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Ontogenetic and interpopulation differences in otolith shape of the European perch (Perca fluviatilis)
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SYSNO ASEP 0538901 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Ontogenetic and interpopulation differences in otolith shape of the European perch (Perca fluviatilis) Author(s) Souza, Allan T. (BC-A) RID, ORCID
Soukalová, Kateřina (BC-A)
Děd, Vilém (BC-A)
Šmejkal, Marek (BC-A) RID, ORCID
Blabolil, Petr (BC-A) RID, ORCID
Říha, Milan (BC-A) RID, ORCID
Jůza, Tomáš (BC-A) RID, ORCID
Vašek, Mojmír (BC-A) RID, ORCID
Čech, Martin (BC-A) RID, ORCID
Peterka, Jiří (BC-A) RID, ORCID
Vejřík, Lukáš (BC-A) RID, ORCID
Vejříková, Ivana (BC-A) RID, ORCID
Tušer, Michal (BC-A) RID, ORCID
Muška, Milan (BC-A) RID, ORCID
Holubová, Michaela (BC-A) RID, ORCID
Boukal, D.S. (CZ)
Kubečka, Jan (BC-A) RID, ORCIDNumber of authors 17 Article number 105673 Source Title Fisheries Research. - : Elsevier - ISSN 0165-7836
Roč. 230, č. 6 (2020), s. 1-9Number of pages 9 s. Language eng - English Country NL - Netherlands Keywords Growth ; Diet shift ; Geometric morphometrics ; Morphometry ; Sagitta Subject RIV GL - Fishing OECD category Fishery R&D Projects EF16_025/0007417 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support BC-A - RVO:60077344 UT WOS 000553385900041 EID SCOPUS 85086996972 DOI 10.1016/j.fishres.2020.105673 Annotation Fish otoliths are conservative structures that are widely used on fishery science for multiple purposes. Despite its relevance in the research field, little is known about the ontogeny and inter-population effects on the otolith of freshwater fish. In this study we used otoliths from 1800 European perch (Perca fluviatilis) individuals from 9 different populations to analyze the ontogenetic and inter-population differences on the otolith shape using six morphometric indices. The relationship between fish and otolith length was fitted using three different regression models (linear, power and logistic) to identify the best allometric relationship. Our results show that there are strong ontogenetic and interpopulation differences in P. fluviatilis otolith shapes. We also show that the relationship between the fish and otolith length follows a logistic curve. The ontogenetic differences on otolith shape might be related to extrinsic factors (diet shift and intra and interspecific competition) in each ecosystem, given that the reservoirs are different and no clear pattern on the otolith shapes can be distinguished among populations. Our results imply that the available back-calculation models may not always provide accurate estimates of P. fluviatilis length and that a model that takes into account the real allometric relationship for the species can improve the fish length estimations of back-calculated fish lengths for the European perch. Workplace Biology Centre (since 2006) Contact Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Year of Publishing 2021 Electronic address https://doi.org/10.1016/j.fishres.2020.105673
Number of the records: 1