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Researchers Use Sound to Determine How Many Krill Live Beneath the Icy Surface of the Southern Ocean

Q. What are you trying to accomplish with this survey? So Kawaguchi: Our expedition’s major objectives are twofold: (1) to determine the krill biomass and coefficient of variation of that biomass estimate for the part of the Southern Ocean off the Mawson coast in East Antarctica and (2) to inform krill fishery management by collecting information that will aid in the design of a monitoring program to understand ecosystem changes. Q. Why is the research you’re doing so important that it had to go forward during a pandemic? Kawaguchi: The krill fishery in the Antarctic Peninsula area the main fishing region is expanding; catch limits have been reached in the middle of the fishing season for most years in the last decade. The fishing nations are looking to expand their fishing efforts into other regions: In 2016, China started fishing off East Antarctica, and Norway notified CCAMLR of its plans to begin fishing for krill in the East Antarctic region (the Indian Ocean sector) of t

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