Characteristics of mesozooplankton sound-scattering layer in the Pacific Summer Water, Arctic Ocean
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- Characteristics of mesozooplankton sound-scattering layer in the Pacific Summer Water, Arctic Ocean
- La, Hyoung Sul
Ha, Ho Kyung
Yang, Eun Jin
Chung, Kyung Ho
- Arctic Ocean; Canada Basin; Northwind Ridge; Sound-scattering layer; Arctic copepods; Eddy; Pacific Summer Water; Araon
- Issue Date
- La, Hyoung Sul., et al. 2015. Characteristics of mesozooplankton sound-scattering layer in the Pacific Summer Water, Arctic Ocean. Deep-Sea Research II, 120: 114-123.
- This study investigated the variations in the sound-scatteringlayer(SSL) that were reflected from the mesozooplankton communities around the Northwind Ridge in the western Arctic Ocean.A multi-frequency acoustic survey was conducted to reveal the SSL distribution dominated by Arctic copepodsin the early summer of 2010.The SSL distribution was well correlated with the salinity,nutrients and chlorophyll a (chl-α) associated with the features of the Pacific Summer Water(PSW).TheSSL was observed primarily in the upper most100m of the PSW,which provided a desirable habitat for Arctic copepods due to high nutrients and phytoplankton biomass.The highest density SSL was observed in the eddy-like structure of the PSW,which is most likely because of the high nutrients and chl-α. High regional densities in the SSL indicated that Arctic copepods provide a large portion of the biomass and contribution to the foodwebs in the PSW,in the western Arctic Ocean.
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