GILLNET  SELECTIVITY  ON  CATLA  CATLA  (HAMILTON,  1822)  IN  ALIYAR  RESERVOIR,  TAMIL  NADU,  SOUTH  INDIA

B. Sundaramoorthy; P. Parivallal; N. Neethiselvan

doi:10.56093/ijvasr.v9i5.156715

Authors

B. Sundaramoorthy Department of Fishing Technology and Fishing Engineering, Fisheries college and Research Institute, Thoothukudi - 628008. India
P. Parivallal Department of Fishing Technology and Fishing Engineering, Fisheries college and Research Institute, Thoothukudi - 628 008. India
N. Neethiselvan Department of Fishing Technology and Fishing Engineering, Fisheries college and Research Institute, Thoothukudi - 628008. India

https://doi.org/10.56093/ijvasr.v9i5.156715

Keywords:

Gillnet selectivity, Catla catla, Reservoir fisheries and Selectivity parameters

Abstract

A study undertaken on the gillnet selectivity of Catla catla at Aliyar Reservoir revealed that the optimum mesh size for the commercial exploitation of this species is 13.7 cm. Among the gillnets presently being used, the usages of net A (mesh size 120 mm) is to be avoided to prevent the capture of immature and maturing animals. The net B (mesh size 140mm) and Net C (mesh size 160 mm) were not found to pose any threat to the fishery. The relationship between gilled girth(X) and fork length(Y) was found to be Y = 1.19 + 0.73 X. The technical status of the gillnets of Aliyar reservoir need to be improved through correct attachment of floats and sinkers to enhance the catch efficiency of the nets.

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References

Chakrabarti, N.M., (1998). Biology, Culture and Production of IMC – A review. Narendra Publishing House Delhi, India. 175p.

Geroge, V.C., R.M. Naidu and K.K. Kunjipaulu, 1973. Exploratory fishing experiments in Hirakud reservoir Orissa state (1967-70). Fishing

Technology X(1):71-78.

Kartha, K.N. and K.S. Rao, (1991). Selectivity of gill nets for Catla catla (Hamilton), Cirrhinus mrigala (Day) and Labeo rohita (Hamilton) in Gandhisagar reservoir. Fishing Technology, 28: 5-10.

Khan, A.A., N.A. George, and O.P. Pandey, (1975). On the fishing power of monofilament and multifilament gillnets. Fishing Technology,

(1):64-69.

Khan, A.A., N.A. George, T. J. Mathai and A.K.K. Nair, (1989). On the optimum mesh size for the capture of Barbus for (Hamilton). Fishing Technology, 26(2):92-99.

Kurian, G.K., 1973. Fishing gear in freshwater reservoirs of India. Fishing Technology, X(1):1-5

Nayar, S.G., M. Shahul Hameed and M.D. Varghese, 1969. “Experimental fishing in Gandisagar reservoir, Madhya Pradesh” paper presented at symposium ‘on ecology of reservoirs’ CIFRI, Barrackpore.

Ranganathan, V., E.R. Venkataswamy, (1967). On the efficiency of mettur Rangoon nets in Bhavanisagar reservoir. Madras Journal of Fisheries, II : 46-60.

Sparre, P. and S.C. Venema, 1992. Introduction to tropical fish stock assessment Part I. Manual. FAO Fisheries Technical Paper, No.3061. Rev. 1 Rome. pp. 172-199.

Sugunan, V.V., 1995. Reservoir Fisheries of India. FAO Fisheries Tech. Report. Daya Publishing house Delhi (India). 345p.

Sulochanan, P., V.C. George and K.M. Naidu, (1968). Experimental fishing in Hirakud reservoir, Orissa (1965 – 67). Fishing Technology, 2:81-95.