Method for assessing the chronic toxicity of marine and estuarine sediment-associated contaminants using the amphipod Corophium volutator.

Method for assessing the chronic toxicity of marine and estuarine sediment-associated contaminants using the amphipod Corophium volutator. Research Abstract Details 

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Method for assessing the chronic toxicity of marine and estuarine sediment-associated contaminants using the amphipod Corophium volutator. Abstract Text:

A Scarlett,S J Rowland,M Canty,E L Smith,T S Galloway,

Acute sediment toxicity tests do not test key life stage events such as moulting and reproduction and therefore do not reveal the longer-term effects of contaminant exposure. A laboratory method is described for determining the chronic toxicity of contaminants associated with whole sediments. The test is conducted using neonates of the estuarine amphipod Corophium volutator at 15 degrees C, salinity 25 psu and a 12 h light:12 h dark photoperiod. The endpoints are survival and growth after 28 days and survival, growth and reproduction of amphipods upon termination of test i.e. reproduction within all control vessels (ca 75 days). The sediment chronic toxicity test was used to investigate the effects of sediments spiked with environmentally relevant preparations of slightly weathered Alaskan North Slope crude oil, including a water-accommodated-fraction (WAF) and a chemically-dispersed (Corexit 9527) WAF. Sediment oil concentrations were quantified using ultra-violet fluorescence. The amphipods exposed to chemically dispersed oil had higher mortality and lower growth rates than control-, Corexit 9527- and WAF-exposed organisms, resulting in reduced reproduction. The described method supplements the standard acute sediment test and would be particularly useful when long-term ecological effects are suspected but acute tests reveal no significant mortality. The sediment chronic test reported herein has shown that sediment that was not evidently toxic during 10-day acute tests could have population-level effects on sediment-dwelling amphipods.

Method for assessing the chronic toxicity of marine and estuarine sediment-associated contaminants using the amphipod Corophium volutator. Publishing Authors By Initials

A Scarlett,SJ Rowland,M Canty,EL Smith,TS Galloway,

For similar environment and public health: environment: meteorological factors: atmosphere: weather: sunlight: ultraviolet rays research abstracts see: environment and public health: environment: meteorological factors: atmosphere: weather: sunlight: ultraviolet rays research

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Method for assessing the chronic toxicity of marine and estuarine sediment-associated contaminants using the amphipod Corophium volutator. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Marine environmental research

VOLUME: 63

Page Numbers: 457-70

Journal Abbreviation: Mar. Environ. Res.

ISSN: 0141-1136

DAY: 4

MONTH: 01

YEAR: 2007

Method for assessing the chronic toxicity of marine and estuarine sediment-associated contaminants using the amphipod Corophium volutator. Information

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LANGUAGE: eng

NlmUniqueID: 9882895

Method for assessing the chronic toxicity of marine and estuarine sediment-associated contaminants using the amphipod Corophium volutator. Keywords Mesh Terms:

KEYWORDS: Ultraviolet Rays

MESH TERMS: analysis

Chemical & Substance for Abstract: Method for assessing the chronic toxicity of marine and estuarine sediment-associated contaminants using the amphipod Corophium volutator. Information

Substance Name: Petroleum

Registry Number: 0

Grant and Affiliation Information for Method for assessing the chronic toxicity of marine and estuarine sediment-associated contaminants using the amphipod Corophium volutator.

AFFILIATION: School of Biological Sciences, University of Plymouth, Drake Circus, Plymouth PL4 8AA, United Kingdom.

Country: England

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MEDLINETA: Mar Environ Res

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