alaa_fahmy

أ.د/علاء يسري مصطفي

Professor - Professor of invertebrates and marine toxins

Faculty of science

Address: Zoology Department -Faculty of Science

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Publications Which contain the keyword: Sex ratio

Reproductive Cycle, Gametogenesis and Embryonic Development of Nitia Teretiuscula (Bivalvia : Unionidae), from the River Nile at Sohag Governorate, Egypt

2018-09-26 20:30:00 Keywords Sex ratio, Nitia Teretiuscula | River Nil, Gametogenesis, Gametogene, Reproductive cycle, River Nile, Nitia teretiuscula,
Reproductive Cycle, Gametogenesis and Embryonic Development of Nitia Teretiuscula (Bivalvia : Unionidae), from the River Nile at Sohag Governorate, Egypt
The present study dealt with the description of the reproductive and gametogenic cycles and the embryonic development of the freshwater mussel Nitia teretiuscula from the River Nile. Macro and micro-anatomy showed that the present species is dioceous and gonadosomatic indices showed that the species is semiannual and had two gonadal growth periods, a short period of gonadal growth from January ... Read more

REPRODUCTIVE CYCLE, GAMETOGENESIS AND EMBRYONIC DEVELOPMENT OF NITIA TERETIUSCULA (BIVALIVA: UNIONIDAE), FROM THE RIVER NILE, AT SOHAG GOVERNORATE, EGYPT

2018-09-24 08:25:26 Keywords Nitia teretiuscula, Embryonic development, Gametogenesis, Reproductive cycle, Sex ratio, River Nile,
REPRODUCTIVE CYCLE, GAMETOGENESIS AND EMBRYONIC DEVELOPMENT OF NITIA TERETIUSCULA (BIVALIVA: UNIONIDAE), FROM THE RIVER NILE, AT SOHAG GOVERNORATE, EGYPT
The present study dealt with the description of the reproductive and gametogenic cycles and the embryonic development of the freshwater mussel Nitia teretiuscula from the River Nile. Macro and micro-anatomy showed that the present species is dioceous and gonadosomatic indices showed that the species is semiannual and had two gonadal growth periods, a short period of gonadal growth from January ... Read more

Sex ratios and seasonal changes in density of four ostracod species in relation to some ecological variables, Red Sea, Egypt

2018-09-28 14:24:42 Keywords ostracods, Sex ratio, ecologicalfactors,
Sex ratios and seasonal changes in density of four ostracod species in relation to some ecological variables, Red Sea, Egypt
- Ebtesam, A. Y. (2014): Sex ratios and seasonal changes in density of four ostracod species in relation to some ecological variables, Red Sea, Egypt. The Egyptian Journal of .Aquatic Research. 40: 425-433 Read more

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