Projecting global marine biodiversity impacts under climate change scenarios

William W.L. Cheung, Vicky W.Y. Lam, Jorge L. Sarmiento, Kelly Kearney, and Reg Watson & Daniel Pauly
Created: 3/11/2016 - Updated: 9/08/2016

Abstract

Climate change can impact the pattern of marine biodiversity through changes in species’ distributions. However, global studies on climate change impacts on ocean biodiversity have not been performed so far. Our paper aims to investigate the global patterns of such impacts by projecting the distributional ranges of a sample of 1066 exploited marine fish and invertebrates for 2050 using a newly developed dynamic bioclimate envelope model. Our projections show that climate change may lead to numerous local extinction in the sub-polar regions, the tropics and semi-enclosed seas. Simultaneously, species invasion is projected to be most intense in the Arctic and the Southern Ocean. Together, they result in dramatic species turnovers of over 60% of the present biodiversity, implying ecological disturbances that potentially disrupt ecosystem services. Our projections can be viewed as a set of hypotheses for future analytical and empirical studies.

Published On

Wednesday, November 5, 2008

Keywords

Sector Addressed: 
Aquaculture
Target Climate Changes and Impacts: 
Biodiversity
Fishery harvest
Type of Adaptation Action/Strategy: 
Natural Resource Management / Conservation
Incorporate future conditions into natural resources planning and policies
Habitat/Biome Type: 
Marine