numbers of Metridia.  St 4 was started first thing in the morning and we completed 5 and 6 during the day.  There was much large Rhizosolenia at these stations and appeared to be fewer Calanus nauplii.  By evening the wind was picking up and since it was predicted to blow 30-40 kts overnight and the next morning we stowed everything on deck away.  The next morning (March 1st) was warm  with the wind between 20 and 30 but the seas were large and confused.  It rained off an on.  By midday the wind began to drop but the seas remained large preventing any work being done that day.  By 2000 hrs we decided to proceed to the NE Peak of Georges Bank to begin the 36 hr station the following morning.  The swell was still large by morning but we took net tows at St 7 to see if the Calanus populations were suitable for the study of diel periodicity in egg laying and diel changes in egg and naupliar abundance in the water column.  Unfortunately Calanus abundance was very low and it was not a good location for the study.  We then completed regular sampling at  the station and then headed north back to the Gulf of Maine to complete the last station on the GOM transect. This was completed at night in some rather wild conditions with the wind blowing around 30 kts and large swells.  Everything was completed, however, with no mishaps. 

A large storm was predicted for Thursday with 40-45 kt winds on Georges bank.  This would preclude us carrying out any time series study in the GOM or on GB before we had to leave on Friday to come in.  We decided to head into sheltered waters in Massachusetts Bay to see if we could find sufficient animals to carry out the 36 hr study in sheltered waters while the storm was blowing.  We stopped in the western Wilkinson Basin and collected Calanus for experiments and proceeded to a location just inside Stellwagen Bank in Massachusetts Bay.  Unfortunately a net tow revealed very few Calanus and incredibly large numbers of phytoplankton which clogged even a 333 µm net which precluded us from carrying out the 36 hr study at this location.  The weather forecast at this point was predicting high wind and 22 ft seas for the following day in the S Gulf of Maine Georges Bank area.  At this point we decided to return to Narragansett since we would not have been able to accomplish anything significant on Friday morning (if we were able to work at all), before having to break off to return to Narragansett on Sat.

Individual reports follow.

HYDROGRAPHY

CTD profiles for St 2-8 are shown in Figures 2-9. Adjacent to the Maine coast at St 2  (Fig. 2) water was mixed to the bottom (120m) with temperature about 3.7 and salinity 32.5. Chlorophyll fluorescence was low. Across the Gulf at Sts 3-6 the surface mixed layer extended down to about 60m and there was high chlorophyll fluorescence within this layer. Surface temperature was between 3.5 and 4.5 and salinity between 32.4 and 32.6. At St 8 adjacent to Georges Bank the mixed layer extended down to 100m, the temperature warmer than at other stations in the GOM (5.2 C), and chlorophyll fluorescence low (Fig 8). On Georges Bank (St 7) there were suggestions of a slightly colder fresher layer at the surface and then a well-mixed water column beneath this (Fig 9). Water temperature and salinity was higher than in the GOM (6 C and 33 respectively).

                                    Figure 2. Station 2 CTD profiles

 

                                    Figure 3. Station 3 CTD profiles

 

                                    Figure 4. Station 4 CTD profiles

 

                                    Figure 5. Station 5 CTD profiles

 

                                    Figure 6. Station 6 CTD profiles

 

                                    Figure 8. Station 8 CTD profiles

 

                                    Figure 7. Station 7 CTD profiles

 

CHLOROPHYLL and NUTRIENTS

At each station size-fractionated chlorophyll a (<5µm and Total) and nutrients (NH4, NO3,  NO2, PO4) were measured at 10 m intervals down to 60 m and at the bottom. Values are shown in Table 02. At St 2 in Maine Coastal Water chlorophyll a was <1 µg l-1 with most being in the <5 µm fraction suggesting that the spring bloom had not yet begun. Nitrate and phosphate were high (>10 µM and > 1.0 µm) and the same throughout the 112 m water column. At St 3-6 across the Jordan and into the northern edge of Georges Basin total chlorophyll a was between 2 and 7 µg L-1. Most of the phytoplankton was in the larger size-fraction. Nitrate and phosphate were lower than in Maine Coastal Water and decreased from towards the south (St 6) where nitrate was around 6 µM and phosphate 0.7 µM. These higher chlorophyll values coupled with lower nutrients, indicated that the spring bloom had already begun. This is very early for the central Gulf of Maine where typically high chlorophyll values are not seen until April and May (O’Reilly and Zetlin 1999). Perhaps it reflected the calmer weather experienced up until the time of the cruise.

Table 1. Chlorophyll a and nutrients from EN319.

 

 

 

 

 

 

 

Station

Depth, m

<5 µm Chl a

>5 µm Chl a

Total Chl a

DIP

NO3

 

 

ug L-1

ug L-1

ug L-1

uM

uM

1

0

0.58

1.17

1.75

 

 

1

5

0.50

1.01

1.51

 

 

1

10

0.67

0.92

1.59

 

 

1

20

0.53

1.26

1.79

 

 

1

30

0.54

1.13

1.67

 

 

1

40

0.63

1.12

1.75

 

 

1

44

0.49

0.94

1.43

 

 

 

 

 

 

 

 

 

2

0

0.40

0.20

0.60

1.10

11.04

2

5

0.40

0.40

0.80

1.07

10.82

2

10

0.40

0.10

0.50

1.07

10.61

2

20

0.38

0.29

0.67

1.08

10.72

2

30

0.40

0.14

0.54

1.13

10.73

2

40

0.30

0.06

0.37

1.08

10.93

2

60

0.27

0.33

0.60

 

 

2

112

 

 

 

1.12

10.93

 

 

 

 

 

 

 

3

0

0.75

2.06

2.81

0.99

8.66

3

5

0.80

2.16

2.96

0.96

8.70

3

10

0.95

1.86

2.81

0.94

8.45

3

20

0.80

2.11

2.91

0.96

8.64

3

30

0.90

1.61

2.51

0.95

8.77

3

40

0.85

1.76

2.61

0.95

8.61

3

60

0.05

0.15

0.20

0.94

8.58

3

168

 

 

 

1.35

13.86

 

 

 

 

 

 

 

4

0

0.66

1.97

2.63

0.93

8.19

4

5

0.73

1.74

2.47

0.90

8.20

4

10

0.73

1.55

2.28

0.90

8.19

4

20

0.70

1.82

2.51

0.90

8.23

4

30

0.66

1.58

2.24

1.00

8.46

4

40

0.31

0.73

1.04

1.24

8.86

4

50

0.02

0.01

0.04

1.11

9.69

4

239

 

 

 

1.55

18.99

 

 

 

 

 

 

 

5

0

0.66

2.32

2.98

0.83

7.06

5

10

0.58

2.43

3.01

0.84

7.01

5

20

0.77

2.09

2.86

0.81

7.12

5

30

0.70

2.43

3.13

0.84

7.27

5

40

0.71

4.18

4.89

0.82

7.05

5

60

0.70

2.40

3.09

0.84

7.32

5

157

 

 

 

1.39

16.83

 

 

 

 

 

 

 

6

0

0.62

2.28

2.90

0.75

6.25

6

10

0.77

2.47

3.25

0.72

6.09

6

20

0.70

2.16

2.86

0.74

6.22

6

30

0.62

6.34

6.95

0.73

6.27

6

40

0.77

2.05

2.82

0.72

6.27

6

60

0.85

2.32

3.17

0.79

7.18

6

199

 

 

 

1.39

19.81

 

 

 

 

 

 

 

8

0

0.62

1.35

1.97

0.90

8.96

8

10

0.73

0.89

1.62

0.90

8.78

8

20

0.77

1.08

1.85

0.92

8.70

8

30

0.77

1.24

2.01

0.90

8.99

8

40

0.93

1.24

2.16

0.91

8.98

8

60

0.66

1.12

1.78

0.93

8.93

8

226

 

 

 

1.47

18.40

 

 

 

 

 

 

 

7

0

0.58

1.28

1.85

0.80

10.05

7

10

0.35

1.12

1.47

0.80

7.66

7

20

0.35

1.12

1.47

0.81

7.93

7

30

0.46

1.39

1.85

0.81

7.93

7

40

0.39

1.51

1.89

0.82

7.95

7

66

0.62

1.08

1.70

0.76

8.03


ZOOPLANKTON ABUNDANCE

 

Below we present zooplankton pump counts.  At this stage the MOCNESS samples have not been enumerated.

