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Climate change is modifying fish distributions [6] and the productivity of marine and freshwater species. Climate change is expected to lead to significant changes in the availability and trade of fish products. [7] The geopolitical and economic consequences will be significant, especially for the countries most dependent on the sector.
He said working as a commercial fisher today means working to undo the damage to fisheries from harmful practices in the past like overfishing and understanding the impact climate change will have ...
Climate change is modifying fish distributions [104] and the productivity of marine and freshwater species. Climate change is expected to lead to significant changes in the availability and trade of fish products. [105] The geopolitical and economic consequences will be significant, especially for the countries most dependent on the sector.
In addition, climate change impacts oceanic currents and sea levels, further altering fish distributions and habitats. Furthermore, ocean acidification , resulting from increased CO2 levels, compromises the ability of shellfish and corals to form shells and skeletons, further endangering marine ecosystems and the communities that depend on them.
Fish-MIP's goal is to use this ensemble modelling to project a more robust picture of the future state of fisheries and marine ecosystems under the impacts of climate change, [4] and ultimately to help inform fishing policy.
It is likely there will be a 15% decrease in the number of marine animals and a decrease of 21% to 24% in fisheries catches by the end of the 21st century because of climate change. [ 68 ] A 2020 study reports that by 2050 global warming could be spreading in the deep ocean seven times faster than it is now, even if emissions of greenhouse ...
Jack mackerel caught by a Chilean purse seiner Fishing down the food web. Overfishing is the removal of a species of fish (i.e. fishing) from a body of water at a rate greater than that the species can replenish its population naturally (i.e. the overexploitation of the fishery's existing fish stock), resulting in the species becoming increasingly underpopulated in that area.
However, coral reefs are increasingly threatened by climate change, pollution, and overfishing, leading to coral bleaching and ecosystem degradation. Image credits: USFWS Pacific