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Impacts of climate change on pelagic fish and fisheries
Muhling, B.; Lindegren, M.; Clausen, L.W.; Hobday, A.; Lehodey, P. (2018). Impacts of climate change on pelagic fish and fisheries, in: Phillips, B. et al. Climate change impacts on fisheries and aquaculture: A global analysis, volume 1. pp. 771-814. https://dx.doi.org/10.1002/9781119154051.ch23
In: Phillips, B.; Pérez-Ramírez, M. (2017). Climate change impacts on fisheries and aquaculture: A global analysis, volume 1-2. John Wiley: Hoboken. ISBN 9781119154044. 2 volumes pp.
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| Auteurs | | Top |
- Muhling, B.
- Lindegren, M.
- Clausen, L.W.
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| Abstract |
Pelagic fishes support some of the highest yield fisheries worldwide, but the impacts of climate change on the distribution, recruitment and sustainability of these species remain largely uncertain. Several projected changes to the world's oceans are highly relevant to pelagic fishes, including warming, changes in circulation patterns and altered pelagic foodwebs. These are likely to drive changes in species distributions, spawning and migration behaviors, early life survival and recruitment. In many marine ecosystems, climate change will result in environmental conditions which are beyond the range of variability experienced since the advent of industrialized fishing. In recent years, modeling studies have begun to project potential impacts of climate change on pelagic fishes through a variety of methods, ranging from simple correlative models to more complex mechanistic models. As global climate models improve and computing power increases, bounds of uncertainty around these projections will decrease. However some significant gaps remain in our understanding of basic mechanistic drivers of distribution and population dynamics of many species. Climate change will also influence the availability of target species to fishing fleets as fish distributions shift, as well as sustainable harvest rates as stock dynamics change. Management strategies will likely need to be more adaptive, flexible and environmentally explicit in the future if populations are to be sustainably managed, and the communities and livelihoods that they support are to be preserved. This chapter reviews the current state of knowledge regarding potential climate change impacts on pelagic fish and fisheries, including biogeochemical drivers, ecological responses and economic consequences. |
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