 

 

Plankton Pump Counts. Zooplankton pump samples were collected and counted using standard GLOBEC Broadscale Survey Procedures.  Samples were normally collected from 100-70m, 70-40m, 40-15m and 15-0m. Table 2 shows the abundance of Calanus finmarchicus stages for the different depths, while Table 3 shows the total abundance of Calanus over the whole water column at each station. At all stations there was a population of young nauplii and copepodites. Abundance of nauplii was lowest at St 8, adjacent to Georges Bank (8,700 m-2); elsewhere across the Gulf numbers were between 23,000 (St 2) and 55,000 m-2 (St 5). On Georges Bank (St 7) abundance of Calanus nauplii was higher (76,000 m-2), but there were relatively fewer older stages present compared with St 2-6 in the Gulf of Maine.

 

Other abundant copepod nauplii included Oithona, Calasocalanus/Paracalanus, Metridia and Pseudocalanus (Table 5). Oithona was particularly abundant with total numbers >1,000,000 m-2 at all stations but St 2 and 4. Microsetella was quite abundant but was present mostly as copepoidites at depth.

 


Table 2. Abundance of Calanus finmarchicus nauplii. copepodites and adults within each depth range from plankton pump samples. Numbers are the number per square meter for each pump depth range.

 

 

ST

TOW

NET

DEPTH

N1

N2

N3

N4

N5

N6

C1

C2

C3

C4

C5

FEM

MAL

2

1

4

15-0

0

398

1820

1820

3355

1535

512

114

284

114

171

455

0

2

1

3

40-15

0

702

3367

2666

3227

1122

281

281

0

0

0

140

0

2

1

2

70-40

0

775

339

0

97

97

145

48

0

48

0

0

0

2

1

1

100-70

121

483

241

0

121

1328

121

0

0

0

0

241

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

2

4

15-0

0

0

3808

2240

1344

1792

0

448

672

448

0

0

0

3

2

3

40-15

0

606

4040

2424

2222

808

202

404

808

202

0

202

202

3

2

2

70-40

0

0

4144

0

2486

4972

0

829

829

829

0

0

0

3

2

1

100-70

0

253

0

253

505

253

0

0

0

0

0

0

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

3

3

15-0

66

1052

3089

1577

2300

1709

657

460

460

131

0

66

0

4

3

2

70-15

0

2987

7767

1195

2390

2390

2987

1195

4182

0

0

597

0

4

3

1

100-70

0

0

342

0

0

0

0

0

0

85

0

0

85

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

4

4

15-0

239

1196

8371

3348

3348

1674

1435

718

1435

0

0

0

0

5

4

3

40-15

1853

1853

6949

3706

3706

4633

3706

463

1853

463

0

463

0

5

4

2

70-40

1099

4395

4212

1465

549

732

2014

549

366

0

0

0

549

5

4

1

100-70

0

119

119

0

0

119

0

0

0

119

0

119

119

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

5

4

15-0

647

3019

6686

2372

5608

2804

2157

863

3235

2588

216

216

0

6

5

3

40-15

544

6527

5439

2719

0

2176

3807

544

1632

0

0

0

0

6

5

2

70-40

342

2052

2394

0

0

0

1710

342

0

0

0

0

0

6

5

1

100-70

0

128

0

64

0

0

0

0

0

64

64

0

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

6

3

15-0

247

2721

16822

4948

1484

1237

990

247

742

247

0

0

247

7

6

2

40-15

0

7357

16350

2997

272

1635

817

545

0

545

0

0

272

7

6

1

70-40

895

8053

6860

1193

1790

1193

1491

895

597

0

0

0

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

7

4

15-0

0

204

409

818

204

613

818

0

409

613

0

0

0

8

7

3

40-15

0

0

1738

579

290

290

290

434

0

145

0

145

0

8

7

2

70-40

0

933

466

466

933

0

0

466

466

466

0

0

466

8

7

1

90-70

0

501

250

0

0

0

0

0

0

0

0

0

0

 


Table 3. Total water column abundance of Calanus finmarchicus nauplii. copepodites and adults from plankton pump samples. Samples were collected between 0-100m or 0 and the bottom, if it was less than 100m.

 

ST

TOW

N1

N2

N3

N4

N5

N6

C1

C2

C3

C4

C5

C6F

C6M

Tot Naup

Tot Copeps

Tot Adults

M2Tot Cop

2

1

121

2,357

5,767

4,486

6,800

4,083

1,058

443

284

162

171

837

0

23,613

2,118

837

26,568

3

2

0

859

11,992

4,917

6,558

7,825

202

1,681

2,309

1,479

0

202

202

32,151

5,670

404

38,225

4

3

66

4,039

11,198

2,772

4,690

4,099

3,645

1,655

4,642

217

0

663

85

26,864

10,159

749

37,772

5

4

3,191

7,563

19,651

8,519

7,604

7,158

7,155

1,730

3,654

582

0

582

668

53,686

13,122

1,251

68,059

6

5

1,533

11,726

14,519

5,156

5,608

4,979

7,674

1,749

4,867

2,652

280

216

0

43,522

17,221

216

60,959

7

6

1,142

18,131

40,032

9,138

3,546

4,065

3,298

1,687

1,339

792

0

0

520

76,055

7,116

520

83,691

8

7

0

1,638

2,864

1,864

1,427

903

1,107

901

875

1,225

0

145

466

8,695

4,108

611

13,415

 

 

 


Table 4. Total water column abundance of zooplankton taxa from plankton pump samples. Samples were collected between 0-100m or 0 and the bottom, if it was less than 100m.

ST       TOW  N      DEPTH     TAXON                                         NAUPLI     COPS     FEM     MALES  OTHER TOTAL TOTA

ST

TOW

N

DEPTH

 

TAXON

NAUPLII

COPS

FEM

MALES

OTHER

TOTAL

2

1

4

15-0

 

Calanus finmarchicus

8928

1194

455

0

 

10577

2

1

3

40-15

 

Calanus finmarchicus

11084

561

140

0

 

11786

2

1

2

70-40

 

Calanus finmarchicus

1307

242

0

0

 

1549

2

1

1

100-70

 

Calanus finmarchicus

2294

121

241

0

 

2656

2

1

3

40-15

 

Centropages spp.

