Wiebe's hand-written notes from MOCNESS ship log book regarding the tows.                                                         
8/8/03 NJC

Ship speed ~2 knots for all tows
Both ¼" and 9-track tape-recorded all tows.

KN53 Nov. 1975	

M23	Sargasso, shallow, day.  Slight boble (sic?) at the surface flow meter pin broke - tried to bring net 
back to surface to pull pin out - ship's speed too slow, angle too low in setting net; got many spurious net 
responses (cycled from net 0 to net 15 back to 0 and then to net 3) Net 4 was really net 1.  No net response 
fro net 3.  Speed in about 10 m/min until we hit 60 m then increased speed of wire in to 13 m/min.  Tow 
looks all right - good collections.  We had special funnels in cod ends but some came loose.

M24	Sargasso, deep, day.  Lost flow counts in wind - reset at 50 counts for net 0.  ¼" tape turned on as 
net 0 coming up (810 m) just before opening net1.  up at 25m/min.  No net response for 'close 2/open 3' 
but angle showed nets were changed.  No net response from 'close 3/open 4' but 'close 4/open 5' got a net 
response and 'close 5/open 6' ok. Net 7 close/8open - no net response.  All samples look good - funnels in 
cod end seem to work very well - animals in very good shape.

M25	Sargasso , deep, night.  Not very good launch - 3 spurious net responses (NR) also had to set flow 
counter due to reverse in the wind.  No NR for net 1 and therefore flow meter counter overflowed to show 
'$', however flow calculation ok.  No NR for net 2.  Net command has a bug in it - it resets itself even 
though there is no NR.  This screws up the computer and it no longer prints out net count (NC) but does 
record ELCT errors.  NR not working. - Very hard tow due to electrical malfunctions. - Samples look good.  
All nets seem to have opened and closed as expected.

M26	Sargasso, shallow, night.  No NR on net 6 close/net 7 open.  No NR on net 8 close. Samples 
look good.

M27	Ring, deep (800m), day.  Down at 30m/min; up at 25 m/min.  Very nice haul on slope water edge 
of ring core.  No electrical errors

M28	Ring, shallow (300m), day.  ¼" tape started at 1405 - just slightly after net in water.  Wire out at 
30m/min; in at ~15m/min.  We are not sure that conductivity reading when net first in water is reliable - 
looks like 1st 25 m is bad.  Also true on other records previous to this tow.  Tow appeared perfect - no 
failures visible.

M29	Ring, deep, night.  When net at 640m (1500 meters of wire out, MWD), slip rings came off the 
winch and signal was cut.  Winch halted until slip rings repaired.  Time when failure occurred = 1909, 
thanks to Al Morton and Steve Boyd back to business at 1938.  Resume paying out wire - while net 5 was 
open speed of net got up over 3 knots; so I had ship slow down but it was too much and net lost depth thus 
net 5 undulated in interval 400-300m.  Beautiful catches.  1 large fish in bucket 4 to Margo for photophore 
removal from under eyes. 

M30	Ring, shallow, night.  ¼" tape on at 2246.  We got a spurious NR during the set of net 0 - strange 
tow - net 2 started dropping and went back down to 191m with no change in ship's speed or winch hauling 
rate.  Tow not good - no NR at all except 2 more spurious ones.  Aborted tow.  We had the motor 
unplugged thus no nets were tripped.  Net 0 fished the entire time.  All samples in cod-end buckets were 
washed and preserved to look at contamination.  Most were almost entirely clean except net 8 which may 
have had material in the net from previous tow.

M31	Ring, very deep, day: 0-1600m.  ¼" channel 1 down - off at 1031-1034 to rewind and switch 
channels to 2 while nets still going down and used channel 2 for apart of trace up - 0244 channel #3 when 
net started up.  Had a lot of trouble with the line printer.  Tom Crook spent a good portion of towing time 
with system shut down for repairs.  Problem with wire going under ship stopped wire in at 1135.  Start in 
again at 1152; depth of net ~1500.  Net 2 fished from 1400 to 1500 m or deeper and then up to  1200m.  ¼" 
tape put on channel 2 tape 2 at 1348 or 459meters depth.  Lost cod end bucket 4 - entire assembly came 
off.

