Comparison of the efficiency and modes of capture of biodegradable versus nylon gillnets in the Northeast Atlantic cod (Gadus morhua) fishery
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https://hdl.handle.net/10037/26388Date
2022-04-01Type
Journal articleTidsskriftartikkel
Peer reviewed
Author
Cerbule, Kristine; Herrmann, Bent; Grimaldo, Eduardo; Larsen, Roger B.; Savina, Esther; Vollstad, JørgenAbstract
Modern gillnets are usually made of nylon with high breaking strength, suitable elasticity and durability making
them an efficient fishing gear. Lost, abandoned, or discarded gillnets at sea cause plastic pollution and can
continue capturing marine animals over long periods of time. Biodegradable materials are being developed to
replace nylon in gillnets. However, biodegradable gillnets have shown reduced catch efficiency compared to the
nylon gillnets which challenges their acceptance by the fishing sector. This study investigated catch efficiency
and modes of capture between biodegradable and nylon gillnets in commercial cod (Gadus morhua) fishery. On
average, new biodegradable gillnets caught 25% fewer cod compared to new nylon gillnets. The main capture
modes were by the gills and by the body in used and new biodegradable gillnets, respectively. Differences in
catch efficiency are related to specific modes of capture that may be related to differences in material properties.
Is part of
Cerbule, K. (2024). Use of biodegradable plastic materials in gillnet and longline fisheries. (Doctoral thesis). https://hdl.handle.net/10037/33443Publisher
ElsevierCitation
Cerbule, Herrmann, Grimaldo, Larsen, Savina, Vollstad. Comparison of the efficiency and modes of capture of biodegradable versus nylon gillnets in the Northeast Atlantic cod (Gadus morhua) fishery. Marine Pollution Bulletin. 2022;178:1-12Metadata
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