Actinopteri (ray-finned fishes) > Perciformes/Zoarcoidei
(Eelpouts and pricklebacks) > Stichaeidae
(Pricklebacks) > Chirolophinae
Etymology: Bryozoichthys: Greek, bryon = moss + Greek, zoon = little + Greek, ichthys = fish (Ref. 45335). More on authors: Jordan & Snyder.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 45 - 490 m (Ref. 50550), usually 100 - 200 m (Ref. 56593). Boreal; 1°C - 4°C (Ref. 56593)
North Pacific: northern Hokkaido, Japan to the northern Sea of Japan, the Okhotsk and Bering seas, to Gulf of Alaska (Ref. 559). Reported from South Korea (Ref. 77001).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 27.0 cm TL male/unsexed; (Ref. 56593); common length : 22.3 cm TL male/unsexed; (Ref. 56593); max. published weight: 150.00 g (Ref. 56593)
Morphology | Morphometrics
(total): 61 - 66;
soft rays: 47 - 50. Dorsal side of head with numerous dermal cirri; scales on body not extending forward beyond origin of dorsal fin; anterior chin with a pair of small cirri (Ref. 559).
Found in soft bottoms at depths of 45 - 490 meters; usually on outer continental shelf and upper slope (Ref. 51666).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984. The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)
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
): 0.9 - 6.3, mean 4.6 °C (based on 122 cells).
Phylogenetic diversity index (Ref. 82805
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.5 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate to high vulnerability (49 of 100) .