The Impact of Sand Addition to An Intertidal Area for the Development of the Manila Clam, Ruditapes philippinarum Habitat on Benthic Community Structure - the case of an sandbank in Gonam-myeon, Taean-gun -

Abstract

This study was conducted to investigate the impact of sand addition to an intertidal for the development of the Manila clam habitat on benthic community structure. For this, we focused on the spatio-temporal changes in the surface sediment condition and benthic community structure before and after the event. Study site was an sandbank in Gonam-myeon, Taean-gun where sand added to on July 2010. We set three stations at each of sand adding area (experimental plot) and non sand-adding area (control plot) and did sampling works ten times from June 2010 to October 2011. Directly after the event, surface sediments changed to very coarse sand, but the state was not maintained over four months because of seasonal sedimentation and finally got back to very fine sand in eight months. The number of species and density were temporarily reduced right after the event and crustacean species such as Apocorophium acutum, Photis sp. were most negatively affected by the event. However, the number of species recovered from the reduction in three months and density did in four months due to the recolonization by the existing species and species in the vicinity of the plot. During the study period, dominant

The impact of sand addition to an intertidal area for the development of the Manila clam, Ruditapes philippinarum habitat on benthic community structure (the case of Ojjeom tidal flat in Gonam-myeon, Taean-gun)

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