Wiebe's hand-written notes from MOCNESS ship log book regarding tapes, etc.                                                         
8/8/03 NJC

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

KN65  April 1977

M59	Sargasso off Florida, 1000m, day.  Plotting T, S%o, O2, and AN(removed AN at 280 m 
because overlapped O2).  This is first tow with new Boyd-style net response mechanism.  O2 
membrane put on within about 2 weeks of start of cruise (looks like flowmeter stuck between 
1124 and 1132 min) Red up from 700m.  Flowmeter shut down while net 2 was open.  1204 - 
(1300+ mwo) depth=655: increase wire-in to 20m/min.

M60	Sargasso, 1000m, day.  New O2 membrane installed.  Red for uptrace.  Up starts at tape 
#680.  Net response not working.  Good tow.  Observed that O2 probe probably not giving correct 
O2 reading and must be corrected.  However, in a relative sense, can see that there is a 
subsurface maximum about 80-90m which very likely coincides with the DCM.

M61	Sargasso west, 1000m, night.  Good launch, red=up trace, perfect tow.

M62	Ring 'Bob' center, 1000m, day.  New membrane used on O2 probe and new KOH.  Using 
my net response mechanism for 2nd time this cruise.  Good launch.  black=down trace; red=up 
trace.  Net command button giving static but because net response working well the miscounts of 
the NC is not causing problems.  Power surge caused computer to lose power and interrupt 
acquisition right before net entered surface.  Net 7 had small rip in Dacron sleeve (~1" slit) so 
replace net 7 with another on next tow.

M63	Ring 'Bob' center, 1000m, night.  Red=uptrace.  Tow uneventful.  Very nice; all nets 
seemed to open and close without a hitch.

M64	Sargasso west, 1000m, day.  Conductivity cell not working from surface to depth.  
Wire angle dropped dramatically once net passed below 650-700m.  Red=uptrace.  Very nice 
tow.

M65	Sargasso west, 1000m, night.  Brief screw-up: replaced conductivity cell.  Cod end 
bucket fell overboard and replaced with trawl bucket #2 which had a hole in it.  Net launched and 
then brought back to replace it with a good cod-end.  Net back in to water at 1904.  Beautiful tow.

M66	Ring 'Bob' fringe west, 1000m, day.  Conductivity cell cleaned and checked and seems to 
be working properly error relative to GeoSec CTD.  Beautiful tow.

M67	Ring 'Bob' fringe west, 1000m, night.  Had a lot of trouble with this tow.  Started out on 
ship's course of ~300 but wire started tending under the hull and the water shifted course to 170 
over short period of time.  Since there was a strong current in upper 600m this had effect of 
putting us steaming with current.  Salinometer surface value: 36.15-36.19.  With net at 1000m 
doing 2.7 kts we could not slow ship down sufficiently to haul net in at reasonable rate.  
Eventually had to change course back to 285 after swinging crane back to stern but with great 
difficulty keeping nets flying properly.  A couple of nets filtered very little water and we got a large 
number of spurious NR.  However, we did get a complete set of samples.

M68	Ring 'Bob' center, 1000m, day.  After two false starts with bad wires net system got into 
water. New O2 membrane on sensor.  At 195 put computer into IDLE and reset O2 to 3 to 13 
ml/liter to get plots of SA and O2 separated.  Net 6 took only 2 NC to open.  Very nice tow.  
However nets wrapped around each other and samples got mushed up, animals in poor 
condition.

M69	Ring 'Bob' center, 1000m, night.  Net 0 fished down to 1015m and back to 850.  We 
didn't push he NC button enough times (system wasn't set on 3 commands but rather 5).

M70	Ring 'Bob' fringe southeast, 1000m, night.  ~15 deg. at 250m.  Towing in high current 
regime - while paying wire out had to get ship's speed up to 4.5 kts after net passed 800m.

M71	Dec(?) ring 'Al' center, 1000m, night.  Had a few difficulties with flowmeter during launch - 
had to bring it out of water twice.  Finalyy changed fluorometer cable to get it working.  Lovely 
night with ½ moon.

M72	Ring 'Al' center 1000m, day.  Did not start ¼" tape until 0928-19, 310 m. depth.

M73	Slope water near Gulf Stream, 1000m, day.  O2 not set properly in INET; net membrane 
on probe.  NR started out equal to 3.

M74	Slope water near Gulf Stream, 1000m, night.  In water before AQ started.  Flow counts 
28 at time of synch.  Had to shut down printer at 2038 and had to restart O2 at 278m from OX, 
0.3, 0.13, .01 to OX .02, .12 .01 - back on at 2041.  On 1st NC at 1000m signal went completely 
scrambled for a while. Not sure 1st net dropped.  After net 4 we got no more net responses.  Bad 
tow - all nets closed at surface.

M75	Slope water near Shelf, 1000m, night.  Good tow.  Fairly uneventful tow.  All systems 
seem to have worked save for 1 NR with net 2.  I think net speed may have been too high and net 
bar slipped past NR mechanism without triggering it.

M76	Slope water near Shelf, 1000m, day.  Tape reads 0705 although ship's clocks were 
advanced 1 hr. at midnight on 29 April (ships log will be off 1 hour)

