Plodnost a vývin oocytů v průběhu roku u ouklejky, Alburnoides bipunctatus

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F06%3A00076271" target="_blank" >RIV/68081766:_____/06:00076271 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Fecundity and annual course of maturation in spirlin, Alburnoides bipunctatus

Popis výsledku v původním jazyce

A total of 79 females of spirlin Alburnoides bipunctatus from the Rudava stream were examined to obtain data on fecundity and annual oocyte development cycle. Within spawning season the reproduction resources seemed to be allocated in its former half more intensively. For the mean SL=76 mm and eviscerated body weight = 7.2 g, mean absolute fecundity of females in pre-spawning phase (n=13) was 3020 eggs (SD=923; 2695 yolked eggs, SD=1054), and mean relative fecundity 430 eggs/g (SD=81; 373 yolked eggs, SD=100). Number of eggs in the right and the left ovary differed significantly in 63.3 % of females, with a maximum difference of 1405 eggs. Two clues, namely 1) no gap in distribution between immature, unyolked oocytes (present in an ovary throughout thewhole year), and yolked (vitellogenic) oocytes, 2) no increase in mean diameter of yolked oocytes towards the end of spawning season, suggest that spirlin is a species with indeterminate fecundity.

Název v anglickém jazyce

Fecundity and annual course of maturation in spirlin, Alburnoides bipunctatus

Popis výsledku anglicky

A total of 79 females of spirlin Alburnoides bipunctatus from the Rudava stream were examined to obtain data on fecundity and annual oocyte development cycle. Within spawning season the reproduction resources seemed to be allocated in its former half more intensively. For the mean SL=76 mm and eviscerated body weight = 7.2 g, mean absolute fecundity of females in pre-spawning phase (n=13) was 3020 eggs (SD=923; 2695 yolked eggs, SD=1054), and mean relative fecundity 430 eggs/g (SD=81; 373 yolked eggs, SD=100). Number of eggs in the right and the left ovary differed significantly in 63.3 % of females, with a maximum difference of 1405 eggs. Two clues, namely 1) no gap in distribution between immature, unyolked oocytes (present in an ovary throughout thewhole year), and yolked (vitellogenic) oocytes, 2) no increase in mean diameter of yolked oocytes towards the end of spawning season, suggest that spirlin is a species with indeterminate fecundity.

Druh

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

CEP obor

EG - Zoologie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

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

Název periodika

Folia zoologica

ISSN

0139-7893

e-ISSN

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Svazek periodika

55

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

12

Strana od-do

399-410

Kód UT WoS článku

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EID výsledku v databázi Scopus

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