Industry-collaborative mesh trials to reduce bycatch in the Falkland Islands skate trawl fishery (Southwest Atlantic)

被引：4

作者：

Arkhipkin, Alexander ^{[1
]}

Skeljo, Frane ^{[1
]}

Wallace, James ^{[2
]}

Derbyshire, Cian ^{[1
,3
]}

Goyot, Ludovic ^{[1
,4
]}

Trevizan, Toni ^{[1
]}

Winter, Andreas ^{[1
]}

Pol, Michael ^{[1
]}

机构：

[1] Falkland Isl Govt, Fisheries Dept, Bypass Rd, Stanley FIQQ 1ZZ, Falkland Island

[2] Fortuna Ltd, 10 Boxer Bridge, Stanley FIQQ 1ZZ, Falkland Island

[3] 61 Arnold Pk, Glenageary A96 F2P7, Ireland

[4] 2 Rue St Francois, F-22220 Treguier, France

来源：

ICES JOURNAL OF MARINE SCIENCE | 2023年 / 80卷 / 03期

关键词：

bottom trawl; bycatch reduction; mesh size; skates; PATAGONIAN SHELF; SELECTIVITY; ASSEMBLAGE; SIZE;

D O I：

10.1093/icesjms/fsab259

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

The Falkland Islands conduct one of the few targeted skate fisheries in the world with total annual catches of several thousand tonnes. This bottom trawl fishery is characterized by relatively low catch volumes and product yield that challenge commercial profitability. Recently, one Falkland Islands fishing company acquired a large proportion of the skate ITQ, and to optimise its fishing operations, proposed a research collaboration with the Falkland Islands Fisheries Department for assessing the performance of trawls equipped with either standard 110 mm codend mesh, or larger 300 and 400 mm meshes. The results of the trial confirmed the efficiency of larger mesh codends to decrease finfish bycatch by 97-98%. Additionally, trawls with 400 mm mesh significantly decreased the bycatch of commercially valueless small skates that would experience high discard mortality. As a result of the trial, the Falkland Islands Government implemented a regulatory licence condition of 400 mm codend mesh for targeted skate fishing. Besides greater production efficiency, vessel operators are incentivized by possible wider access throughout the fishing zone. Further initiatives are anticipated to develop management measures by individual species, continue improving conservation through bycatch mitigation in all fisheries, and diversify Falklands skate products in global markets.

引用

页码：578 / 590

页数：13