Articles | Volume 17, issue 22
https://doi.org/10.5194/bg-17-5489-2020
https://doi.org/10.5194/bg-17-5489-2020
Research article
 | 
14 Nov 2020
Research article |  | 14 Nov 2020

The effects of decomposing invasive jellyfish on biogeochemical fluxes and microbial dynamics in an ultra-oligotrophic sea

Tamar Guy-Haim, Maxim Rubin-Blum, Eyal Rahav, Natalia Belkin, Jacob Silverman, and Guy Sisma-Ventura

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Cited articles

Amaral-Zettler, L. A., McCliment, E. A., Ducklow, H. W., and Huse, S. M.: A method for studying protistan diversity using massively parallel sequencing of V9 hypervariable regions of small-subunit ribosomal RNA genes, PloS one, 4, e6372, https://doi.org/10.1371/journal.pone.0006372, 2009. 
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Angel, D. L., Edelist, D., and Freeman, S.: Local perspectives on regional challenges: jellyfish proliferation and fish stock management along the Israeli Mediterranean coast, Reg. Environ. Change, 16, 315–323, 2016. 
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Attrill, M. J., Wright, J., and Edwards, M.: Climate-related increases in jellyfish frequency suggest a more gelatinous future for the North Sea, Limnol. Oceanogr., 52, 480–485, 2007. 
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The availability of nutrients in oligotrophic marine ecosystems is limited. Following jellyfish blooms, large die-off events result in the release of high amounts of nutrients to the water column and sediment. Our study assessed the decomposition effects of an infamous invasive jellyfish in the ultra-oligotrophic Eastern Mediterranean Sea. We found that jellyfish decomposition favored heterotrophic bacteria and altered biogeochemical fluxes, further impoverishing this nutrient-poor ecosystem.
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