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Bathylagus pacificus  Gilbert, 1890

Slender blacksmelt
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| Native range | All suitable habitat | PointMap | Year 2100 |
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Bathylagus pacificus   AquaMaps   Data sources: GBIF OBIS
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Image of Bathylagus pacificus (Slender blacksmelt)
Bathylagus pacificus
Picture by Orlov, A.

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

Actinopterygii (ray-finned fishes) > Osmeriformes (Smelts) > Bathylagidae (Deep-sea smelts)
Etymology: Bathylagus: Greek, bathys = deep + Greek, lagos = hare (Ref. 45335);  pacificus: Named after the Pacific Ocean (Ref. 6885).   More on author: Gilbert.

Environment / Climate / Range Ecology

Marine; bathypelagic; depth range 0 - 7700 m (Ref. 50610), usually 600 - 800 m (Ref. 28981).   Deep-water; 61°N - 27°N, 140°E - 114°W

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 25.0 cm SL male/unsexed; (Ref. 4525)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 8-13; Anal spines: 0; Anal soft rays: 15 - 25; Vertebrae: 44 - 51. Body slender and compressed. Anal fin base long and about twice the length of dorsal fin base. Eye diameter about twice snout length. Upper end of gill slit reaching above midline of side of body. No knob-like process in interorbital space. Dorsoposterior edge of operculum not curved inward. Traces of detached scales black. Color black or dark brown; bluish black on head and ventral surfaces, and on peritoneum (Ref. 6885).

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

North Pacific: off the Pacific coast of northern Japan and the Bering Sea to the Gulf of Alaska southward to northern Baja California, Mexico.

Biology     Glossary (e.g. epibenthic)

Does not undertake a diurnal, vertical migration. Feeds heavily on crustaceans (Ref. 4525). Oviparous, with planktonic eggs and larvae (Ref. 35604).

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. 90363)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

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

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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5078   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00813 (0.00473 - 0.01397), b=3.06 (2.90 - 3.22), based on LWR estimates for species & Subfamily-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.3   ±0.42 se; Based on food items.
Resilience (Ref. 69278):  Low, minimum population doubling time 4.5 - 14 years (K=0.14 (very tentative estimate)).
Vulnerability (Ref. 59153):  Moderate to high vulnerability (52 of 100) .
Price category (Ref. 80766):   Unknown.