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International Journal of Aquatic Biology، جلد ۴، شماره ۴، صفحات ۲۹۵-۰
عنوان فارسی
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عنوان انگلیسی Histological and allometric growth analysis of eye in Caspian kutum, Rutilus kutum Kamensky, 1901 (Teleostei: Cyprinidae) during early developmental stages
چکیده انگلیسی مقاله Fish larvae have several sensory systems that are functional at or soon after hatching and then are developed further during larval and juvenile stages. This study was conducted to investigate development of the eye in Rutilus kutum , based on histological and allometric growth analysis during early developmental stages up to 35 day post hatching with emphasis on retinal morphology. For this purpose, the histological sections were prepared and allometric growth pattern of the eye was calculated. The results showed that the most eye’s structures along with the retina of the newly hatched larvae, as the inner sensory (photosensitive) tissue were completely differentiated. Allometric growth pattern of the eye diameter up to the inflexion point (7 dph) was somewhat positive and then it became negative. The results revealed that the Caspian kutum is dependence on visual capability as visual feeder during their larval period which itself explains completion of eye structures and the high growth rate of eye before 3 dph i.e. beginning of mixed feeding.
کلیدواژه‌های انگلیسی مقاله Vision, Retina, Ontogeny, Growth pattern.
نویسندگان مقاله شقایق حسن پور | shaghayegh hasanpour
department of fisheries, faculty of natural resources, university of tehran, iran.

سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

سهیل ایگدری | soheil eagderi
department of fisheries, faculty of natural resources, university of tehran, iran.

سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

سید ولی حسینی | seyed valli hosseini
department of fisheries, faculty of natural resources, university of tehran, iran.

سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

محمد حسن جعفری صیادی | mohamad hasan jafari sayadi
department of agriculture and natural resources, university of payam noor, karaj, iran.
نشانی اینترنتی http://npajournals.com/ijab/index.php/ijab/article/view/550
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زبان مقاله منتشر شده en
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