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

NOAA/NMFS Unallied Science Project, Cooperative Agreement NA16FL2264 May 2005
<strong>Smooth</strong> <strong>Bottom</strong> <strong>Net</strong> <strong>Trawl</strong> <strong>Fishing</strong> <strong>Gear</strong> <strong>Effect</strong> on the Seabed:
Investigation of Temporal and Cumulative <strong>Effect</strong>s BKAM/CR
1. (7/29/02) 500 kHz side-scan at control and experimental trawl lanes at Mud Hole and
Little Tow.
2. (7/30/02) 15 minute video tows - 6 stations MH, 6 stations LT for a total of 12 drifts.
3. (7/31/02) Triplicate benthic grabs - 4 stations at MH and 4 stations at LT for a total
of 8 stations x 3 reps for a total of 24 samples.
4. (8/1/02) SPI (sediment profile imaging) 3 replicates taken at 12 benthic stations in
MH and LT (sampled in 2000) for a total of 24 stations sampled
5. (8/2/02) Fisheries survey trawling performed at MH-Lane1, MH-Lane 3, LT-Lane 1,
and LT-Lane 3
August/September First Round Impact <strong>Trawl</strong>ing
During the months of August and September - 12 days of impact trawling was conducted
along the experimental trawl lanes 1 and 3 at Mud Hole and Little Tow with the F/V
Yankee Rose
September/October First Post-Chronic <strong>Trawl</strong>ing Cruise (September 30 - October 10)
1. (9/30/02) 500 kHz side-scan at control and experimental trawl lanes at Mud Hole
and Little Tow
2. (9/30/02) Precision bathymetric survey at MH and LT
3. (10/2/03) 15 minute video tows at 6 stations in MH, 6 stations in LT for a total of
12 video drifts
4. (10/7/02) <strong>Trawl</strong>ing performed at MH-Lane 1, MH-Lane 3, LT-Lane 1, LT-Lane 3
5. (10/9/02) Triplicate benthic grabs at 4 stations in MH and 4 stations in LT for a
total of 8 stations and 24 samples
6. (10/10/02) SPI 3 reps at 12 benthic stations in MH and LT for a total of 24
stations
October/ November Second Round Impact <strong>Trawl</strong>ing
Six additional days of impact trawling with the F/V Yankee Rose for a cumulative total of
20 days of trawl impact on the experimental lanes (1 – baseline experimental July, 12
impact trawls Aug/Sept, 1-Oct post-trawl experimental, 6 impact trawls Oct/Nov)
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