Journal
FISHERIES MANAGEMENT AND ECOLOGY
Volume 20, Issue 2-3, Pages 187-200Publisher
WILEY
DOI: 10.1111/fme.12000
Keywords
catchability; diary; recreational fishing; sex-specific exploitation; starvation
Categories
Funding
- European FIFG
- State of M-V
- Adaptfish-Project through a grant within the Pact for Innovation and Research by the Leibniz-Community
- Federal Ministry of Education and Research within the project Besatzfisch
- Program for Social-Ecological Research [01UU0907]
- HIT Umwelt-und Naturschutz Stiftungs GmbH, Germany
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Angling catch records are frequently used to reveal fish population developments. It is therefore important to understand the determinants of angling catches. This study focused on angler-related, biotic and abiotic factors influencing catchability of Eurasian perch, Perca fluviatilis L. A multi-lake (21 lakes) study based on angling diaries collected in Mecklenburg-Vorpommern, Germany (2006/2007), found that angler-related factors such as fishing experience, species preference and bait/lure type had a large impact on perch catch rates. Additionally, environmental conditions (nutritional status and water transparency) affected either the size or the number of perch caught by anglers. Catch rates varied seasonally, which was confirmed by an experimental fishery on a gravel pit (2008). This portion of the study showed that altered food availabilities in the course of the year caused food limitation in perch, which in turn facilitated high catch rates and female-biased exploitation in autumn. It is concluded that both angler-related and abiotic factors interact affecting perch catch rates and size of perch captured in recreational angling.
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