Trawl sampling of small pelagic species off Angola. Effects of avoidance, towing speed, tow duration and time of day

• Main Authors: Luyeye, Nkosi, Coetzee, Janet, Boyer, D., Misund, Ole Arve
• Format: Report
• Language: English
• Published: ICES 1997
• Subjects: trawl; trål; pelagic fish; pelagisk fisk; sampling; prøvetaking; stock assessment; bestandsberegning; VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Catch: 925; VDP::Mathematics and natural science: 400::Geosciences: 450::Oceanography: 452; VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fish health: 923; Fridtjof; Fridtjof Nansen
• Online Access: http://hdl.handle.net/11250/105769

A series of pelagic trawl sampling trials on pelagic species distributed near surface off Angola were conducted by R/V «Dr. Fridtjof Nansen» operating a medium sized pelagic trawl with a vertical opening of about 20 m. The results have been analysed with respect to effects such as vessel and gear av...