ST IES ON LENG IGHT RELATIONSHIPS OF GERRES FILAMENTOSUS CUVIER FROM THE ESTU IES OF T I SOUTHEKN r:ARNAT COAST*


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Authors

  • K. S. Udupa College of Fisheries, Kankanady, Mangalore - 575 002
  • M. Averel College of Fisheries, Kankanady, Mangalore - 575 002
  • C. H. Raghavendra College of Fisheries, Kankanady, Mangalore - 575 002
  • Vinayak Bevinahalli College of Fisheries, Kankanady, Mangalore - 575 002
  • Ashwath Reddy College of Fisheries, Kankanady, Mangalore - 575 002
  • A. R. Kumarswamy College of Fisheries, Kankanady, Mangalore - 575 002

Abstract

Random samples of Gerres filamentosus Cuvier from the Netravathi-
Gurpur, Mulky, Kallayanapura, Mabukala and Kundapura estuaries of the
southern Karnataka Coast were collected in the years 2000, 2001 and 2002,
and length-weight relationships for each estuary were derived using multiple
linear regression technique with one dummy variable. Hence, combined or
sex-wise length-weight relationships were obtained after testing for
homogeneity and isometric growth condition of fishes for each estuary by ttest.
The extent of closeness of length-weight relationships between sexes
and among estuaries for different years is explained by a trend line graph.
The whole process of multiple linear regression analysis with one dummy
variable is a better substitute for the analysis of covariance technique.
Keywords: Gerres filamentosus, estuaries, length-weight relationships,
multiple linear regression technique

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Udupa, K. S., Averel, M., Raghavendra, C. H., Bevinahalli, V., Reddy, A., & Kumarswamy, A. R. (2016). ST IES ON LENG IGHT RELATIONSHIPS OF GERRES FILAMENTOSUS CUVIER FROM THE ESTU IES OF T I SOUTHEKN r:ARNAT COAST*. Journal of Indian Fisheries Association, 30. https://epubs.icar.org.in/index.php/JIFA/article/view/56876