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Spatial distribution of dinoflagellate resting cysts in Yellow Sea surface sediments

  • Hwang, Choul-Hee (Fish Research Team, Marine Eco-Technology Institute Co., Ltd.) ;
  • Kim, Keun-Yong (Department of Marine Bio-materials and Aquaculture, Pukyong National University) ;
  • Lee, Yoon (West Sea Fisheries Research Institute, National Fisheries Research & Development Institute) ;
  • Kim, Chang-Hoon (Department of Marine Bio-materials and Aquaculture, Pukyong National University)
  • 투고 : 2011.01.15
  • 심사 : 2011.02.26
  • 발행 : 2011.03.15

초록

Yellow Sea surface sediment samples collected on October 15-31, 2003 were analyzed using the palynological process to investigate the spatial distribution of dinoflagellate resting cysts. The sampling areas comprised four latitudinal transects, the northernmost of which was located off the Shandong Peninsula, China and the southernmost off Jeju Island, Korea. Each transect line was composed of six to nine stations, spanning the distance between the Chinese and Korean coasts. Twenty-five different types of dinoflagellate cysts were identified. Gonyaulax scrippsae, Alexandrium spp. (ellipsoidal type), and G. spinifera were the most dominant at all stations surveyed. Dinoflagellate cysts belonging to the Gonyaulacales comprised over 50% of all cysts collected. The latitudinal distribution trend showed that cyst concentrations along the two middle transects were much higher than those along the two northern and southern transects. Cyst concentrations in the offshore central areas reached their highest values within each transect and gradually decreased toward the Chinese and Korean coasts. Overall, cyst concentrations were markedly elevated in the offshore central Yellow Sea areas and gradually decreased outward in all four directions. This concentric cyst distribution pattern was consistent with the hydrographic features of the Yellow Sea, such as circular current systems, sedimentary properties, and water depth.

키워드

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피인용 문헌

  1. Dinoflagellate cyst distribution in recent sediments along the south-east coast of India**The financial support for this work was received from the Ministry of Earth Sciences (MoES) under the Indian XBT programme the Ballast Water Management programme funded by the Directorate General of Shipping India. vol.55, pp.4, 2013, https://doi.org/10.5697/oc.55-4.979
  2. Distribution of Dinoflagellate Cysts in Surface Sediments of the Coastal Areas around Jeju Island, Korea vol.19, pp.4, 2016, https://doi.org/10.7846/JKOSMEE.2016.19.4.310
  3. Biological Oceanographic Characteristics by the Dinoflagellate Cyst Assemblages on the Surface Sediments in the Korea Coastal Waters (KCW) vol.20, pp.3, 2017, https://doi.org/10.7846/JKOSMEE.2017.20.3.180
  4. Marine Bio-environmental Characteristics with the Distributions of Dinoflagellate Cyst Assemblages in the Ulsan Coastal Waters (UCW) vol.35, pp.3, 2017, https://doi.org/10.11626/KJEB.2017.35.3.361
  5. Dinoflagellate Cysts of the Genus Alexandrium Halim, 1960 (Dinophyceae: Gonyaulacales) in Recent Sediments from the Northwestern Pacific Ocean vol.45, pp.6, 2011, https://doi.org/10.1134/s1063074019060075