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标题：Blooms of Noctiluca scintillans and its Association with Thalia sp. (Salps) along Dubai Coastal Waters
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作者：Karuppaiyan Murugesan ; Ibrahim Mohammed Ibrahim Ali Juma and Shadab Alam Khan
期刊名称：Research Journal of Environmental Sciences
印刷版ISSN：1819-3412
电子版ISSN：2152-8238
出版年度：2017
卷号：11
期号：3
页码：101-107
DOI：10.3923/rjes.2017.101.107
出版社：Academic Journals Inc., USA
摘要：Background and Objective: Noctiluca scintillans ( N. scintillans ) (green dinoflagellate) blooms were spotted in significant scale at various locations along Dubai coastal water during January 2017. The investigation mainly focused on the extent of N. scintillans bloom and its association with water quality, phytoplankton and zooplankton. Materials and Methods: The phytoplankton bloom and water samples were collected from off Dry dock, South of world islands and Ras Ghantoot from Dubai coast. Further, high density of Thalia sp., known as salps (zooplankton tunicate) were recorded along the blooms of N. scintillans and remain persisted after the decline of bloom. Results: Noctiluca scintillans blooms were inhibited in the form of isolated patches of 200-300 m along sampling stations. The phytoplankton cell counts during N. scintillans bloom were 2.0-5.4×10³nos. mL¹ at different sampling stations. Nutrients analysed in water quality showed a significant reduction in nitrate-nitrogen (NO₃-N) and high values of phosphate-phosphorous (PO₄-P) at two locations during N. scintillans blooms. Elevated levels of chlorophyll a, phaeophytin and carotenoids were also evident during the bloom of N. scintillans along sampling stations. Conclusion: The study conclude that the density of Thalia sp. increased drastically when N. scintillans population decline. This further indicates Thalia sp. (salps) as an active grazer of N. scintillans .