Taconet also said climate change’s impact on fisheries will be large-scale and numerous. He noted that a number of its effects are already being felt globally – for example, acidification is having a negative impact on shellfish aquaculture in the Northeast Pacific, he said. The Mediterranean will see major changes, with autochthonous species there likely to be impacted due to increased temperatures. However, in exchange, it may see new species moving in, as fish biomass moves from currently tropical areas into the warming Mediterranean. Overall, fish biomass is expected to increase in temperate areas and high latitudes; and aquaculture opportunities may increase in inundated areas like Southeast Asia, Taconet said.
Source: https://www.seafoodsource.com/news/supply-trade/un-fao-representative-predicts-big-future-for-fisheries