Elasmobranchii (hajar och rockor) (sharks and rays) >
Rhinopristiformes (Shovelnose rays) >
Rhinidae (Wedgefishes)
Etymology: Rhynchobatus: Greek, rhingchos = snout + Greek, batis, -idos = a sting ray (Raja sp.) (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Ekologi
marina bottenlevande; djupintervall 0 - 35 m (Ref. 106604), usually ? - 35 m (Ref. 27000). Tropical; 28°N - 5°S, 20°W - 10°E (Ref. 114953)
Eastern Atlantic: Congo to Mauritania.
Size / Vikt / Age
Maturity: Lm ?  range ? - ? cm
Max length : 300 cm TL hane/ej könsbestämd; (Ref. 2683); common length : 150 cm TL hane/ej könsbestämd; (Ref. 26999)
Benthic (Ref. 114953). Occurs in shallow coastal waters, more or less stationary. Ovoviviparous (Ref. 50449). Adults feed mainly on small bony fishes and invertebrates. Females have litters of 2-5 pups. Maturity size unknown but born at 79-85 cm TL (Ref. 114953).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
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).
Reiner, F., 1996. Catálogo dos peixes do arquipélago de Cabo Verde. Publ. Avuls. Inst. Port. Invest. Mar. 2:339 p. (Ref. 27000)
IUCN Red List Status (Ref. 126983)
Threat to humans
Harmless
Human uses
Fiskeri: kommersiell
Ytterligare information
Age/SizeTillväxtLength-weightLength-lengthLength-frequenciesMorfometriMorfologiLarverLarvdynamikRekryteringAbundansBRUVS
referenserVattenbrukVattenbruksprofilAvelslinjerGenetikAllelfrekvenserÄrftlighetSjukdomarBehandlingNutrientsMass conversion
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Estimates based on models
Preferred temperature (Ref.
123201): 23.2 - 28, mean 26.5 °C (based on 100 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5049 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00372 (0.00166 - 0.00830), b=3.11 (2.91 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 4.5 ±0.80 se; based on food items.
Resiliens (Ref.
120179): Låg, lägsta populationsfördubblingstid 4,5-14 år (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).