1403

140

 

 

 

1543

2

1

2

70-40

 

Centropages spp.

301

1653

 

 

 

1954

2

1

1

100-70

 

Centropages spp.

362

1328

 

 

 

1690

2

1

1

100-70

 

Cladocera

 

 

 

 

121

121

2

1

4

15-0

 

Clauso./Para complex

682

57

 

 

 

739

2

1

3

40-15

 

Clauso./Para complex

2806

140

 

 

 

2946

2

1

2

70-40

 

Clauso./Para complex

2555

150

 

 

 

2706

2

1

1

100-70

 

Clauso./Para complex

3622

0

 

 

 

3622

2

1

1

100-70

 

Euchaeta spp.

 

121

0

0

 

121

2

1

1

100-70

 

Euphausids

 

 

 

 

483

483

2

1

4

15-0

 

Gastr larv & pteros

 

 

 

10805

10805

2

1

3

40-15

 

Gastr larv & pteros

 

 

 

35216

35216

2

1

2

70-40

 

Gastr larv & pteros

 

 

 

6013

6013

2

1

3

40-15

 

Metridia lucens

 

 

140

0

 

140

2

1

1

100-70

 

Metridia lucens

 

 

1087

845

 

1932

2

1

4

15-0

 

Metridia spp.

2104

114

 

 

 

2218

2

1

3

40-15

 

Metridia spp.

6173

140

 

 

 

6314

2

1

2

70-40

 

Metridia spp.

7215

1503

 

 

 

8718

2

1

1

100-70

 

Metridia spp.

3501

2173

 

 

 

5674

2

1

4

15-0

 

Microcalanus spp.

 

57

57

0

 

114

2

1

2

70-40

 

Microcalanus spp.

 

752

150

0

 

902

2

1

1

100-70

 

Microcalanus spp.

 

966

1087

121

 

2173

2

1

4

15-0

 

Microsetella norvegica

0

341

 

 

 

341

2

1

3

40-15

 

Microsetella norvegica

281

8418

 

 

 

8699

2

1

2

70-40

 

Microsetella norvegica

0

23900

 

 

 

23900

2

1

1

100-70

 

Microsetella norvegica

0

59397

 

 

 

59397

2

1

4

15-0

 

Oithona spp.

33154

18084

3412

0

 

54650

2

1

3

40-15

 

Oithona spp.

70854

38303

6314

0

 

115470

2

1

2

70-40

 

Oithona spp.

36377

22397

3157

0

 

61931

2

1

1

100-70

 

Oithona spp.

32716

16901

1087

0

 

50704

2

1

4

15-0

 

Oncaea spp.

 

1024

 

 

 

1024

2

1

3

40-15

 

Oncaea spp.

 

1824

 

 

 

1824

2

1

2

70-40

 

Oncaea spp.

 

3006

 

 

 

3006

2

1

1

100-70

 

Oncaea spp.

 

3742

 

 

 

3742

2

1

3

40-15

 

Paracalanus spp.

 

 

140

0

 

140

2

1

4

15-0

 

Pseudocalanus spp.

4208

1194

114

0

 

5516

2

1

3

40-15

 

Pseudocalanus spp.

9400

1964

281

0

 

11645

2

1

2

70-40

 

Pseudocalanus spp.

3486

5617

629

872

 

10604

2

1

1

100-70

 

Pseudocalanus spp.

6881

6398

2535

1569

 

17384

2

1

4

15-0

 

Temora longicornis

512

284

0

0

 

796

2

1

2

70-40

 

Temora longicornis

150

0

0

0

 

150

2

1

1

100-70

 

Temora longicornis

121

0

0

0

 

121


 

ST

TOW

N

DEPTH

 

TAXON

NAUPLII

COPS

FEM

MALES

OTHER

TOTAL

 

3

2

4

15-0

 

Calanus finmarchicus

9185

1568

0

0

 

10753

3

2

3

40-15

 

Calanus finmarchicus

10101

1616

202

202

 

12121

3

2

2

70-40

 

Calanus finmarchicus

11602

2486

0

0

 

14088

3

2

1

100-70

 

Calanus finmarchicus

1263

0

0

0

 

1263

3

2

3

40-15

 

Centropages hamatus

 

 

404

0

 

404

3

2

2

70-40

 

Centropages hamatus

 

 

1657

0

 

1657

3

2

4

15-0

 

Centropages spp.

2016

1792

 

 

 

3808

3

2

3

40-15

 

Centropages spp.

808

1616

 

 

 

2424

3

2

2

70-40

 

Centropages spp.

4144

6630

 

 

 

10773

3

2

1

100-70

 

Centropages spp.

1517

506

 

 

 

2022

3

2

4

15-0

 

Clauso./Para complex

448

0

 

 

 

448

3

2

3

40-15

 

Clauso./Para complex

606

606

 

 

 

1212

3

2

2

70-40

 

Clauso./Para complex

1657

829

 

 

 

2486

3

2

1

100-70

 

Clauso./Para complex

3539

0

 

 

 

3539

3

2

1

100-70

 

Eucalanus spp.

 

506

0

0

 

506

3

2

4

15-0

 

Gastr larv & pteros

 

 

 

42339

42339

3

2

3

40-15

 

Gastr larv & pteros

 

 

 

60607

60607

3

2

2

70-40

 

Gastr larv & pteros

 

 

 

165741

165741

3

2

1

100-70

 

Gastr larv & pteros

 

 

 

75840

75840

3

2

4

15-0

 

Metridia lucens

 

 

2016

0

 

2016

3

2

3

40-15

 

Metridia lucens

 

 

6869

0

 

6869

3

2

2

70-40

 

Metridia lucens

 

 

21546

0

 

21546

3

2

1

100-70

 

Metridia lucens

 

 

2022

506

 

2528

3

2

4

15-0

 

Metridia spp.

14561

896

 

 

 

15457

3

2

3

40-15

 

Metridia spp.

15758

2020

 

 

 

17778

3

2

2

70-40

 

Metridia spp.

38120

7458

 

 

 

45579

3

2

1

100-70

 

Metridia spp.

11629

3539

 

 

 

15168

3

2

1

100-70

 

Microcalanus spp.

 

0

1011

0

 

1011

3

2

4

15-0

 

Microsetella norvegica

224

29794

 

 

 

30018

3

2

3

40-15

 

Microsetella norvegica

0

50304

 

 

 

50304

3

2

2

70-40

 

Microsetella norvegica

2486

161598

 

 

 

164084

3

2

1

100-70

 

Microsetella norvegica

4045

47527

 

 

 

51571

3

2

4

15-0

 

Oithona spp.

131048

66308

11201

672

 

209229

3

2

3

40-15

 

Oithona spp.

175559

95153

21212

0

 

291924

3

2

2

70-40

 

Oithona spp.

525399

237010

70440

0

 

832849

3

2

1

100-70

 

Oithona spp.

211341

108704

33875

0

 

353921

3

2

3

40-15

 

Oncaea spp.

 

404

 

 

 

404

3

2

2

70-40

 

Oncaea spp.

 

1657

 

 

 

1657

3

2

1

100-70

 

Oncaea spp.

 

2022

 

 

 

2022

3

2

4

15-0

 

Paracalanus spp.

 

 

224

0

 

224

3

2

4

15-0

 

Pseudocalanus spp.

13217

4256

1120

672

 

19265

3

2

3

40-15

 

Pseudocalanus spp.

