plSSN : 0374-8111 | elSSN : 2287-8815
plSSN : 0374-8111 | elSSN : 2287-8815
plSSN : 0374-8111elSSN : 2287-8815
Comparative Analysis of Benthic Environmental Characteristics on Tid al Clam Farms with Sand- and Mud-Dominated Sediments
전승렬·이기희·김예림·임동훈*·황운기
국립수산과학원 갯벌연구센터
In this study, we aimed to compare the benthic environmental characteristics of major clam farming tidal flats based on sand- and mud- dominated sediments. Hwangdo (HD) and Boryeong (BR) comprised an average of 73.0% sand. Meanwhile, Geunso (GnS) and Gomso (GmS) consisted of 81.1% mud. All sites maintained organic pollution levels below the environmental criteria. However, mud-dominated sediments had higher levels than sand-dominated sedi ments. Exposure time followed the order of HD>GmS≥BR>GnS, influencing sediment temperature dynamics. Dur ing summer, HD showed the largest daily peak difference between air and sediment temperatures owing to longer than average exposure. Meanwhile, GnS exhibited the smallest variation. Benthic macrofaunal communities showed 35% similarity between HD and BR, located in the inner and outer bays, respectively. In contrast, GnS and GmS pre sented distinct regional differences. These findings highlight the importance of understanding the abiotic and biotic factors shaped by dominant sediment types for tidal clam farms sustainable management.
Benthic environment, Clam farm management, Mud, Sand, Tidal flat