Stranded cetaceans of Tacna, Peru (2002-2010)

Stranded cetaceans in the coast of Tacna since April 2002 to January 2010 are reported in this work. The research was conducted in Tacna region, southern Perú. The fishing villages surveyed were: Los Palos, Vila-vila, Morro Sama and Ite. According with the results, the more abundant cetaceans in the...

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Bibliographic Details
Published in:Revista Peruana de Biología
Main Author: Pizarro-Neyra, José
Format: Article in Journal/Newspaper
Language:Spanish
Published: Universidad Nacional Mayor de San Marcos, Facultad de Ciencias Biológicas 2010
Subjects:
Pesca incidental
mamíferos marinos
marsopa negra
delfín nariz de botella
delfín gris
ballena franca
cachalote
Bycatch
marine mammals
Burmeister's Porpoise
Bottlenose dolphin
Risso's dolphin
Southern Right Whale
Sperm whale
Physeter macrocephalus
Online Access:https://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/article/view/37
https://doi.org/10.15381/rpb.v17i2.37
Description
Summary:Stranded cetaceans in the coast of Tacna since April 2002 to January 2010 are reported in this work. The research was conducted in Tacna region, southern Perú. The fishing villages surveyed were: Los Palos, Vila-vila, Morro Sama and Ite. According with the results, the more abundant cetaceans in the strandings were: Phocoena spinipinnis (85%) and Tursiops truncatus (8%). Other identified species are Grampus griseus, Eubalaena australis and Physeter macrocephalus. The strandings of greater cetaceans were observed only in Los Palos, meanwhile, 80% of the all stranded animals were founded in Ite. The cause of stranding of some porpoises is due to the entanglement in nets of artisanal fisheries. The stranding of sperm-whale is linked with the anomalous values of superficial sea temperature. Se presentan datos de varamientos de cetáceos producidos entre abril del año 2002 y enero de 2010 en las localidades de Los Palos, Vila-vila, Morro Sama e Ite, ubicadas en la región Tacna. Los resultados indican que: 85% de los ejemplares varados corresponden a Phocoena spinipinnis, 8% a Tursiops truncatus, y el resto a cetáceos de las especies: Grampus griseus, Eubalaena australis y Physeter macrocephalus. Los varamientos de cetáceos grandes solo se observaron en Los Palos, mientras la mayor cantidad de varamientos observados se produjeron en Ite (80%). La causa del varamiento de algunas marsopas (P. spinipinnis) es la captura incidental en redes usadas por la pesca artesanal. Se relaciona el varamiento de P. macrocephalus con anomalías de la temperatura superficial del mar.

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