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Dichichthys - Species in
Dichichthyidae - - Classification -
- Dichichthyidae
- Carcharhiniformes
- Myxini
- Chordata
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Dichichthys melanobranchus Chan, 1966
Blackgill catshark
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Dichichthys melanobranchus
Picture by FAO
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Picture by FAO
Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa
Myxini (pirålar) (hagfishes) > Carcharhiniformes (Ground sharks) > Dichichthyidae ()
Etymology: Dichichthys: Name from the combination of the Greek 'dicho'- meaning 'to branch in two' and 'ichthys' for 'fish', with this genus being intermediate between the Galeus-Parmaturus complex and Apristurus; melanobranchus: melanos (Gr.), black; branchos (Gr.), gill, referring to blackish color on gill septa (See ETYFish).
Etymology: Dichichthys: Name from the combination of the Greek 'dicho'- meaning 'to branch in two' and 'ichthys' for 'fish', with this genus being intermediate between the Galeus-Parmaturus complex and Apristurus; melanobranchus: melanos (Gr.), black; branchos (Gr.), gill, referring to blackish color on gill septa (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range Ekologi
marina djupbottenlevande; djupintervall 540 - 810 m (Ref. 244). Deep-water; 21°N - 18°N
Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri
Northwest Pacific: known from only 3 specimens taken in the South China Sea. Collected less than a degree north of the northwestern boundary of the Western Central Pacific (Ref. 11146).
Size / Vikt / Age
Maturity: Lm ? range ? - ? cm
Max length : 85.0 cm TL (female)
Max length : 85.0 cm TL (female)
Short description Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 0; Taggstrålar i analfenan: 0. Light brown with distal parts and anterior margins of fins, snout, nostrils, and gills blackish brown in young, possibly uniform blackish brown in adults (Ref. 11146).
A poorly known deep-water bottom-dwelling catshark found on mud bottoms of the upper continental slopes (Ref. 11146). Oviparous (Ref. 50449).
Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).
Main reference
Upload your references | referenser | Koordinator | Medarbetare
Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Least Concern (LC) ; Date assessed: 27 August 2019
CITES
Not Evaluated
Threat to humans
Harmless
Human uses
Fiskeri: saknar intresse
FAO - Publication: search | FishSource |
Ytterligare information
Trophic ecology
Födoslag
Födosammansättning
Födointag
Food rations
Predatorer
Födoslag
Födosammansättning
Födointag
Food rations
Predatorer
Ecology
Ekologi
Ekologi
Population dynamics
Tillväxtparametrar
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Rekrytering
Abundans
Tillväxtparametrar
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Rekrytering
Abundans
Life cycle
Reproduktion
Könsmognad
Maturity/Gills rel.
Fecundity
Lek
Spawning aggregations
Ägg
Egg development
Larver
Larvdynamik
Reproduktion
Könsmognad
Maturity/Gills rel.
Fecundity
Lek
Spawning aggregations
Ägg
Egg development
Larver
Larvdynamik
Anatomy
Gälyta
Brain
Otolith
Gälyta
Brain
Otolith
Physiology
Body composition
Nutrients
Syreförbrukning
Swimming type
Simhastighet
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Body composition
Nutrients
Syreförbrukning
Swimming type
Simhastighet
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Genetics
Genetik
Heterozygosity
Ärftlighet
Genetik
Heterozygosity
Ärftlighet
Human related
Aquaculture systems
Vattenbruksprofiler
Avelslinjer
Ciguatera cases
Stamps, coins, misc.
Aquaculture systems
Vattenbruksprofiler
Avelslinjer
Ciguatera cases
Stamps, coins, misc.
Verktyg
E-book | Fälthandbok | Bestämningsnycklar | Längdfördelnings-verktyg | Livshistorie-verktyg | Prickkarta | Classification Tree
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Special reports
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Internet-källor
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: Släkte, Arter | 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, sök | World Records Freshwater Fishing | Zoobank | Zoological Record
Estimates based on models
Phylogenetic diversity index (Ref. 82804): PD50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
Trofisk nivå (Ref. 69278): 4.0 ±0.5 se; based on size and trophs of closest relatives
Resiliens (Ref. 120179): Låg, lägsta populationsfördubblingstid 4,5-14 år (Fec assumed to be <100).
Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (54 of 100).