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Abstract
The present study was performed to describe length-weight relationship of ecological and commercial important exotic fish brown trout (Salmo trutta fario L.) inhabited in River Asiganga, a tributary of River Bhagirathi. The knowing of length-weight relationship is important because it provides information on the life history of species and an input to the assessment of fishery resource of the region. The length-weight relationship was estimated as: Log W = 0.310 + 3.096 Log L for males, Log W = 0.291 + 3.040 Log L for females and Log W = 0.302 + 3.073 Log L for overall. The coefficient of correlation (r) for the length-weight relationship was estimated 0.985 which showed a high degree of positive correlation between the length and weight of the fish. The condition factor (K) value was estimated highest 1.473±0.694 for the male and 1.357±0.210 for the female sex during winter.
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References
- Ahmet, A., Kara, C. and Murat, H., 2005. Age, growth and diet composition of the resident brown trout, Salmo trutta macrostigma Dumeril 1858, in Firniz stream of the river Ceyhan, Turkey. Turk. J. Vet. Anim. Sci., 29: 285-295.
- Amin, S.M.N., Zafar, M. and Halim, A., 2008. Age, growth, mortality and population structure of the oyster, Crassostre amadrasensis, in the Moheskhali channel (Southeastern coast of Bangledesh). J. Applied Ichthyol., 24: 18-25.
- Arslan, M., Yildirim, A. and Bekta, S., 2004. Length-weight relationship of brown trout, Salmo trutta L., inhabiting Kan stream, Coruh basin, north-eastern Turkey.Turk. J. Fish. Aquat. Sci., 4: 45-48.
- Bagenal, T.B., 1978. Methods for Assessment of Fish Production in Freshwaters.Third Ed. Black well scientific publication, Oxford, London, 365p.
- Behnke, R.J., 2002. Trout and Salmon of North America.First edition. The Free Press, Simon and Schuster Inc., New York, 360 p.
- Beyer, J.E., 1987. On length-weight relationships. Part I: Computing the mean weight of the fish of a given length class. Fish Byte., 5: 11-13.
- Bolger, T. and Connolly, P.L., 1989. Selection of suitable indices for the measurement and analysis of fish condition. J. Fish Biol., 34: 171-182.
- Froese, R., 2006. Cube law, condition factor and weight–length relationships: History, meta-analysis and recommendations. J. Appl. Ichthyol., 22: 241-253.
- Goncalves, J.M.S., Bentes, L., Lino, P.G., Ribeiro, J., Canario, A.V.M. and Erzini, K., 1997. Weight-length relationships for selected fish species of the small-scale demersal fisheries of the south and south-west coast of Portugal. Fish. Res., 30: 253-256.
- Isaac-Nahum, V.J. and Vazzoler, A.E.A. de M., 1983 .Biologia reproductive de Micropogoria sfurnieri (desmarest, 1823) (Teleostei, Sciaenidae).Fator de condicao como indicador do Periodo de desova. Boletim do Instituto Ocenogrefica, Sao Paulo, 32 (1): 63-69.
- Kimmerer, W., Avent, S.R. and Bollens, S.M., 2005. Variability in Length-weight relationships used to estimate biomass of estuarine fish from survey data. Trans. Am. Fish. Soc., 134: 481-495.
- King, M., 1995. Fisheries biology, Assessment and Management: Fishing news books. First Edition. Blackwell scientific Ltd., Oxford, 340-341.
- Kumar, K., Sehgal, K.L. and Sunder, S., 1979. Length-weight relationship and ponderal index of brown trout, Salmotruttafario (Linnaeus) catches in the streams of Kashmir. J. Inland Fish. Soc. India, 11(1): 56-61
- Lawson, E.O., 2011. Lenth-weight relationships and fecundity estimates in mudskipper, Periophthalmus papilio (Bloch and Schneider 1801) caught from the mangrove swamps of Lagos Lagoon, Nigeria. J. Fish. Aquat. Sci., 6: 264-271.
