Use of biodegradable materials to reduce marine plastic pollution in small scale coastal longline fisheries
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https://hdl.handle.net/10037/30084Date
2023-06-14Type
Journal articleTidsskriftartikkel
Peer reviewed
Author
Cerbule, Kristine; Herrmann, Bent; Trumbić, Željka; Petrić, Mirela; Šifner, Svjetlana Krstulović; Grimaldo, Eduardo; Larsen, Roger B.; Brčić, JureAbstract
Pollution from lost, abandoned, or discarded fishing gear is recognized as a global nature conservation concern.
Longlining with hooks is a commonly applied fishing method in fisheries around the world. The longline gear
consists of a mainline with a number of baited hooks that are attached to it by thinner twine (snoods) which are
often made of plastic material such as polyamide (nylon) or polyester that degrades very slowly in the marine
environment. During longline fishing, some of the snoods are lost at sea contributing to marine macro- and
micro-plastic pollution. The extent of the snood loss is often unknown and can vary between different longline
fisheries and fishing grounds. In this study, we estimated and compared the risk for the biodegradable and nylon
snood loss in an Adriatic small scale longline fishery. Further, we compared the catch composition and estimated
catch efficiency between biodegradable and nylon snoods for capture of common pandora (Pagellus erythrinus),
two-banded seabream (Diplodus vulgaris) and axillary seabream (Pagellus acarne). The risk for nylon snood loss in
this longline fishery (3 % for each snood for each deployment), demonstrate that the use of more environmentally friendly materials is necessary for nature conservation. No significant differences between the performance of the two materials regarding snood loss rate, hook loss rate, catch efficiency and catch composition
were found during short-term usage in the fishery. Based on these results, future long-term testing is encouraged
to investigate whether this promising performance of the biodegradable snood material is persistent over longer
fishing periods.
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, Trumbić, Petrić, Šifner, Grimaldo, Larsen, Brčić. Use of biodegradable materials to reduce marine plastic pollution in small scale coastal longline fisheries. Journal for Nature Conservation. 2023;74Metadata
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