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http://dx.doi.org/10.5657/KFAS.2019.0740

Diet of the Pacific White-sided Dolphin Lagenorhynchus obliquidens in the East Sea of Korea  

Lee, Dasom (Cetacean Research Institute, National Institute of Fisheries Science)
Lee, Seulhee (Cetacean Research Institute, National Institute of Fisheries Science)
Kim, Hyun Woo (Cetacean Research Institute, National Institute of Fisheries Science)
Yoo, Joon-Taek (Cetacean Research Institute, National Institute of Fisheries Science)
Sohn, Hawsun (Cetacean Research Institute, National Institute of Fisheries Science)
Publication Information
Korean Journal of Fisheries and Aquatic Sciences / v.52, no.6, 2019 , pp. 740-744 More about this Journal
Abstract
Pacific white-sided dolphins Lagenorhynchus obliquidens inhabit cool temperate waters; in Korean waters, they concentrate near the coast of Gangwon and Gyeongbuk from late autumn to early spring. We collected 15 individuals from Yeongduk, Gyeongju, Ulsan, and Busan between December 2018 and February 2019 and analyzed their stomach contents. Fresh prey items were identified to the species level, and residual stomach contents that were unidentified due to digestion were filtered through a sieve to find fish otoliths and cephalopod beaks. The most important prey items of Pacific white-sided dolphins were cephalopods, composing 68.0% of the diet by occurrence. Fishes were the second largest dietary component, making up 32.0% of the diet by occurrence. Of the cephalopod species consumed, Watasenia scintilans was the principal prey item.
Keywords
Pacific white-sided dolphin; East Sea; Stomach content analysis; Watasenia scintillans; Engraulis japonicus;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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