1-m MOCNESS Tows

1

1

13 April 06

0619

33° 31.467

33° 35.900

69° 57.678

69° 53.460

Net 0: 0000-1000

Net 1: 1000-0800

Net 2: 0800-0600

Net 3: 0600-0400

Net 4: 0400-0200

Net 5: 0200-0100

Net 6: 0100-0050

Net 7: 0050-0025

Net 8: 0025-0000

1784.1

1034.9

1154.8

1319.3

1155.1

655.1

414.0

384.5

504.9

No net responses on any net, but only one bar up at end. 

2

1

14 April 06

1803

33° 37.589

33° 33.904

69° 31.554

69° 38.33

Net 0: 0000-0993

Net 1: 0993-0797 

Net 2: 0797-0600

Net 3: 0600-0400

Net 4: 0400-0200

Net 5: 0200-0100

Net 6: 0100-0050

Net 7: 0050-0025

Net 8: 0025-0000

1652.9

802.4

924.9

820.4

1193.6

471.7

264.0

178.0

272.2

3

2

16 April 06

0042

29° 59.711

29° 53.241

70° 01.648

70° 04.464

Net 0: 0000-0998

Net 1: 0998-0790

Net 2: 0790-0600

Net 3: 0600-0400

Net 4: 0400-0200

Net 5: 0200-0100

Net 6: 0100-0050

Net 7: 0050-0025

Net 8: 0025-0000

912.8

667.2

942.9

1218.2

961.3

667.4

547.5

312.1

288.8

4

2

16 April 06

0658

29° 52.09

29° 51.405

70° 04.530

70° 08.427

Net 0: 0000-1000

Net 1: 1000-0800

Net 2: 0800-0594

Net 3: 0594-0400

Net 4: 0400-0195

Net 5: 0200-0100

Net 6: 0100-0050

Net 7: 0050-0025

Net 8: 0025-0000

1233.7

782.8

754.8

821.9

896.0

412.1

203.7

150.9

305.8

Net 8 may have closed early.

Spontaneous net response at surface.

5

3

19 April 06

0904

25° 00.027

24° 52.667

59° 56.727

60° 08.148

Net 0: 0000-3300-0200

Net 1: 0200-0000

Net 2:

Net 3:

Net 4:

Net 5:

Net 6:

Net 7:

Net 8:

2618.2

4278.8

2730.9

1219.5

1561.6

2546.2

1880.0

2210.2

1965.4

None of nets worked right. Cables with swaged fittings not loaded in toggle correctly.

6

3

20 April 06

1114

24° 49.348

24° 49.445

60° 26.812

60° 26.800

Net 0: 0000-0070

Net 1:

Net 2:

Net 3:

Net 4:

Net 5:

Net 6:

Net 7:

Net 8:

923.3

Lost signal when net at 70m.

7

3

20 April 06

1244

24° 52.133

24° 57.692

60° 29.228

60° 32.159

Net 0: 0000-1000

Net 1: 1000-0800

Net 2: 0800-0600

Net 3: 0600-0400

Net 4: 0400-0200

Net 5: 0200-0100

Net 6: 0100-0050

Net 7: 0050-0025

Net 8: 0025-0000

2626.4

1065.1

1091.8

1058.6

1019.9

806.7

410.8

373.3

407.2

8

3

20 April 06

1903

24° 59.966

25° 03.294

60° 30.776

60° 35.552

Net 0: 0000-1000-0800

Net 1: 0800-0600

Net 2: 0588-0400

Net 3: 0400-0200

Net 4: 0200-0100

Net 5: 0100-0050

Net 6: 0050-0025

Net 7: 0025-0000

Net 8: did not fish

3068.0

1484.1

1093.2

976.6

1159.6

872.2

634.1

200.8

436.1

Frame banged going out. Clipped the net response going in.

Two bars left at top at surface.

