Environmental variability and fisheries in the southeastern Pacific: research status and challenges for fisheries management

Authored by Carolina Parada, Beatriz Yannicelli, Samuel Hormazabal, Sebastian Vasquez, Javier Porobic, Billy Ernst, Claudio Gatica, Marcos Arteaga, Aldo Montecinos, Sergio Nunez, Alexandre Gretchina

Date Published: 2013

DOI: 10.3856/vol41-issue1-fulltext-1

Sponsors: Chilean National Commission for Scientific and Technological Research (CONICYT)

Platforms: No platforms listed

Model Documentation: Other Narrative Flow charts

Model Code URLs: Model code not found

Abstract

Fluctuations in abundance, biomass, age structure and distribution patterns of fisheries often respond to environmental variability. These responses are a result of both direct climatic effects on resources and indirect action on related trophic levels. In this study we review: i) the state of knowledge about the physical mechanisms associated with ocean-atmosphere variability and scales of spatial and temporal variability of the environment and related marine resources, based on observational data and hydrodynamic models, ii) environment relationship with pelagic, demersal and benthic fisheries, and the use of biophysical models to understand these relationships, iii) the current management of pelagic, demersal and benthic resources and the scope in relation to the use of environmental variables, and iv) strategies to improve understanding of the resource-environment relationship, as well as strategies for modeling biophysical and environmental variables in operational models for advice towards management are discussed.

Tags

Individual-based model Anchoveta engraulis-ringens Scallop argopecten-purpuratus Sardine strangomera-bentincki Lobster jasus-edwardsii Central-southern chile Early-life history 1997-1998 el-nino Coastal upwelling system Winter spawning seasons