Red tides in Masan Bay, Korea, in 2004-2005: III. Daily variations in the abundance of mesozooplankton and their grazing impacts on red-tide organisms SCIE SCOPUS

Cited 15 time in WEB OF SCIENCE Cited 17 time in Scopus
Title
Red tides in Masan Bay, Korea, in 2004-2005: III. Daily variations in the abundance of mesozooplankton and their grazing impacts on red-tide organisms
Author(s)
Kim, Jae Seong; Jeong, Hae Jin; Yoo, Yeong Du; Kang, Nam Seon; Kim, Soo Kyeum; Song, Jae Yoon; Lee, Moo Joon; Kim, Seong Taek; Kang, Jung Hoon; Seong, Kyeong Ah; Yih, Won Ho
KIOST Author(s)
Kang, Jung Hoon(강정훈)
Publication Year
2013-12
Abstract
To investigate the role of mesozooplankton in the dynamics of red tides in Masan Bay, Korea, we measured the abundance of mesozooplankton in daily samples collected from June 1, 2004 to May 31, 2005. Mesozooplankton were abundant in the winter, but rare in the summer, and had a range of abundance of 3-52,843 ind. m(-3). Similarly, both copepods and cladocerans were abundant in the winter, but rare in the summer, and had ranges of abundance of 0-48,817 ind. m(-3) and 0-10,951 m(-3). respectively. Invertebrate larvae were abundant in the fall but not in other seasons. The biomass of copepods was significantly positively correlated with salinity, dissolved oxygen, the biomass of the phototrophic dinoflagellates Heterocapsa triquetra and Prorocentrum minimum, and the biomass of the heterotrophic dinoflagellate Gyrodinium glaucum, but negatively correlated with water temperature and the biomass of heterotrophic bacteria and small algae. In addition, the biomass of cladocerans was significantly positively correlated with salinity and the biomass of euglenophytes and G. glaucum, but negatively correlated with water temperature. The biomass of invertebrate larvae was significantly positively correlated with water temperature, but negatively correlated with dissolved oxygen. These observations suggest that copepods and cladocerans may increase their populations by feeding on large phytoplankton in cold water, whereas invertebrate larvae may prefer warm water. The grazing coefficients for the copepods Acartia spp. on co-occurring Pfiesteria-like dinoflagellates (PLDs), P. minimum, Skeletonema costatum, H. triquetra, Heterosigma akashiwo, and Scrippsiella trochoidea were 0.104, 0.083, 0.042, 0.034, 0.033, and 0.030 d(-1), respectively. These results suggest that grazing by Acartia populations in Masan Bay can have a considerable impact on the populations of PLDs and P. minimum, but only a moderate impact on S. costatum, H. triquetra, S. trochoidea, and H. akashiwo. (C) 2013 Elsevier B.V. All rights reserved.
ISSN
1568-9883
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/3055
DOI
10.1016/j.hal.2013.10.010
Bibliographic Citation
HARMFUL ALGAE, v.30, pp.S102 - S113, 2013
Publisher
ELSEVIER SCIENCE BV
Subject
COPEPOD ACARTIA-TONSA; PFIESTERIA-PISCICIDA; CALANOID COPEPOD; STOECKERIA-ALGICIDA; PLANKTONIC COPEPODS; INLAND SEA; DINOFLAGELLATE; FOOD; INGESTION; GROWTH
Keywords
Cladocera; Copepod; Food web; Grazing; Harmful algal bloom; Larvae
Type
Article
Language
English
Document Type
Article
Publisher
ELSEVIER SCIENCE BV
Related Researcher
Research Interests

Biological oceanography,Zooplankton ecology,Introduction and dispersion of foreign species,생물해양학,동물플랑크톤 생리,생태,외래종 유입,확산

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