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논문 기본 정보

자료유형
학술저널
저자정보
강진욱 (애일) 이대균 (인천대학교) 이상철 (인천대학교) 심민석 (인천대학교) 배양섭 (인천대학교)
저널정보
한국환경과학회 한국환경과학회지 한국환경과학회지 제34권 제3호
발행연도
2025.3
수록면
147 - 159 (13page)
DOI
10.5322/JESI.2025.34.3.147

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초록· 키워드

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Amphibians are key biological components of ecosystems, playing vital roles in maintaining ecological balance. Despite their ecological significance, conservation efforts remain insufficient. We investigated heavy metal bioaccumulation in amphibians to provide fundamental data for habitat conservation and environmental assessment. Soil and water samples from Gangneung, Yeongwol, Wonju, and Jeju were analyzed for their heavy metal contents. Pelophylax nigromaculatus specimens from these regions were collected, and heavy metal concentrations in their liver and kidney tissues were determined. Zinc was the most abundant metal in all soils, and cadmium was the least abundant. Except for zinc, heavy metals were undetectable in the water, indicating minimal water pollution. Zinc showed the highest accumulation in the kidneys of P. nigromaculatus across all regions, whereas their livers predominantly accumulated zinc or copper. Correlation analysis revealed a strong positive relationship between snout-vent length (SVL) and body weight. Liver nickel levels positively correlated with zinc levels, whereas kidney nickel levels negatively correlated with SVL and body weight. ANOVA indicated significant regional differences, with Yeongwol showing notably higher arsenic levels in the kidneys. In a random forest analysis conducted by region, with SVL, body weight, and sex as independent variables, SVL showed relatively high importance, and sex and region emerged as significant factors for some heavy metals. The highest bioaccumulation levels observed in Gangneung and Wonju suggest that these regions have been exposed to highest contamination. This study contributes to amphibian conservation and pollution management by providing insights into heavy metal accumulation patterns in P. nigromaculatus.

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Abstract
1. 서론
2. 재료 및 방법
3. 결과
4. 고찰
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