Environment: milieu / climate zone / depth range / distribution range
Ekologi
laut dasar (demersal); kisaran kedalaman ? - 100 m (Ref. 27000), usually 10 - 15 m (Ref. 114953). Tropical; 31°N - 18°S, 19°W - 14°E (Ref. 114953)
Eastern Central Atlantic: Morocco to Angola.
Length at first maturity / Size / Weight / umur
Maturity: Lm 38.5, range 37 - 40 cm
Max length : 100.0 cm TL jantan/; (Ref. 6513); common length : 40.0 cm TL jantan/; (Ref. 114953); common length :50 cm TL (female); Berat maksimum terpublikasi: 1.4 kg (Ref. 114953)
Occurs in shallow coastal waters to moderate depth, over sandy and sandy-muddy bottoms. Feeds on mollusks and other benthic invertebrates, mainly shrimps (Ref. 6513, 114953). Ovoviviparous (Ref. 5377). Females mature at 37-40 cm TL, males ca. 30 cm TL; born at ca. 19 cm TL. Litters of 1-4 pups after short gestation; born at ca. 19 cm TL (Ref. 114953).
Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449).
Stehmann, M., 1990. Platyrhinidae. p. 28. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 1. (Ref. 6513)
Status IUCN Red List (Ref. 130435)
ancaman kepada manusia
Harmless
penggunaan manusia
Perikanan: komersial
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimates based on models
Preferred temperature (Ref.
123201): 15.6 - 20.9, mean 19.2 °C (based on 19 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.6 ±0.44 se; based on food items.
Daya lenting (Ref.
120179): Rendah, Waktu penggandaan populasi minimum 4.5 - 14 tahun (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): High vulnerability (60 of 100).