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].