Pacific EcoRisk | Environmental Consulting and Testing

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		Aquatic Testing/ Chemical Testing/ Stormwater Testing

		NPDES/Whole Effluent Testing (WET)

		Development of Ambient Water Quality Criteria…

		Sediment Testing

		Dredge Materials Evaluations

		Toxicity Identification Evaluation (TIEs) / Toxicity Redution Evaluations (TREs)

		Water Column and Sediment Tests Offered

SERVICES

TOXICITY & BIOACCUMULATION TESTING


	Water Column and Sediment Tests Offered

Partial List of Aquatic/NPDES Toxicity Testing Species:

Acute Toxicity - Freshwater/Estuarine

Invertebrates:
	Ceriodaphnia dubia or Daphnia magna - 48 hr % survival

	Hyalella azteca or Chironomus tentans - 96 hr % survival

Fish:

	Fathead Minnow / Rainbow Trout / 3-Spine Stickleback - 96 hr % survival

Acute Toxicity - Estuarine/Marine

Invertebrates:
	Mysidopsis bahia / Holmesimysis costata / Neomysis mercedis - 96 hr % survival

	Eohaustorius estuarius - 96 hr % survival

Fish:

	Inland Silversides (Menidia beryllina) - 96 hr % survival

	Sheepshead Minnow (Cyprinodon variegatus) - 96 hr % survival

	Topsmelt (Atherinops affinis) - 96 hr % survival

Chronic Toxicity - Freshwater

Algae:
	Selenastrum capricornutum - 96 hr population growth

Invertebrates:

	Ceriodaphnia dubia - 7 day survival and fecundity

	Daphnia magna - 7 or 21 day survival and fecundity

Fish:

	Fathead Minnow (Pimephales promelas) - 7 day survival & growth

	Fathead Minnow - 7 day embryo-larval survival and teratogenicity

Chronic Toxicity - Estuarine/Marine

Algae:
	Skeletonema costatum or Thalassiosira pseudonana - 96 hr population growth

	Giant Kelp (Macrocystis pyrifera) - spore germination and growth

Invertebrates:

	Mysidopsis bahia - 7 day survival, growth & fecundity

	Holmesimysis costata - 7 day survival & growth

	Mussel (Mytilus edulis) or Oyster (Crassostrea gigas)-embryo development

	Purple Urchin (S. purpuratus) or Sand Dollar (Dendraster excentricus) - sperm fertilization and/or embryo development

	Red Abalone (Haliotus rufescens) - embryo development

Fish:

	Inland Silversides (Menidia beryllina) - 7 day survival & growth

	Sheepshead Minnow (Cyprinodon variegatus) - 7 day survival & growth

	Topsmelt (Atherinops affinis) - 7 day survival & growth

Partial List of Sediment Toxicity and Bioaccumulation Testing Species:

Freshwater/Estuarine

Porewater/Elutriate Tests:
	Ceriodaphnia dubia - acute or chronic

	Daphnia magna - acute or chronic

Solid-Phase:

	Hyalella azteca - 10, 14 or 28 day % survival (and growth)

	Chironomus spp - 10 day % survival, life-cycle testing

	Lumbriculus variegatus - 28 day bioaccumulation test

Estuarine/Marine

Porewater/Elutriate Tests:
	Mysidopsis bahia - acute or chronic

	Holmesimysis costata - acute or chronic

	Mussel (Mytilus edulis) -embryo development

	Oyster (Crassostrea gigas) - embryo development

	Purple Urchin (S. purpuratus) or Sand Dollar (Dendraster excentricus) - sperm fertilization or embryo development

Solid-Phase:

	Ampelisca abdita - 10 day % survival

	Eohaustorius estuarius - 10 day % survival

	Rhephoxynius abronius - 10 day % survival

	Grandidierella japonica - 10 day % survival

	Corophium insidiosum - 10 day % survival

	Leptocheirus plumulosus - 10 day % survival

	Nereis (Neanthes) arenacoedentata - 21 day survival & growth

	Nephtys caecoides - 28 day bioaccumulation test

	Macoma nasuta - 28 day bioaccumulation test

Testing with Other Species

Pacific EcoRisk has considerable experience in the use of non-standard species in their research and testing. If the use of resident or native species is desired, please inquire.