Actinopteri (ray-finned fishes) > Perciformes/Cottoidei
(Sculpins) > Cyclopteridae
(Lumpfishes) > Eumicrotreminae
Etymology: Eumicrotremus: Greek, eu = good + Greek, mikros = little, small + Greek, trema = hole (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 5 - 1038 m (Ref. 117245), usually - m (Ref. ). Polar; 0°C - ; 84°N - 50°N, 180°W - 180°E (Ref. 117245)
Arctic to Northwest Atlantic and Northwest Pacific: Canadian Arctic to Hudson Bay, Ungava Bay and Labrador in Canada (Ref. 7251). Arctic Ocean, Barents Sea, Franz Josef Land, Spitsbergen, eastern Greenland, Kara, Laptev, Siberian and Chukchi seas and the Sea of Okhotsk.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 10.0 cm SL male/unsexed; (Ref. 4701)
Found on mud, gravel or stone bottoms at temperatures below 0° C (Ref. 4701). Young occur in shallower water (Ref. 4701). Benthic; feed on crustaceans and oikopleura (Ref. 58426).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Stein, D.L., 1986. Cyclopteridae. p. 1269-1274. 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. UNESCO, Paris. Vol. III. (Ref. 4701)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): -1.2 - 2.9, mean 0.2 °C (based on 2662 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02089 (0.00774 - 0.05639), b=3.03 (2.79 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.3 ±0.34 se; based on food items.
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (14 of 100) .