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گواهی نمایه سازی مقاله Determination of larval development stages in beluga (Huso huso Linnaeus, 1758)

عنوان مقاله: Determination of larval development stages in beluga (Huso huso Linnaeus, 1758)
شناسه (COI) مقاله: JR_AAJ-3-1_002
منتشر شده در ماهنامه پیشرفت های کشاورزی در سال ۱۳۹۲
مشخصات نویسندگان مقاله:

n Norouzi - M.Sc Student of Fishery Department of Gorgan University.
r Ghorbani - Assistant professor of Fishery Department of Guilan University.

خلاصه مقاله:
The study of egg and larvae stages tn fishes is one of new fields in Ichthyology. There are many changes in larvae stage and the study of fish bio-history can provide some information about the changes of this stage to us. In this study, the larvae development stages on 44 samples of Bluga larvae investigated based on the morphologicalobservations, the pigments scattering pattern and fins development patterns. From the viewpoint of pigments pattern, the highestpigments were concentrated on the rear of head and between eyes and the lowest was on fins bud, the tip of snout and under of lateralline of body. The morphological observations in larvae stage indicated that larvae in early stage has different shape than itspuberty and its appearance will change in pamllel to its development during the time, so that at the end of this stage it is so like an adult fish. In same performed researches on larvae of other sturgeon species, there are relative similarity based on pigment scattering pattern but there are significant differences in morphological observation and also the pattern of fins development.

کلمات کلیدی:
Huso huso ، ، Larval development ، Meristic Characteristics ، ، Morphometric variables ، ، Pigmentation pattern

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