지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
Mesodinium rubrum is a cosmopolitan ciliate that often causes red tides. Predation by heterotrophic protists is a critical factor that affects the population dynamics of red tide species. However, there have been few studies on protistan predators feeding on M. rubrum. To investigate heterotrophic protists grazing on M. rubrum, we tested whether the heterotrophic dinoflagellates Gyrodiniellum shiwhaense, Gyrodinium dominans, Gyrodinium spirale, Luciella masanensis, Oblea rotunda, Oxyrrhis marina, Pfiesteria piscicida, Polykrikos kofoidii, Protoperidinium bipes, and Stoeckeria algicida, and the ciliate Strombidium sp. preyed on M. rubrum. G. dominans, L. masanensis, O. rotunda, P. kofoidii, and Strombidium sp. preyed on M. rubrum. However, only G. dominans had a positive growth feeding on M. rubrum. The growth and ingestion rates of G. dominans on M. rubrum increased rapidly with increasing mean prey concentration < $321ngCmL^{-1}$, but became saturated or slowly at higher concentrations. The maximum growth rate of G. dominans on M. rubrum was $0.48d^{-1}$, while the maximum ingestion rate was 0.55 ng C $predator^{-1}d^{-1}$. The grazing coefficients by G. dominans on populations of M. rubrum were up to $0.236h^{-1}$. Thus, G. dominans may sometimes have a considerable grazing impact on populations of M. rubrum.
목차
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참고문헌 (57)
참고문헌 신청
Barber, R. T. / 1981 / Coastal Upwelling. Coastal and Estuarine Sciences 1 / American Geophysical Union :366~371
Berge, T. / 2008 / Prey size spectrum and bioenergetics of the mixotrophic dinoflagellate Karlodinium armiger / Aquat. Microb. Ecol 50:289~299
Blossom, H. E. / 2012 / Toxic mucus traps: a novel mechanism that mediates prey uptake in the mixotrophic dinoflagellate Alexandrium pseudogonyaulax / Harmful Algae 17:40~53
Bouley, P. / 2006 / Ecology of a highly abundant, introduced cyclopoid copepod in a temperate estuary / Mar. Ecol. Prog. Ser 324:219~228
Buskey, E. J. / 1993 / Locomotory patterns of microzooplankton: potential effects on food selectivity of larval fish / Bull. Mar. Sci 53:29~43
Berge, T. / 2008 / Prey size spectrum and bioenergetics of the mixotrophic dinoflagellate Karlodinium armiger / Aquat. Microb. Ecol 50:289~299
Blossom, H. E. / 2012 / Toxic mucus traps: a novel mechanism that mediates prey uptake in the mixotrophic dinoflagellate Alexandrium pseudogonyaulax / Harmful Algae 17:40~53
Bouley, P. / 2006 / Ecology of a highly abundant, introduced cyclopoid copepod in a temperate estuary / Mar. Ecol. Prog. Ser 324:219~228
Buskey, E. J. / 1993 / Locomotory patterns of microzooplankton: potential effects on food selectivity of larval fish / Bull. Mar. Sci 53:29~43
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