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Journal:   JOURNAL OF FISHERIES (IRANIAN JOURNAL OF NATURAL RESOURCES)   winter 2019 , Volume 71 , Number 4 ; Page(s) 361 To 373.
 
Paper: 

Morphological Changes And Larval Development In Sterlet Sturgeon (Acipenser Ruthenus)

 
 
Author(s):  Falahatkar Bahram*, Ostadi Masoumeh, Razzaghi Ghaziani Mehdi
 
* Fisheries Department, Faculty of Natural Resources, University of Guilan, Sowmeh Sara, Iran
 
Abstract: 
This study was carried out to find developing stages of Sterlet sturgeon (Acipenser ruthenus) during the daily sampling from hatching to 20 days post hatch (DPH). Samples were fixed in formaldehyde and measurements were carried out by a loop equipped with a micrometer. In this study, with increasing the age, all organs increased in sizes except in yolk sac volume which was decreased by increasing the age and absorbed in 10 DPH with mean total length (TL) of 19 mm. Melanin plug concentrated in last part of the digestive tract in 1 DPH larvae with mean TL of 8. 2 mm, and in 4 DPH with 12. 6 mm TL, started to excreted while in 7 DPH (16 mm TL) completely excreted with the opening of the anal. According to the results, for increasing the growth rate and resistance of larvae, it is recommended that to start the feeding of Sterlet sturgeon from 7 DPH.
 
Keyword(s): Sterlet,Larvae,Initial feeding,Morphometric,Growth
 
 
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APA: Copy

FALAHATKAR, B., & Ostadi, M., & Razzaghi Ghaziani, M. (2019). Morphological Changes and Larval Development in Sterlet Sturgeon (Acipenser ruthenus). JOURNAL OF FISHERIES (IRANIAN JOURNAL OF NATURAL RESOURCES), 71(4 ), 361-373. https://www.sid.ir/en/journal/ViewPaper.aspx?id=730544



Vancouver: Copy

FALAHATKAR BAHRAM, Ostadi Masoumeh, Razzaghi Ghaziani Mehdi. Morphological Changes and Larval Development in Sterlet Sturgeon (Acipenser ruthenus). JOURNAL OF FISHERIES (IRANIAN JOURNAL OF NATURAL RESOURCES). 2019 [cited 2022August14];71(4 ):361-373. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=730544



IEEE: Copy

FALAHATKAR, B., Ostadi, M., Razzaghi Ghaziani, M., 2019. Morphological Changes and Larval Development in Sterlet Sturgeon (Acipenser ruthenus). JOURNAL OF FISHERIES (IRANIAN JOURNAL OF NATURAL RESOURCES), [online] 71(4 ), pp.361-373. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=730544.



 
 
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