Artículo
Genetic evidence and new morphometric data as essential tools to identify the Patagonian seahorse Hippocampus patagonicus (Pisces, Syngnathidae)
González, Raul Alberto Candido
; Dinghi, Pablo Adrián
; Corio, C.; Medina, Alonso Ismael
; Maggioni, M.; Storero, Lorena Pia
; Gosztonyi, Atila Esteban
Fecha de publicación:
02/2014
Editorial:
Wiley Blackwell Publishing, Inc
Revista:
Journal of Fish Biology
ISSN:
0022-1112
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
A genetic study to support morphometric analyses was used to improve the description and validate the Patagonian seahorse Hippocampus patagonicus (Syngnathidae) on the basis of a large number of specimens collected in the type locality (San Antonio Bay, Patagonia, Argentina). DNA sequence data (from the cytochrome b region of the mitochondrial genome) were used to differentiate this species from its relatives cited for the west Atlantic Ocean. Both phylogenetic and genetic distance analyses supported the hypothesis that H. patagonicus is a species clearly differentiated from others, in agreement with morphometric studies. Hippocampus patagonicus can be distinguished from Hippocampus erectus by the combination of the following morphometric characteristics: (1) in both sexes and all sizes of H. patagonicus, the snout length is always less than the postorbital length, whereas the snout length of H. erectus is not shorter than the postorbital length in the largest specimens; (2) in both sexes of H. patagonicus, the trunk length:total length (LTr:LT) is lower than in H. erectus (in female H. patagonicus: 0·27-0·39, H. erectus: 0·36-0·40 and in male H. patagonicus: 0·24-0·34, H. erectus: 0·33-0·43) and (3) in both sexes, tail length:total length (LTa:LT) in H. patagonicus is larger than in H. erectus (0·61-0·78 v. 0·54-0·64).
Palabras clave:
Argentina
,
Phylogeny
,
Redescription
,
San MatÍAs Gulf
,
Taxonomy
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CCT - PATAGONIA NORTE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Citación
González, Raul Alberto Candido; Dinghi, Pablo Adrián; Corio, C.; Medina, Alonso Ismael; Maggioni, M.; et al.; Genetic evidence and new morphometric data as essential tools to identify the Patagonian seahorse Hippocampus patagonicus (Pisces, Syngnathidae); Wiley Blackwell Publishing, Inc; Journal of Fish Biology; 84; 2; 2-2014; 459-474
Compartir
Altmétricas