Actinopteri (ray-finned fishes) > Perciformes/Cottoidei
(Sculpins) > Cyclopteridae
(Lumpfishes) > Eumicrotreminae
Etymology: Eumicrotremus: Greek, eu = good + Greek, mikros = little, small + Greek, trema = hole (Ref. 45335). More on author: Tanaka.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 20 - 900 m (Ref. 50550). Temperate; -1°C - 6°C (Ref. 56557)
Northwest Pacific: Bering Sea from about 61°N to Pacific Ocean south of Unimak Pass, southern Sea of Okhotsk, southern Sea of Japan, and Pacific Ocean off Hokkaido.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 12.0 cm TL male/unsexed; (Ref. 56557)
Morphology | Morphometrics
(total): 6 - 7;
soft rays: 9 - 11. Head and body covered with numerous bony tubercles; first dorsal fin very low, covered with thick skin, but tips of rays projecting above a row of small bony tubercles (Ref. 559).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Mecklenburg, C.W. and B.A. Sheiko, 2003. Family Cyclopteridae Bonaparte 1831 - lumpsuckers. Calif. Acad. Sci. Annotated Checklists of Fishes (6):17. (Ref. 48811)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 0.5 - 5.2, mean 1.5 °C (based on 313 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02089 (0.00785 - 0.05563), 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 ±0.4 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 (14 of 100) .