- LeCren, E.D., 1951. The length weight relationship and seasonal cycle in gonad weight and condition in perch (Perca fluviatilis).J. Anim. Ecol., 20: 201-219.
- Morey, G., Moranta, J., Massuti, E., Grau, A., Linde, M., Riera, F. and Morales-Nin, B., 2003.Weight-length relationships of littoral to lower slope fishes from the western mediterranean.Fisher. Res., 62: 89-96.
- Moss, B., 1998. Ecology of Freshwaters: Man and Medium, Past to Future. Third Edition, Blackwell Science Ltd.
- Nikolsky, G.W., 1963. The Ecology of fishes. First edition. Academic Press, London and New York, 352.
- Ozvarol, Z.A.B., Yildirim, A., Bektas, S., Ozvarol, Y. and Yilmaz, S., 2010. Intrabasin variation in growth and condition of brown trout (Salmo trutta) inhabited Coruh basin, Turkey. J. Anim. Vet.Adv., 9(19): 2445-2454.
- Pauly, D., 1993.Fish byte section editorial, Naga. First edition, ICLARM Quart.16-26.
- Rahim, M.H.A., Rozila, A. and Mat Jais, A.M., 2009. The physicochemical and morphological study of haruan Channa striatus in Peninsular Malaysia. Res. Biol. Sci., 4: 994-1009.
- Rawat, M.S., Bantwan, B., Singh D. and Gusain, O.P., 2011.Status of brown trout (Salmo trutta fari L .) in Garhwal Himalaya with a note on it morphometric characteristics. Env. Cons. J., 12(3): 47-52.
- Richter, H.C., Luckstadt, C., Focken, U. and Becker, K., 2000. An improve procedure to assess fish condition on the basis of length-weight relationships. Arch. Fish. Mar. Res., 48: 255-264.
- Sparre, P., Ursin, E. and Venema, S.C., 1989. Introduction to tropical fish stock assessment. Part I - Manual. FAO Fisheries technical paper, No. 306.I Rome, FAO.
- Tesch, F.W., 1971. Age and Growth in Fish Production in Fresh Waters. Blackwell Publisher, Oxford, 98-130.
- S.P.S.S., 1999. Advance Models 10.0 S.P.S.S. Incorporation, Chicago, IL. 60606-6307.
- Wootton, R.S., 1992. Fish Ecology. First edition., Great Britain by Thomson Litho Ltd., Scotland, 203p.
References
Ahmet, A., Kara, C. and Murat, H., 2005. Age, growth and diet composition of the resident brown trout, Salmo trutta macrostigma Dumeril 1858, in Firniz stream of the river Ceyhan, Turkey. Turk. J. Vet. Anim. Sci., 29: 285-295.
Amin, S.M.N., Zafar, M. and Halim, A., 2008. Age, growth, mortality and population structure of the oyster, Crassostre amadrasensis, in the Moheskhali channel (Southeastern coast of Bangledesh). J. Applied Ichthyol., 24: 18-25.
Arslan, M., Yildirim, A. and Bekta, S., 2004. Length-weight relationship of brown trout, Salmo trutta L., inhabiting Kan stream, Coruh basin, north-eastern Turkey.Turk. J. Fish. Aquat. Sci., 4: 45-48.
Bagenal, T.B., 1978. Methods for Assessment of Fish Production in Freshwaters.Third Ed. Black well scientific publication, Oxford, London, 365p.
Behnke, R.J., 2002. Trout and Salmon of North America.First edition. The Free Press, Simon and Schuster Inc., New York, 360 p.
Beyer, J.E., 1987. On length-weight relationships. Part I: Computing the mean weight of the fish of a given length class. Fish Byte., 5: 11-13.
Bolger, T. and Connolly, P.L., 1989. Selection of suitable indices for the measurement and analysis of fish condition. J. Fish Biol., 34: 171-182.
Froese, R., 2006. Cube law, condition factor and weight–length relationships: History, meta-analysis and recommendations. J. Appl. Ichthyol., 22: 241-253.