9

4

23 April 06

1521

19° 49.227

19° 45.723

54° 43.585

54° 37.532

Net 0: 0000-1000

Net 1: 1000-0800

Net 2: 0800-0600

Net 3: 0600-0400

Net 4: 0400-0200

Net 5: 0200-0100

Net 6: 0100-0050

Net 7: 0050-0025

Net 8: 0025-0000

2655.6

363.1

1005.2

908.2

946.3

1230.3

1019.2

409.1

259.1

No net response with net 1 until 15 minutes later. Bar must have hung up and then dropped. Part of catch went into net 0 until bar dropped completely.

10

4

23 April 06

2152

19° 47.123

19° 49.426

54° 35.625

54° 28.627

Net 0: 0000-1000

Net 1: 1000-0800

Net 2: 0800-0595

Net 3: 0595-0400

Net 4: 0400-0200

Net 5: 0200-0100

Net 6: 0100-0050

Net 7: 0050-0025

Net 8: 0025-0000

4219.5

1189.9

927.7

852.1

989.3

892.9

479.7

269.6

326.7

11

5

25 April 06

0916

14° 00.174

14° 01.042

54° 59.976

54° 55.089

Net 0: 0000-1000

Net 1: 1000-0799

Net 2: 0799-0600

Net 3: 0600-0400

Net 4: 0400-0198

Net 5: 0198-0100

Net 6: 0100-0050

Net 7: 0050-0025

Net 8: 0025-0000

1801.2

922.4

839.2

944.6

1043.7

475.3

666.4

1125.2

216.3

Lots of water through net 7 at 25m because winch shut down due to burning smell in winch room.

12

5

25 April 06

1725

14° 02.499

14° 05.102

54° 53.482

54° 48.879

Net 0: 0000-1000

Net 1: 1000-0800

Net 2: 0800-0600

Net 3: 0600-0400

Net 4: 0400-0200

Net 5: 0200-0100

Net 6: 0100-0050

Net 7: 0050-0025

Net 8: 0025-0000

2093.2

1017.0

703.5

1189.4

1385.7

650.1

341.9

364.1

361.1

13

5

27 April 06

1216

14° 24.772

14° 25.119

53° 56.494

53° 52.530

Net 0: 0000-0547

Net 1: 0547-0527

Net 2: 0527-0516

Net 3: 0515-0496

Net 4: 0496-0488

Net 5: 0489-0477

Net 6: 0477-0473

Net 7: 0473-0464

Net 8: 0464-0461

2232.5

366.5

261.6

379.1

389.4

222.3

288.9

294.3

252.1

Special “Staircase” tow.

10-m MOCNESS Tows

1

1

14 April 06

15 April 06

1606

0745

33 38.552

33 40.243

-69 47.717

-69 13.418

Net 0: 0000-5000

Net 1: 5000-4000

Net 2: 4000-3000 (lost bucket)

Net 3: broken tab

Net 4: 3000-1000

66763.1

147296.9

71942.6

85192.9

69562.8

Net 2 lost codend. Net 3 closed at same time as net 2 due to broken tab. Net 3 contents only contaminants.

2

2

16 April 06

17 April 06

1529

0416

29 49.77

29 29.273

-70 14.292

-70 29.875

Net 0: 0000-4315

Net 1: 4315-3500?

Net 2: 3500-2750?

Net 3: 2750-2000?

Net 4: 2000-1000?

153129.9

34545.8

49126.7

37129.0

16365.3

Trouble with winch and ship-handling during descent of net 0. Long haul. Only net 1 true catch for depth. Others contaminated by gap.

3

3

19 April 06

20 April 06

2334

0925

24 50.385

24 47.482

-60 4.8107

-60 21.917

Net 0: 0000-5000

Net 1: 5000-4000

Net 2: 4000-3000

Net 3: broken tab - bucket lost

Net 4: 3000-1000

61591.1

28665.2

35051.2

44848.7

38979.5

Codend lost from net 3 but tab broke off and it didn’t fish anyway. Net 4 opened prematurely and fished more. Contamination issue apparently solved due to modifications to net system (flaps).

