Taxonomic status of two morphotypes of Coryphaena hippurus (Perciformes: Coryphaenidae)

被引：1
|
作者：
Bonner, Alan [1 ]
Duarte, Michelle R. [1 ]
Souza, Rosa C. C. L. [1 ]
Monteiro-Neto, Cassiano [2 ]
Silva, Edson P. [1 ]
机构：
[1] Univ Fed Fluminense, Dept Biol Marinha, Lab Genet Marinha & Evolucao, Outeiro Sao Joao Batista S-N, BR-24001970 Niteroi, RJ, Brazil
[2] Univ Fed Fluminense, Dept Biol Marinha, Lab Biol Necton & Ecol Pesqueira, Outeiro Sao Joao Batista S-N, BR-24001970 Niteroi, RJ, Brazil
来源：
NEOTROPICAL ICHTHYOLOGY | 2017年 / 15卷 / 01期
关键词：
Alcohol dehydrogenase; Allozyme electrophoresis; Biochemical systematics; Fishery resources; Genetic variation; ANAEROBIC METABOLISM; ALLOZYME VARIATION; GENETIC-VARIATION; POPULATION; MARINE; FISHES; WESTERN; REPRODUCTION; ATLANTIC; DISTANCE;
D O I：
10.1590/1982-0224-20160102
中图分类号：
Q95 [动物学];
学科分类号：
071002 ;
摘要：
Two Coryphaena hippurus morphotypes (dourado and palombeta) are found along the Brazilian coast and are considered by Rio de Janeiro's fisherman and fishmongers as two different species. Furthermore, these morphotypes are commercialized under different values and suffer different fishing pressure. Therefore, a definition of their taxonomic status is an important economic and biological matter. In order to investigate this problem, allozyme electrophoresis method was undertaken for seventeen loci on 117 individuals of C. hippurus sampled at Cabo Frio/RJ (Brazil). The data indicate homogeneity between the morphotypes gene pools. Nevertheless, differences were found for genetic variation among dourado and palombeta, especially due to alcohol dehydrogenase locus. Natural selection hypothesis is discussed in explaining these findings.
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页数：8
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