Actinopterygii (ray-finned fishes) > Scorpaeniformes
(Scorpionfishes and flatheads) > Cyclopteridae
Etymology: Eumicrotremus: Greek, eu = good + Greek, mikros = little, small + Greek, trema = hole (Ref. 45335). More on authors: Gilbert & Burke.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 69 - 170 m (Ref. 43939). Polar
North Pacific: southeastern Bering Sea and central Aleutian Islands to northern Gulf of Alaska.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.4 cm TL male/unsexed; (Ref. 43939)
Morphology | Morphometrics
(total): 6 - 7;
soft rays: 9 - 10. Head and body covered with tubercles smaller than pupil, some with rosettes of short spines protruding and others concealed, forming bumps. Few or no spiny tubercles on throat. First dorsal fin covered with thick skin (Ref. 43939).
Found on sand, broken shell and gravel bottoms (Ref. 43939).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Mecklenburg, C.W., T.A. Mecklenburg and L.K. Thorsteinson, 2002. Fishes of Alaska. American Fisheries Society, Bethesda, Maryland. xxxvii +1037 p. (Ref. 43939)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 118484)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 3.4 - 5.7, mean 4.4 °C (based on 49 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.03090 (0.01192 - 0.08009), b=3.00 (2.78 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.2 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .