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Margariscus margarita  (Cope, 1867)

Allegheny pearl dace
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Margariscus margarita   AquaMaps   Data sources: GBIF OBIS
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Image of Margariscus margarita (Allegheny pearl dace)
Margariscus margarita
Picture by The Native Fish Conservancy

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Cypriniformes (Carps) > Cyprinidae (Minnows or carps) > Leuciscinae
Etymology: Margariscus: Greek, margariskos = pearl (Ref. 45335).

Environment / Climate / Range Ecology

Freshwater; demersal.   Subtropical; 34°N - 30°N

Length at first maturity / Size / Weight / Age

Maturity: Lm 9.4  range ? - ? cm
Max length : 16.0 cm TL male/unsexed; (Ref. 5723); common length : 9.3 cm TL male/unsexed; (Ref. 12193); max. reported age: 4 years (Ref. 12193)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

North America: Atlantic, Hudson Bay, Great Lakes, and Mississippi River basins in southern Canada and northern USA from Atlantic Coast to southern Northwest Territories, eastern British Columbia in Canada and Montana, USA; south to Virginia, Michigan, Wisconsin and Iowa, USA; in upper Missouri River basin.

Biology     Glossary (e.g. epibenthic)

Adults inhabit pools of creeks and small rivers, also ponds and lakes. They usually occur over sand or gravel. Feed on copepods, cladocerans, chironomids, beetles, filamentous algae, and Chara (Ref. 1998). Spawning occurs during the spring (Ref. 1998).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Spawning occurs in shallow rivers with moderate current, on sand or gravel. Males maintained territories 20.3 cm wide (at least 1.83 m apart from each other). A ripe female is driven onto the territory. The male places his pectoral fin beneath the female's body anteriorly, and his caudal fin placed over the caudal peduncle of the female. The pair vibrates and the eggs are deposited. Females spawn with different males.

Main reference Upload your references | References | Coordinator | Collaborators

Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott, 1991. Common and scientific names of fishes from the United States and Canada. Am. Fish. Soc. Spec. Pub. (20):183 p. (Ref. 3814)

IUCN Red List Status (Ref. 96402)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

Bait: occasionally
FAO(Publication : search) | FisheriesWiki | Sea Around Us

More information

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Internet sources

Alien/Invasive Species database | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00631 (0.00296 - 0.01347), b=3.05 (2.86 - 3.24), based on LWR estimates for this Subfamily-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.1   ±0.36 se; Based on food items.
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (tm=4).
Vulnerability (Ref. 59153):  Moderate vulnerability (36 of 100) .