Marine Algal Flora and Ecological Role of Eisenia bicyclis in Dokdo, East Sea, Korea&lt;sup&gt;1a&lt;/sup&gt;

Park, Seo Kyoung; Lee, J.; Heo, Jin Suk; An, Dae Sung; Lee, Haeng Pil; Choi, Han Ho

doi:10.13047/kjee.2014.28.6.613

Cited by 2 publications

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“…The macroalgal diversity of Dokdo Islets is greater than that of Ulleung Island and comparable to that of well-developed tidal flats in western Korean waters, reinforcing its status as a biodiversity hotspot [31]. Various seaweed species have been observed on the rocky bottoms of the Dokdo Islets, but these have declined recently, associated with CCA whitening [5,32,33].…”

Section: Study Sitesmentioning

confidence: 99%

In-Situ Estimates of Net Ecosystem Metabolisms in the Rocky Habitats of Dokdo Islets in the East Sea of Korea

Lee

Kim

Min

et al. 2022

JMSE

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We measured oxygen (O2) fluxes in two major shallow subtidal benthic habitats (kelp bed (KB) and bare rock (BR) covered with crustose coralline algae) of Dokdo islet in the East Sea by applying noninvasive in-situ aquatic eddy covariance (AEC). The AEC device allows time series measurements (~24 h) of three-dimensional velocity (u, v, and w components) and high-resolution dissolved O2. This allows estimation of O2 exchange flux via benthic habitats. Local flow rates and irradiance levels were found to be major factors controlling O2 exchange flux in the rocky habitats. Gross primary production rates tended to be significantly higher in KB (163 mmol O2 m–2 d–1) than in BR (51 mmol O2 m–2 d–1). The net ecosystem metabolisms were assessed as opposite types, with 8 mmol O2 m–2 d–1 in KB (autotrophy) and –12 mmol O2 m–2 d–1 in BR (heterotrophy). Our results indicate that kelp beds are important for organic carbon cycling in rocky coastal waters and that AEC application to macroalgae habitats is a useful assessment approach.

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Section: Study Sitesmentioning

confidence: 99%