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초록· 키워드
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In order to understand food sources-metabolism for the pacific oyster (Crassostrea gigas), the stable isotope ratios of carbon (δ13C) and nitrogen (δ15N) of its gut, gill, and muscle as well as potential food sources (particulate organic matter, sedimentary organic matter, benthic microalgae, seagrass detritus) were determined in Dongdae Bay. Average δ13C and δ15N values reflect that oysters primarily fed on sedimentary organic matter as opposed to suspended organic matter during summer and winter seasons. However, the relatively enriched 15N values of particulate organic matter (>250 μm) and sedimentary organic matter in the summer may be due to the photosynthetic incorporation of 15N-enriched nitrogen (DIN) or the spawning events of bivalves. Specific oyster tissues (gut, gill, and muscle) revealed different metabolic pathways, which were determined through analysis of δ13C and δ15N in each organ. The present results suggest the determination of carbon and nitrogen stable isotopes to be a useful approach in ecological research related to the food sources- metabolism of Crassostrea gigas.
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참고문헌 (26)
참고문헌 신청
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Breese WP / 1975 / Hatchery manual for the Pacific oyster. Oreg, State Univ. Sea Grant Publ, ORE54- 4-75-002
Carabel S / 2006 / An assessment of sample processing methods for stable isotope analyses of marine food webs / J. Exp. Mar. Biol. Ecol. 336 : 254 ~ 261
Clark KR / 1994 / Change in marine communities: an approach to statistical analysis and interpretation / Plymouth marine laboratory : 188 ~
Boesch DF / 1981 / Responses to stress in marine benthic communities. In Stress effect of natural ecosystems / John Wiley and sons : 179 ~ 200
Breese WP / 1975 / Hatchery manual for the Pacific oyster. Oreg, State Univ. Sea Grant Publ, ORE54- 4-75-002
Carabel S / 2006 / An assessment of sample processing methods for stable isotope analyses of marine food webs / J. Exp. Mar. Biol. Ecol. 336 : 254 ~ 261
Clark KR / 1994 / Change in marine communities: an approach to statistical analysis and interpretation / Plymouth marine laboratory : 188 ~
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