Philippines country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: commercial | Ref: Conlu, P.V., 1986
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Recorded from Sitankai, Sulu and the Visayan Sea (Ref. 2858). Also Ref. 9909.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/rp.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Compagno, L.J.V., P.R. Last, J.D. Stevens and M.N.R. Alava, 2005
National Database:

Common names from other countries

Shovelnose ray, Brown shovelnose ray, Reuzenplatsnuitgitaarrog, ... more

Classification / Names Κοινά ονόματα | Συνώνυμα | Catalog of Fishes(Γένος, Είδη) | ITIS | CoL | WoRMS | Cloffa

Ελασμοβράγχιοι (καρχαρίες και σαλάχια) (sharks and rays) > Rhinopristiformes (Shovelnose rays) > Glaucostegidae (Giant guitarfishes)
Etymology:

Environment: milieu / climate zone / depth range / distribution range Οικολογία

Θαλασσινό(ά); Γλυκού νερού; Υφάλμυρο βενθικό(ς); εύρος βάθους 0 - 100 m (Ref. 6871). Tropical; 28°N - 32°S, 76°E - 165°E (Ref. 114953)

Κατανομή Χώρες | Περιοχές FAO | Οικοσυστήματα | Παρουσίες | Point map | Εισαγωγές | Faunafri

Indo-West Pacific: Thailand to New Guinea and the Solomon Islands, south to Australia. Records from the south coast of India, Sri Lanka, Bangladesh, and Myanmar need confirmation.

Length at first maturity / Μέγεθος / Βάρος / Age

Maturity: L_m 165.0, range 150 - 180 cm
Max length : 270 cm TL αρσενικό/απροσδιόριστο; (Ref. 9909)

Occurs inshore and offshore, from the intertidal to offshore continental and insular shelves (Ref. 9909). Adults are found offshore waters while young individuals are found inshore on sand flats, around atolls, and in mangrove swamps (Ref. 6871). Feeds on shellfish, mainly on prawns and crabs (Ref. 9909, Ref. 114953). Ovoviviparous (Ref. 50449). Maturity size at 150-180 cm TL; born at 38-40 cm TL (Ref. 114953). Reported to live and breed permanently in fresh water (Ref. 6871). Probably the major commercial guitarfish in the Western Central Pacific (Ref. 9909). Caught regularly by demersal tangle net fisheries operating throughout the area. Utilized for its meat, fins (both very high value), skin and cartilage (Ref.58048). Reported to attain a maximum length of 4 m (Ref. 58784).

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). Born at 38-40 cm TL (Ref.58048).

Main reference Upload your references | Αναφορές | Συντονιστής | Συνεργάτες

Last, P.R. and J.D. Stevens, 1994. Sharks and rays of Australia. CSIRO, Australia. 513 p. (Ref. 6871)

IUCN Red List Status (Ref. 130435)

Critically Endangered (CR) (A2bd); Date assessed: 03 December 2018

CITES (Ref. 128078)

Appendix II: International trade monitored

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless (Ref. 12951)

Human uses

αλιεία: περιορισμένης εμπορικότητας; Ενυδρείο: Εμπορικό(ά)

FAO(Publication : search) | FishSource |

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Summary page | Σημειακά στοιχεία | Κοινά ονόματα | Photos

Διαδικτυακές πηγές

Estimates based on models

Preferred temperature (Ref. 115969): 25.7 - 29, mean 28 (based on 1126 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00389 (0.00138 - 0.01094), b=3.05 (2.82 - 3.28), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Τροφικό Επίπεδο (Ref. 69278): 3.6 ±0.50 se; based on food items.

Ελαστικότητα (Ref. 120179): Χαμηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού 4,5 - 14 έτη (Fec assumed to be <100).

Fishing Vulnerability (Ref. 59153): Very high vulnerability (90 of 100).

Price category (Ref. 80766): Low.

Glaucostegus typus (Anonymous[Bennett], 1830)