Krill and humpback whales: a strong link in the ecological chain

New research shows that krill abundance is directly related to humpback whale pregnancy rates. When krill is plentiful, it is easier for humpback whales to conceive; when it is not, it is harder. Krill is a key link in the marine food chain, and the expansion of industrial krill fishing has led to fluctuations in their numbers, which not only affects the reproduction of humpback whales, but also impacts other populations that depend on krill, threatening the stability of the marine ecosystem. Experts have called for the establishment of scientific fishing quotas, strengthened monitoring of krill, and international cooperation to protect marine biodiversity and promote sustainable development.