Elasmobranquios (tiburones y rayas) (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Scyliorhinidae (Cat sharks) > Scyliorhininae
Etymology: Poroderma: poros (Gr.), hole or passage; derma (Gr.), skin or hide, allusion not explained nor evident (Smith proposed name without a description) (See ETYFish); africanum: -anum (L.), belonging to: Africa, described from South Africa (See ETYFish).
More on author: Gmelin.
Environment: milieu / climate zone / rango de profundidad / distribution range
Ecología
marino demersal; rango de profundidad 0 - 100 m (Ref. 5510). Subtropical; 28°S - 36°S
Southeast Atlantic: endemic to South Africa (Ref. 12484). There are old records from Madagascar and Mauritius, but these require confirmation (Ref. 244).
Length at first maturity / Tamaño / Peso / Age
Madurez: Lm 68.5, range 65 - 72 cm
Max length : 101 cm TL macho / no sexado; (Ref. 244); 93.0 cm TL (female)
Short description
Claves de identificación | Morfología | Morfometría
Espinas dorsales (total) : 0; Espinas anales: 0. A large catshark with short nasal barbels and long horizontal black stripes (Ref. 5578).
Body shape (shape guide): elongated.
Occurs in the continental shelf, both inshore and offshore (Ref. 5578). Prefers rocky reefs from the intertidal zone down to 100 m depth (Ref. 5578). Nocturnal, often found in caves and crevices during the day (Ref. 5578). Feeds mainly on crustaceans, but also bony fish and cephalopods (Ref. 244). Oviparous (Ref. 50449). Readily kept in captivity (Ref. 244).
Life cycle and mating behavior
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Oviparous, with a single egg-case per oviduct (Ref. 244). Embryos feed solely on yolk (Ref. 50449). Size at hatching between 14 and 15 cm.
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 2025-1)
Threat to humans
Harmless
Human uses
Pesquerías: pesquerías de subsistencia; pesca deportiva: si
Herramientas
Special reports
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Fuentes de Internet
Estimates based on models
Preferred temperature (Referencia
123201): 16.2 - 22, mean 19 °C (based on 20 cells).
Phylogenetic diversity index (Referencia
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00282 (0.00157 - 0.00507), b=3.22 (3.05 - 3.39), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Nivel trófico (Referencia
69278): 3.6 ±0.5 se; based on diet studies.
Resiliencia (Referencia
120179): Bajo, población duplicada en un tiempo mínimo de 4.5-14 años (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): High vulnerability (61 of 100).
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Nutrients (Ref.
124155): Calcium = 20.9 [3.6, 115.7] mg/100g; Iron = 0.674 [0.178, 1.992] mg/100g; Protein = 18.3 [15.2, 21.4] %; Omega3 = 0.166 [0.072, 0.366] g/100g; Selenium = 22.6 [6.9, 64.6] μg/100g; VitaminA = 8.49 [2.90, 24.19] μg/100g; Zinc = 0.614 [0.294, 1.120] mg/100g (wet weight);