4

3

21 April 06

0028

1126

25 03.367

25 03.049

-60 37.536

-60 58.849

Net 0: 0000-5000

Net 1: 5000-4000

Net 2: 4000-3000

Net 3: 3000-2000

Net 4: 2000-1000

39640.7

38176.7

64340.60

49301.40

53127.6

5

4

23 April 06

0142

1256

20 00.03

19 49.387

-54 59.805

-54 44.379

Net 0: 0000-4500

Net 1: 4500-4000

Net 2: 4000-3000

Net 3: 3000-2000

Net 4: 2000-1000

64469.1

33551.2

55232.6

52965.2

55329.2

6

5

25 April 06

26 April 06

2156

1001

14 05.83

14 12.948

-54 46.800

-54 27.378

Net 0: 0000-5000

Net 1: 5000-4000

Net 2: 4000-3000

Net 3: 3000-2000

Net 4: 2000-1000

78111.6

70880.3

40927.9

44480.8

40588.7

Net 1 possibly opened early (1000m). Seems contaminated by shallow species. Net 2 has depth-appropriate fauna, but little of it. Net 3 has mesopelagic fauna.

7

5

26 April 06

27 April 06

1401

0338

14 16.930

14 20.497

-54 21.960

-53 57.916

Net 0: 0000-5000

Net 1: 5000-4000

Net 2: 4000-3000

Net 3: 3000-1000

Net 4: 1000-0000

92206.6

54074.1

55370.8

114403.5

62573.2

Contamination minimal. Catch spectacular. Net 4 fished more shallow than usual on purpose.

1/4-m MOCNESS Tows

1

1

13 April 06

1345

33° 37.270

33° 38.386

69° 51.803

69° 48.949

Net 0: 000-410

Net 1:

Net 2:

Net 3:

Net 4:

Net 5:

Net 6:

Net 7:

Net 8:

315.8

Oblique tow down and up. Battery died on underwater unit.

2

1

14 April 06

1329

33° 35.803

33° 33.748

69° 24.606

69° 29.379

Net 0: 000-500

Net 1: 500-350

Net 2: 350-200

Net 3: 200-150

Net 4: 150-100

Net 5: 100-075

Net 6: 075-050

Net 7: 050-025

Net 8: 025-000

380.5

544.0

361.3

160.6

141.0

46.7

49.5

49.8

71.9

3

1

14 April 06

2342

33° 34.251

33° 33.144

69° 38.859

69° 38.968

Net 0: 000-290

Net 1:

Net 2:

Net 3:

Net 4:

Net 5:

Net 6:

Net 7:

Net 8:

653.5

Lost signal with underwater unit. Aborted tow.

4

2

15 April 06

1756

29° 59.994

29° 59.270

69° 59.92

69° 59.12

Net 0: 000-249

Net 1:

Net 2:

Net 3:

Net 4:

Net 5:

Net 6:

Net 7:

Net 8:

186.9

Underwater unit stopped working. Used catch as ‘live’ tow.

5

5

26 April 06

1027

14° 13.542

14° 15.430

54° 26.688

54° 24.227

Net 0: 000-500

Net 1: 500-300

Net 2: 350-200

Net 3: 200-150

Net 4: 150-100

Net 5: 100-075

Net 6: 075-050

Net 7: 050-025

Net 8: 025-000

852.8

359.0

157.7

ng

ng

ng

ng

ng

ng

Flow meter stopped working at 197m depth. Catch is good, but don’t know volume filtered.

6

5

27 April 06

0612

14° 23.793

14° 28.635

53° 56.63

53° 55.039

Net 0: 000-350

Net 1: 350-230

Net 2: 230-170

Net 3: 170-150

Net 4: 150-120

Net 5: 120-110

Net 6: 110-090

Net 7: 090-070

Net 8: 070-000

668.4

152.6

186.5

107.4

116.1

102.9

104.2

100.0

139.5

Not much in nets. “Microbial paradise invisible to the naked eye.”