12323

3838

606

808

 

17576

3

2

2

70-40

 

Pseudocalanus spp.

43921

4144

1657

1657

 

51380

3

2

1

100-70

 

Pseudocalanus spp.

11874

1263

0

253

 

13389

3

2

4

15-0

 

Temora longicornis

224

0

0

0

 

224

3

2

3

40-15

 

Temora longicornis

404

0

0

0

 

404

3

2

2

70-40

 

Temora longicornis

829

0

0

0

 

829


 

ST

TOW

N

DEPTH

 

TAXON

NAUPLII

COPS

FEM

MALES

OTHER

  TOTAL

4

3

3

15-0

 

Calanus finmarchicus

9792

1709

66

0

 

11567

4

3

2

70-15

 

Calanus finmarchicus

16730

8365

597

0

 

25692

4

3

1

100-70

 

Calanus finmarchicus

342

85

0

85

 

513

4

3

3

15-0

 

Centropages hamatus

 

 

332

0

 

332

4

3

2

70-15

 

Centropages hamatus

 

 

1195

0

 

1195

4

3

3

15-0

 

Centropages spp.

4645

1659

 

 

 

6304

4

3

2

70-15

 

Centropages spp.

0

6572

 

 

 

6572

4

3

1

100-70

 

Centropages spp.

427

85

 

 

 

513

4

3

3

15-0

 

Clauso./Para complex

3650

332

 

 

 

3981

4

3

2

70-15

 

Clauso./Para complex

15535

597

 

 

 

16132

4

3

1

100-70

 

Clauso./Para complex

12044

171

 

 

 

12215

4

3

3

15-0

 

Euphausids

 

 

 

 

332

332

4

3

3

15-0

 

Gastr larv & pteros

 

 

 

63038

63038

4

3

2

70-15

 

Gastr larv & pteros

 

 

 

212707

212707

4

3

1

100-70

 

Gastr larv & pteros

 

 

 

21696

21696

4

3

1

100-70

 

Metridia lucens

 

 

342

1879

 

2221

4

3

3

15-0

 

Metridia spp.

25547

0

 

 

 

25547

4

3

2

70-15

 

Metridia spp.

112926

25692

2390

2390

 

143398

4

3

1

100-70

 

Metridia spp.

15375

4271

 

 

 

19646

4

3

2

70-15

 

Microcalanus spp.

 

597

2390

0

 

2987

4

3

1

100-70

 

Microcalanus spp.

 

3758

2306

0

 

6065

4

3

3

15-0

 

Microsetella norvegica

332

4977

 

 

 

5308

4

3

2

70-15

 

Microsetella norvegica

7170

54969

 

 

 

62139

4

3

1

100-70

 

Microsetella norvegica

598

21952

 

 

 

22550

4

3

3

15-0

 

Oithona spp.

109818

49103

12276

664

 

171861

4

3

2

70-15

 

Oithona spp.

347741

216292

23900

8962

 

596895

4

3

1

100-70

 

Oithona spp.

36644

16486

9823

0

 

62953

4

3

3

15-0

 

Oncaea spp.

 

332

 

 

 

332

4

3

2

70-15

 

Oncaea spp.

 

7767

 

 

 

7767

4

3

1

100-70

 

Oncaea spp.

 

4442

 

 

 

4442

4

3

2

70-15

 

Paracalanus spp.

 

597

0

0

 

597

4

3

3

15-0

 

Pseudocalanus spp.

7164

2169

329

131

 

9792

4

3

2

70-15

 

Pseudocalanus spp.

47799

5975

1792

597

 

56164

4

3

1

100-70

 

Pseudocalanus spp.

1025

0

0

0

 

1025

4

3

3

15-0

 

Temora longicornis

332

0

0

0

 

332

4

3

2

70-15

 

Temora longicornis

1792

0

0

0

 

1792


 

5

4

4

15-0

 

Calanus finmarchicus

18177

3588

0

0

 

21765

5

4

3

40-15

 

Calanus finmarchicus

22700

6486

463

0

 

29648

5

4

2

70-40

 

Calanus finmarchicus

12451

2930

0

549

 

15930

5

4

1

100-70

 

Calanus finmarchicus

357

119

119

119

 

715

5

4

3

40-15

 

Centropages hamatus

 

 

463

0

 

463

5

4

4

15-0

 

Centropages spp.

4544

1674

 

 

 

6219

5

4

3

40-15

 

Centropages spp.

9265

2316

 

 

 

11581

5

4

2

70-40

 

Centropages spp.

6185

1767

 

 

 

7952

5

4

4

15-0

 

Clauso./Para complex

239

239

 

 

 

478

5

4

3

40-15

 

Clauso./Para complex

463

927

 

 

 

1390

5

4

2

70-40

 

Clauso./Para complex

5301

0

 

 

 

5301

5

4

1

100-70

 

Clauso./Para complex

18708

0

 

 

 

18708

5

4

1

100-70

 

Clausocalanus spp.

 

 

119

0

 

119

5

4

2

70-40

 

Metridia lucens

 

 

884

0

 

884

5

4

1

100-70

 

Metridia lucens

 

 

238

596

 

834

5

4

4

15-0

 

Metridia spp.

9328

0

 

 

 

9328

5

4

3

40-15

 

Metridia spp.

103306

927

 

 

 

104233

5

4

2

70-40

 

Metridia spp.

95418

7952

 

 

 

103370

5

4

1

100-70

 

Metridia spp.

13107

3336

 

 

 

16444

5

4

2

70-40

 

Microcalanus spp.

 

884

884

0

 

1767

5

4

1

100-70

 

Microcalanus spp.

 

6077

2264

0

 

8341

5

4

4

15-0

 

Microsetella norvegica

478

718

 

 

 

1196

5

4

3

40-15

 

Microsetella norvegica

1853

2780

 

 

 

4633

5

4

2

70-40

 

Microsetella norvegica

5301

28272

 

 

 

33573

5

4

1

100-70

 

Microsetella norvegica

3336

17039

 

 

 

20376

5

4

4

15-0

 

Oithona spp.

116477

79406

9806

0

 

205689

5

4

3

40-15

 

Oithona spp.

243673

201053

14824

2316

 

461866

5

4

2

70-40

 

Oithona spp.

269469

147545

6185

7068

 

430266

5

4

1

100-70

 

Oithona spp.

68039

16801

8460

0

 

93300

5

4

2

70-40

 

Oncaea spp.

 

1767

 

 

 

1767

5

4

1

100-70

 

Oncaea spp.

 

2621

 

 

 

2621

5

4

4

15-0

 

Pseudocalanus spp.

16264

1435

478

0

 

18177

5

4

3

40-15

 

Pseudocalanus spp.

45399

9728

4169

3706

 

63003

5

4

2

70-40

 

Pseudocalanus spp.

26917

8606

366

549

 

36439

5

4

1

100-70

 

Pseudocalanus spp.

1430

119

119

0

 

1668

5

4

4

15-0

 

Temora longicornis

239

0

0

0

 

239

5

4

2

70-40

 

Temora longicornis

1767

0

0

0

 

1767


 

6

5

1

100-70

 

Bivalve larv.

