유기오염물질의 복합독성이 요각류 사망률에 미치는 영향
Compound Effect of Persistent Organic Pollutants on the Mortality of Marine Copepods
1
조회
0
다운로드
0
인용
0
참고문헌
초록
Abstract
This study investigated primarily the toxic effects of bis(tributyltin)oxide (TBT) and DDT (Dichlorodiphenyltrichloroethane) on the mortality of adult Acartia omorii and barnacle nauplii as well as the hatching rate of A. omorii. Subsequently, compound effects of TBT and DDT on the mortality of immature copepods were tested in order to assess whether or not synergistic influence existed in the mixture of sublethal concentration of two pollutants. Mortality of adult A. omorii increased as exposure concentration of DDT increased in the range of from 0.0001 to 1 ppm. Egg hatching rate of the copepod showed no distinctive difference in the range between 0.1 and 10 ppm, while barnacle nauplii showed abnormal motility of their appendages in the range of 0.0001 to 1 ppm. Mortality of adult A. omorii increased as TBT concentration increased within the range of 1 and 10 ppb, whereas egg hatching rate of the copepod showed no linear response to the same exposure range. Moreover, copepod nauplii were almost motionless even though copepod eggs hatched under the exposure condition of TBT (0~10 ppb) and DDT (0~10 ppm), respectively, suggesting that the nauplii are hard to develop into adult stage. On the basis of the sublethal concentration less than the 24-h LC50, 0.001 ppm (DDT) and 2 ppb (TBT) were selected to confirm the compound effects of two pollutants on the mortality of immature copepods. Mortality of immature copepods under the condition of mixture of the two pollutants was higher than that in the single exposure condition. This result seems to indicate that synergistic effects of sublethal toxicants can make a more hazardous effect on the survival of immature copepods even though the concentration of single toxicant is not lethal to copepods in the marine environment.
참고문헌 (32)
- "TBT의 노출에 따른 넙치 Paralichthys olicaceus의 생존 성장 및 산소소비의 변화", 17, pp.219~224 (2002)
- "제주도 연안 해양환경 중에서 유기인계 농약의 잔류", 17, pp.341~346 (2002)
- "내분비계 장애물질이 유용수산자원에 미치는 영향에 관한 연구", pp.331~ (2001), 해양수산부
- "Organochlorine pesticide and trace metal monitoring of Russian rivers flowing to the Arctic Ocean: 1990-1996.", 43, pp.71~85 (2001)
- "DDT in zebra mussels from Lake Maggiore Level of contamination and endocrine disruptions", 69, pp.175~188 (2004)
- "Acute toxicity of tributyltin to selected Chesapeake Bay fish and invertebrates", 22, pp.1027~1032 (1998)
- "Development and Standardization of an Acute Toxicity Test with the Freshwater Anostracan Crustacean Strptocephalus proboscideus Progress in Standardizatioin of Aquatic Toxicity Tests", pp.37~55 (1993), Lewis Publishers
- "Trends from April to July and the influence of lipids and trophic transfer", 43, pp.93~101 (2001)
- "Effect of pentachlorophenol on predator-prey interaction of two rotifers", 37, pp.271~282 (1997)
- "Tributyltin release from harbour sediments-modelling the influence of sedimentation bio-irrigation and diffusion using data from Bremerhaven", 50, pp.980~992 (2005)
- "Importance of feeding direct uptake from seawater and transfer from generation to generation in the accumulation of an organochlorine", pp.101~119 (1981)
- "Mortality of marine planktonic copepods: Global rates and patterns.", 230(`), pp.195~209 (2002)
- "Zooplankton growth rates: The influence of size in nauplii of tropical marine copepods", 132, pp.87~96 (1998)
- "Effects of tributyltin on a coastal North Sea plankton community in enclosures", 17, pp.1840~1847 (1998)
- "Toxicity of persistent organic pollutants in zooplankton and influence on their viability", 22, pp.1~10 (2004)
- "The toxic effects of mysid Neomysis awatschensis exposed to organotin", 17, pp.357~362 (2002)
- "A risk assessment approach to contaminants in Port Curtis", 51, pp.448~458 (2005)
- "Effect of dispersants on zooplankton mortality in Korea", 96, pp.269~275 (1997)
- "Introduction to Environ- mental Toxicology Impacts of Chemicals upon Ecological Systems", pp.328~ (1995), CRC Press
- "DDT reduced testosterone and aromatase activity via ER receptor in Leydig cell", 18, pp.95~100 (2003)
- "PAH and PCB in sediments from the intertidal zone of the Bohai Sea and the Yellow Sea", 42, pp.132~136 (2001)
- "Advances in Marine Biology : The biology of calanoid copepods.", pp.710~ (1998), Academic Press
- "Contamination of French coastal waters by organotin compounds: 1997 update.", 38, pp.268~275 (1999)
- "A preliminary report of persistent organochlorine pollutants in the Yellow Sea", 50, pp.208~236 (2005)
- "Toxic effects of tri-butyl-tin and microplankton assessed by a size fractionated pollution-induced community tolerance", 40, pp.253~264 (1998)
- "Direct and indirect effects of sublethal toxicant exposure on population dynamics of freshwater rotifers", 52, pp.87~99 (2001)
- "Venugopalan", 17, pp.168~169
- "Improvements in the epifauna of the Crouch Estuary following a decline in TBT concen- trations", 42, pp.137~144 (2001)
- "Imposex in the rock shell as evidence of organotin contamination in the marine environment of Korea", 49, pp.435~451 (2000)
- "2002 TBT toxicity on the marine microalga Nannochloropsis oculata", 45, pp.177~180 (2002)
- "Imposex in the Dogwhelk due to TBT contamination Improvement at high latitudes", 40, pp.893~897 (2000)
- "Acute toxicity of Bis oxide to a marine copepod", pp.303~306 (1983)
