선박평형수에서 유입된 독립영양생물의 생물활성

Title
선박평형수에서 유입된 독립영양생물의 생물활성
Alternative Title
Species-specific viablility of autotrophic phytoplankton in an international commercial ship"s ballast water
Author(s)
백승호; 신경순; 장민철; 현봉길; 정승원; 장풍국
KIOST Author(s)
Baek, Seung Ho(백승호)Shin, Kyoung Soon(신경순)Hyun, Bong Gil(현봉길)Jung, Seung Won(정승원)Jang, Pung Guk(장풍국)
Publication Year
2010-11-04
Abstract
This study investigated the viability of phytoplankton from international commercial ships berthed at the Ports of Ulsan and Onsan, Korea to understand the impact of environmental factors on the survival success of introduced species by ship ballast water. Although the number of species and phytoplankton viability in uploaded ballast tanks was not clearly related to the duration time of ballast water, it was dependent on ballasting region. Except for the Royal Diamond from Japan, the nutrient concentration of ship ballast water that arrived from primarily Asian countries was relatively higher than ship side port water. Also, even though phytoplankton viability in the ballast water treatment on the Royal Diamond was not observed due to lower nitrogen and phosphorus sources, re-growth availability of ballast water treatments in other vessels was relatively high. For the irradiance grade experiments on three vessels, phytoplankton growth increased with increasing irradiance. However, the phytoplankton did not respond in continuous dark conditions even with the addition of high nutrients. The Daewoo Diamond introduced several freshwater species from the Changjiang River, China that were adapted to salinities of ten to zero. Nevertheless, the centric diatom Thalassiosira pseudonana was able to tolerate a wide range of salinities (0 to 30) and its species-specific viability was suitable for colonization. The laboratory design of this study can be applied as a practical tool to assess the survival possibility of foreign phytoplankton introduced into local waters.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/28589
Bibliographic Citation
한국해양학회 추계학술대회, pp.259, 2010
Publisher
한국해양학회
Type
Conference
Language
English
Publisher
한국해양학회
Related Researcher
Research Interests

Phytoplatnkon taxonomy,Phytoplatnkon physiology,Phycosphere,식물플랑크톤 분류,식물플랑크톤 생리,식물플랑크톤, 바이러스, 박테리아 관계

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