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Data-poor stock assessment of fish stocks co-exploited by commercial and recreational fisheries: Applications to pike Esox lucius in the western Baltic Sea

Van Gemert, Rob and Koemle, Dieter and Winkler, Helmut and Arlinghaus, Robert (2022). Data-poor stock assessment of fish stocks co-exploited by commercial and recreational fisheries: Applications to pike Esox lucius in the western Baltic Sea. Fisheries Management and Ecology. 29 , 16-28
[Research article]

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Abstract

Information on catch and effort of recreational angling in mixed-use fisheries (co-exploited by commercial and recreational fishers) is often scarce, preventing the application of data-rich stock assessments typically performed for industrialised commercial fisheries. This study shows how data-poor stock assessment methods developed for marine fisheries, particularly a model class labelled as "catch-only" models (COMs), offer a possible solution. As a case study, COMs are used to assess a northern pike Esox lucius L. stock around the German Baltic island of Rugen. Multiple COMs were fitted to a time series of total pike removals, and their outputs were used as explanatory variables in ensemble models. The stock was found to be fully exploited and currently declining. This study highlights the potential for using COMs to determine status of previously unassessed coastal and freshwater stocks facing recreational fishing pressure and demonstrates how incorporating recreational removals is crucial for achieving reliable insights into the status of mixed-use stocks.

Authors/Creators:Van Gemert, Rob and Koemle, Dieter and Winkler, Helmut and Arlinghaus, Robert
Title:Data-poor stock assessment of fish stocks co-exploited by commercial and recreational fisheries: Applications to pike Esox lucius in the western Baltic Sea
Series Name/Journal:Fisheries Management and Ecology
Year of publishing :2022
Volume:29
Page range:16-28
Number of Pages:13
Publisher:WILEY
ISSN:0969-997X
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution-Noncommercial-No Derivative Works 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Fish and Aquacultural Science
Keywords:catch-only models, coastal stocks, ensemble models, freshwater stocks, mixed-use fisheries, stock status
URN:NBN:urn:nbn:se:slu:epsilon-p-113763
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-113763
Additional ID:
Type of IDID
DOI10.1111/fme.12514
Web of Science (WoS)000697913200001
ID Code:26738
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Department of Aquatic Resources
Deposited By: SLUpub Connector
Deposited On:17 Jan 2022 13:25
Metadata Last Modified:17 Jan 2022 13:31

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