Volume 6, Issue 1 (2017)
JFST 2017, 6(1): 119-126 |
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Moradinasab A, Ahmadi Fackjour H, Kamrani E, Sattari M, Ghasemi A, Tavakoli M et al . Study on Age, growth and sex ratio of Tench Tinca tinca (Linnaeus, 1758) in Anzali wetland. JFST 2017; 6 (1) :119-126
URL: http://jfst.modares.ac.ir/article-6-7501-en.html
URL: http://jfst.modares.ac.ir/article-6-7501-en.html
Amirali Moradinasab * 
1, Hojjat Ahmadi Fackjour2 , Ehsan Kamrani3 , Masoud Sattari4 , Ali Ghasemi5 , Mahmoud Tavakoli6 , Sarah Haghparast7
1, Hojjat Ahmadi Fackjour2 , Ehsan Kamrani3 , Masoud Sattari4 , Ali Ghasemi5 , Mahmoud Tavakoli6 , Sarah Haghparast7
1- Ph. D. student of Fisheries, Faculty of Marine Science and Technology, Hormozgan University, Bandar Abbas. Iran
2- Graduated M. Sc. of Fisheries, Islamic Azad University, Lahijan Branch, Lahijan, Iran.
3- Associate prof., Dept. of Fisheries, Faculty of Marine Sciences and Technologies, Hormozgan University, Bandar Abbas, Iran.
4- Associate prof., Dept. of Fishery, Faculty of Natural Resources, University of Guilan, Sowmeh Sara, Iran.
5- Graduated B. Sc. of Fisheries, Mirza Kouchak Khan Higher Education Fisheries Center, Rasht, Iran.
6- International Sturgeon Research Institute (Areeo), Rasht, Iran
7- Department of Fisheries, Faculty of Animal Sciences and Fisheries, Sari Agricultural Sciences and Natural Resources University, Sari, Iran.
2- Graduated M. Sc. of Fisheries, Islamic Azad University, Lahijan Branch, Lahijan, Iran.
3- Associate prof., Dept. of Fisheries, Faculty of Marine Sciences and Technologies, Hormozgan University, Bandar Abbas, Iran.
4- Associate prof., Dept. of Fishery, Faculty of Natural Resources, University of Guilan, Sowmeh Sara, Iran.
5- Graduated B. Sc. of Fisheries, Mirza Kouchak Khan Higher Education Fisheries Center, Rasht, Iran.
6- International Sturgeon Research Institute (Areeo), Rasht, Iran
7- Department of Fisheries, Faculty of Animal Sciences and Fisheries, Sari Agricultural Sciences and Natural Resources University, Sari, Iran.
Abstract: (8922 Views)
Growth, sex ratio and age of 188 specimens of Tench, Tinca tinca, from Anzali wetland were recorded during Nov. 2013 to June 2014. The age range of fish was 0+ to 6+ years. Male to female sex ratio was 1:1.7 that differed significantly (P<0.05). Maximum total length (TL) and weight (W) was 40.7 cm and 1000g, respectively. The b value of the length-weight relationship was 2.70 that showed negative allometric growth (p<0.05). The growth performance index (ϕ) was calculated as 2.61. The estimated von Bertalanffy growth parameters were (L∞= 47.48 cm, k= 0.18 yr- and t0= -1.07 yr). Tmaxwas calculated 16.41 years. Also infinity weight (W∞) was estimated as 1261.43 g. The present investigation provides basic information about population structure of Tench (T. tinca) in Anzali wetland.
Article Type: Short Communication Article |
Subject:
Biology and physiology
Received: 2014/09/23 | Published: 2017/05/22
Received: 2014/09/23 | Published: 2017/05/22
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