EGG INCUBATION IN THE NOBLE CRAYFISH (ASTACUS ASTACUS L.): THE EFFECT OF CONTROLLED LABORATORY AND OUTDOOR AMBIENT CONDITION ON HATCHING SUCCESS, GROWTH AND SURVIVAL RATE OF JUVENILES
نویسندگان
چکیده
منابع مشابه
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چکیده ندارد.
15 صفحه اولLunar-Rhythmic Molting in Laboratory Populations of the Noble Crayfish Astacus astacus (Crustacea, Astacidea): An Experimental Analysis
Juvenile noble crayfish, Astacusastacus (Crustacea, Astacidea) in the second year of age were kept in the laboratory for a twelve-month period under continuing "summer conditions" (LD 16:8, 19°C). Molting processes in this population could be synchronized by artificial moonlight cycles. Peaks of exuviations occurred at "new moons". Males showed a slightly higher degree of synchronization than f...
متن کاملEffect of lactic acid bacteria and the potential probiotic Hafnia alvei on growth and survival rates of narrow clawed crayfish (Astacus leptodactylus Esch., 1823) stage II juveniles
The aim of this study was to screen potential probiotic bacteria against Aeromonas hydrophila and determine the effects of antagonistic bacteria and a commercial product containing lactic acid bacteria on the survival and growth of stage II Astacus leptodactylus juveniles. For this purpose, a total of 110 bacterial strains were isolated from adult, stage II crayfish juveniles and rearing water ...
متن کاملthe effect of efl teachers beliefs about teaching reading strategies on their students success and motivation in reading comprehension
previous studies regarding teachers’ beliefs have revealed that teachers’ beliefs have influence on their classroom practices. the current study aimed to investigate the effect of teachers’ beliefs about teaching reading strategies on students’ motivation and success in reading comprehension in the context of english teaching as a foreign language in high schools of mazandaran, iran. data were ...
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ژورنال
عنوان ژورنال: Bulletin Français de la Pêche et de la Pisciculture
سال: 2004
ISSN: 0767-2861
DOI: 10.1051/kmae:2004014