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Aspidophoroides olrikii  Lütken, 1877

Arctic alligatorfish
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Aspidophoroides olrikii   AquaMaps   Data sources: GBIF OBIS
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Image of Aspidophoroides olrikii (Arctic alligatorfish)
Aspidophoroides olrikii
Picture by Bull. U.S. Bur. Fish.

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

Actinopterygii (ray-finned fishes) > Scorpaeniformes (Scorpionfishes and flatheads) > Agonidae (Poachers) > Anoplagoninae
Etymology: Aspidophoroides: Greek, aspidos, shield + Latin, fero = to carry (Ref. 45335).

Environment / Climate / Range Ecology

Marine; brackish; demersal; depth range 7 - 520 m (Ref. 58496).   Polar, preferred ?; 83°N - 51°N

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

Arctic to Northwest Atlantic and Northwest to Northeast Pacific: Hudson Bay and Labrador in Canada and Greenland. Also in the Barents Sea, Kara Sea, White Sea and Siberia (Ref. 4700); Chukchi Sea, Bering Strait, Bering Sea and Anadyr Gulf (Ref. 6876).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 8.6 cm TL male/unsexed; (Ref. 4700)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 5-7; Anal spines: 0; Anal soft rays: 5 - 7. Caudal fin rounded. Upper parts brownish-grey, with a few dark spots or bands, lower parts light (Ref. 4700).

Biology     Glossary (e.g. epibenthic)

Found on sand and mud bottoms, at temperatures mostly below 0°C, rarely to 2-3°C or more and salinities of 33-35 ppt (Ref. 4700). Benthic (Ref. 58426). Minimum depth reported at 7m (Ref. 5951). Feeds on small amphipods, ostracods and nemertine worms (Ref. 4700).

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

Main reference Upload your references | References | Coordinator | Collaborators

Andriashev, A.P., 1986. Agonidae. p. 1265-1268. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the North-eastern Atlantic and the Mediterranean. volume 3. UNESCO, Paris. (Ref. 4700)

IUCN Red List Status (Ref. 115185)

  Not Evaluated 

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

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

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Summary page | Point data | Common names | Photos

Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishes of Iran | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | 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=0.00339 (0.00127 - 0.00902), b=3.07 (2.84 - 3.30), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.3   ±0.47 se; Based on food items.
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tm=2-4;Fec<2000).
Vulnerability (Ref. 59153):  Low vulnerability (19 of 100) .