Otolith shape variations between artificially stocked and autochthonous pikeperch (Sander lucioperca)

Souza, Allan T.; Soukalová, Kateřina; Děd, Vilém; Šmejkal, Marek; Ribeiro de Moraes, Karlos; Říha, Milan; Muška, Milan; Frouzová, Jaroslava; Kubečka, Jan

doi:https://dx.doi.org/10.1016/j.fishres.2020.105708

Number of the records: 1

Otolith shape variations between artificially stocked and autochthonous pikeperch (Sander lucioperca)

1.

SYSNO ASEP	0539291
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Otolith shape variations between artificially stocked and autochthonous pikeperch (Sander lucioperca)
Author(s)	Souza, Allan T. (BC-A)_{RID, ORCID} Soukalová, Kateřina (BC-A) Děd, Vilém (BC-A) Šmejkal, Marek (BC-A)_{RID, ORCID} Ribeiro de Moraes, Karlos (BC-A) Říha, Milan (BC-A)_{RID, ORCID} Muška, Milan (BC-A)_{RID, ORCID} Frouzová, Jaroslava (BC-A)_{RID, ORCID} Kubečka, Jan (BC-A)_{RID, ORCID}
Number of authors	9
Article number	105708
Source Title	Fisheries Research. - : Elsevier - ISSN 0165-7836 Roč. 231, č. 11 (2020), s. 1-9
Number of pages	9 s.
Language	eng - English
Country	NL - Netherlands
Keywords	fisheries ; fish ; freshwater ; morphometry ; stock discrimination
Subject RIV	GL - Fishing
OECD category	Fishery
R&D Projects	QK1920326 GA MZe - Ministry of Agriculture (MZe)
	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	000571380300014
EID SCOPUS	85089268033
DOI	10.1016/j.fishres.2020.105708
Annotation	Fish stocking is one of the most widespread and frequent management strategies in freshwater systems. However, the contribution of stocked fish to the population is seldom investigated, and hence the effectiveness of this strategy is virtually unknown for many populations. Understanding the contribution of stocked fish into the population is crucial because it allows the disentanglement of the confounding effects generated by allochthonous individuals into the estimation of survival and growth rates of the population. To discriminate between the allochthonous and autochthonous individuals in a population, the shape of sagittae otoliths from pikeperch (Sander lucioperca) where compared. Results indicated significant differences among stocked and non-stocked fish, with the former having smaller and wider sagittae otoliths than the latter. Our results suggest that this technique can be used to discriminate the natal origin of fish in a much faster and cheaper way than commonly used techniques.
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.2020.105708

Number of the records: 1