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Stock Assessment of Three Cyprinid Fishes Along the Potamon Zone of Thamirabarani River, Eastern Slope of Western Ghats, South India

Stock Assessment of Three Cyprinid Fishes Along the Potamon Zone of Thamirabarani River, Eastern Slope of Western Ghats, South India

Durairaja Ramulu1*, Jawahar Paulraj2, Jayakumar Natarajan1, Sudhan Chandran1 Sudhir Kumar Das3, Suresh Eswaran4, Santhakumar Rajagopal5 and Padmavathy Pandurangan6

1Department of Fisheries Biology and Resource Management, TNJFU- Fisheries College and Research Institute, Tamil Nadu Dr. J. Jayalalithaa Fisheries University, Thoothukudi, 628008
2Tamil Nadu Dr. J. Jayalalithaa Fisheries University, Nagapattinam, 611002
3Department of Fisheries Resource Management, Faculty of Fishery Sciences, West Bengal University of Animal and Fishery sciences, Chak Garia, Kolkata, 700094
4Institute of Fisheries Post Graduate Studies, Tamil Nadu Dr. J. Jayalalithaa Fisheries University, Vaniyanchavadi, Chennai, 603103 
5TNJFU- Fisheries College and Research Institute, Tamil Nadu Dr. J. Jayalalithaa Fisheries University, Thoothukudi, 628008 
6Department of Aquatic Environment Management, TNJFU- Fisheries College and Research Institute, Tamil Nadu Dr. J. Jayalalithaa Fisheries University, Thoothukudi, 628008
 
* Corresponding author: durairaja@tnfu.ac.in

Fig. 1.
Map showing study area along the potamon zone of Thamirabarani River in Tirunelveli and Thoothukudi districts. 1, Cheranmahadevi; 2, Vannarpettai; 3, Murappanadu; 4, Karungulam; 5, Srivaikuntam; 6, Eral and 7, Authoor.
Fig. 2.

Length weight relationship of Cirrhinus mrigala (A), Dawkinsia filamentosa (B) and Labeo rohita (C).

Fig. 3.

Length  converted catch curve of Cirrhinus mrigala (A), Dawkinsia filamentosa (B) and Labeo rohita (C).

Fig. 4.

The calculated CPUE.

Fig. 5.
Month-wise fish catch details.
Fig. 6.

Gear-wise fish catch composition.

Pakistan Journal of Zoology

April

Pakistan J. Zool., Vol. 56, Iss. 2, pp. 503-1000

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