PAN Pesticides Database - Chemical Toxicity Studies on Aquatic Organisms

Acute Aquatic Ecotoxicity Summaries for Malathion on Crustaceans

Use(s): Insecticide    Chem Class: Organophosphorus    U.S. EPA PC Code:057701, 857701    CAS Number: 121-75-5
Sorted by Organism Group, Scientific Name and LC50. Species summary toxicity data are derived from the U.S. EPA AQUIRE database.
Records 1 to 28 of 28
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Common Name Scientific Name Avg Species LC50 (ug/L) LC50 Std Dev Number of Studies Avg Species Rating Outlier Result for Organism Group?

Crustaceans

Aquatic sowbug Asellus aquaticus 60,620 19,349 5 Slightly Toxic Outlier 
Aquatic sowbug Asellus brevicaudus 4,500 1,500 2 Moderately Toxic  
Crab Barytelphusa cunicularis 6,205 1,847 4 Moderately Toxic  
Dungeness or edible crab Cancer magister 665.6 664.4 2 Highly Toxic  
Bay shrimp, Sand shrimp Crangon septemspinosa 163.0 93.1 3 Highly Toxic  
Ostracod Cypretta kawatai 197.5 146.5 2 Highly Toxic  
Ostracod Cypria sp. 2.00 - 1 Very Highly Toxic  
Ostracod, Seed shrimp Cypridopsis vidua 133.5 86.5 2 Highly Toxic  
American lobster Homarus americanus 20.9 17.1 2 Very Highly Toxic  
White shrimp Litopenaeus vannamei 21.5 - 1 Very Highly Toxic  
Prawn Macrobrachium lamarrei 1,488 888.8 5 Moderately Toxic  
Giant river prawn Macrobrachium rosenbergii 87.8 101.2 6 Very Highly Toxic  
Sand shrimp Metapenaeus monoceros 1,482 263.8 5 Moderately Toxic  
Opposum Shrimp Neomysis mercedis 2.22 0.96 4 Very Highly Toxic  
Crayfish Orconectes nais 5,118 4,883 4 Moderately Toxic  
Crab Oziotelphusa senex senex 10,200 4,031 4 Slightly Toxic  
Longwrist hermit crab Pagurus longicarpus 100.3 14.3 3 Highly Toxic  
Korean or Oriental shrimp Palaemon macrodactylus 45.2 36.2 2 Very Highly Toxic  
Crab Paratelphusa hydrodromus 6,000 - 1 Moderately Toxic  
Freshwater shrimp Paratya compressa improvisa 3.62 - 1 Very Highly Toxic  
Northern pink shrimp Penaeus duorarum 12.2 0.25 2 Very Highly Toxic  
Indian prawn Penaeus indicus 111.0 138.9 12 Highly Toxic  
Jumbo tiger prawn Penaeus monodon 510.0 92.7 4 Highly Toxic  
White river crayfish Procambarus acutus acutus 50,000 - 1 Slightly Toxic  
Red swamp crayfish Procambarus clarkii 17,420 22,451 3 Slightly Toxic  
Fairy shrimp Streptocephalus proboscideus 72,964 8,536 2 Slightly Toxic Outlier 
Fairy shrimp Streptocephalus rubricaudatus 73,700 - 1 Slightly Toxic Outlier 
Fairy shrimp Streptocephalus texanus 54,600 - 1 Slightly Toxic  
Records 1 to 28 of 28
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