Environment: milieu / climate zone / depth range / distribution range
Οικολογία
Θαλασσινό(ά) βενθικό(ς). Tropical; 27°N - 13°N, 50°E - 67°E (Ref. 114953)
Northwest Indian Ocean: Socotra Is. to Pakistan.
Μέγεθος / Βάρος / Age
Maturity: Lm ? range ? - ? cm
Max length : 78.0 cm TL αρσενικό/απροσδιόριστο; (Ref. 114953)
Found inshore in inner continental shelf. Males mature at ca 62 cm TL, born at ca. 18 cm TL; produces 1-6 pups (Ref. 114953). Ovoviviparous (Ref. 50449).
Life cycle and mating behavior
Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες
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).
Randall, J.E. and L.J.V. Compagno, 1995. A review of the guitarfishes of the genus Rhinobatos (Rajiformes: Rhinobatidae) from Oman, with description of a new species. Raffles Bull. Zool. 43(2):289-298. (Ref. 11293)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Εργαλεία
Special reports
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Διαδικτυακές πηγές
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00295 (0.00151 - 0.00578), b=3.13 (2.96 - 3.30), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Τροφικό Επίπεδο (Ref.
69278): 3.5 ±0.5 se; based on size and trophs of closest relatives
Ελαστικότητα (Ref.
120179): Χαμηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού 4,5 - 14 έτη (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (51 of 100).
