Análisis de progresión modal de Bryconamericus iheringii (Boulenger, 1887) en la laguna Lacombe, provincia de Buenos Aires

Biología Acuática

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Title Análisis de progresión modal de Bryconamericus iheringii (Boulenger, 1887) en la laguna Lacombe, provincia de Buenos Aires
 
Creator Freyre, Lauce Rubén
Maroñas, Miriam E.
Sendra, Eduardo Daniel
Dománico, Alejandro
 
Subject growth
modal descomposition
comparative analysis
crecimiento
peces
descomposición polimodal
 
Description The small silver characin, Bryconamericus iheringii, is an important species in the fish community structure because among the accompanying species of the silver side, Odontesthes bonariensis, it is most density important and has a planctophagous regime which partially overlaps with that of this atherinid as well. The objective of this paper is to describe the individual growth, analyzing size structure and using modal progression analysis as first stage for its demographic appraisal. The catches were carried out with a beach seine net (opening of the mesh in the bag 10 mm) between October of 1997 and October of 1998. The application of modal progression method is hindered by the wide seasonally oscillating growth and by capturability. The obtained parameters for the Lacombe population, assuming the interpretation of two annual cohorts (Sendra & Freyre for Chascomús shallow lake) but fitting the generalized Pauly’s seasonal model of von Bertalanffy, compared with those obtained by the scale they would be close by. However the interpretation of a single annual cohort is more compatible with the lepidologic interpretation.
 
Publisher Instituto de Limnología "Raúl A. Ringuelet", Facultad de Ciencias Naturales y Museo (UNLP)
 
Date 2005-11-30
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
 
Format application/pdf
 
Identifier https://revistas.unlp.edu.ar/bacuatica/article/view/6824
 
Source Biología Acuática; Núm. 22 (2005): Trabajos completos del III Congreso de Ecología y Manejo de Ecosistemas Acuáticos Pampeanos (EMEAP); 123-129
Biología Acuática; No 22 (2005): Trabajos completos del III Congreso de Ecología y Manejo de Ecosistemas Acuáticos Pampeanos (EMEAP); 123-129
Biología Acuática; No 22 (2005): Trabajos completos del III Congreso de Ecología y Manejo de Ecosistemas Acuáticos Pampeanos (EMEAP); 123-129
Biología Acuática; n. 22 (2005): Trabajos completos del III Congreso de Ecología y Manejo de Ecosistemas Acuáticos Pampeanos (EMEAP); 123-129
1668-4869
 
Language spa
 
Relation https://revistas.unlp.edu.ar/bacuatica/article/view/6824/5781
 
Rights https://creativecommons.org/licenses/by-nc-sa/4.0
 

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