Smooth Bottom Net Trawl Fishing Gear Effect on - New England ...

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Table 3.3-4. Organisms observed per minute in the video-sled survey of Little Tow. July Experimental Little Tow Control October November July October November Fish Juvenile Macrozoarces americanus (ocean pout) - - 0.026±0.044 0.027±0.048 - - Macrozoarces americanus (ocean pout) 0.038±0.065 - 0.084±0.087 0.070±0.063 - 0.034±0.059 Juvenile Flounder 0.056±0.097 - - - - - Flounder 0.263±0.288 0.056±0.096 0.441±0.171 0.154±0.028 0.121±0.116 0.221±0.153 Juvenile Urophycis chuss (red hake) - - - - - 0.056±0.096 Urophycis chuss (red hake) 0.104±0.056 - 0.333±0.577 0.056±0.049 0.048±0.082 0.946±0.857 Juvenile Myoxocephalus spp. (sculpin) 0.043±0.038 - - 0.027±0.048 0.038±0.067 0.067±0.058 Myoxocephalus spp. (sculpin) 0.080±0.085 - 0.144±0.125 0.192±0.261 - 0.099±0.098 Merluccius bilinearis (silver hake) 0.157±0.183 - 0.029±0.050 0.194±0.264 0.038±0.067 - Hemitripterus americanus (sea raven) - - - - - - unidentified juvenile fish - 0.048±0.082 0.077±0.133 - 0.306±0.087 0.034±0.059 unidentified fish - - - - 0.048±0.082 - Lophius americanus (monkfish) - - - - - - Dogfish - - - - - - Sea Robin - - 0.029±0.050 - - - Skate - - - - - 0.056±0.096 Invertebrates Sea star 7.642±2.130 12.989±2.686 9.833±4.224 9.575±4.910 8.237±1.782 14.748±4.017 Cancer spp. (rock crab) 0.502±0.266 0.678±0.033 0.596±0.413 0.389±0.087 0.131±0.014 0.231±0.315 Placopecten magellanicus (sea scallop) 0.097±0.167 0.539±0.300 0.209±0.079 0.056±0.049 0.128±0.134 0.301±0.267 Myxicola infundibulum (slime worm) - - - - - - Solaster endeca (purple sunstar) - - - - - - Hermit crab - 0.087±0.151 0.026±0.044 - 0.286±0.495 0.056±0.096 Cerianthus borealis - - 0.026±0.044 - - - Corymorpha pendula (solitary hydroid) - - - - - - Echinarachnius parma (sand dollar) 0.038±0.065 - 0.638±1.104 0.081±0.141 1.286±2.227 0.444±0.770 Gastropod - - - - - - Urctinia felina (northern red anemone) - - - - - - Homarus americanus (american lobster) - - - - - - Crossaster papposus (spiny sunstar) - - 0.026±0.044 - - - Shrimp 6.412±4.271 6.098±4.388 0.080±0.077 7.009±4.543 18.082±4.622 - Sponge 0.024±0.042 1.143±1.979 0.564±0.977 - - - Henrica sanguinolenta (blood sea star) - - 0.026±0.044 - - - Asterius vulgaris (northern sea star) - 0.190±0.330 0.085±0.078 - 0.038±0.067 0.099±0.098 Hermit Crab - 0.087±0.151 - - - - Squid - - 0.033±0.058 - - - Hydroids - - 0.103±0.178 - - - Stalked Hydroid - - - - - - Brachiopod - - 0.026±0.044 - - -
Table 3.3-1. Cumulative Raw Counts from Video-Sled Footage Mud Hole Little Tow Total Minutes of video 201.42 150.15 351.57 Number Percent Number Percent Number Percent Fish Juvenile Macrozoarces americanus (ocean pout) 5 1.8 2 1.3 7 1.6 Macrozoarces americanus (ocean pout) 9 3.2 8 5.2 17 3.9 Juvenile Flounder 1 0.4 3 1.9 4 0.9 Flounder 76 27.3 41 26.6 117 27.1 Juvenile Urophycis chuss (red hake) 2 0.7 1 0.6 3 0.7 Urophycis chuss (red hake) 137 49.3 45 29.2 182 42.1 Juvenile Myoxocephalus spp. (sculpin) 1 0.4 6 3.9 7 1.6 Myoxocephalus spp. (sculpin) 8 2.9 17 11.0 25 5.8 Merluccius bilinearis (silver hake) 17 6.1 16 10.4 33 7.6 unidentified juvenile fish 21 7.6 12 7.8 33 7.6 unidentified fish - - 1 0.6 1 0.2 Sea Robin - - 1 0.6 1 0.2 Skate 1 0.4 1 0.6 2 0.5 Total Fish 278 154 432 Invertebrates Sea star 2018 71.4 1823 58.5 3841 64.7 Cancer spp. (rock crab) 95 3.4 78 2.5 173 2.9 Placopecten magellanicus (sea scallop) 15 0.5 36 1.2 51 0.9 Myxicola infundibulum (slime worm) 2 0.1 - - 2 0.0 Solaster endeca (purple sunstar) 1 0.0 - - 1 0.0 Hermit crab 1 0.0 10 0.3 11 0.2 Cerianthus borealis 2 0.1 1 0.0 3 0.1 Corymorpha pendula (solitary hydroid) 1 - - - 1 0.0 Echinarachnius parma (sand dollar) - - 61 2.0 61 1.0 Homarus americanus (american lobster) 1 0.0 - - 1 0.0 Crossaster papposus (spiny sunstar) - - 1 0.0 1 0.0 Shrimp 674 23.8 1037 33.3 1711 28.8 sponge - - 47 1.5 47 0.8 Henrica Sanguinolenta (Blood Star) 1 0.0 1 0.0 2 0.0 Asterius vulgaris (Northern Starfish) 7 0.2 11 0.4 18 0.3 Hermit Crab 2 0.1 2 0.1 4 0.1 Squid 6 0.2 1 0.0 7 0.1 Hydroids - - 4 0.1 4 0.1 Stalked Hydroid 1 0.0 - - 1 0.0 Brachiopod - - 1 0.0 1 0.0 Total Invertebrates 2827 3114 5941
