Characteristics of biological influence on the growth and feed index of the sand smelt fish (Atherina boyeri Risso, 1810) on the southeast coast of the Caspian Sea

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TAGHAVI H.; AMRI SAHEBI A.; FAZLI H.

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Journal: Journal of Animal Research Year:2016 | Volume:29 | Issue:3 Page(s): 279-291

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Title

Characteristics of biological influence on the growth and feed index of the sand smelt fish (Atherina boyeri Risso, 1810) on the southeast coast of the Caspian Sea

Author(s)

TAGHAVI H. | AMRI SAHEBI A. | FAZLI H. | Issue Writer Certificate

Keywords

The sand smelt of fishQ1

Southeast coast of the Caspian SeaQ1

AgeQ2

SexualityQ2

Growth and Food parametersQ1

Abstract

Objective of the present study examines some biological characteristics of the sand smelt in the Age=1&sort=1&ftyp=all&fgrp=all&fyrs=all" target="_blank">Southeast coast of the Caspian Sea (between of Gohar Baran and Neka power house) in Mazandaran province. Accordingly, some of the biological characteristics such as Age, sex, growth and nutritional parameters were studied. The mean (± SD) total length and weight were 8. 48± 1. 21 cm and 3. 81± 1. 48 kg, respectively. There is a significant correlation between them (P<0. 001). The length and weight of relationship (exponential regression) with equation W= 0. 008 TL2. 866, negative growth pattern is show for fish in the area. Van bertalanffy growth equation was determined Lt=13. 47[1-e-0. 27(t+1. 61)] for the entire fishes. The sex ratio was between of male to female 1: 1. 85, Statistically significant differences were observed in them (X2 =20. 61; P<0. 001). Increase with Age the rate of decreased gonad sexual index (GSI) and curved top has been accessed in the month of March. Increase with Age the rate of decreased Condition Factor (CF) and curved top has been accessed in the month of May. Between the nutritional parameters of index were studied, the relative length of gastrointestinal of index (RLG), the void stomach of index (VI) and intensity of food (IF). Accordingly, RLG index with a mean (± SD) 0. 46± 0. 06 is indicative of a carnivore, VI of index with 45 percent of the stomach is empty, indicating is condition relatively polyphagous and middlephagous and also IF of index with a mean (± SD) 535± 221. 21 showing optimum limit fish food for the area.

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APA: Copy

TAGHAVI, H., AMRI SAHEBI, A., & FAZLI, H.. (2016). Characteristics of biological influence on the growth and feed index of the sand smelt fish (Atherina boyeri Risso, 1810) on the southeast coast of the Caspian Sea. JOURNAL OF ANIMAL RESEARCH (IRANIAN JOURNAL OF BIOLOGY), 29(3 ), 279-291. SID. https://sid.ir/paper/248747/en

Vancouver: Copy

TAGHAVI H., AMRI SAHEBI A., FAZLI H.. Characteristics of biological influence on the growth and feed index of the sand smelt fish (Atherina boyeri Risso, 1810) on the southeast coast of the Caspian Sea. JOURNAL OF ANIMAL RESEARCH (IRANIAN JOURNAL OF BIOLOGY)[Internet]. 2016;29(3 ):279-291. Available from: https://sid.ir/paper/248747/en

IEEE: Copy

H. TAGHAVI, A. AMRI SAHEBI, and H. FAZLI, “Characteristics of biological influence on the growth and feed index of the sand smelt fish (Atherina boyeri Risso, 1810) on the southeast coast of the Caspian Sea,” JOURNAL OF ANIMAL RESEARCH (IRANIAN JOURNAL OF BIOLOGY), vol. 29, no. 3 , pp. 279–291, 2016, [Online]. Available: https://sid.ir/paper/248747/en

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