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Rhodichthys regina Collett, 1879

Threadfin seasnail
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Native range | All suitable habitat | Point map | Year 2050
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Rhodichthys regina   AquaMaps   Data sources: GBIF OBIS
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drawing shows typical species in Liparidae.

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

Teleostei (teleosts) > Perciformes/Cottoidei (Sculpins) > Liparidae (Snailfishes)
Etymology: Rhodichthys: Greek, rhodeos, a,-on = rose + Greek, ichthys = fish (Ref. 45335).

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

Marine; bathydemersal; depth range 1080 - 2365 m (Ref. 51661). Deep-water; 75°N - 58°N, 140°W - 17°E

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

Arctic to Northeast Atlantic: Central Arctic Basin, Norwegian and Greenland seas (Ref. 51661); including north of the Wyville-Thomson Ridge and the Iceland-Faroe Rise (Ref. 4702).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 31.0 cm SL male/unsexed; (Ref. 4702)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 56 - 60; Vertebrae: 62 - 69. This species is distinguished by the following characters: vertebrae 62-69; D 56-60; pectoral fin with 12-13 rays in upper lobe, 4-5 notch rays (rudimentary to their basis and widely spaced) and 2-3 elongated rays in lower lobe; preanal distance 34.3-34.5% SL, head 23.4-23.9%; postorbital distance short, 12.7-13.0% SL; wide and flat tooth plates, teeth very small, slightly prominent and even in size; posterior margin of gill cover rounded; skin on head, including its lower side, pale (bright red in life); mouth pale, grayish gill cavity (Ref. 86261).

Biology     Glossary (e.g. epibenthic)

Epibenthic; feeds on crustaceans (Ref. 58426).

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

Main reference Upload your references | References | Coordinator | Collaborators

Stein, D.L. and K.W. Able, 1986. Liparididae. p. 1275-1283. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the North-eastern Atlantic and the Mediterranean. UNESCO, Paris. Vol. III. (Ref. 4702)

IUCN Red List Status (Ref. 130435: Version 2024-1)


CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: of no interest
FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet composition
Food consumption
Food rations
Predators
Ecology
Ecology
Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance
Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics
Distribution
Countries
FAO areas
Ecosystems
Occurrences
Introductions
BRUVS - Videos
Anatomy
Gill area
Brain
Otolith
Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Genetics
Genetics
Heterozygosity
Heritability
Human related
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.
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References
References

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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 | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): -0.9 - 4.2, mean 3.5 °C (based on 198 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00525 (0.00237 - 0.01161), b=3.15 (2.96 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.6   ±0.48 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 (28 of 100).