 

 

 

 

64

64

6

5

4

15-0

 

Calanus finmarchicus

21136

9058

216

0

 

30410

6

5

3

40-15

 

Calanus finmarchicus

17405

5983

0

0

 

23388

6

5

2

70-40

 

Calanus finmarchicus

4789

2052

0

0

 

6841

6

5

1

100-70

 

Calanus finmarchicus

192

128

0

0

 

320

6

5

4

15-0

 

Centropages hamatus

 

 

0

1721

 

1721

6

5

4

15-0

 

Centropages spp.

5592

3011

 

 

 

8603

6

5

3

40-15

 

Centropages spp.

13597

4351

 

 

 

17949

6

5

2

70-40

 

Centropages spp.

2736

1368

 

 

 

4105

6

5

1

100-70

 

Centropages spp.

128

64

 

 

 

192

6

5

4

15-0

 

Clauso./Para complex

3441

0

 

 

 

3441

6

5

3

40-15

 

Clauso./Para complex

15773

1632

 

 

 

17405

6

5

2

70-40

 

Clauso./Para complex

18813

1026

 

 

 

19839

6

5

1

100-70

 

Clauso./Para complex

26857

64

 

 

 

26921

6

5

2

70-40

 

Clausocalanus spp.

 

 

342

0

 

342

6

5

1

100-70

 

Clausocalanus spp.

 

 

64

0

 

64

6

5

2

70-40

 

Euphausids

 

 

 

 

508

508

6

5

1

100-70

 

Euphausids

 

 

 

 

64

64

6

5

4

15-0

 

Metridia spp.

29249

0

 

 

 

29249

6

5

3

40-15

 

Metridia spp.

120202

1632

 

 

 

121833

6

5

2

70-40

 

Metridia spp.

76276

15734

 

 

 

92011

6

5

1

100-70

 

Metridia spp.

15986

2110

895

128

 

19119

6

5

2

70-40

 

Microcalanus spp.

 

5815

1026

0

 

6841

6

5

1

100-70

 

Microcalanus spp.

 

4988

384

0

 

5371

6

5

4

15-0

 

Microsetella norvegica

0

860

 

 

 

860

6

5

3

40-15

 

Microsetella norvegica

544

21756

 

 

 

22300

6

5

2

70-40

 

Microsetella norvegica

5473

30442

 

 

 

35915

6

5

1

100-70

 

Microsetella norvegica

1151

0

 

 

 

1151

6

5

4

15-0

 

Oithona spp.

135059

124736

17635

430

 

277861

6

5

3

40-15

 

Oithona spp.

243123

200699

10334

544

 

454700

6

5

2

70-40

 

Oithona spp.

152895

77303

10946

3763

 

244906

6

5

1

100-70

 

Oithona spp.

23787

6394

831

1407

 

32420

6

5

3

40-15

 

Oncaea spp.

 

544

 

 

 

544

6

5

2

70-40

 

Oncaea spp.

 

8893

 

 

 

8893

6

5

1

100-70

 

Oncaea spp.

 

3837

 

 

 

3837

6

5

4

15-0

 

Pseudocalanus spp.

15313

6902

2157

216

 

24587

6

5

3

40-15

 

Pseudocalanus spp.

24475

10334

1088

544

 

36441

6

5

2

70-40

 

Pseudocalanus spp.

15392

3420

684

0

 

19497

6

5

1

100-70

 

Pseudocalanus spp.

512

128

0

64

 

703

6

5

4

15-0

 

Temora longicornis

430

0

0

0

 

430

6

5

3

40-15

 

Temora longicornis

544

0

0

0

 

544

6

5

2

70-40

 

Temora longicornis

684

0

0

0

 

684

6

5

1

100-70

 

Temora longicornis

64

0

0

0

 

64


 

7

6

2

40-15

 

Barnacle nauplii+cyprids

 

 

 

 

1362

1362

7

6

3

15-0

 

Bivalve larv.

 

 

 

 

742

742

7

6

3

15-0

 

Calanus finmarchicus

27460

2226

0

247

 

29934

7

6

2

40-15

 

Calanus finmarchicus

28612

1907

0

272

 

30792

7

6

1

70-40

 

Calanus finmarchicus

19983

2983

0

0

 

22966

7

6

2

40-15

 

Centropages hamatus

 

 

0

272

 

272

7

6

3

15-0

 

Centropages spp.

7916

742

 

 

 

8659

7

6

2

40-15

 

Centropages spp.

11445

3815

 

 

 

15260

7

6

1

70-40

 

Centropages spp.

8935

1787

 

 

 

10722

7

6

3

15-0

 

Clauso./Para complex

7669

990

 

 

 

8659

7

6

2

40-15

 

Clauso./Para complex

19347

2997

 

 

 

22344

7

6

1

70-40

 

Clauso./Para complex

32166

5957

 

 

 

38122

7

6

3

15-0

 

Clausocalanus spp.

 

 

495

0

 

495

7

6

2

40-15

 

Clausocalanus spp.

 

 

817

0

 

817

7

6

3

15-0

 

Echinoderm larvae

 

 

 

 

247

247

7

6

2

40-15

 

Echinoderm larvae

 

 

 

 

817

817

7

6

1

70-40

 

Echinoderm larvae

 

 

 

 

1787

1787

7

6

3

15-0

 

Eucalanus spp.

 

0

247

0

 

247

7

6

2

40-15

 

Eucalanus spp.

 

1362

0

0

 

1362

7

6

1

70-40

 

Eucalanus spp.

 

1191

0

0

 

1191

7

6

3

15-0

 

Gastr larv & pteros

 

 

 

33892

33892

7

6

2

40-15

 

Gastr larv & pteros

 

 

 

47686

47686

7

6

3

15-0

 

Metridia lucens

 

 

495

0

 

495

7

6

2

40-15

 

Metridia lucens

 

 

817

817

 

1635

7

6

3

15-0

 

Metridia spp.

32655

2474

 

 

 

35129

7

6

2

40-15

 

Metridia spp.

73573

5450

 

 

 

79023

7

6

1

70-40

 

Metridia spp.

66118

2383

 

 

 

68501

7

6

3

15-0

 

Microcalanus spp.

 

1979

0

0

 

1979

7

6

2

40-15

 

Microcalanus spp.

 

4360

272

0

 

4632

7

6

1

70-40

 

Microcalanus spp.

 

1787

596

0

 

2383

7

6

3

15-0

 

Microsetella norvegica

1484

742

 

 

 

2226

7

6

2

40-15

 

Microsetella norvegica

1362

13897

 

 

 

15260

7

6

1

70-40

 

Microsetella norvegica

5957

9531

 

 

 

15487

7

6

3

15-0

 

Oithona spp.

65558

46509

4700

247

 

117015

7

6

2

40-15

 

Oithona spp.

129979

53136

3815

2180

 

189109

7

6

1

70-40

 

Oithona spp.

138193

60161

4170

1787

 

204311

7

6

3

15-0

 

Oncaea spp.

 

1732

 

 

 

1732

7

6

2

40-15

 

Oncaea spp.

 

4632

 

 

 

4632

7

6

1

70-40

 

Oncaea spp.

 

1787

 

 

 

1787

7

6

2

40-15

 

Paracalanus spp.

 

 

272

0

 

272

7

6

3

15-0

 

Pseudocalanus spp.

12864

1732

0

247

 

14843

7

6

2

40-15

 

Pseudocalanus spp.

29157

7902

2180

545

 

39784

7

6

1

70-40

 

Pseudocalanus spp.

