Introduction
According to a comprehensive survey of deep coral reefs in the high seas, researchers think that policymakers should give more attention to protection of ocean ecosystems and marine mammals [1, 2]. Whether the United Nations Ocean Conference in Lisbon in 2020 will be rescheduled in 2021 or not, there aren’t yet the answer [3]. But it should be a priority for the future of this global ecosystem due to a linkage with sources of sustainable food, energy, materials, biomedicine, and many others.
Currently, ocean economy is accelerating development in the globe and has become a vital support for human sustainable development. Marine organisms have been considered as promising biomedical resources, marine drugs have long been used and exhibit unique advantages in clinical practices. Hence, it is a great task to protect and develop ocean resources and prevent and control ocean pollution since some compounds are valuable tools in biomedicine and applications [4, 5].