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Aptocyclus ventricosus (Pallas, 1769)

Smooth lumpsucker
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Native range | All suitable habitat | Point map | Year 2050
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Aptocyclus ventricosus   AquaMaps   Data sources: GBIF OBIS
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Image of Aptocyclus ventricosus (Smooth lumpsucker)
Aptocyclus ventricosus
Picture by Orlov, A.

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Perciformes/Cottoidei (Sculpins) > Cyclopteridae (Lumpfishes) > Liparopsinae
Etymology: Aptocyclus: Greek, aptos, -e, -on = visible, tangible + Greek, kyklos = circle (Ref. 45335).
More on author: Pallas.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; benthopelagic; depth range 0 - 1700 m (Ref. 50550). Temperate; 66°N -

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

North Pacific: Pusan, Korea north (outside the Sea of Okhotsk) to Providence Bay in the Anadyr Gulf of the Bering Sea, throughout the Aleutian Basin and islands, and southeast to Mathieson Channel, British Columbia, Canada.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 41.0 cm TL male/unsexed; (Ref. 56527); max. published weight: 2.3 kg (Ref. 56527)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 8 - 9; Anal spines: 0; Anal soft rays: 7 - 9. Brownish gray with dark spots dorsally, muddy gray ventrally. Caudal fin rounded; pectoral fins large and broadly based; pelvic fins modified to form a clinging disc with a thickened margin on the ventral surface of the body (Ref. 6885). Skin naked without scales and tubercles. First dorsal fin completely embedded under the skin. Disk rudimentary in young, well developed in adults (Ref. 43939).

Biology     Glossary (e.g. epibenthic)

Males are said to guard the eggs (Ref. 6885). Migrate to spawn in littoral waters of Bering Sea in December-June (Ref. 43939).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983. A field guide to Pacific coast fishes of North America. Boston (MA, USA): Houghton Mifflin Company. xii+336 p. (Ref. 2850)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Not Evaluated 

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
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Ecology
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Length-weight rel.
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References

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Summary page | Point data | Common names | Photos

Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | OceanAdapt | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 2.3 - 4.6, mean 2.8 °C (based on 159 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.7   ±0.38 se; based on food items.
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (31 of 100).