42650

19983

3579

597

 

66809

7

6

3

15-0

 

Temora longicornis

742

0

0

0

 

742

7

6

2

40-15

 

Temora longicornis

1090

545

0

0

 

1635

7

6

1

70-40

 

Temora longicornis

1787

0

0

0

 

1787


 

8

7

2

70-40

 

Bivalve larv.

 

 

 

 

2332

2332

8

7

1

90-70

 

Bivalve larv.

 

 

 

 

1503

1503

8

7

4

15-0

 

Calanus finmarchicus

2249

1840

0

0

 

4089

8

7

3

40-15

 

Calanus finmarchicus

2896

869

145

0

 

3910

8

7

2

70-40

 

Calanus finmarchicus

2799

1399

0

466

 

4665

8

7

1

90-70

 

Calanus finmarchicus

751

0

0

0

 

751

8

7

4

15-0

 

Centropages hamatus

 

 

0

613

 

613

8

7

3

40-15

 

Centropages hamatus

 

 

1340

0

 

1340

8

7

2

70-40

 

Centropages hamatus

 

 

466

0

 

466

8

7

4

15-0

 

Centropages spp.

7974

3680

 

 

 

11654

8

7

3

40-15

 

Centropages spp.

16978

5808

0

 

 

22787

8

7

2

70-40

 

Centropages spp.

17726

13528

 

 

 

31254

8

7

1

90-70

 

Centropages spp.

3757

1252

 

 

 

5010

8

7

4

15-0

 

Clauso./Para complex

1227

204

 

 

 

1431

8

7

3

40-15

 

Clauso./Para complex

1340

1340

 

 

 

2681

8

7

2

70-40

 

Clauso./Para complex

2332

466

 

 

 

2799

8

7

1

90-70

 

Clauso./Para complex

0

2755

 

 

 

2755

8

7

4

15-0

 

Clausocalanus spp.

 

 

204

0

 

204

8

7

4

15-0

 

Echinoderm larvae

 

 

 

 

409

409

8

7

3

40-15

 

Echinoderm larvae

 

 

 

 

4915

4915

8

7

2

70-40

 

Echinoderm larvae

 

 

 

 

7930

7930

8

7

1

90-70

 

Echinoderm larvae

 

 

 

 

7014

7014

8

7

1

90-70

 

Gastr larv & pteros

 

 

 

18536

18536

8

7

4

15-0

 

Metridia lucens

 

 

818

0

 

818

8

7

3

40-15

 

Metridia lucens

 

 

8489

447

 

8936

8

7

2

70-40

 

Metridia lucens

 

 

4198

0

 

4198

8

7

1

90-70

 

Metridia lucens

 

 

1503

0

 

1503

8

7

4

15-0

 

Metridia spp.

3271

1227

 

 

 

4498

8

7

3

40-15

 

Metridia spp.

8489

5808

 

 

 

14298

8

7

2

70-40

 

Metridia spp.

20059

6064

 

 

 

26123

8

7

1

90-70

 

Metridia spp.

10520

10520

 

 

 

21041

8

7

2

70-40

 

Microcalanus spp.

 

466

466

0

 

933

8

7

1

90-70

 

Microcalanus spp.

 

501

250

0

 

751

8

7

4

15-0

 

Microsetella norvegica

1840

21468

 

 

 

23308

8

7

3

40-15

 

Microsetella norvegica

4915

33957

 

 

 

38872

8

7

2

70-40

 

Microsetella norvegica

8863

28922

 

 

 

37785

8

7

1

90-70

 

Microsetella norvegica

5260

15279

 

 

 

20540

8

7

4

15-0

 

Oithona spp.

106931

68493

5111

0

 

180536

8

7

3

40-15

 

Oithona spp.

162189

117955

4021

0

 

284165

8

7

2

70-40

 

Oithona spp.

247703

103559

4198

13528

 

368989

8

7

1

90-70

 

Oithona spp.

97939

59615

1252

13025

 

171831

8

7

2

70-40

 

Oncaea spp.

 

466

 

 

 

466

8

7

1

90-70

 

Oncaea spp.

 

250

 

 

 

250

8

7

2

70-40

 

Polychaetes

 

 

 

 

466

466

8

7

4

15-0

 

Pseudocalanus spp.

2658

818

409

0

 

3885

8

7

3

40-15

 

Pseudocalanus spp.

2896

869

434

290

 

4489

8

7

2

70-40

 

Pseudocalanus spp.

5131

933

466

0

 

6531

8

7

1

90-70

 

Pseudocalanus spp.

2755

0

0

0

 

2755

8

7

3

40-15

 

Temora longicornis

0

0

0

447

 

447

8

7

1

90-70

 

Unident. Harpact

0

250

 

 

 

250

 


 

 

EGG PRODUCTION STUDIES Feb-Mar. 1999

J. Runge, B. Niehoff, P. Joly

 

Egg production rates of Calanus finmarchicus and Pseudocalanus spp. and hatching success of Calanus were measured along the Gulf of Maine transect. To measure egg production rates, females from vertical live tows were sorted immediately after capture. At each station 40 female Calanus finmarchicus were placed individually in petri dishes (30ml). At 8h intervalls, eggs were counted and removed from the incubation vials. Pseudocalanus spp. females were kept in groups of 5 in scintillation vials (45ml) containing either filtrated seawater or a feeding mixture containing Skeletonema costatum and Nannochloropsis sp. After 24 hours, the females were preserved for later analysis of egg sac number and size. Part of the live tows for the egg production measurements was preserved in formaldehyde and glutaraldehyde for studies of gonad development, including determination of the reproductive index and staging of gonad development. Hatching success of  Calanus eggs produced during incubations was measured by incubation of batches of 50 randomly selected eggs for a 72 h period at 5-7 °C.

 

Egg production rates of C. finmarchicus varied between 15 and 62 eggs female-1 d-1 (Table 01). Clutch size ranged between 39 and 53 eggs. Hatching success varied between 63 and 92%, indicating maternal nutritional conditions were not a significant factor in determining egg survival. The lowest egg production rates were observed at the most nearshore Gulf of Maine station. Egg production rates at deeper stations in the central Gulf were relatively constant at 45-53 eggs female-1 d-1. The Pseudocalanus incubations were preserved for later analysis.

 

Table 5. Summary of egg production data for Calanus finmarchicus. EPR denotes egg production rate (eggs female-1 d-1) and clutch size is mean eggs female-1. Standard error in parentheses (n= 36-40). Hatch success represent percentage of eggs hatching to nauplii Standard error (n=5) in parentheses. No data for GOM-2 and GOM-9.

