Length-weight relationships of 29 species of teleost fish from shallow estuarine environment of Samborombon Bay (Rí­­o De la Plata, Argentina)

Agustín Solari,Andrés Conrado Milessi,Mirta Lidia García,Andrés Javier Jaureguizar,Tomás Maiztegui

doi:10.20950/1678-2305.2016v42n1p236

Abstract

The lengthí weight relationships (LWR) of 29 teleost fish species from the shallow estuarine environments of the Samborombón Bay wetland (Río de la Plata, Argentina) were estimated. A total of 6,376 individuals belonging to 19 families were measured and weighed. The best represented family was Sciaenidae with 6 species, followed by Clupeidae (n = 3), and Heptapteridae and Characidae with 2 species each. Significant lengthí weight relationships with high correlation coefficients were found for all species, which mostly presented positive allometric growth. This study reports the first findings regarding the LWR of 29 species in the Samborombón Bay waters. New maximum sizes and geographic distribution records of certain species are also commented.

Highlights

The length–weight relationships (LWR) of 29 teleost fish species from the shallow estuarine environments of the Samborombón Bay wetland (Río de la Plata, Argentina) were estimated
Analysis of the fish fauna of estuarine environments provides information of the biology at early stages of some species, some of them important for the future of fisheries activities (LASTA, 1995).The parameters estimation of the length-weight relationship (LWRs) is considered a key element to fishery scientist; the LWR can be used for the estimation of other life history parameters through empirical relations, and for the conversion of length structures into weight structures (FROESE, 2006)
A number of 6,376 specimens belonging to 29 species included in 19 families were analyzed (Table 1), representing the 59 % of the species registered to the area (SOLARI et al, 2009)

Summary

Introduction

The length–weight relationships (LWR) of 29 teleost fish species from the shallow estuarine environments of the Samborombón Bay wetland (Río de la Plata, Argentina) were estimated. As relações peso-comprimento (RPC) de 29 espécies de peixes teleósteos dos ambientes estuarinos rasas da zona húmida da Baía Samborombón (Río de la Plata, Argentina) foram estimados.

Objectives

Results

Conclusion