Ecology of Hologymnosus annulatus
 
Main Ref. Randall, J.E., G.R. Allen and R.C. Steene, 1990
Remarks Occur inshore (Ref. 75154). Found on coral reefs and rocky substrates to depths of at least 30 m. Juveniles generally solitary (Ref. 9710). Feed primarily on small fishes, also on crustaceans.

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 Hologymnosus annulatus may be found.

Habitat

Substrate : sand; Hard Bottom: rocky; rubble;
Substrate Ref. Broad, G., 2003
Special habitats Coral Reefs;
Special habitats Ref. Nguyen, N.T. and V.Q. Nguyen, 2006

Associations

Ref.
Associations
Associated with
Association remarks
Parasitism

Feeding

Feeding type mainly animals (troph. 2.8 and up)
Feeding type Ref. Randall, J.E., G.R. Allen and R.C. Steene, 1990
Feeding habit hunting macrofauna (predator)
Feeding habit Ref. Randall, J.E., G.R. Allen and R.C. Steene, 1990
Trophic Level(s)
Estimation method Original sample Unfished population Remark
Troph s.e. Troph s.e.
From diet composition
From individual food items 4.20 0.73 Tentative trophic level derived from 1 + troph of a single food item
Ref.
(e.g. 346)
(e.g. oophagy)
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