The efficacy of male's nest preparation and its effect on female's partner selection during semi-controlled reproduction in pikeperch (Sander lucioperca)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F23%3A43906205" target="_blank" >RIV/60076658:12520/23:43906205 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.aquaculture.2022.739100" target="_blank" >https://doi.org/10.1016/j.aquaculture.2022.739100</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.aquaculture.2022.739100" target="_blank" >10.1016/j.aquaculture.2022.739100</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The efficacy of male's nest preparation and its effect on female's partner selection during semi-controlled reproduction in pikeperch (Sander lucioperca)

Popis výsledku v původním jazyce

This study evaluated partner selection in pikeperch (Sander lucioperca) during seasonal nest spawning and its effect on reproduction efficiency. The experimental setup was based on the ability of the female to select pikeperch males of two sizes. After spawning, both empty and selected nests were photographed to evaluate male cleaning efficiency and egg distribution on the selected nests. After the completion of spawning, blood samples from all fish were taken to determine estradiol (females), testosterone, and 11-keto-testosterone (males) levels in blood plasma. The experiment lasted 24 days, during which 12 spawning events were recorded. Pikeperch fe-males preferred a bigger male in 77% of recorded spawning events, as they have expressed more consistent cleaning efforts towards the spawning nest. All preferred males without the effect of their size exhibited better cleaning efforts towards the nest compared to non-preferred fish. It could be suggested that pikeperch females preferred males expressing better nest preparation. The parameters of egg distribution, egg clustering, and larvae production were not influenced by the male size, testosterone, 11-keto-testosterone, and estradiol levels in blood plasma. It indicates the importance of female partner selection in pikeperch for consistent reproduction output of formed spawning pairs. The present study has confirmed the variability of cleaning efforts within different sizes of males and the effective selective behaviour of females during natural reproduction.

Název v anglickém jazyce

The efficacy of male's nest preparation and its effect on female's partner selection during semi-controlled reproduction in pikeperch (Sander lucioperca)

Popis výsledku anglicky

This study evaluated partner selection in pikeperch (Sander lucioperca) during seasonal nest spawning and its effect on reproduction efficiency. The experimental setup was based on the ability of the female to select pikeperch males of two sizes. After spawning, both empty and selected nests were photographed to evaluate male cleaning efficiency and egg distribution on the selected nests. After the completion of spawning, blood samples from all fish were taken to determine estradiol (females), testosterone, and 11-keto-testosterone (males) levels in blood plasma. The experiment lasted 24 days, during which 12 spawning events were recorded. Pikeperch fe-males preferred a bigger male in 77% of recorded spawning events, as they have expressed more consistent cleaning efforts towards the spawning nest. All preferred males without the effect of their size exhibited better cleaning efforts towards the nest compared to non-preferred fish. It could be suggested that pikeperch females preferred males expressing better nest preparation. The parameters of egg distribution, egg clustering, and larvae production were not influenced by the male size, testosterone, 11-keto-testosterone, and estradiol levels in blood plasma. It indicates the importance of female partner selection in pikeperch for consistent reproduction output of formed spawning pairs. The present study has confirmed the variability of cleaning efforts within different sizes of males and the effective selective behaviour of females during natural reproduction.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10617 - Marine biology, freshwater biology, limnology

Projekt

<a href="/cs/project/QK22020144" target="_blank" >QK22020144: Druhová a technologická diverzifikace produkčního rybářství v ČR s cílem podpořit jeho efektivitu a konkurenceschopnost</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Aquaculture

ISSN

0044-8486

e-ISSN

1873-5622

Svazek periodika

565

Číslo periodika v rámci svazku

neuvedeno

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

—

Kód UT WoS článku

000935580900005

EID výsledku v databázi Scopus

2-s2.0-85142740628