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Short‐ and long‐term sediment toxicity test methods with the amphipod Grandidierella japonica
Nipper, M.G.; Greenstein, D.J.; Bay, S.M. (1989). Short‐ and long‐term sediment toxicity test methods with the amphipod Grandidierella japonica. Environ. Toxicol. Chem. 8(12): 1191-1200. https://dx.doi.org/10.1002/etc.5620081212
In: Environmental Toxicology and Chemistry. Setac Press: New York. ISSN 0730-7268; e-ISSN 1552-8618
Peer reviewed article  
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Trefwoorden
    Grandidierella japonica Stephensen, 1938 [WoRMS]
    Marien/Kust
Auteurs  Top 
  • Nipper, M.G.
  • Greenstein, D.J.
  • Bay, S.M.
Abstract
    Methods are described for conducting flow-through sediment toxicity tests with the marine amphipod Grandidierella japonica. Short-term (10-d) exposures were conducted at 15°C in 1-liter beakers containing a 2-cm layer of sediment and 700 ml overlying seawater. Long-term (28-d) tests were conducted in 1-liter beakers at 19°C with the weekly addition of food to the test chambers. Both methods were used to measure the toxicity of sediments from five locations in southern California. These sites included highly contaminated areas adjacent to large municipal wastewater outfalls and within industrialized harbors.Both test methods were sensitive to levels of contamination found in the field, but produced different patterns of effects. Short-term mortality was greatest in amphipods exposed to the harbor sediments, while long-term exposure produced the greatest reductions in survival and growth at the Los Angeles County Outfall site. Amphipod survival was unaffected by variations in sediment grain size, while this characteristic appeared to have an important effect on growth.
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