Publikationsdatum:
2022-05-25
Beschreibung:
Author Posting. © The Author(s), 2014. This is the author's version of the work. It is posted here by permission of Springer for personal use, not for redistribution. The definitive version was published in Journal of Oceanography 71 (2015): 115-124, doi:10.1007/s10872-014-0268-y.
Beschreibung:
Typhoons are a common feature of summer and autumn months in the East China Sea. These events often promote phytoplankton growth in surface waters as a result of upwelling and transport of nutrients, but their effects on sub-surface waters and ecosystems are little known. Furthermore, biological studies tend to focus on phytoplankton (using chlorophyll a assays), rather than on heterotrophic zooplankton. Indeed, measurements of biological and physicochemical changes induced by the storms are difficult to perform and risky, using standard shipboard sampling techniques. Using a camera mounted on an underwater, cabled observatory system in shallow coastal waters of Okinawa, Japan, we collected the first continuous, in-situ observations of the near-bottom, mesoplankton community during a series of typhoons. An increase in diatoms and radiolarians was found during all typhoons, whereas the response of larger zooplankton groups was variable between typhoons. A bloom of Trichodesmium cyanobacteria and diatoms was seen after a series of typhoons, while the total chlorophyll a concentration remained nearly unchanged at the sampling location. These findings shed new light on short-term responses of sub-surface ecosystems during typhoons.
Beschreibung:
This work was funded by the Special Framework budget, Okinawa Promotion for Education and Research Project awarded to OIST for the 2012 fiscal year.
Beschreibung:
2015-12-30
Schlagwort(e):
Typhoon
;
OCTOPUS cabled observatory
;
Trichodesmium
;
Benthic resuspension
;
Mesozooplankton
Repository-Name:
Woods Hole Open Access Server
Materialart:
Preprint
Format:
application/pdf
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