Revista de Biología Tropical ISSN Impreso: 0034-7744 ISSN electrónico: 2215-2075

OAI: https://revistas.ucr.ac.cr/index.php/rbt/oai
Diel use of a saltwater creek by white-tip reef sharks <i>Triaenodon obesus</i> (Carcharhiniformes: Carcharhinidae) in Academy Bay, Galapagos Islands

Versions

PDF

Keywords

galapagos
residency
sharks
site fidelity
ultrasonic telemetry
triaenodon obesus
fidelidad de sitio
galápagos
telemetría ultrasónica
tiburones
triaenodon obesus

How to Cite

Peñaherrera, C., Hearn, A. R., & Kuhn, A. (2012). Diel use of a saltwater creek by white-tip reef sharks <i>Triaenodon obesus</i> (Carcharhiniformes: Carcharhinidae) in Academy Bay, Galapagos Islands. Revista De Biología Tropical, 60(2), 735–743. https://doi.org/10.15517/rbt.v60i2.3993 (Original work published December 4, 2012)

Abstract

White-tip reef sharks are common inhabitants of the shallow waters surrounding the Galapagos Islands, where several known aggregation sites have become touristic attractions. With the aim to describe site fidelity and residency patterns of the white-tip reef sharks in a saltwater creek, we used the ultrasonic telemetry method. The study was undertaken in a saltwater channel South of Academy Bay, Santa Cruz Island, from May 2008-September 2009. A total of nine transmitters were attached to sharks and ultrasonic receivers were deployed at the inner and outside areas of the creek. From the total of fitted sharks, four lost their transmitters. The results obtained with the remaining sharks showed an elevated use of the inner area of the channel during the day, with more use of the external area during the night. However, none of the sharks were detected at the site every day, suggesting that they may have a number of preferred sites within their home range. More studies are needed to detail the home range and habitat use of this species, and to guide its protection level in the Academy Bay area.
https://doi.org/10.15517/rbt.v60i2.3993
PDF

Comments

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Copyright (c) 2012 Revista de Biología Tropical

Downloads

Download data is not yet available.