Holohalaelurus punctatus, African spotted catshark

Holohalaelurus punctatus (Gilchrist 1914)

African spotted catshark
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Holohalaelurus punctatus   AquaMaps   Data sources: GBIF OBIS
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Image of Holohalaelurus punctatus (African spotted catshark)
Holohalaelurus punctatus
Picture by FAO

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (Haie und Rochen) (sharks and rays) > Carcharhiniformes (Ground sharks) > Scyliorhinidae (Cat sharks)
Etymology: Holohalaelurus: Greek 'Holos' meaning entire, referring to the lack of labial folds, and the genus Halaelurus, for which Holohalaelurus was proposed as a subgenus of by Fowler (1934).;  punctatus: Name most likely derived from Latin 'punctum' meaning small hole, dot or spot, referring to the many small spots covering the dorsal surface of this species (Ref. 75585).

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

; seewasser bathydemersal; tiefenbereich 220 - 440 m (Ref. 5510).   Deep-water; 4°S - 37°S

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Western Indian Ocean: endemic to the subtropical and tropical waters of southwestern Indian Ocean, southern Mozambique, off Natal, South Africa and off Madagascar (Ref. 75585). Status of threat: a common catch in bottom trawls in Natal and southern Mozambique, yet, despite recent biodiversity trawl surveys in that region, not a single specimen has been collected from this area since 1972. ORI data sheets confirm that specimens collected between 1964 and 1972 were apparently abundant, particularly off Mozambique in May 1969, and off Durban in June 1971. The only specimens of this species that have been collected since this date have been those from Madagascar in the late 1980’s and early 1990’s (Ref. 75585).

Length at first maturity / Size / Gewicht / Alter

Maturity: Lm ?, range 30 - 32.6 cm
Max length : 35.0 cm TL Männchen/unbestimmt; (Ref. 5510); 26.0 cm TL (female)

Kurzbeschreibung Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt): 0; Rückenflossenweichstrahlen (insgesamt): 0; Afterflossenstacheln 0; Afterflossenweichstrahlen: 0. A broad-headed, dwarf catshark with small dark brown spots closely set on a yellow-brown or orange-brown background; small black pores on underside of head and body; no labial furrows (Ref. 5578).

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Found on the uppermost continental slopes (Ref. 244). Feeds on small fishes, crustaceans, and cephalopods (Ref. 5213). The adult males are larger than females, a characteristic unusual among sharks (Ref. 244). Manifests partial sexual segregation. Oviparous (Ref. 50449).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Oviparous, with one egg-case laid per oviduct at a time. Embryos feed solely on yolk (Ref. 50449). Partial sexual segregation is manifested by greater number of males than females off Natal but not off southern Mozambique.

Hauptreferenz Upload your references | Referenzen | Koordinator : Compagno, Leonard J.V. | Partner

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 Rote Liste Status (Ref. 123251)

  stark gefährdet (EN) (A2d); Date assessed: 01 August 2019

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless





Nutzung durch Menschen

Fischereien: nicht kommerziell
FAO(Publication : search) | FishSource |

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Estimates based on models

Preferred temperature (Ref. 115969): 13.1 - 15.8, mean 15.3 °C (based on 13 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5312   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00331 (0.00170 - 0.00646), b=3.15 (2.97 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  4.2   ±0.61 se; based on food items.
Widerstandsfähigkeit (Ref. 120179):  niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (Fec assumed to be <100).
Verwundbarkeit (Ref. 59153):  Low to moderate vulnerability (34 of 100) .