Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 7-Day Trial for You or Your Team.

Learn More →

Alimentación del pez insectívoro neotropical Creagrutus bolivari (Pisces: Characidae) según los métodos gráfico y de importancia relativa

Alimentación del pez insectívoro neotropical Creagrutus bolivari (Pisces: Characidae) según los... Alimentación del pez insectívoro neotropical Creagrutus bolivari (Pisces: Characidae) según los métodos gráfico y de importancia relativa 1 1 2 Mario Ortaz , Pablo Borjas von Bach & Rubén Candia 1 Instituto de Biología Experimental, Univ. Central de Venezuela. Apdo. 48170 Caracas 1041 A, Venezuela; [email protected] 2 Instituto de Zoología Tropical, Univ. Central de Venezuela. Recibido 22-X-2004. Corregido 01-XI-2005. Aceptado 22-VI-2006. Abstract: The diet of the neotropical insectivorous fish Creagrutus bolivari (Pisces: Characidae) according to the “graphic” and “relative importance” methods. The diet of a neotropical fish species (Creagrutus boli- vari) was studied using different methods: the Cortés 1997 graphic method and two relative importance indexes, one designed by George and Hadley in 1979 (% RI ) and another proposed by Cortés in 1997 (% IRI ). Only i i discrete prey (aquatic and terrestrial invertebrates) were used in the diet analysis. The occurrence (% A), number (% N) and weight (% G) frequencies were estimated for each food item. A total of 240 specimens (size range from 25.3 to 64.7 mm standard length) were analyzed. For values of % A > 50 %, % IRI was higher than % RI i i with an opposite trend (up to http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Revista de Biología Tropical Unpaywall

Alimentación del pez insectívoro neotropical Creagrutus bolivari (Pisces: Characidae) según los métodos gráfico y de importancia relativa

Ortaz, Mario; Bach, Pablo Borjas von; Candia, Rubén
Revista de Biología Tropical – Apr 1, 2014
Download PDF
14 pages

Loading next page...
 
/lp/unpaywall/alimentaci-n-del-pez-insect-voro-neotropical-creagrutus-bolivari-RAvFFxEcJC

References

References for this paper are not available at this time. We will be adding them shortly, thank you for your patience.

Publisher
Unpaywall
ISSN
0034-7744
DOI
10.15517/rbt.v54i4.14105
Publisher site
See Article on Publisher Site

Abstract

Alimentación del pez insectívoro neotropical Creagrutus bolivari (Pisces: Characidae) según los métodos gráfico y de importancia relativa 1 1 2 Mario Ortaz , Pablo Borjas von Bach & Rubén Candia 1 Instituto de Biología Experimental, Univ. Central de Venezuela. Apdo. 48170 Caracas 1041 A, Venezuela; [email protected] 2 Instituto de Zoología Tropical, Univ. Central de Venezuela. Recibido 22-X-2004. Corregido 01-XI-2005. Aceptado 22-VI-2006. Abstract: The diet of the neotropical insectivorous fish Creagrutus bolivari (Pisces: Characidae) according to the “graphic” and “relative importance” methods. The diet of a neotropical fish species (Creagrutus boli- vari) was studied using different methods: the Cortés 1997 graphic method and two relative importance indexes, one designed by George and Hadley in 1979 (% RI ) and another proposed by Cortés in 1997 (% IRI ). Only i i discrete prey (aquatic and terrestrial invertebrates) were used in the diet analysis. The occurrence (% A), number (% N) and weight (% G) frequencies were estimated for each food item. A total of 240 specimens (size range from 25.3 to 64.7 mm standard length) were analyzed. For values of % A > 50 %, % IRI was higher than % RI i i with an opposite trend (up to

Journal

Revista de Biología Tropical – Unpaywall

Published: Apr 1, 2014

There are no references for this article.