 

Date

 

Station

Time

EPR

Clutch Size

Hatch success (%)

23 Feb.

GB-01

1400

34  (3.3)

40 (3.0)

92

27 Feb.

GOM-2

1310

15  (3.4)

39 (3.5)

-

27 Feb.

GOM-3

2020

62  (7.3)

53 (2.6)

63 (7.4)

28 Feb.

GOM-4

0920

57  (5.3)

48 (2.3)

79 (3.2)

28 Feb.

GOM-5

1410

40  (5.2)

49 (3.0)

79 (2.0)

28 Feb.

GOM-6

2000

53  (5.6)

49 (2.4)

80 (2.2)

02 Mar.

GOM-7

1115

56  (6.2)

45 (2.9)

86 (2.5)

02 Mar.

GOM-8

2130

34  (3.9)

36.(2.7)

72 (1.6)

03 Mar.

GOM-9

1035

55  (6.1)

46 (3.1)

-

 


EN319 List of Personnel

 

Name

Title

Organization

 

 

 

Dr. Edward Durbin

Chief Scientist

GSO, URI, Narragansett, RI

Dr. Jeffrey A. Runge

Scientist

Institut Marice Lamontagne, Quebec

Dr. Robert G Campbell

Marine Scientist

GSO, URI, Narragansett, RI

Ms  Maria Casas

Research Associate

GSO, URI, Narragansett, RI

Ms Melissa Wagner

Graduate Student

GSO, URI, Narragansett, RI

Dr Barbara Niehoff

Post Doc.

WHOI, Woods Hole, MA

Pierre Joly

Technician

Institut Marice Lamontagne, Quebec

Isabelle Berube

Technician

Institut Marice Lamontagne, Quebec

Ms Guylaine Morrier

Graduate Student

UQAR, Rimouski, Quebec

Ms Sandrin Guittard

Graduate Student

UQAR, Rimouski, Quebec

Mr David Field

Graduate Student

Scripps Inst Oceanogr., UCSD, CA

Mr Sean Smith

Student

Univ. New England, Biddeford, ME


EVENT  LOG EN319

 

 

Event No: shdddyr.###,

 

 

 

 

 

 

 

 

 

 

 

where sh=ship, ddd=day of year, yr=year,

 

 

 

 

 

 

 

 

 

###=consecutive within day, starts at 1 for each new day at midnight.

 

 

 

 

 

All times local

 

 

1-12

1-31

hh=hour

 

 

Depth in meters

 

 

 

 

 

 

 

mm=minute

 

 

 

 

 

 

 

 

 

 

 

 

 

s/e=Start/End

 

 

 

 

 

 

 

 

 

 

 

 

 

ddmm.mmm

ddmm.mmm

Water

Cast

Science

 

Eventno

Instr

cast#

Station#

Mnth

Day

hhmm

s/e

Lat

Lon

Depth

Depth

Investig.

Comments

EN05299.001

 

 

2

21

915

s

4129.53

7125.12

8

 

Durbin

Left GSO

EN05499.001

CTD

1

1

2

23

1240

s

4201.95

6708.53

52

45

Durbin

 

EN05499.002

CTD

1

1

2

23

1250

e

4202.42

6709.54

50

45

Durbin

 

EN05499.003

ZPN

1

1

2

23

1333

s

4204.13

6710.43

47

40

Runge

 

EN05499.004

ZPN

1

1

2

23

1340

e

4204.28

6710.52

47

40

Runge

 

EN05499.005

ZPN

2

1

2

23

1343

s

4204.32

6710.57

46

45

Runge

 

EN05499.006

ZPN

2

1

2

23

1347

e

4204.41

6710.61

46

45

Runge

 

EN05599.001

 

 

2

24

1315

s

4339.35

7014.82

9

 

 

Ar Portland

EN05899.001

 

 

2

27

600

e

4339.35

7014.82

9

 

 

Lve, Portland

EN05899.002

ZPN

3

2

2

27

1250

s

4342.97

6850.05

115

100

Runge

 

EN05899.003

ZPN

3

2

2

27

1257

e

4342.97

6850.05

115

100

Runge

 

EN05899.004

ZPN

4

2

2

27

1305

s

4342.88

6849.90

105

50

Durbin

 

EN05899.005

ZPN

4

2

2

27

1310

e

4342.88

6849.90

105

50

Durbin

 

EN05899.006

ZPP

1

2

2

27

1525

s

4342.52

6848.49

118

100

Durbin

 

EN05899.007

ZPP

1

2

2

27

1607

e

4342.66

6847.93

138

100

Durbin

 

EN05899.008

CTD

2

2

2

27

1628

s

4342.70

6847.70

124

112

Durbin

 

EN05899.009

CTD

2

2

2

27

1639

e

4342.73

6847.46

124

112

Durbin

 

EN05899.010

MOC-1

1

2

2

27

1716

s

4343.10

6847.60

120

109

Durbin

 

EN05899.011

MOC-1

1

2

2

27

1734

e

4343.50

6848.10

111

109

Durbin

 

EN05899.012

ZPN

5

3

2

27

2027

s

4333.00

6824.70

175

160

Runge

E.P. rates

EN05899.013

ZPN

5

3

2

27

2038

e

4332.90

6824.60

180

160

Runge

 

EN05899.014

ZPN

6

3

2

27

2042

s

4332.90

6824.50

192

160

Runge

73µm dead

EN05899.015

ZPN

6

3

2

27

2051

e

4332.90

6824.50

196

160

Runge

 

EN05899.016

MOC-1

2

3

2

27

2103

s

4332.90

6824.70

176

165

Durbin

 

EN05899.017

MOC-1

2

3

2

27

2138

e

4333.70

6825.50

170

165

Durbin

 

EN05899.018

CTD

3

3

2

27

2204

s

4333.25

6825.33

171

168

Durbin

 

EN05899.019

CTD

3

3

2

27

2224

e

4333.00

6825.25

171

168

Durbin

 

EN05899.020

ZPN

7

3

2

27

2238

s

4332.90

6825.20

166

100

Runge

 

EN05899.021

ZPN

7

3

2

27

2244

e

4332.80

6825.10

166

100

Runge

 

EN05899.022

ZPP

2

3

2

27

2301

s

4332.60

6825.10

179

100

Durbin

 

EN05899.023

ZPP

2

3

2

27

2340

e

4332.20

6824.80

173

100

Durbin

 

EN05999.001

ZPP

3

4

2

28

613

s

4320.40

6800.70

253

100

Durbin

 

EN05999.002

ZPP

3

4

2

28

658

e

4320.50

6800.90

253

100

Durbin

 

EN05999.003

CTD

4

4

2

28

720

s

4320.52

6801.08

243

239

Durbin

 

EN05999.004

CTD

4

4

2

28

737

e

4320.73

6801.41

243

239

Durbin

 

EN05999.005

MOC-1

3

4

2

28

751

s

4320.90

6801.40

244

237

Durbin

 

EN05999.006

MOC-1

3

4

2

28

842

e

4322.10

6800.20

248

237

Durbin

 

EN05999.007

ZPN

8

4

2

28

905

s

4321.50

6800.09

248

100

Runge

73µm, 0.5mØ

EN05999.008

ZPN

8

4

2

28

911

e

4321.60

6800.12

248

100

Runge

 

EN05999.009

ZPN

9

4

2

28

915

s

4321.60

6800.16

248

175

Runge

158µm, 1.0m

EN05999.010

ZPN

9

4

2

28

928

e

4321.80

6800.40

256

175

Runge

 

EN05999.011

ZPN

10

4

2

28

932

s

4321.80

6800.40

248

20

Campbell

73µm, 1.0mØ

EN05999.012

ZPN

10

4

2

28

934

e

4321.80

6800.40

248

20

Campbell

 

EN05999.013

ZPP

4

5

2

28

1200

s

4259.90

6743.70

165

100

Durbin

 

EN05999.014

ZPP

4

5

2

28

1245

e

4259.60

6744.00

165

100

Durbin

 

EN05999.015

CTD

5

5

2

28

1259

s

4259.52

6744.03

163

157

Durbin

 

