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Bryozoichthys lysimus  (Jordan & Snyder, 1902)

Nutcracker prickleback
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Bryozoichthys lysimus   AquaMaps   Data sources: GBIF OBIS
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Image of Bryozoichthys lysimus (Nutcracker prickleback)
Bryozoichthys lysimus
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drawing shows typical fish in this Family.

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

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Stichaeidae (Pricklebacks) > Chirolophinae
Etymology: Bryozoichthys: Greek, bryon = moss + Greek, zoon = little + Greek, ichthys = fish (Ref. 45335).

Environment / Climate / Range Ecology

Marine; demersal; depth range 45 - 490 m (Ref. 50550), usually 100 - 200 m (Ref. 56593).   Boreal; 1°C - 4°C (Ref. 56593)

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

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)

Short description Morphology | Morphometrics

Dorsal spines (total): 61 - 66; Dorsal soft rays (total): 0; Anal spines: 1; Anal 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).

Biology     Glossary (e.g. epibenthic)

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

Main reference Upload your references | References | Coordinator | Collaborators

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. 115185)

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

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

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Internet sources

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | 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 | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969): 0.9 - 6.3, mean 4.6 (based on 122 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 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. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Moderate vulnerability (42 of 100) .