Increased Chlorophyll Levels in the Southern Caspian Sea Following an Invasion of Jellyfish

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2008-01-01

Author

Kıdeyş, Ahmet Erkan
Elif, Eker-Develi
Mélin, Frédéric
Doug, Beare

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A significant correlation was observed between satellite derived chlorophyll a (Chl a) concentrations and the biomass of the invasive comb jellyfish Mnemiopsis leidyi in the southern Caspian Sea. By consuming the herbivorous zooplankton, the predatory ctenophore M. leidyi may have caused levels of Chl a to rise to very high values (∼9 mg m−3) in the southern Caspian Sea. There might also be several other factors concurrent with predation effects of M. leidyi influencing Chl a levels in this region, such as eutrophication and climatic changes which play major roles in nutrient, phytoplankton, and zooplankton variations. The decrease in pelagic fishes due to overfishing, natural, and anthropogenic impacts might have provided a suitable environment for M. leidyi to spread throughout this enclosed basin.

URI

https://hdl.handle.net/11511/30398

Journal

Research Letters in Ecology

DOI

https://doi.org/10.1155/2008/185642

Collections

Graduate School of Marine Sciences, Article

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Citation Formats

A. E. Kıdeyş, E.-D. Elif, F. Mélin, and B. Doug, “Increased Chlorophyll Levels in the Southern Caspian Sea Following an Invasion of Jellyfish,” Research Letters in Ecology, pp. 1–4, 2008, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/30398.