Spatio-temporal changes in the biochemical parameters of the fishery resource Concholepas concholepas (Gastropoda: Muricidae) in the Southeastern Pacific Ocean

Jorge Lazo-Andrade, Fabián Guzmán-Rivas, Pepe Espinoza, M. Roberto García-Huidobro, Marcela Aldana, José Pulgar, Ángel Urzúa

Research output: Contribution to journalArticlepeer-review

Abstract

The fishery resource Concholepas concholepas is a key species in the benthic marine ecosystems of the Southeastern Pacific Ocean. In the present study, the spatio-temporal changes in the biochemical parameters were evaluated for adult individuals of C. concholepas. They were sampled in summer and winter under upwelling and Non-upwelling conditions in two Management and Exploitation Areas for Benthic Resources of Valparaíso, Chile. The results indicated that the variation in the biochemical parameters is explained to a greater extent by the season. For example, in both upwelling and Non-upwelling conditions, we found a higher content of total lipids, proteins, glucose, and energy in winter than summer. Temporal variations can be explained by the reproductive process after summer season, in which the egg spawning require a greater energy reserves to be perform. Nonetheless, differences in the nutritional status of preys along seasons of the year, can also influence on these results. In fact, these variations in the biochemical parameters of C. concholepas may be indicative of an adaptive seasonal physiological response to the environment for maintaining an optimal energy budget year-round. Altogether, this knowledge will contribute to the Management and Exploitation Areas for Benthic Resources, improving regulatory measures during the annual period of captures and landings of C. concholepas, favoring a more sustainable fishery in the Southeastern Pacific Ocean within an ecosystem approach.

Original languageEnglish
Article number101735
JournalRegional Studies in Marine Science
Volume44
DOIs
Publication statusPublished - May 2021

Keywords

  • Energy reserves
  • MEABRs
  • Mollusk
  • Non-upwelling
  • Reproduction
  • Upwelling

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science
  • Ecology
  • Animal Science and Zoology

Fingerprint

Dive into the research topics of 'Spatio-temporal changes in the biochemical parameters of the fishery resource Concholepas concholepas (Gastropoda: Muricidae) in the Southeastern Pacific Ocean'. Together they form a unique fingerprint.

Cite this