Feeding ecology of fish larvae from Chilean Patagonia during austral winter

Authors

  • Mauricio F. Landaeta Universidad de Valparaíso
  • Javier Vera-Duarte Universidad de Valparaíso
  • María José Ochoa-Muñoz Universidad de Valparaíso
  • Claudia A. Bustos Universidad de Valparaíso
  • Fernando Balbontín Universidad de Valparaíso

DOI:

https://doi.org/10.22370/rbmo.2019.54.2.1906

Keywords:

Feeding, overlap, ichthyoplankton, prey size

Abstract

Feeding habits of the ichthyoplankton from Chilean Patagonia (44-46°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 Maurolicus parvipinnis, 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.

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Published

2019-09-13

How to Cite

Landaeta, M. F., Vera-Duarte, J., Ochoa-Muñoz, M. J., Bustos, C. A., & Balbontín, F. (2019). Feeding ecology of fish larvae from Chilean Patagonia during austral winter. Revista De Biología Marina yOceanografía, 54(2), 221–226. https://doi.org/10.22370/rbmo.2019.54.2.1906

Issue

Vol. 54 No. 2 (2019)

Section

Research Note

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