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Iranian J. of Fisheries Science، جلد ۱۱، شماره ۳، صفحات ۵۹۰-۶۰۱
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عنوان انگلیسی Early development of the Amur sleeper (Perccottus glenii, Dybowski, 1877): a remarkable invasive species in Eurasia
چکیده انگلیسی مقاله  To investigate the ontogeny of Perccottus glenii, embryonic, larval and juvenile development of P. glenii were examined under captive condition. The fertilized eggs with numerous oil droplets were orange-pink in color, prolate spherical in shape and had average length of 3.32±0.14 mm and width of 1.24±0.04 mm. From fertilization to hatching, the ontogenesis of the fish spent more than 200 h, and the process of embryonic development was divided into 25 stages based on the morphological characteristics. The newly hatched larvae, with well-developed swim bladder and pectoral fins, measured 5.07±0.18mm in total length. Initial feeding occurred at day 2 after hatching (AH) and the complete absorption of yolk sphere was observed 3 days after hatching. At day 40 AH, scales and vertical pigment were found to be appear. Scales covered the entire body and all fins were well developed 70 days AH, at which time the juveniles reached the young stage with a total length (TL) of 24.74±4.28 mm. At day 140 AH, The fry with a TL of 29.57±4.65 mm, were morphologically similar to the adults except for size. 
کلیدواژه‌های انگلیسی مقاله Perccottus glenii,Early development,Invasive species
نویسندگان مقاله yi xin liu | yi xin liu


guang hai جین | guang hai jin


pei امین یانگ | pei min yang


جینگ wei li | jing wei li


zong yun hu | zong yun hu


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