EN05999.016

CTD

5

5

2

28

1311

e

4259.45

6744.10

163

157

Durbin

 

EN05999.017

MOC-1

4

5

2

28

1327

s

4259.39

6744.00

163

161

Durbin

 

EN05999.018

MOC-1

4

5

2

28

1348

e

4259.06

6743.73

172

161

Durbin

 

EN05999.019

ZPN

11

5

2

28

1400

s

4258.90

6743.73

172

100

Runge

73 µm, 0.5 m

EN05999.020

ZPN

11

5

2

28

1405

e

4258.90

6743.81

172

100

Runge

73 µm, 0.5 m

EN05999.021

ZPN

12

5

2

28

1407

s

4258.90

6743.82

172

40

Campbell

73 µm, 0.5 m

EN05999.022

ZPN

12

5

2

28

1409

e

4258.90

6743.88

172

40

Campbell

73 µm, 0.5 m

EN05999.023

ZPN

13

5

2

28

1410

s

4258.90

6743.90

172

150

Runge

159µm, 1.0 m

EN05999.024

ZPN

13

5

2

28

1420

e

4259.01

6744.06

172

150

Runge

159µm, 1.0 m

EN05999.025

ZPP

5

6

2

28

1645

s

4239.56

6730.63

200

100

Durbin

 

EN05999.026

ZPP

5

6

2

28

1730

e

4239.79

6730.94

200

100

Durbin

 

EN05999.027

CTD

6

6

2

28

1754

s

4239.93

6731.01

206

199

Durbin

 

EN05999.028

CTD

6

6

2

28

1809

e

4240.23

6731.47

206

199

Durbin

 

EN05999.029

MOC-1

5

6

2

28

1833

s

4240.17

6731.18

200

202

Durbin

 

EN05999.030

MOC-1

5

6

2

28

1928

e

4239.62

6729.18

210

202

Durbin

 

EN05999.031

ZPN

14

6

2

28

1943

s

4239.88

6729.14

200

100

Runge

73 µm, 0.5 m

EN05999.032

ZPN

14

6

2

28

1951

e

4240.00

6729.26

200

100

Runge

 

EN05999.033

ZPN

15

6

2

28

1955

s

4240.07

6729.34

200

150

Runge

158µm, 1.0 m

EN05999.034

ZPN

15

6

2

28

2006

e

4240.24

6729.54

200

150

Runge

 

EN06199.001

ZPN

16

7

3

2

833

s

4130.42

6646.81

73

50

Campbell

100µm, 1.0 m

EN06199.002

ZPN

16

7

3

2

840

e

4131.58

6646.88

73

50

Campbell

 

EN06199.003

ZPN

17

7

3

2

843

s

4130.66

6646.90

73

70

Runge

73µm, 0.5 m

EN06199.004

ZPN

17

7

3

2

847

e

4130.76

6646.93

73

70

Runge

 

EN06199.005

ZPN

18

7

3

2

1055

s

4132.85

6644.36

75

50

Campbell

100µm, 1.0 m

EN06199.006

ZPN

18

7

3

2

1100

e

4132.89

6644.32

74

50

Campbell

 

EN06199.007

ZPN

19

7

3

2

1105

s

4132.95

6644.24

74

50

Campbell

100µm, 1.0 m

EN06199.008

ZPN

19

7

3

2

1113

e

4133.05

6644.06

73

50

Campbell

 

EN06199.009

ZPN

20

7

3

2

1115

s

4133.06

6644.06

73

70

Runge

158 µm, 1.0 m

EN06199.010

ZPN

20

7

3

2

1119

e

4133.11

6643.98

74

70

Runge

 

EN06199.011

CTD

7

7

3

2

1135

s

4133.02

6643.64

75

66

Durbin

 

EN06199.012

CTD

7

7

3

2

1144

e

4132.84

6643.31

75

66

Durbin

 

EN06199.013

MOC-1

6

7

3

2

1202

s

4132.47

6643.21

75

70

Durbin

 

EN06199.014

MOC-1

6

7

3

2

1214

e

4132.01

6643.20

74

70

Durbin

 

EN06199.015

ZPP

6

7

3

2

1255

s

4131.85

6642.76

75

70

Durbin

 

EN06199.016

ZPP

6

7

3

2

1328

e

4131.21

6640.81

75

70

Durbin

 

EN06199.017

ZPN

21

7

3

2

1335

s

4131.12

6640.64

75

50

Campbell

100µm, 1.0 m

EN06199.018

ZPN

21

7

3

2

1342

e

4131.01

6640.40

76

50

Campbell

 

EN06199.019

ZPN

22

8

3

2

1953

s

4212.29

6720.16

217

150

Runge

158µm, 1.0 m

EN06199.020

ZPN

22

8

3

2

1959

e

4212.27

6720.14

217

150

Runge

 

EN06199.021

MOC-1

7

8

3

2

2022

s

4212.27

6720.60

219

218

Durbin

 

EN06199.022

MOC-1

7

8

3

2

2102

e

4212.22

6722.28

233

218

Durbin

 

EN06199.023

CTD

8

8

3

2

2131

s

4212.12

6722.77

235

226

Durbin

 

EN06199.024

CTD

8

8

3

2

2142

e

4211.89

6723.17

235

226

Durbin

 

EN06199.025

ZPP

7

8

3

2

2201

s

4211.84

6723.33

234

90

Durbin

 

EN06199.026

ZPP

7

8

3

2

2229

e

4211.98

6722.80

233

90

Durbin

 

EN06299.001

ZPN

23

9

3

3

1008

s

4210.08

6935.51

239

150

Niehoff

333µm, 1.0m

EN06299.002

ZPN

23

9

3

3

1019

e

4210.19

6935.55

239

150

Niehoff

 

EN06299.003

ZPN

24

9

3

3

1023

s

4210.22

6935.57

239

150

Wagner

333µm, 1.0m

EN06299.004

ZPN

24

9

3

3

1033

e

4210.33

6935.63

235

150

Wagner

 

EN06299.005

ZPN

25

9

3

3

1035

s

4210.36

6935.64

234

150

Niehoff

333µm, 1.0m

EN06299.006

ZPN

25

9

3

3

1046

e

4210.48

6935.68

234

150

Niehoff

 

EN06299.007

CTD

9

9

3

3

1156

s

4210.70

6935.74

243

237

Durbin

 

EN06299.008

CTD

9

9

3

3

1118

e

4210.82

6935.76

243

237

Durbin

 

EN06299.009

ZPN

26

10

3

3

1516

s

4208.76

7024.97

64

60

Runge

75 µm. 0.5m

EN06299.010

ZPN

26

10

3

3

1523

e

4208.78

7024.96

64

60

Runge

Hit bottom

EN06299.011

ZPN

27

10

3

3

1528

s

4208.80

7024.95

64

50

Runge

75 µm. 0.5m

EN06299.012

ZPN

27

10

3

3

1533

e

4208.84

7024.95

64

50

Runge

 

EN06299.013

ZPN

28

10

3

3

1537

s

4208.87

7024.95

64

50

Runge

333 µm, 1.0m

EN06399.001

ZPN

28

10

3

3

1542

e

4208.89

7024.97

64

50

Runge

 

EN06299.014

 

 

3

4

805

e

4129.54

7125.12

8

 

Durbin

Arr Narr