Predicting the impacts and socio-economic consequences of climate change on global marine ecosystems and fisheries: the QUEST_Fish Framework

Manuel Barange*, Icarus Allen, Eddie Allison, Marie Caroline Badjeck, Julia Blanchard, Benjamin Drakeford, Nicholas K. Dulvy, James Harle, Robert Holmes, Jason Holt, Simon Jennings, Jason Lowe, Gorka Merino, Christian Mullon, Graham Pilling, Lynda Rodwell, Emma Tompkins, Francisco Werner

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapter (peer-reviewed)peer-review

Abstract

Climate change is accelerating and is already affecting the marine environment. Estimating the effects of climate change on the production of fish resources, and their dependent societies, is complex because of: 1. difficulties of downscaling Global Climate Models (GCM) to scales of biological relevance; 2. uncertainties over future net primary production and its transfer through the food chain; 3. difficulties in separating the multiple stressors affecting fish production; and 4. inadequate methodology to estimate human vulnerabilities to these changes. QUEST_Fish, a research project led from the UK, is addressing some of these challenges through an innovative, multi-disciplinary approach focused on estimating the added impacts that climate change is likely to cause, and the subsequent additional risks and vulnerabilities of these effects for human societies. The project uses coupled shelf seas biophysical ecosystem models forced by GCM forecasts to predict ecosystem functioning in past, present, and future time-slices. For each slice, and for 20 Large Marine Ecosystems, we estimate plankton production and use this to estimate size-based fish production through models based on macro-ecological theory. Ways of assessing vulnerability of fisheries to future climate change are developed, including the market consequences for fish-based global commodities. The results provide a new framework and new insights into the complex interactions between humans and nature.

Original languageEnglish
Title of host publicationWorld Fisheries
Subtitle of host publicationA Social-Ecological Analysis
EditorsRosemary E. Ommer, R. Ian Perry, Kevern Cochrane, Philippe Cury
PublisherBlackwell Publishing Ltd
Pages31-59
Number of pages29
ISBN (Electronic)9781444392241
ISBN (Print)9781444334678
DOIs
Publication statusPublished - 11 Mar 2011

Keywords

  • bio-physical modeling
  • Climate change
  • economic impacts
  • fish production
  • macro-ecological theory
  • marine commodities
  • marine ecosystems
  • vulnerability assessment

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