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KMID : 1024520200290111089
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Journal of the Environmental Sciences
2020 Volume.29 No. 11 p.1089 ~ p.1098
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Isotopic Assessment of Ecological Function of a Transplanted Macroalgal Habitat (Grateloupia asiatica)
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Chun Chan-Kil
Kim Hyung-Geun
Park Hyun-Je
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Abstract
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To assess the trophic function of an artificial macroalgal habitat, we compared the stable carbon and nitrogen isotope ratios of two amphipods (Caprella sp. and Ampithoe sp.) and their potential food sources in a transplanted macroalgal habitat (Grateloupia asiatica) with those in a natural habitat . There were no significant differences in the isotopic values of both consumers and their potential food sources between the transplanted and natural habitats. Such isotopic similarities between the two sites indicate a comparable resource consumer relationship. Additionally, our results showed similar isotopic niche areas and high dietary overlap (>65%) of the two amphipods between the transplanted and natural sites, suggesting that the transplanted habitat plays ecological roles similar to the natural habitat. Overall, isotopic assessment can provide information on the trophic function of diverse transplanted macroalgal habitats and improve post-monitoring efforts in the management of artificial ecosystems.
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KEYWORD
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Isotopic assessment, Transplantation, Grateloupia asiatica, Stable isotopes, Amphipods, Isotopic niche areas
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