A sperm competition model for the European bitterling (Rhodeus amarus)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F13%3A00397413" target="_blank" >RIV/68081766:_____/13:00397413 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1163/1568539X-00003116" target="_blank" >http://dx.doi.org/10.1163/1568539X-00003116</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1163/1568539X-00003116" target="_blank" >10.1163/1568539X-00003116</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A sperm competition model for the European bitterling (Rhodeus amarus)

Popis výsledku v původním jazyce

Sperm competition occurs when the spermatozoa of one male coincide with those of another to fertilise the same eggs. In some taxa males perform multiple ejaculations, which may function in sperm competition or in maintaining a baseline density of spermatozoa in the female reproductive tract to ensure fertilisation, a process that has been termed "topping up". We investigated multiple ejaculations in the European bitterling (Rhodeus amarus), a freshwater fish that oviposits in freshwater mussels. We quantified spermatozoa in the mussel mantle cavity following ejaculation, and measured sperm motility parameters of males adopting different mating tactics. Following ejaculation spermatozoa density in the mussel increased linearly, peaked after 30 s, and then declined exponentially. Spermatozoa motility parameters did not differ between male mating tactics. We parameterised a model of sperm competition for R. amarus, which accurately predicted male fertilisation probability. We discuss thes

Název v anglickém jazyce

A sperm competition model for the European bitterling (Rhodeus amarus)

Popis výsledku anglicky

Sperm competition occurs when the spermatozoa of one male coincide with those of another to fertilise the same eggs. In some taxa males perform multiple ejaculations, which may function in sperm competition or in maintaining a baseline density of spermatozoa in the female reproductive tract to ensure fertilisation, a process that has been termed "topping up". We investigated multiple ejaculations in the European bitterling (Rhodeus amarus), a freshwater fish that oviposits in freshwater mussels. We quantified spermatozoa in the mussel mantle cavity following ejaculation, and measured sperm motility parameters of males adopting different mating tactics. Following ejaculation spermatozoa density in the mussel increased linearly, peaked after 30 s, and then declined exponentially. Spermatozoa motility parameters did not differ between male mating tactics. We parameterised a model of sperm competition for R. amarus, which accurately predicted male fertilisation probability. We discuss thes

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EG - Zoologie

OECD FORD obor

—

Projekt

<a href="/cs/project/GA206%2F09%2F1163" target="_blank" >GA206/09/1163: Personality, reprodukční strategie samců a role samic v pohlavním výběru: studie modelových druhů ryb</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Behaviour

ISSN

0005-7959

e-ISSN

—

Svazek periodika

150

Číslo periodika v rámci svazku

14

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

22

Strana od-do

1709-1730

Kód UT WoS článku

000325754100004

EID výsledku v databázi Scopus

—