Ballast-water microphytoplankton diversity and survivability from international ships berthed at ulsan and Pyeongtaek Ports, Korea
- Ballast-water microphytoplankton diversity and survivability from international ships berthed at ulsan and Pyeongtaek Ports, Korea
- Baek, S.H.; Jang, M.C.; Jang, P.G.; Shin, K.
- KIOST Author(s)
- Baek, Seung Ho(백승호); Jang, Pung Guk(장풍국); Shin, Kyoungsoon(신경순)
- In order to assess the survival success of microphytoplankton species in ship ballast water, we examined microphytoplankton diversity from international commercial ships berthed at Ulsan and Pyeongtaek Ports, Korea, and also subjected them to laboratory studies. The ages of ballast water in each ship ranged from 1 to 365 days. Vessels originated from coastal China (Weihai, Lianyunsang and Shanghai), Chile, and from the Yellow and Pacific Oceans. The numbers of species and phytoplankton standing crops in uploaded ballast water were significantly related to the age of ballast water. The most diverse taxonomic group was diatoms. In the laboratory study, the value of in vivo fluorescence in M/V Spring Lyra gradually increased with increasing nutrients such as nitrate and phosphate. Phytoplankton in new (9 days), medium (31 days) and old (365 days) ballast water successfully survived under typical nutrient condition of port water and F/2 medium at 15°C and 20°C, whereas phytoplankton in ballast water treatment did not survive, regardless of optimal temperature. Colonization process was dominated by diatoms; Skeletonema coastatum for M/V Spring Lyra, Thalassiosira pseudonana and Thalassiosira for M/V Han Yang, Thalassiosira pacifica and Odontella aurita for M/V Modern Express, and Chaetoceros pseudocurvisetus and Pseudo-nitzschia seriata for M/V Asian Legend. The successful establishment of non-native species was also related to nutrient richness. Our laboratory design can be applied as a practical tool to assess the survivability of invasive microphytoplankton introduced into local waters of Ulsan and Pyeongtaek.
- Ocean and Polar Research, v.33, no.2, pp.113 - 125, 2011
- ballast water; colonization; invasive species; nutrient cycling; phytoplankton; salinity; species diversity; survival; taxonomy; viability; water temperature; Kyonggi; Pyongtaek; South Korea; Ulsan [South Korea]; Bacillariophyta; Chaetoceros pseudocurvisetus; Odontella aurita; Pseudo-nitzschia; Pseudo-nitzschia seriata; Skeletonema; Thalassiosira; Thalassiosira pacifica; Thalassiosira pseudonana
- Ballast water; Nutrient levels; Phytoplankton viability; Salinity; Temperature
- Related Researcher
Marine Ecology,Marine Environment,HABs,해양생태,해양환경,적조
- Files in This Item:
There are no files associated with this item.
Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.