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미역 (Undaria pinnatifida) 배우체의 생존 및 상대성장률을 이용한 dichlofluanid의 독성영향 평가

Assessment of the toxic effects of dichlofluanid using survival and relative growth rate on brown alga Undaria pinnatifida

심보람|박윤호|이주욱|황운기
한국환경생물학회 (Korean Society Of Environmental Biology)|2023.12|환경생물 (Korean Journal of Environmental Biology)|제41권 제4호|pp. 427-438

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참고문헌

키워드

gametophyteseaweedUndaria pinnatifidaAntifouling agentdichlofluanid

초록

Dichlofluanid는 해양환경 내 빠르게 분해되지만 농약 및 방오제로 사용되고 퇴적물에 쉽게 축적되어 지속 적으로 해양환경으로 유입되고 있다. Dichlofluanid는 다양한 해양생물에게 독성영향을 미치는 것으로 알려져 있지만 해조류에 대한 독성연구는 충분히 보고되지 않았다. 따라서 우리나라의 주요 양식생물인 미역 (Undaria pinnatifida) 암배우체의 생존율 및 상대성장률을 이용하여 dichlofluanid의 독성영향을 분석하였다. U. pinnatifida의 암배우체를 dichlofluanid (0, 1, 2, 4, 8, 16, 32 mg L-1)에 노출하였고 암배우체 생존율의 무영향농도 (NOEC), 최소영향농도 (LOEC), 반수치사농도 (LC50)는 1, 2, 10.82 (8.87~13.23) mg L-1, 상대성장률의 NOEC, LOEC, 반수영향농도 (EC50)은 1, 2, 6.58 (6.03~7.17) mg L-1로 분석되었다. 본 연구결과는 dichlofluanid에 대한 U. pinnatifida 암배우체의 독성영향을 평가하기 위한 중요한 참고자료로 활용될 것으로 기대된다.

Abstract

Biocide dichlofluanid breaks down quickly and accumulates easily in sediment, potentially causing a persistent impact on various marine organisms. We analyzed the potential toxicity of dichlofluanid on major aquaculture species in Korea, Undaria pinnatifida. Female gametophytes of U. pinnatifida were exposed to dichlofluanid at concentrations of 0, 1, 2, 4, 8, 16, and 32 mg L-1, and their survival and relative growth rate were analyzed. The no observed effect concentration (NOEC), lowest observed effect concentration (LOEC), and median lethal concentration (LC50) for female gametophyte survival were determined as 1, 2, and 10.82 (95% CI: 8.87-13.23) mg L-1, respectively. The NOEC, LOEC, and median effective concentration (EC50) for relative growth rate were 1, 2, and 6.58 (95% CI: 6.03-7.17) mg L-1, respectively. Female gametophytes of U. pinnatifida were expected to experience toxic effects at concentrations above 2 mg L-1 of dichlofluanid. These research findings are expected to serve as important reference data for evaluating the toxicity effects of U. pinnatifida in its early life stages when exposed to dichlofluanid.

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관련 논문AI추천

Chlorothalonil이 미역 (Undaria pinnatifida) 배우체의 생존 및 상대성장률에 미치는 영향박윤호, 심보람, 이주욱, 황운기한국환경생물학회 · 환경생물2023 · 제41권 제3호해산 로티퍼 (Brachionus plicatilis)의 생존율 및 개체군 성장률을 이용한 신방오물질 (Chlorothalonil)의 독성영향최훈, 허승, 권기영, 박윤호, 윤성진, 이주욱, 황운기한국환경생물학회 · 환경생물2021 · 제39권 제3호수온, pH 및 염분의 조합된 환경인자가 대형 갈조류 3종의 초기 생활사에 미치는 영향Yoon Sung Jin한국해양과학기술원 · Ocean and Polar Research2025 · 제47권 해산로티퍼(Brachionus plicatilis)의 생존 및 개체군 성장률을 이용한 신방오도료(Zinc undecylenate)의 독성평가최훈, 박나영, 박윤호, 양준용, 이승민, 이주욱, 장수정, 최윤석, 황운기한국환경생물학회 · 환경생물2018 · 제36권 제3호해산규조류 (Skeletonema costatum)의 개체군 성장률을 이용한 phenanthrene와 zinc undecylenate의 독성평가이윤, 최훈, 허승, 박윤호, 이주욱, 황운기한국환경생물학회 · 환경생물2019 · 제37권 제3호둥근성게 (Mesocentrotus nudus)의 수정 및 배아 발생률에 미치는 신방오도료 (Diuron, Irgarol)의 독성영향최훈, 허승, 박윤호, 이주욱, 황운기한국환경생물학회 · 환경생물2020 · 제38권 제2호

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