Eubranchipus oregonus
• Very rare; known form less than 80 locations worldwide
• Known from lower mainland, Vancouver Island and some Gulf Islands, but at very few sites
• Found in temperate rainforest habitats from California to Southern British Columbia
• Isolate populations in Oklahoma
| Phylum: | Arthropoda |
| Class: | Malacostraca |
| Order: | Decapoda |
| Family: | Palaemonidae |
Identification Tips:
• Large free-swimming invertebrate (to 35 mm)
• May be reddish-orange, white, or greenish-blue
• Swims upside down
Life History:
• Found in small temporary ponds cold, quiet, fishless waters of well vegetated, temporary pools
• Eggs remain as pond dries and hatch into a new generation when wet conditions return
• Free swimming shrimp may be found during winter and early spring
• Filter feeds detritus from the water and scrape periphyton from the pond bottom
| POLLUTION TOLERANCE | ||||
| Very Sensitive | Somewhat Sensitive | Facultative | Somewhat Tolerant | Very Tolerant |
| Most | ||||
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Primary Information Source:
Voshell, J. Reese. 2002. A Guide to Common Freshwater Invertebrates of North America. McDonald and Woodward Publishing Company. Blacksburg, Virginia.
