Plodnost, doba vývoje vajíček a produkce juvenilů u raka pruhovaného (Orconectes limosus) v kontrolovaných podmínkách

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12610%2F06%3A00006954" target="_blank" >RIV/60076658:12610/06:00006954 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60076658:12520/06:00006954

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The fecundity, time of egg development and juveniles production in spiny-cheek crayfish (Orconectes limosus) under controlled conditions

Popis výsledku v původním jazyce

We comprehensively describe the fecundity and time of embryonic development of the spiny-cheek crayfish (Orconectes limosus). A linear relationship between the female size and ovarian and pleopodal fecundity and production of juveniles at the 3rd stage in spiny-cheek crayfish fecundity was confirmed. The mean value of the ovarian fecundity was found to be 130.8#107.6 (46-505) oocytes. The value of the female gonadosomatic index just before laying was 4.2#1.8% (0.8-7.7%). Pleopodal fecundity reached 217.8#94.9 (95-492) eggs of a mean diameter 1.8#0.2 mm (1.45-2.15 mm). Statistically significant difference was found between the egg numbers carried on individual pairs of pleopods. Mean time from laying to hatching was 46#3.8 days (37-56 days), i.e. 647#39.9 CTU (Celsius Temperature Units = degrees Celsius x days). Mean production of juveniles at the 3rd stage was found to be 135.7#67.24 (15-243) juveniles. The study shows that the spiny-cheek crayfish has higher fecundity and shorter deve

Název v anglickém jazyce

The fecundity, time of egg development and juveniles production in spiny-cheek crayfish (Orconectes limosus) under controlled conditions

Popis výsledku anglicky

We comprehensively describe the fecundity and time of embryonic development of the spiny-cheek crayfish (Orconectes limosus). A linear relationship between the female size and ovarian and pleopodal fecundity and production of juveniles at the 3rd stage in spiny-cheek crayfish fecundity was confirmed. The mean value of the ovarian fecundity was found to be 130.8#107.6 (46-505) oocytes. The value of the female gonadosomatic index just before laying was 4.2#1.8% (0.8-7.7%). Pleopodal fecundity reached 217.8#94.9 (95-492) eggs of a mean diameter 1.8#0.2 mm (1.45-2.15 mm). Statistically significant difference was found between the egg numbers carried on individual pairs of pleopods. Mean time from laying to hatching was 46#3.8 days (37-56 days), i.e. 647#39.9 CTU (Celsius Temperature Units = degrees Celsius x days). Mean production of juveniles at the 3rd stage was found to be 135.7#67.24 (15-243) juveniles. The study shows that the spiny-cheek crayfish has higher fecundity and shorter deve

Druh

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

CEP obor

EG - Zoologie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2006

Kód důvěrnosti údajů

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

Název periodika

Bulletin Francais de la Peche et de la Pisciculture

ISSN

0767-2861

e-ISSN

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Svazek periodika

380-381

Číslo periodika v rámci svazku

x

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

13

Strana od-do

1171-1182

Kód UT WoS článku

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EID výsledku v databázi Scopus

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