نتایج جستجو برای: mature gonads
تعداد نتایج: 71376 فیلتر نتایج به سال:
The sea urchin Tripneustes gratilla is a major grazer and is, hence, an excellent key model organism to study gain better understanding of responses changes in its habitat. We investigated whether there are significant variations the feeding reproductive phenotypic traits populations from three seagrass bed sites, with respect their proximity fish farms Bolinao, northwestern Philippines. establ...
Chalcalburnus mossulensis from the cyprinidae family is one of the indigenous fish in Gheshlagh Lake of Kordestan, Iran. Ligula intestinalis is one of the infective parasites among various species of fish and causes gonads atrophy. In this study, after detection of species and age of samples, the effects of this parasite on gonads tissues and sexual maturation of Chalcalburnus mossulensis were ...
To describe the morphological and histological changes during the annual reproductive cycle of the gonads of Cyprinion tenuiradius, a total of 341 specimens (102 female and 235 male specimens) were collected monthly from the Rudbal River (in the Qarah Aghaj sub-basin, the Persian Gulf basin), Firuzabad, Fars Province, southern Iran. The randomly sampling was adequate to collect males and female...
since sturgeons have no external sexual dimorphism and there are no external markers to determine sex, internal examination of the gonads should be used to sex identification. the present study describes the biopsy method and histological observations of the gonads of great sturgeon (huso huso) in both sexes at different age classes. sex and maturity stages of 226 great sturgeons were identifie...
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