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When is enough, enough? Quantifying trade-offs between information quality and sampling effort for fishing gear selectivity data

Permanent lenke
https://hdl.handle.net/10037/13964
DOI
https://doi.org/10.1371/journal.pone.0199655
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article.pdf (5.006Mb)
Publisher's version (PDF)
Dato
2018-06-21
Type
Journal article
Tidsskriftartikkel
Peer reviewed

Forfatter
Veiga-Malta, Tiago; Feekings, Jordan; Herrmann, Bent; Krag, Ludvig Ahm
Sammendrag
There is general pressure throughout the world’s fisheries for the industry to have greater involvement not only in the development of fishing gears but also in the testing and documentation of their effect. In the European Union, the Common Fisheries Policy of 2013, together with the proposed reform of the technical measures regulation, highlights the need for greater flexibility in fisheries through increased stakeholder involvement. To achieve this flexibility, there is a need for additional fishing gears available to the fishermen. A way to facilitate this is to have the industry take part in the development and testing of fishing gears, as well as collect data on their performance. However, to have a successful industry-collected data programme, fishermen have to be able to collect data on the length of a portion of the catch. In this study, we determine how many individuals need to be measured to correctly evaluate the relative selective performance of a new gear compared to a standard gear. The evaluation was carried out by analysing catch ratio curves, their associated uncertainties, and the trade-offs between uncertainties and sampling effort. Results show that with relatively small sample sizes (500 to 1000 individuals) it is possible to correctly evaluate the performance of a gear for a given species. By having the industry develop and test their own gears, as well as being involved in the collection of data, the number of potential gear solutions available to address the different issues emerging in the fisheries is increased.
Beskrivelse
The following article, Veiga-Malta, T., Feekings, J., Herrmann, B. & Krag, L.A. (2018). When is enough, enough? Quantifying trade-offs between information quality and sampling effort for fishing gear selectivity data. PLoS ONE, 13(6), e0199655. https://doi.org/10.1371/journal.pone.0199655, can be retrieved at https://doi.org/10.1371/journal.pone.0199655.
Forlag
Public Library of Science
Sitering
Veiga-Malta, T., Feekings, J., Herrmann, B. & Krag, L.A. (2018). When is enough, enough? Quantifying trade-offs between information quality and sampling effort for fishing gear selectivity data. PLoS ONE, 13(6), e0199655. https://doi.org/10.1371/journal.pone.0199655
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