Apristurus riveri, Broadgill catshark

Apristurus riveri Bigelow & Schroeder, 1944

Broadgill catshark
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This map was computer-generated and has not yet been reviewed.
Apristurus riveri   AquaMaps   Data sources: GBIF OBIS
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Image of Apristurus riveri (Broadgill catshark)
Apristurus riveri
Picture by Canadian Museum of Nature, Ottawa, Canada

Classificatie / Names Populaire namen | Synoniemen | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (haaien en roggen) (sharks and rays) > Carcharhiniformes (Ground sharks) > Pentanchidae (Deepwater catsharks)
Etymology: Apristurus: Greek, a = without + Greek, pristis = saw + Greek, oura = tail (Ref. 45335).

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

; marien bathydemersaal; diepteverspreiding 700 - 1500 m (Ref. 55584).   Deep-water; 30°N - 9°N

Verspreiding Landen | FAO regio's | Ecosystems | Voorkomen | Point map | Introducties | Faunafri

Western Central Atlantic: Cuba, northern Gulf of Mexico, and Panama.

Size / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 46.0 cm TL mannelijk/geslacht niet bekend; (Ref. 244); 41.0 cm TL (female)

Korte beschrijving Morfologie | Morfometrie

Relatively slender, moderately long, narrow snout and relatively narrow, low caudal fin. Color uniform dark brown (Ref. 37039). First to third gill openings long as the distance between the nostrils (Ref. 6032).

Biologie     Verklarende woordenlijst (b.v. epibenthic)

Found on the continental slopes. Oviparous, with one egg per oviduct laid at a time. Sexual dimorphism in adults unusually well-developed.

Life cycle and mating behavior Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | Larven

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Sexual dimorphism is evident in dentition of males (Ref. 49562). Males have longer teeth with fewer cusps (Ref. 51093) to make 'courtship biting' more effective (Ref. 49562).

Voornaamste referentie Upload your references | Referenties | Coördinator | Medewerkers

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)

Status op de Rode Lijst van het IUCN (Ref. 120744)

  Onvoldoende gegevens (DD) ; Date assessed: 01 March 2007

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaarlijk voor mensen

  Harmless





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Estimates based on models

Preferred temperature (Ref. 115969): 4.9 - 7.9, mean 5.7 (based on 95 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00316 (0.00147 - 0.00678), b=3.09 (2.91 - 3.27), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.8   ±0.4 se; Based on size and trophs of closest relatives
Weerstandsvermogen (Ref. 120179):  zeer laag, minimale populatieverdubbelingstijd meer dan 14 jaar (Fec assumed to be <10).
Kwetsbaarheid (Ref. 59153):  Moderate vulnerability (43 of 100) .