Allometric growth pattern and morphological changes in Binni (Mesopotamichthys sharpeyi) during early ontogeny

Document Type : Original Article

Authors

1 Department of Fisheries, Natural Resources faculty, University of Tehran, Karaj, Iran.

2 Department of Fisheries, Faculty of Natural Resources and Environment, Behbahan Khatam Alanbia University of Technology, Behbahan, Iran.

Abstract

During the early developmental stages, fish undergo complex morphological changes that improve their physiological and behavioral conditions to survive. Binni (Mesopotamichthys sharpeyi) is of great importance for native fish farming due to its good growth, resistance to adverse environmental conditions and high economic value. Hence, the current study was conducted to study the morphological changes and allometric growth patterns this species during early developmental stages from hatching until 41 day afterwards. The result revealed that notochord inflexion is occurred at 4-5 dph and completed at 11 dph. The larvae were developed as a miniaturized from of the adult fish at 23 dph. The results of the allometric study of the body parts rations of M. sharpeyi is correlated with increasing the body length during early developmental stage, biological priorities and morphological changes which can be considered to provide its requirements based on the vital priorities.

Keywords

Aquaculture Sciences
Volume 7, Issue 1 - Serial Number 1
August 2019
Pages 103-109

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