Can upwelling signals be detected in intertidal fishes of different trophic levels?

J. Pulgar, E. Poblete, M. Alvarez, J. P. Morales, B. Aranda, M. Aldana, V. M. Pulgar

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

For intertidal fishes belonging to three species, the herbivore Scartichthys viridis (Blenniidae), the omnivore Girella laevifrons (Kyphosidae) and the carnivore Graus nigra (Kyphosidae), mass and body size relationships were higher in individuals from an upwelling zone compared with those from a non-upwelling zone. RNA:DNA were higher in the herbivores and omnivores from the upwelling zone. Higher biomass and RNA:DNA in the upwelling intertidal fishes may be a consequence of an increased exposure to higher nutrient availability, suggesting that increased physiological conditioning in vertebrates from upwelling areas can be detected and measured using intertidal fishes of different trophic levels.

Original languageEnglish
Pages (from-to)1407-1415
Number of pages9
JournalJournal of Fish Biology
Volume83
Issue number5
DOIs
Publication statusPublished - Nov 2013

Keywords

  • Intertidal fishes
  • Physiological condition
  • Trophic levels

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science

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