Home/Species/ Oregon Fairy Shrimp

Eubranchipus oregonus

Creaser, 1930

Oregon Fairy Shrimp

G3Vulnerable Found in 4 roadless areas NatureServe Explorer →

G3VulnerableGlobal Rank

Identity

Unique IDELEMENT_GLOBAL.2.119116

Element CodeICBRA01080

Record TypeSPECIES

ClassificationSpecies

Classification StatusStandard

Name CategoryInvertebrate Animal

Endemicoccurs (regularly, as a native taxon) in multiple nations

KingdomAnimalia

PhylumArthropoda

ClassBranchiopoda

OrderAnostraca

FamilyChirocephalidae

GenusEubranchipus

Concept Reference

McLaughlin, P. A., D. K. Camp, M. V. Angel, E. L. Bousfield, P. Brunel, R. C. Brusca, D. Cadien, A. C. Cohen, K. Conlan, L. G. Eldredge, D. L. Felder, J. W. Goy, T. Haney, B. Hann, R. W. Heard, E. A. Hendrycks, H. H. Hobbs III, J. R. Holsinger, B. Kensley, D. R. Laubitz, S. E. LeCroy, R. Lemaitre, R. F. Maddocks, J. W. Martin, P. Mikkelsen, E. Nelson, W. A. Newman, R. M. Overstreet, W. J. Poly, W. W. Price, J. W. Reid, A. Robertson, D. C. Rogers, A. Ross, M. Schotte, F. Schram, C. Shih, L. Watling, G. D. F. Wilson, and D. D. Turgeon. 2005. Common and Scientific Names of Aquatic Invertebrates from the United States and Canada: Crustaceans. American Fisheries Society Special Publication 31. 545 pp.

Taxonomic Comments

The species name "oregonius" is a misspelling (McLaughlin et al., 2005).

Conservation Status

Review Date2008-10-03

Change Date2008-10-03

Edition Date2008-10-03

Edition AuthorsRogers, D.C. (2008); Cordeiro, J. (2004)

Range Extent5000-20,000 square km (about 2000-8000 square miles)

Number of Occurrences21 - 80

Rank Reasons

Known from the Pacific Northwest and a a few pools in Oklahoma, all total less than 40 locations; although widespread, populations are extremely disjunct as they are found in temperate rainforest regions of the Pacific Northwest away from human settlement.

Range Extent Comments

Ranges through the temperate rainforest regions of central British Columbia south to northern California, with a few localities in the wetter portions of the Sierra Nevada Mountains. Disjunct populations in Oklahoma exist near the southern boundary of the ice sheild from the last ice age (Erikson and Belk, 1999).

Occurrences Comments

Although widespread, the occurrences of this species are extremely disjunct, as it occurs in wet rainforest type areas of the Pacific northwest where fairy shrimp habitat is scarce. Dexter (1953) cites Washington (Upper Farm of Country Club at Bainbridge Island), Oregon (pool west of the Dalles not far from the type locality in Portland), British Columbia (temporary pond at Victoria); as well as Oklahoma without locality information. Sites include "ephemeral pools south of Brocot, California" (USNM lot locality which could not be located); valleys of western Washington and Oregon, as far south as Cottage Grove, Oregon (200 km north of the California border); Schoettgan Pass; pool in the Eeel River valley in Rio Dell/Scotia, California; and in Oklahoma (Eriksen and Belk, 1999).

Ecology & Habitat

Habitat

Typically found in clear cool to cold water with neutral to low pH, in well vegeatated ephemeral pools

Palustrine Habitats

TEMPORARY POOL

Other Nations (2)

CanadaN2

Province	Rank	Native
British Columbia	SNR	Yes

United StatesN3

Province	Rank	Native
Oklahoma	SNR	Yes
Washington	S3	Yes
Oregon	S2	Yes
California	SNR	Yes

Roadless Areas (4)

California (2)

Area	Forest	Acres
Cow Creek	Shasta-Trinity National Forest	22,627
Little French C	Shasta-Trinity National Forest	11,529

Oregon (2)

Area	Forest	Acres
Maiden Peak	Deschutes National Forest	26,432
Maiden Peak	Willamette National Forest	9,627

References (7)

Dexter, R.W. 1953. Studies on North American fairy shrimps with the description of two new species. American Midland Naturalist 49:751-771.
Eriksen, C. H. and D. Belk. 1999. Fairy Shrimps of California's Puddles, Pools, and Playas. Mad River Press: Eureka, California.196 pp.
Helm, B.P. 1998. Biogeography of eight large branchiopods endemic to California. Pages 124-139 in C.W. Witham, E.T. Bauder, D. Belk, W.R. Ferren, Jr. and R. Ornduff (eds.) Ecology, Conservation, and Management of Vernal Pool Ecosystems- Proceedings from a 1996 Conference. California Native Plant society, Sacramento, California.
McLaughlin, P. A., D. K. Camp, M. V. Angel, E. L. Bousfield, P. Brunel, R. C. Brusca, D. Cadien, A. C. Cohen, K. Conlan, L. G. Eldredge, D. L. Felder, J. W. Goy, T. Haney, B. Hann, R. W. Heard, E. A. Hendrycks, H. H. Hobbs III, J. R. Holsinger, B. Kensley, D. R. Laubitz, S. E. LeCroy, R. Lemaitre, R. F. Maddocks, J. W. Martin, P. Mikkelsen, E. Nelson, W. A. Newman, R. M. Overstreet, W. J. Poly, W. W. Price, J. W. Reid, A. Robertson, D. C. Rogers, A. Ross, M. Schotte, F. Schram, C. Shih, L. Watling, G. D. F. Wilson, and D. D. Turgeon. 2005. Common and Scientific Names of Aquatic Invertebrates from the United States and Canada: Crustaceans. American Fisheries Society Special Publication 31. 545 pp.
Rogers, D. C. 2013. Anostraca catalogus (Crustacea: Branchiopoda). The Raffles Bulletin of Zoology 61(2):525–546.
Rogers, D.C. and B.J. Hann. 2016. Class Branchiopoda (in Chapter 16, Phylum Arthropoda). Pages 437-477 in J.H. Thorp and and D.C. Rogers (Editors), Thorp and Covich’s Freshwater Invertebrates, 4th edition, Volume II: Keys to Nearctic Fauna. Academic Press.
Rogers, D. C. and M. A. Hill. 2013. Annotated Checklist of the large branchiopod crustaceans of Idaho, Oregon and Washington, USA, with the "rediscovery" of a new species of <i>Branchinecta </i>(Anostraca: Branchinectidae). Zootaxa. 3694:249-261.