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Changes in Benthic Macrofauna of the Saemangeum Tidal Flat as Result of a Drastic Tidal Reduction
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  • Journal title : Ocean and Polar Research
  • Volume 30, Issue 4,  2008, pp.485-495
  • Publisher : Korea Institute of Ocean Science & Technology
  • DOI : 10.4217/OPR.2008.30.4.485
 Title & Authors
Changes in Benthic Macrofauna of the Saemangeum Tidal Flat as Result of a Drastic Tidal Reduction
Koo, Bon-Joo; Shin, Sang-Ho; Lee, Seok;
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Tidal ranges of inner Saemangeum were largely reduced after the final dyke enclosure, resulting in the former tidal flats becoming either permanently exposed, still influenced by changing tide, or permanently submerged. The effect of reduced tidal range on survival and population stability of tidal flat macrofauna were investigated at three shifted habitats after the dyke completion. At the exposed area, several species survived for 80 days after the dyke enclosure. However, within 120 days, all macrofauna died off due to the elevated temperature during summer. At the intertidal area, some species were maintained until 170 days after the dyke enclosure with a large decrease of the faunal abundance. Species of the submerged area were seen to be more tolerant of the changed environments. The opportunistic species, such as Sinocorophium sinensis, Theora fragilis and Pseudopolydora Kempi, were massively introduced into the submerged area after the dyke enclosure, in which the benthic ecosystem was severely disturbed.
Macrofauna;survival;dyke enclosure;tidal reduction;Saemangeum tidal flat;
 Cited by
새만금 4호 방조제 연결 후 군산갯벌 대형저서동물군집 변화,구본주;신상호;우한준;김은수;제종길;

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