WebApr 12, 2024 · A Multpelt trawl was applied for biological sampling. Two splits in the codend were made to protect the trawl and avoid large catches. Only target trawl hauls were carried out, i.e. on significant pelagic aggregations that were thought to be capelin. From every trawl haul, a maximum of 100 randomly selected capelin were sampled. WebJan 24, 2024 · The ICES survey protocol for offshore beam trawl surveys describes the current methodologies, stratification and sample processing used in the offshore beam trawl surveys that provide fisheries-independent information to the fish stock assessments for a variety of flatfish species.
Working Group on Beam Trawl Surveys (WGBEAM)
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1. A beam trawl with chain mat (left) and with tickler chains (right ...
Web2024/2024 Southeast Beam Trawl GHLs page 2 of 4 April 22, 2024 Table 2. Guideline harvest levels (GHLs) in pounds and spot and coonstripe shrimp bycatch limits in pounds by fishing area for the 2024/2024 beam trawl shrimp fishery in nontraditional areas of Southeast Alaska. GHL for season Nontraditional areas1 District 3 5 61 71 9 101 11 … WebApr 6, 2015 · The pulse trawl was deployed from a commercial beam trawler (FV “de Boeier”, SCH18), and had a beam width of 4.4 m (Figures 2 and 3 ). The overall weight in air was 2500 kg, of which ≥75% was due to the beam and shoes. The sole plates of the two trawl shoes were 0.34 m². chemistry 9th edition zumdahl answers