Libin Zhang aims to restore sea-cucumber populations to rebalance ocean ecosystems and so that people can use their beneficial compounds.
Libin Zhang is executive deputy director of the Engineering Laboratory for Marine Ranching in the Institute of Oceanology of the Chinese Academy of Sciences. Credit: Yue Wu forI study sea cucumbers, an economically important species in China that is valued for its nutritional and medicinal properties, and is important for the health of the ocean. It cleans the sea floor by feeding on detritus. Thanks to climate change and overfishing, sea-cucumber numbers are falling.
At the Engineering Laboratory for Marine Ranching , we study the animals to maximize their contributions to marine ranching — a form of sustainable aquaculture that restocks valuable species, such as the sea cucumber and therockfish. First we transplant seagrass, and then we release sea cucumbers to clean degraded habitats. Next, we release fish, clams and other creatures to build a balanced ecosystem. The productivity is much higher than what would result from restoring one species.
In this picture, taken in the ELMR, which is in the Institute of Oceanology of the Chinese Academy of Sciences in Qingdao, I am looking at, the most important sea cucumber in northern China. In our tanks, we control temperature and pH to mimic ocean conditions. We study how sea cucumbers move, eat, interact and reproduce, which has helped us to design artificial reefs for the sea cucumbers we release.has some powers that are almost magical.
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