Artigo

Genetic differentiation of Macrodon ancylodon (Sciaenidae, Perciformes) populations in Atlantic coastal waters of South America as revealed by mtDNA analysis

The king weakfish (pescada-gó in Portuguese - Macrodon ancylodon (Sciaenidae), a demersal (bottom-feeding) species found in South America Atlantic coastal waters from the Gulf of Paria in Venezuela to Baia Blanca in Argentina, is an economically important species because of its abundance and wide ac...

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Autor principal: SILVA, Simoni Santos da
Outros Autores: SCHNEIDER, Horacio, SAMPAIO, Maria Iracilda da Cunha
Grau: Artigo
Idioma: eng
Publicado em: 2011
Assuntos:
Pescada gó
Sciaenidae
DNA mitocondrial
Acesso em linha: http://www.repositorio.ufpa.br:8080/jspui/handle/2011/2231
id ir-2011-2231
recordtype dspace
spelling ir-2011-22312017-10-16T14:29:55Z Genetic differentiation of Macrodon ancylodon (Sciaenidae, Perciformes) populations in Atlantic coastal waters of South America as revealed by mtDNA analysis SILVA, Simoni Santos da SCHNEIDER, Horacio SAMPAIO, Maria Iracilda da Cunha Pescada gó Sciaenidae DNA mitocondrial The king weakfish (pescada-gó in Portuguese - Macrodon ancylodon (Sciaenidae), a demersal (bottom-feeding) species found in South America Atlantic coastal waters from the Gulf of Paria in Venezuela to Baia Blanca in Argentina, is an economically important species because of its abundance and wide acceptance by consumers. Because of its wide distribution this fish may be subject to geographic isolation and this may have resulted in distinct populations along its coastal range. Considering that this species represents an important economic resource, confirmation of whether M. ancylodon is a single species or there are different genetic stocks spread over its wide distribution would be an important contribution to conservation policies and population management of the king weakfish. To investigate differences between king weakfish populations we used the cytochrome b and 16S rRNA genes to characterize M. ancylodon specimens caught throughout its South American range from Venezuela to Argentina. Our results clearly distinguished two genetically different groups which show nucleotide divergence and genetic structuring patterns that strongly suggest they may be different species, disagreeing with the widely accepted traditional taxonomy that accepts only one species of Macrodon in the western Atlantic. 2011-05-31T19:06:41Z 2011-05-31T19:06:41Z 2003 Artigo de Periódico SANTOS, Simôni; SCHNEIDER, Horacio; SAMPAIO, Iracilda. Genetic differentiation of Macrodon ancylodon (Sciaenidae, Perciformes) populations in Atlantic coastal waters of South America as revealed by mtDNA analysis. Genetics and Molecular Biology, São Paulo, v. 26, n. 2, p. 151-161, 2003. Disponível em: <http://www.scielo.br/pdf/gmb/v26n2/a08v26n2.pdf>. Acesso em: 15 mar. 2011. <http://dx.doi.org/10.1590/S1415-47572003000200008>. 1415-4757 http://www.repositorio.ufpa.br:8080/jspui/handle/2011/2231 eng Acesso Aberto application/pdf
institution Repositório Institucional - Universidade Federal do Pará
collection RI-UFPA
language eng
topic Pescada gó
Sciaenidae
DNA mitocondrial
spellingShingle Pescada gó
Sciaenidae
DNA mitocondrial
SILVA, Simoni Santos da
Genetic differentiation of Macrodon ancylodon (Sciaenidae, Perciformes) populations in Atlantic coastal waters of South America as revealed by mtDNA analysis
topic_facet Pescada gó
Sciaenidae
DNA mitocondrial
description The king weakfish (pescada-gó in Portuguese - Macrodon ancylodon (Sciaenidae), a demersal (bottom-feeding) species found in South America Atlantic coastal waters from the Gulf of Paria in Venezuela to Baia Blanca in Argentina, is an economically important species because of its abundance and wide acceptance by consumers. Because of its wide distribution this fish may be subject to geographic isolation and this may have resulted in distinct populations along its coastal range. Considering that this species represents an important economic resource, confirmation of whether M. ancylodon is a single species or there are different genetic stocks spread over its wide distribution would be an important contribution to conservation policies and population management of the king weakfish. To investigate differences between king weakfish populations we used the cytochrome b and 16S rRNA genes to characterize M. ancylodon specimens caught throughout its South American range from Venezuela to Argentina. Our results clearly distinguished two genetically different groups which show nucleotide divergence and genetic structuring patterns that strongly suggest they may be different species, disagreeing with the widely accepted traditional taxonomy that accepts only one species of Macrodon in the western Atlantic.
format Artigo
author SILVA, Simoni Santos da
author2 SCHNEIDER, Horacio
SAMPAIO, Maria Iracilda da Cunha
author2Str SCHNEIDER, Horacio
SAMPAIO, Maria Iracilda da Cunha
title Genetic differentiation of Macrodon ancylodon (Sciaenidae, Perciformes) populations in Atlantic coastal waters of South America as revealed by mtDNA analysis
title_short Genetic differentiation of Macrodon ancylodon (Sciaenidae, Perciformes) populations in Atlantic coastal waters of South America as revealed by mtDNA analysis
title_full Genetic differentiation of Macrodon ancylodon (Sciaenidae, Perciformes) populations in Atlantic coastal waters of South America as revealed by mtDNA analysis
title_fullStr Genetic differentiation of Macrodon ancylodon (Sciaenidae, Perciformes) populations in Atlantic coastal waters of South America as revealed by mtDNA analysis
title_full_unstemmed Genetic differentiation of Macrodon ancylodon (Sciaenidae, Perciformes) populations in Atlantic coastal waters of South America as revealed by mtDNA analysis
title_sort genetic differentiation of macrodon ancylodon (sciaenidae, perciformes) populations in atlantic coastal waters of south america as revealed by mtdna analysis
publishDate 2011
url http://www.repositorio.ufpa.br:8080/jspui/handle/2011/2231
_version_ 1832602544772218880
score 11.755432

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