Ecology Summary - Optivus elongatus
Ecology of Optivus elongatus
 
Main Ref. Russell, B.C., 1983
Remarks Is active at night; stays in cracks and crevices during the day. Feeds on small mobile benthic organisms (Ref. 26966), by drifting up to its prey and swallowing it whole with a sideways snap of the large extensible mouth (Ref. 26966).

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 Optivus elongatus may be found.

Habitat

Substrate Hard Bottom;
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. Russell, B.C., 1983
Feeding habit hunting macrofauna (predator)
Feeding habit Ref. Russell, B.C., 1983
Trophic Level(s)
Estimation method Original sample Unfished population Remark
Troph s.e. Troph s.e.
From diet composition 3.49 0.49 3.66 0.67 Troph of juv./adults from 1 study.
From individual food items 3.50 0.37 Tentative trophic level derived from 1 + troph of a single food item
Ref. Russell, B.C., 1983
(e.g. 9948)
(e.g. oophagy)
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