M32	Ring-D, shallow, night,.  Very nice tow - no problems -  good catches at center of ring.  Note as in 
all past shallow and deep tows from about 100m to the surface samples had a lot of bioluminescent 
animals.  I think they are jellies but I haven't been able to tell yet.

M33	Ring, deep, night.  One spurious NC going in.  Weather rainy and windy, sea quite choppy.  Out at 
30m/min.

M34	Ring high velocity core, deep, day.  We got 1 spurious NR in setting nets into water.  Sea very 
rough at launch and storm increased ferocity with winds increasing to 35 kts and seas building to over 15'.  
1324-47-1/4" tape ran out of tape - rewind and then record on channel 2 on line(?) at =1327, 141m depth.

M35	Slope, deep, night.  Started ¼" tape at bottom of tow.  1944 slowed ship down. Wind freshening as 
storm approached.  Slight overshoot on net 6 close/net 7 open.  Very nice hauls.

M36	Slope, shallow, night.  Forgot to turn on deck unit before going into aqui and before net was put in 
water.  Net was at 203m before deck unit turned on .  ¼" tape turned on as net went into water.  Net 8 
opened on "2" commands.  Very nice haul.  All samples look good.  No problems.  All nets tripped and 
responded.

M37	Slope, deep, day.  ¼" taped started at ---.  9-track tape not turned on until 932-18.  Possibly we did 
not get a header at beginning of tape.  Had difficulty getting flowmeter pin out of flowmeter.  We had to 
bring it back up to get the pin out.  In so doing, we got a spurious NR.  Printer paper advance 
malfunctioned for short time during Net 0.  On this tow, because I forgot to put header on tape, we decided 
to SW15 EN at bottom of tow while net 0 still open and then begin a new file with a header before opening 
net 1 for start up.  Thus far, MOCNESS 37 there are two files on the tape: one without a header for down 
trace, and one with a header for up trace.

M38	Slope, shallow, day.	¼" tape on at 1304 just after net in water, but I screwed up - wasn't on 
record.  Start up after rewinding: time 1309-38.  Good catches, good tow.

M39	Slope (warm-core ring edge?), deep, night.  ¼" tape started at bottom of tow.  Very nice launch.  
Water here not really typical of slope - like a warm core ring.  On start up of tow, pressure, temperature, 
and conductivity started dropping out intermittently.  The rest of the parameters appeared to be OK.  Good 
tow except for dropouts on CTP.  One thing about samples to look at is very low biomass in net 5.  
Virtually none although everything appeared to have worked.  Problem with CTD seems to have been with 
slip rings.  After cleaning, signal on MOCNESS 40 very much improved and no signal dropouts.

M40	Slope (WCRing?), deep, day.  ¼" tape on channel 2 at 1052-44, ~820 m.  This day sea was flat 
calm with only a few clouds and lots of bright sunshine.  An incredible day for the last of November.  
Water here incredibly warm and salinity shows characteristics of Sargasso Sea.  We found bucket 5 had a 
small hole in bottom edge of gauze and that organisms could be lost.  This probably explains why catches 
between 400-300m (are low).  Bucket changed.  But must look at all previous tows on this cruise with some 
care. 

M41	Slope, deep, night (at Hydrographer Canyon).  ¼" tape started at 1906.  Slip rings are again giving 
static, at least CT & P readouts are experiencing dropouts on way up.  Also having problem with NR - only 
got 1 for net 1close/n2 open.  Saw angle change for net 0 close/net1 open but hard to tell for net 2 close/net 
3 open.  Got no response for 4 close/5 open but saw angle change.  Net 5 close/6 open gave response.  Net 
6 close/7 open gave response.  Net 7 close/n8 open gave response.  Samples all looked good.  Sample 8 no 
formalin for 12-14 hours.

M42	Slope, deep, day (near Hydrographer Canyon).  Sea quite rough and wind has been blowing steady 
25-30 kts all night.  Very nice launch; starting out depth of water ~800m.  Kept net at surface for several 
minutes.  0816 - stopped winch 860m, 18 deg. angle.

M43	Slope, horizontal at 350m, day.  Started ¼" tape at 1141.  Net 1 open - long(?) horizontal but hard 
to keep net constant depth.  Seems to be a good haul; all nets responded.
