Endo rush island cooler1/18/2024 Some evidence suggests that macroalgae ecosystems can capture carbon dioxide from the environment just as effectively as seagrass, mangrove, and salt marsh ecosystems ( Hill et al., 2015 Trevathan-Tackett et al., 2015 Ortega et al., 2019 Gouvêa et al., 2020). Interest and research in carbon sequestration by vegetated coastal ecosystems are driving the development of blue carbon strategies to mitigate the effects of climate change ( McLeod et al., 2011 Siegel et al., 2021). Vegetated ecosystems are expected to play an important role in sequestering carbon. okamuranus, and the total yield of carbon captured during 2021 production season for these farms was 43,385 kg C. pinnatifida and 3.6 g C m -2 (0.034 g C m -2 d -1) was captured by C. Nevertheless, up to 14.1 g C m -2 (0.110 g C m -2 d -1) was captured by the production of U. pinnatifida in Hirota Bay and Cladospihon okamuranus at Bise Point, autotrophy was less frequently observed. We reveal that the Undaria pinnatifida farm in Matsushima Bay experience autotrophy more often than natural ecosystems, although for seaweed farms producing U. Whereas, for the degraded ecosystem in Tainoura Bay, it was -0.01 m -1. The net ecosystem production rates for the natural ecosystems in Arikawa Bay and Omura Bay were equivalent to 0.043 and 0.054 m -1, respectively. We estimated potential carbon capture rates by calculating the net ecosystem productivity from continuous recordings of dissolved oxygen concentrations under natural environmental conditions. We examine the frequency of autotrophic days and compare potential rates of carbon capture of the seaweed farms with two natural macroalgae ecosystems and one degraded site. Therefore, we present our investigation of three seaweed farms, two in northern Japan and one in southern Japan. In general, seaweed farms are expected to be highly productive, although whether they are autotrophic or heterotrophic ecosystems and hence potential exporters of carbon, is under debate. Seaweed farms are expected to play a significant role in carbon capture advocates for the expansion of seaweed farms are increasing in many countries. With evidence growing of the potential for macroalgae ecosystems to capture carbon, there is burgeoning interest in applying newfound knowledge of carbon capture rates to better understand the potential for carbon sequestration. The important role of vegetated ecosystems in the sequestration of carbon has gained strong interest across a wide variety of disciplines. 9Faculty of Fisheries, Kagoshima University, Kagoshima, Japan.8United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan.7Graduate School of Engineering and Science, University of the Ryukyus, Nishihara, Japan.6Kuroshio Biological Research Foundation, Otsuki, Japan.5Department of Chemistry, Biology and Marine Science, Faculty of Science, University of the Ryukyus, Nishihara, Japan.
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