Ελασμοβράγχιοι (καρχαρίες και σαλάχια) (sharks and rays) >
Myliobatiformes (Stingrays) >
Dasyatidae (Stingrays) > Urogymninae
Etymology: Brevitrygon: Name from Latin 'brevis' meaning short and 'trygṓn' meaning stingray, referring to the short, semi-rigid tails of these stingrays; imbricata: Name fro Latin 'imbricata' meaning overlapping each other, referring to the secondary denticle band, which is very narrow over the branchial region and abdomen in this species.
More on authors: Bloch & Schneider.
Περιβάλλον: περιβάλλον / κλιματική ζώνη / εύρος βάθους / εύρος διανομής
Οικολογία
Θαλασσινό(ά); Γλυκού νερού; Υφάλμυρο βενθικό(ς); αμφίδρομο (Ref. 51243); εύρος βάθους 1 - 45 m (Ref. 130662). Tropical
Indian Ocean: India, Sri Lanka (Arabian Sea, Laccadive Sea and Bay of Bengal) and nw Indonesia (off Singapore); questionable in Myanmar and Taiwan.
Μήκος κατά την πρώτη ωρίμανση / Μέγεθος / Βάρος / Ηλικία
Γεννητική Ωρίμανση: Lm 19.0 range ? - ? cm
Max length : 25.5 cm WD αρσενικό/απροσδιόριστο; (Ref. 121648); 31.0 cm WD (female); μεγ. δημοσιευμένο βάρος: 590.00 g (Ref. 121648); μεγ. δημοσιευμένο βάρος: 590.00 g
Disc width equal to disc length; tail shorter than body; ventral surface of disc entirely white (Ref. 12693).
Body shape (shape guide): other.
Found in inshore coastal waters (Ref. 30573). Typically found in estuarine habitats, but also reported from the Great Lake. The single record from the Great Lake may in fact refer to Dasyatis laosensis. Young and adults feed on benthic invertebrates (Ref. 12693). Ovoviviparous (Ref. 124). Feeds on bottom-living invertebrates (Ref. 68964). May grow to a maximum of 140 cm disc length in the sea (Ref. 43081). Juveniles may be present in mangroves (Ref. 43081). Examined adult males 17.1 cm DW (32.0 cm TL) - 20.5 cm DW (39.8 cm TL); females 13.8 cm DW (25.6 cm TL) - 20.4 cm DW (39.6 cm TL); early juveniles (USNM 222564, immature male 12.0 cm DW and female 8.8 cm DW) have lost umbilical scars. Reported maximum disc width 30.0 cm (Ref. 11312) was found excessive (Ref. 130662).
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). Distinct pairing with embrace (Ref. 205).
Last, P.R., S. Weigmann and G.J.P. Naylor, 2023. The Indo-Pacific stingray genus Brevitrygon (Myliobatiformes: Dasyatidae): clarification of historical names and description of a new species, B. manjajiae sp. nov., from the western Indian Ocean. Diversity 15: 1-75. (Ref. 130662)
Κατάσταση Κόκκινου Καταλόγου IUCN (Ref. 130435: Version 2025-2 (Global))
Ανθρώπινες χρήσεις
αλιεία: περιορισμένης εμπορικότητας
Εργαλεία
Ειδικές εκθέσεις
Λήψη XML
Διαδικτυακές πηγές
Εκτιμήσεις βάσει μοντέλων
Προτιμώμενη θερμοκρασία (Αναφ.
123201): 26.4 - 29.2, mean 28.4 °C (based on 1288 cells).
Δείκτης φυλογενετικής ποικιλότητας (Αναφ.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01698 (0.01048 - 0.02752), b=3.12 (2.97 - 3.27), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Τροφικό Επίπεδο (Αναφ.
69278): 3.5 ±0.37 se; based on food items.
Generation time: 1.9 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
Ελαστικότητα (Αναφ.
120179): Πολύ χαμηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού > 14 έτη (K=0.59; Fec=1).
Ευπάθεια στην αλιεία (Ref.
59153): Moderate vulnerability (42 of 100).
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