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EPA New England Regional Laboratory (Office of Environmental Measurement and Evaluation)

Biological Laboratory Services

Aquatic Toxicity Testing

Photo of tissue processing for contaminant analysis.Acute (short-term) and chronic (long-term) warm and cold water toxicity testing performed using single or multiple species that inhabit the water column such as:

  • Water fleas (Daphnids)
  • Fathead minnows
  • Brook Trout
  • Rainbow Trout

Testing is performed on effluent, ambient surface water, pore water and elutriate.

Sediment Toxicity Testing

Acute(short-term) and chronic(long-term) toxicity testing involving aquatic macro-invertebrates that inhabit the upper areas of sediments found in ponds, lakes, rivers and streams. These organisms include:

  • Non-biting midgefly larvae (Chironomus sp.)
  • Amphipods (Hyalella)

Microtox Toxicity Testing

Toxicity testing involving the exposure of luminescing bacteria to aqueous and solid media. The amount of luminescence is related to the stress of the exposure.

Main Biology Laboratory

  • Biological Sciences reference materials
  • General microscopy
  • Teaching/education

Tissue Processing

Fish tissue processing /sample preparation includes:

  • Physical measurement of individual fish for length and sexing
  • Whole fish filleted, skinned, and scaled
  • Scales, otoliths or spines removed for aging
  • Filet and offal tissue prepared for contaminant analysis

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