Disruptive synergism: The Co-occurrence of scyphozoan Pelagia noctiluca (Forsskål, 1775) swarms with green tide-causing dinoflagellate Noctiluca scintillans (Macartney) Kofoid & Swezy, 1921

IF 2.1 3区地球科学 Q2 OCEANOGRAPHY Continental Shelf Research Pub Date : 2025-02-24 DOI:10.1016/j.csr.2025.105447

Alfisa Siddique, Naveen Sagar Garbhapu, V.V.S.S. Sarma

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Abstract

The swarming behavior of certain scyphozoan clades, such as Pelagia noctiluca (Forskål, 1775), highlights an evolutionary advantage. These adaptations promote survival and reproductive success, resulting in mass occurrences. P. noctiluca, notorious for its ecological disruption and harmful stings, swarms in response to nutrient availability. This study is the first to document the co-occurrence of a swarm of P. noctiluca (120–180 ind. m⁻³) and a bloom of Noctiluca scintillans (Macartney) Kofoid & Swezy, 1921 (2.68 x 10³-4.32 × 10³ cells L⁻¹) in the Bay of Bengal, Indian Ocean. The study suggests that N. scintillans grazes on phytoplankton in nutrient-rich waters due to reduced competition from P. noctiluca's opportunistic feeding on zooplankton. This interaction gives N. scintillans a competitive edge, allowing both species to co-exist and significantly impact the marine ecosystem. The proliferation of N. scintillans, supported by favorable conditions, is intertwined with P. noctiluca's feeding dynamics, posing significant ecological and economic challenges. Continuous monitoring is essential to understand the swarming and migration patterns of P. noctiluca in the Indian Ocean, as their outbreaks indicate a broader ecosystem shift influenced by climate change and altered prey availability.

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来源期刊

Continental Shelf Research 地学-海洋学

CiteScore

4.30

自引率

4.30%

发文量

136

审稿时长

6.1 months

期刊介绍： Continental Shelf Research publishes articles dealing with the biological, chemical, geological and physical oceanography of the shallow marine environment, from coastal and estuarine waters out to the shelf break. The continental shelf is a critical environment within the land-ocean continuum, and many processes, functions and problems in the continental shelf are driven by terrestrial inputs transported through the rivers and estuaries to the coastal and continental shelf areas. Manuscripts that deal with these topics must make a clear link to the continental shelf. Examples of research areas include: Physical sedimentology and geomorphology Geochemistry of the coastal ocean (inorganic and organic) Marine environment and anthropogenic effects Interaction of physical dynamics with natural and manmade shoreline features Benthic, phytoplankton and zooplankton ecology Coastal water and sediment quality, and ecosystem health Benthic-pelagic coupling (physical and biogeochemical) Interactions between physical dynamics (waves, currents, mixing, etc.) and biogeochemical cycles Estuarine, coastal and shelf sea modelling and process studies.