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http://dx.doi.org/10.9710/kjm.2015.31.3.165

Predation of Neptunea cumingii Crosse on the Young Disk Abalone, Haliotis discus hannai (Ino) in the Eastern Coast of Korea  

Byon, Ju-Young (Korea Hydro & Nuclear Power Co., Ltd.)
Moon, Hyung-Tae (Korea Hydro & Nuclear Power Co., Ltd.)
Son, Min Ho (Marine Eco-technology Institute)
Hwang, Choul-Hee (Marine Eco-technology Institute)
Lee, Jong-Wook (Marine Eco-technology Institute)
Kim, Dae-Ik (Marine Eco-technology Institute)
Publication Information
The Korean Journal of Malacology / v.31, no.3, 2015 , pp. 165-170 More about this Journal
Abstract
The presence of predators (excluding starfishes) of disk abalone, Haliotis discus hannai was directly investigated by nine SCUBA divings during February-December 2014 at the coastal areas of Yangjeong, Jukjin and Bongpyeong, Uljin, Korea, where the young disk abalone seedlings were artificially released. The results revealed that a total of six individuals of Neptunea cumingii that were feeding on the young disk abalone were observed within the water depth 10m at the coastal area of Jukjin, of which bottom substrate consists of the relatively high composition rate of rocks (60.3%). Though N. cumingii is well known as a carnivorous predator of diverse marine invertebrates such as live mussels (Mytilus spp.) it is the first report that this predator also feeds on the disk abalones. Thus, our results strongly suggest that the future artificial release projects around Korean coasts necessitate extermination works of predators including newly observed N. cumingii in this study as well as previously known starfishes prior to the releases of young Pacific abalone seedlings.
Keywords
Neptunea cumingii; predation; abalone; Korea;
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