Smooth Bottom Net Trawl Fishing Gear Effect on - New England ...
Smooth Bottom Net Trawl Fishing Gear Effect on - New England ...
Smooth Bottom Net Trawl Fishing Gear Effect on - New England ...
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<str<strong>on</strong>g>Trawl</str<strong>on</strong>g><br />
Stati<strong>on</strong><br />
Results of 2002 REMOTS Surveys to Evaluate the <str<strong>on</strong>g>Effect</str<strong>on</strong>g>s<br />
of <str<strong>on</strong>g>Trawl</str<strong>on</strong>g>ing <strong>on</strong> Soft-<str<strong>on</strong>g>Bottom</str<strong>on</strong>g> Habitat in Massachusetts Bay<br />
Table 3.5-6.<br />
Summary of REMOTS Sediment-Profile Imaging Results for the<br />
Mud Hole <str<strong>on</strong>g>Trawl</str<strong>on</strong>g> Stati<strong>on</strong>s (top) and C<strong>on</strong>trol Stati<strong>on</strong>s (bottom), November 2002 Survey<br />
(Unless otherwise indicated, values in this table are means for n=3 replicate images at each stati<strong>on</strong>)<br />
Benthic Habitat<br />
(# replicates)<br />
Successi<strong>on</strong>al Stages<br />
Present (# replicates)<br />
RPD Mean<br />
(cm)<br />
1A 3 to 2 phi (3) 2.9 1.1 SA.F (3) ST I (3) 2.1 4.3<br />
1B 4 to 3 phi (3) 5.8 1.0 UN.SS (3) ST I (3) 2.4 4.3<br />
1C 4 to 3 phi (3) 7.7 0.9 UN.SI (1), UN.SS (2) ST I (1), ST I <strong>on</strong> III (2) 2.7 8.0<br />
3A 4 to 3 phi (3) 7.1 0.5 UN.SS (3) ST I (3) 2.9 5.7<br />
3B 4 to 3 phi (3) 6.8 0.6 UN.SI (1), UN.SS (2) ST I (2), ST I to II (1) 2.9 5.7<br />
3C 4 to 3 phi (3) 6.4 0.9 UN.SS (3) ST I (2), ST I <strong>on</strong> III (1) 2.3 6.0<br />
AVG 6.1 0.8 2.5 5.7<br />
MAX 7.7 1.1 2.9 8.0<br />
MIN 2.9 0.5 2.1 4.3<br />
C<strong>on</strong>trol<br />
Stati<strong>on</strong><br />
Grain Size Major<br />
Mode (# replicates)<br />
Camera<br />
Penetrati<strong>on</strong> Mean (cm)<br />
Boundary Roughness<br />
Mean (cm)<br />
2A 3 to 2 phi (1), 4 to 3 phi (2) 5.7 0.7 SA.F (1), UN.SS (2) ST I (3) 2.9 5.3<br />
2B 3 to 2 phi (1), 4 to 3 phi (2) 4.5 1.0 SA.F (1), UN.SS (2) ST I (3) 2.2 4.7<br />
2C 4 to 3 phi (3) 6.5 0.8 UN.SS (3) ST I (3) 2.3 4.7<br />
4A 4 to 3 phi (3) 8.3 1.0 UN.SS (3) ST I (2), ST I <strong>on</strong> III (1) 2.9 7.0<br />
4B 4 to 3 phi (3) 7.0 1.2 UN.SS (3) ST I (2), ST I <strong>on</strong> III (1) 2.6 6.0<br />
4C 4 to 3 phi (3) 7.9 0.8 UN.SS (3) ST I (2), ST I <strong>on</strong> III (1) 3.6 7.3<br />
AVG 6.6 0.9 2.7 5.8<br />
MAX 8.3 1.2 3.6 7.3<br />
MIN 4.5 0.7 2.2 4.7<br />
SAIC<br />
Grain Size Major<br />
Mode (# replicates)<br />
Camera<br />
Penetrati<strong>on</strong> Mean (cm)<br />
Boundary Roughness<br />
Mean (cm)<br />
Benthic Habitat<br />
(# replicates)<br />
Successi<strong>on</strong>al Stages<br />
Present (# replicates)<br />
RPD Mean<br />
(cm)<br />
OSI Mean<br />
OSI Mean