Hydrolagus colliei, Spotted ratfish : aquarium

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Hydrolagus colliei (Lay & Bennett, 1839)

Spotted ratfish
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Hydrolagus colliei   AquaMaps   Data sources: GBIF OBIS
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Image of Hydrolagus colliei (Spotted ratfish)
Hydrolagus colliei
Picture by Nichols, J.

Classification / Names Κοινά ονόματα | Συνώνυμα | Catalog of Fishes(Γένος, Είδη) | ITIS | CoL | WoRMS | Cloffa

Ολοκέφαλοι (χίμαιρες) (chimaeras) > Chimaeriformes (Chimaeras) > Chimaeridae (Shortnose chimaeras or ratfishes)
Etymology: Hydrolagus: Greek, hydr = water + Greek, lagos = hare (Ref. 45335);  colliei: Named after M. Collie, naturalist on Captain Beechey's Blossom (Ref. 6885).  More on authors: Lay & Bennett.

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

; Θαλασσινό(ά) βενθικό(ς); εύρος βάθους 0 - 913 m (Ref. 6793), usually 50 - 400 m (Ref. 43939).   Temperate; 59°N - 8°N, 141°W - 83°W

Κατανομή Χώρες | Περιοχές FAO | Οικοσυστήματα | Παρουσίες | Point map | Εισαγωγές | Faunafri

Northeastern Pacific: west coast of North America from southwestern Alaska to Baja California, Mexico, including the Gulf of California, and Costa Rica.

Length at first maturity / Μέγεθος / Βάρος / Age

Maturity: Lm ?, range 19 - ? cm
Max length : 100.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 96339)

Short description Μορφολογία | Μορφομετρία

This species is distinguished by the following characters: short and bluntly rounded snout; oral and preopercular lateral line canals not sharing a short common branch from the infraorbital canal; anterior edge of dorsal-fin spine non-serrated; anterior and posterior regions of second dorsal-fin considerably taller than the middle region; pectoral fins when depressed do not reach beyond to origin of pelvic fins; no anal fin; caudal-fin axis horizontal with the fin nearly symmetrical, epaxial and hypaxial lobes equal sized; coloration brown or reddish brown with small white spots on head and trunk (Ref. 97389).

Βιολογία     Γλωσσάρι (π.χ. epibenthic)

Found near the bottom, from close inshore to about 913 m (Ref. 2850). Abundant in cold waters at moderate depths. Feed on mollusks, crustaceans and fishes (Ref. 37955); also echinoderms and worms (Ref. 28499). The spine can be dangerous and cause a painful wound (Ref. 2850). Fishers are reputed to fear the jaws of the ratfish more than they do the dorsal spine. Its flesh is edible but bland and leaves an unpleasant aftertaste (Ref. 28499). The liver was used as a source of machine oil (Ref. 28499).

Life cycle and mating behavior Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες

Distinct pairing during copulation (Ref. 205). The female extrudes two eggs at a time (each contained in a capsule) and may take up to 30 hours to extrude all her egg cases, which then hang from her body on a long filament for another 4 to 6 days. The egg cases end up planted vertically in the mud or just lying with filaments entangled on the bottom. Females extruding egss can be found year-round (Ref. 28499).

Main reference Upload your references | Αναφορές | Συντονιστής | Συνεργάτες

Allen, M.J. and G.B. Smith, 1988. Atlas and zoogeography of common fishes in the Bering Sea and northeastern Pacific. NOAA Tech. Rep. NMFS 66, 151 p. (Ref. 6793)

IUCN Red List Status (Ref. 123251)

  Least Concern (LC) ; Date assessed: 05 December 2014

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Traumatogenic (Ref. 4690)





Human uses

αλιεία: χωρίς ενδιαφέρον; Ενυδρείο: Δημόσια ενυδρεία
FAO - αλιεία: landings; Publication: search | FishSource | Η θάλασσα γύρω μας

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Διαδικτυακές πηγές

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Γένος, Είδη | DiscoverLife | ECOTOX | FAO - αλιεία: landings; Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | Δημόσια ενυδρεία | PubMed | Reef Life Survey | Socotra Atlas | Δέντρο Ζωής | Wikipedia: Go, αναζήτηση | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 5.1 - 9.7, mean 7.5 °C (based on 115 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00309 (0.00126 - 0.00755), b=3.10 (2.89 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Τροφικό Επίπεδο (Ref. 69278):  3.7   ±0.54 se; based on food items.
Generation time: 5.6 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Ελαστικότητα (Ref. 120179):  Χαμηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού 4,5 - 14 έτη (K=0.2-0.22; Fec=2).
Vulnerability (Ref. 59153):  Moderate to high vulnerability (50 of 100) .
Nutrients (Ref. 124155):  Calcium = 21 [4, 56] mg/100g ; Iron = 0.258 [0.106, 0.617] mg/100g ; Protein = 16.8 [11.3, 19.9] % ; Omega3 = 0.429 [0.208, 0.947] g/100g ; Selenium = 21.3 [2.7, 59.0] μg/100g ; VitaminA = 6.27 [2.33, 15.49] μg/100g ; Zinc = 0.456 [0.246, 1.049] mg/100g (wet weight);