Elasmobranchii (hajar och rockor) (sharks and rays) >
Myliobatiformes (Stingrays) >
Rhinopteridae (Cownose rays)
Etymology: Rhinoptera: Greek, rhinos = nose + Greek,pteron = fin, wing (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Ekologi
marina bentopelagisk. Subtropical; 38°N - 15°N, 18°W - 36°E
Eastern Atlantic: southern Spain to Senegal, including the Mediterranean.
Size / Vikt / Age
Maturity: Lm ? range ? - ? cm
Max length : 200 cm WD hane/ej könsbestämd; (Ref. 6678)
Found in tropical to warm temperate coastal waters, but absent from islands of western Pacific. Often forming large groups swimming near the surface and quite destructive of commercial oyster and clam beds. Feeds on bottom-living mollusks, crustaceans and fishes. Seldom marketed. Ovoviviparous, gestation period up to one year with 2-6 embryos produced.
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).
McEachran, J.D. and B. Séret, 1990. Rhinopteridae. p. 71-72. 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. 4441)
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): 17.1 - 21.7, mean 19.7 °C (based on 136 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00451 - 0.02792), b=2.98 (2.76 - 3.20), in cm total length, based on LWR estimates for this Subfamily-BS (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.8 ±0.60 se; based on food items.
Resiliens (Ref.
120179): Mycket låg, lägsta populationsfördubblingstid mer än 14 år (Fec=2).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (85 of 100).
Nutrients (Ref.
124155): Calcium = 11 [2, 53] mg/100g ; Iron = 0.54 [0.13, 1.54] mg/100g ; Protein = 21.5 [16.4, 26.6] % ; Omega3 = 0.193 [0.054, 0.609] g/100g ; Selenium = 23.5 [7.3, 75.5] μg/100g ; VitaminA = 8.83 [2.81, 27.94] μg/100g ; Zinc = 0.539 [0.260, 0.995] mg/100g (wet weight);