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SMOOTH BOTTOM NET TRAWL FISHING GEA
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NOAA/NMFS Unallied Science Project,
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Page 34 and 35: NOAA/NMFS Unallied Science Project,
Page 76 and 77: effective if the process of immigra
Page 78 and 79: effort, the critical pulse disturba
Page 80 and 81: Maciolek, N.J., R.J. Diaz, D. Dahle
Page 82 and 83: Table 3.3-2. Organisms observed per
Page 86 and 87: Table 3.3-5. Comparison of 2001 ROV
Page 88 and 89: Station LT02-1B - P2 Trawl<
Page 90 and 91: Station LT02-3A Trawl</stro
Page 92 and 93: Station LT02-4A - P1 Control Lane O
Page 94 and 95: Trawl Station Resu
Page 100 and 101: Table 3.6-2 2002 Trawl</str
Page 102 and 103: Table 3.6-3 (continued) CRUSTACEA A
Page 106 and 107: Table 3.6-5 Summary of Blackback (W
Page 108: Table 3.6-5 (continued) OTHERS Sarc
Page 113 and 114: Table 3.6-7 Dominant Species in Sed
Page 115 and 116: FIGURES
Page 117 and 118: Figure 1.0-2. Smooth</stron
Page 119 and 120: Figure 1.0-4 Side-scan sonar base m
Page 121 and 122: Figure 3.2.1-2 Bathymetric surface
Page 123 and 124: Number/minute 4 3 2 1 0 July Octobe
Page 125 and 126: Number/minute Number/minute 4 3 4 2
Page 127 and 128: Number/minute Number/minute 30 20 1
Page 129 and 130: Number/minute Number/minute 2.5 2 1
Page 131 and 132: Number/minute Number/minute July -
Page 133 and 134: Figure 3.4-2 For key species, the a
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Figure 3.4-4 For key species, the a
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Figure 3.4-6: Cluster analysis of M
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Figure 3.4-9 Little Tow 2002 Cluste
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Figure 3.4-12a. Little Tow 2001 and
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Note: [LT02 = Little Tow 2002 sampl
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Results of 2002 REMOTS Surveys to E
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Kg/Tow 200 180 160 140 120 100 80 6
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Kg/1000m2 Kg/1000m2 7 6 5 4 3 2 1 0
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Kg per 1000m2 350 300 250 200 150 1
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Numbe of individuals Number of Indi
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Number of individuals Number of ind
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PHOTOGRAPHS
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Photograph 2.2-2 Christopher Dunbar
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a. Chris Dunbar sieving benthic sam
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Photograph 2.7-1 CR Environmental e
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a. Fisherman Andrew Mirarchi viewin
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2001 2002 Cobble Bottom</st
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MH-3A July 2002 Pre-Trawl</
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MH-4A July 2002- Pre-Trawl<
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LT-1B July 2002- Pre-Trawl<
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LT-3A July 2002- Pre-Trawl<
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LT-4A July 2002- Pre-Trawl<
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Cobble bottom at Little Tow Small r
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2001 2002 Flounder Rock Crabs Sea S
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