Distribution of Antarctic krill inhabiting Cosmonaut Sea
It is of a great significance for the utilization and protection of Antarctic krill to study the dis-tribution of and predict the suitable habitat of Antarctic krill in the Cosmonaut Sea.Using krill distri-bution data from the Krillbase and data from the global ocean data assimilation reanalysis system(GLORYS),the spatial distribution characteristics of krill in Astronaut Sea and the characteristics of sea surface temperature,sea surface salinity,chlorophyll and sea ice in krill collection points were ana-lyzed.At last,the suitable habitat of Antarctic krill in Astronaut Sea was obtained.Results showed that the density of krill was high in the south and low in the north,and high in the west and low in the east of the Astronaut Sea.The high density was concentrated in the coastal area to the west of Ender-by,and mostly located in the south of 65°S.Results showed that Antarctic krill prefers to habitat sea surface temperature of 271.4K-271.9K,salinity of 33.9-34.1,chlorophyll of 0.28 mg·m 3～0.36 mg·m-3,sea ice concentration of 0.67-0.81.The suitable habitat of the Antarctic krill distributed in the south of 65°S,and was paralleled to the coastline.
Cosmonaut SeaAntarctic krillspatial distribution characteristics
NETL
NSTL
万方数据
