Dieta invernal del cormorán imperial Phalacrocorax atriceps (Aves: Suliformes) en Bahía Caulín, Chiloé, sur de Chile

Authors

  • Claudio N. Tobar Universidad Santo Tomás
  • David Carmona Universidad de Los Lagos
  • Jaime R. Rau Universidad de Los Lagos
  • Jaime A. Cursach Universidad de Los Lagos
  • Jonnathan Vilugrón Universidad de Los Lagos

DOI:

https://doi.org/10.22370/rbmo.2019.54.2.1907

Keywords:

Diet, imperial cormorant, seabirds, piscivorous

Abstract

The imperial cormorant (Phalacrocorax atriceps) is one of the most abundant cormorant species in the Chilean channels and fjords. Although its reproductive and non-reproductive distributions have been studied, works on its diet are inexistent. This paper describes the diet and determines the dominance and diversity of the prey consumed during the winter periods of 2011 and 2014 in Caulín Bay, Chiloé, southern Chile. A total of 73 pellets were collected (30 in 2011 and 43 in 2014). Prey were identified and classified into three categories: fishes (53.57%), cephalopods (39.29%) and crustaceans (7.14%). When prey consumption was analyzed according to their distribution in the water column, we observed statistically significant differences in a preference of benthic demersal over pelagic prey.

Downloads

Published

2019-09-13

How to Cite

Tobar, C. N., Carmona, D., Rau, J. R., Cursach, J. A., & Vilugrón, J. (2019). Dieta invernal del cormorán imperial Phalacrocorax atriceps (Aves: Suliformes) en Bahía Caulín, Chiloé, sur de Chile. Revista De Biología Marina yOceanografía, 54(2), 227–231. https://doi.org/10.22370/rbmo.2019.54.2.1907

Issue

Vol. 54 No. 2 (2019)

Section

Research Note

License

Copyright (c) 2019 Claudio N. Tobar, David Carmona, Jaime R. Rau, Jaime A. Cursach, Jonnathan Vilugrón

Creative Commons License

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

• Los autores que publican en la RBMO transfieren sus derechos de publicación a la Universidad de Valparaíso, conservando los derechos de propiedad intelectual para difundir ampliamente el artículo y la revista en cualquier formato.
• La RBMO autoriza el uso de figuras, tablas y extractos breves de su colección de manuscritos, en trabajos científicos y educacionales, siempre que se incluya la fuente de información.