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Population Parameters and Exploitation Status of Clown Knifefish Notopterus chitala (Hamliton, 1822) from Indus River, Pakistan

Population Parameters and Exploitation Status of Clown Knifefish Notopterus chitala (Hamliton, 1822) from Indus River, Pakistan

Khadim Hussain Memon1,*, Amir Mahmood Memon2, Tahira Jabeen Ursani3, Abdul Manan Shaikh1 and Sapna Waheed Memon1

1Department of Zoology, Faculty of Natural Sciences, Shah Abdul Latif University, Khairpur, Sindh
2Fisheries Department, Government of Sindh, Karachi
3Department of Zoology, University of Sindh, Jamshoro
 
* Corresponding author: [email protected]

Fig. 1.

Location of sampling points of the Sukkur Barrage on the Indus River, Sindh, Pakistan.

Fig. 2.

Pooled length-weight relationship for Notopterus chitala (W= 0.0126 L2.896, R2= 0.984) from the catch on Indus River at Sukkur Barrage during the period October 2015 to March 2016.

Fig. 3.

Pooled length-frequency distributions for Notopterus chitala from the catch on Indus River at Sukkur Barrage during the period October 2015 to March 2016.

Fig. 4.

VBGF curves using the method of ELEFAN-I for Notopterus chitala at Sukkur Barrage.

Fig. 5.

The length converted catch curve model for the total mortality for pooled data of Notopterus chitala from the Sukkur Barrage on the Indus River during 2015-16.

Fig. 6.

Analysis of monthly estimation of total mortality using length converted catch curve method for Notopterus chitala from the Sukkur Barrage on the Indus River during 2015-16.

Fig. 7.

Length structured virtual population analysis (LVPA) for Notopterus chitala from the Sukkur Barrage on the Indus River during 2015-16.

Fig. 8.

Yield per recruit contour map for Notopterus chitala from the Sukkur Barrage on the Indus River during 2015-16.

Equation 1

Pakistan Journal of Zoology

December

Pakistan J. Zool., Vol. 56, Iss. 6, pp. 2501-3000

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