Question

Climate changes can produce various effects in ecosystems. Which of the following is a way that marine ecosystems can be affected by climate warming trends?

Answer 1

Since the speed of many physiological processes in marine organisms is determined by the temperature, the first consequence of the changes in the conditions of the medium becomes offset the timing of seasonal events, such as the timing of spawning fish. There have also offset migration routes and spawning areas. So, as a result of warming in the Sea of ​​Japan, spawning navaga shifted to an earlier date, because of the reduction of the area of ​​"cold spots" in the eastern Bering Sea shelf feeding migration of pollock, halibut and crab are lengthened, but because of the temperature rise to the east of Japan, spawning saury expanding. These changes significantly affect the success of reproduction, resulting in changes populations of their fishery.