<abstract xmlns="http://www.w3.org/1999/xhtml"><p> Factor and multiple regression analysis were used to extract the morphometric variables that contributed to feeding success in three small freshwater fishes. Of the first two factors, factor 1, showed high loading of gut weight (GW), length of the upper (UJ), and lower jaws (LJ) in mola, Amblypharyngodon mola (Hamilton), and GW and vertical mouth opening (VMO) in punti, Puntius ticto (Hamilton). In darikana, Esomus danricus (Hamilton), GW, horizontal mouth opening (HMO), and VMO were highly loaded on factor 2. Gut length (GL) was closely associated withGWof all three species. Subsequently, variables with high loading on factors 1 or 2 were subjected to multiple regression analysis to observe their effect on feeding success, consideringGWas the dependent variable and the extracted variables as the independent variable. In A. mola, HMO and GL influenced GW, whereas in P. ticto, only GL determined GW in the fish. In E. danricus, GL, VMO, and HMO exerted a low effect on GW. Exceptionally, the present study suggested that feeding success in small fishes is largely determined by UJ, LJ, and GL or mouth openings.</p></abstract>

Factor and multiple regression analysis were used to extract the morphometric variables that contributed to feeding success in three small freshwater fishes. Of the first two factors, factor 1, showed high loading of gut weight (GW), length of the upper (UJ), and lower jaws (LJ) in mola, Amblypharyngodon mola (Hamilton), and GW and vertical mouth opening (VMO) in punti, Puntius ticto (Hamilton). In darikana, Esomus danricus (Hamilton), GW, horizontal mouth opening (HMO), and VMO were highly loaded on factor 2. Gut length (GL) was closely associated withGWof all three species. Subsequently, variables with high loading on factors 1 or 2 were subjected to multiple regression analysis to observe their effect on feeding success, consideringGWas the dependent variable and the extracted variables as the independent variable. In A. mola, HMO and GL influenced GW, whereas in P. ticto, only GL determined GW in the fish. In E. danricus, GL, VMO, and HMO exerted a low effect on GW. Exceptionally, the present study suggested that feeding success in small fishes is largely determined by UJ, LJ, and GL or mouth openings.

Role of morphometry in determining the feeding success of small freshwater fish species: Multivariate analysis of Amblypharyngodon mola, Puntius ticto, and Esomus danricus

Aquatic Ecology and Fish Biology Laboratory Department of Zoology Visva Bharati University, Santiniketan, Bolpur, West Bengal, India – 731235

Fisheries & Aquatic Life

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Factor and multiple regression analysis were used to extract the morphometric variables that contributed to feeding success in three small freshwater fishes....

Role of morphometry in determining the feeding success of small freshwater fish species: Multivariate analysis of Amblypharyngodon mola, Puntius ticto, and Esomus danricus

Publié en ligne: 29 juil. 2015

Pages: 79 - 90

Reçu: 04 mars 2015

Accepté: 03 juin 2015

DOI: https://doi.org/10.1515/aopf-2015-0009

Mots clés
morphoecology, feeding strategy, regression analysis, gape limitation, feeding ecology

© Archives of Polish Fisheries

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Role of morphometry in determining the feeding success of small freshwater fish species: Multivariate analysis of Amblypharyngodon mola, Puntius ticto, and Esomus danricus

Publié en ligne: 29 juil. 2015

Pages: 79 - 90

Reçu: 04 mars 2015

Accepté: 03 juin 2015

DOI: https://doi.org/10.1515/aopf-2015-0009

Mots clésmorphoecology, feeding strategy, regression analysis, gape limitation, feeding ecology

© Archives of Polish Fisheries

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
morphoecology, feeding strategy, regression analysis, gape limitation, feeding ecology