Feeding ecology of fish larvae from Chilean Patagonia during austral winter

Mauricio F. Landaeta; Javier Vera-Duarte; María José Ochoa-Muñoz; Claudia A. Bustos; Fernando Balbontín

Keywords: feeding, ichthyoplankton, prey size, overlap

Abstract

Feeding habits of the ichthyoplankton from Chilean Patagonia (44-46 degrees 30'S) were studied during June-July 2012 (austral winter). Ichthyoplankton assemblage was composed by 10 species, with low abundance (3.8 to 16.73 ind. 1000 m(-3)). Most abundant larvae were Mourolicus porvipinnis, Leptonotus blainvilleanus and Sprattus fuegensis. These three species fed mainly on calanoid copepodites, Paracalanus indicus and Calanus sp. copepodites, and cyphonautes. Trophic overlap among dominant fish larvae was high (Schoener's D > 0.69) and no significant differences were detected in prey composition and size. Therefore, no resource partitioning occurred in planktonic fish larvae during winter 2012 in Chilean Patagonia.

Más información

Título según WOS: Feeding ecology of fish larvae from Chilean Patagonia during austral winter
Título según SCOPUS: Feeding ecology of fish larvae from chilean patagonia during austral winter [Ecología trófica de larvas de peces de la patagonia chilena durante el invierno]
Título según SCIELO: Feeding ecology of fish larvae from Chilean Patagonia during austral winter
Título de la Revista: REVISTA DE BIOLOGIA MARINA Y OCEANOGRAFIA
Volumen: 54
Número: 2
Editorial: UNIV VALPARAISO
Fecha de publicación: 2019
Página de inicio: 221
Página final: 226
Idioma: English
DOI:

10.22370/rbmo.2019.54.2.1906

Notas: ISI, SCIELO, SCOPUS