Goncalves, J.M.S., Bentes, L., Lino, P.G., Ribeiro, J., Canario, A.V.M. and Erzini, K., 1997. Weight-length relationships for selected fish species of the small-scale demersal fisheries of the south and south-west coast of Portugal. Fish. Res., 30: 253-256.
Isaac-Nahum, V.J. and Vazzoler, A.E.A. de M., 1983 .Biologia reproductive de Micropogoria sfurnieri (desmarest, 1823) (Teleostei, Sciaenidae).Fator de condicao como indicador do Periodo de desova. Boletim do Instituto Ocenogrefica, Sao Paulo, 32 (1): 63-69.
Kimmerer, W., Avent, S.R. and Bollens, S.M., 2005. Variability in Length-weight relationships used to estimate biomass of estuarine fish from survey data. Trans. Am. Fish. Soc., 134: 481-495.
King, M., 1995. Fisheries biology, Assessment and Management: Fishing news books. First Edition. Blackwell scientific Ltd., Oxford, 340-341.
Kumar, K., Sehgal, K.L. and Sunder, S., 1979. Length-weight relationship and ponderal index of brown trout, Salmotruttafario (Linnaeus) catches in the streams of Kashmir. J. Inland Fish. Soc. India, 11(1): 56-61
Lawson, E.O., 2011. Lenth-weight relationships and fecundity estimates in mudskipper, Periophthalmus papilio (Bloch and Schneider 1801) caught from the mangrove swamps of Lagos Lagoon, Nigeria. J. Fish. Aquat. Sci., 6: 264-271.
LeCren, E.D., 1951. The length weight relationship and seasonal cycle in gonad weight and condition in perch (Perca fluviatilis).J. Anim. Ecol., 20: 201-219.
Morey, G., Moranta, J., Massuti, E., Grau, A., Linde, M., Riera, F. and Morales-Nin, B., 2003.Weight-length relationships of littoral to lower slope fishes from the western mediterranean.Fisher. Res., 62: 89-96.
Moss, B., 1998. Ecology of Freshwaters: Man and Medium, Past to Future. Third Edition, Blackwell Science Ltd.
Nikolsky, G.W., 1963. The Ecology of fishes. First edition. Academic Press, London and New York, 352.
Ozvarol, Z.A.B., Yildirim, A., Bektas, S., Ozvarol, Y. and Yilmaz, S., 2010. Intrabasin variation in growth and condition of brown trout (Salmo trutta) inhabited Coruh basin, Turkey. J. Anim. Vet.Adv., 9(19): 2445-2454.
Pauly, D., 1993.Fish byte section editorial, Naga. First edition, ICLARM Quart.16-26.
Rahim, M.H.A., Rozila, A. and Mat Jais, A.M., 2009. The physicochemical and morphological study of haruan Channa striatus in Peninsular Malaysia. Res. Biol. Sci., 4: 994-1009.
Rawat, M.S., Bantwan, B., Singh D. and Gusain, O.P., 2011.Status of brown trout (Salmo trutta fari L .) in Garhwal Himalaya with a note on it morphometric characteristics. Env. Cons. J., 12(3): 47-52.
Richter, H.C., Luckstadt, C., Focken, U. and Becker, K., 2000. An improve procedure to assess fish condition on the basis of length-weight relationships. Arch. Fish. Mar. Res., 48: 255-264.
Sparre, P., Ursin, E. and Venema, S.C., 1989. Introduction to tropical fish stock assessment. Part I - Manual. FAO Fisheries technical paper, No. 306.I Rome, FAO.
Tesch, F.W., 1971. Age and Growth in Fish Production in Fresh Waters. Blackwell Publisher, Oxford, 98-130.
S.P.S.S., 1999. Advance Models 10.0 S.P.S.S. Incorporation, Chicago, IL. 60606-6307.
Wootton, R.S., 1992. Fish Ecology. First edition., Great Britain by Thomson Litho Ltd., Scotland, 203p.