Ecology of Himantura uarnak
 
Main Ref. Fricke, R., 1999
Remarks Common off sandy beaches and in shallow estuaries and lagoons; also found in sandy areas of coral reefs (Ref. 9710). Found on the continental shelf (Ref. 75154). Also offshore down to 50 m depth (Ref. 5578). May enter fresh water (Ref. 5578). Feeds on small fishes, bivalves, crabs, shrimps and worms.

Aquatic zones / Water bodies

Marine - Neritic Marine - Oceanic Brackishwater Freshwater
Marine zones / Brackish and freshwater bodies
  • supra-littoral zone
  • littoral zone
  • sublittoral zone
  • epipelagic
  • mesopelagic
  • epipelagic
  • abyssopelagic
  • hadopelagic
  • estuaries/lagoons/brackish seas
  • mangroves
  • marshes/swamps
  • rivers/streams
  • lakes/ponds
  • caves
  • exclusively in caves
Highighted items on the list are where Himantura uarnak may be found.

Habitat

Substrate Benthic;
Substrate Ref.
Special habitats Coral Reefs;
Special habitats Ref.

Associations

Ref.
Associations
Associated with
Association remarks
Parasitism

Feeding

Feeding type mainly animals (troph. 2.8 and up)
Feeding type Ref. Compagno, L.J.V., 1986
Feeding habit hunting macrofauna (predator)
Feeding habit Ref. Compagno, L.J.V., 1986

Trophic Level(s)

Estimation method Original sample Unfished population Remark
Troph s.e. Troph s.e.
From diet composition 3.60 0.59 Troph of juv./adults from 1 study.
From individual food items 3.67 0.57 Trophic level estimated from a number of food items using a randomized resampling routine.
Ref. Nasir, N.A., 2000
(e.g. 346)
(e.g. cnidaria)
Entered by Sta. Iglesia, Drina on 11.10.00
Modified by OrtaƱez, Auda Kareen on 08.08.08
Checked by Sta. Iglesia, Drina on 05.25.01
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