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Ecology of Heterodontus francisci
 
Main Ref. Cortés, E., 1999
Remarks Sluggish, nocturnal, and mostly solitary species. Inhabits rocky bottoms, kelp beds, sandy draws between rocks, on sand flats, deep crevices and small caves and also large underwater caverns. Adults tend to return to the same resting place every day (Ref. 43278). Feeds on benthic invertebrates, especially sea urchins, crabs and probably abalone, also fishes. Also in Ref. 9137.

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 Heterodontus francisci may be found.

Habitat

Substrate
Substrate Ref.
Special habitats
Special habitats Ref.

Associations

Ref.
Associations
Associated with
Association remarks
Parasitism

Feeding

Feeding type mainly animals (troph. 2.8 and up)
Feeding type Ref. Cortés, E., 1999
Feeding habit hunting macrofauna (predator)
Feeding habit Ref.
Trophic Level(s)
Estimation method Original sample Unfished population Remark
Troph s.e. Troph s.e.
From diet composition 3.20 0.32 3.18 0.39 Troph of juv./adults from 1 study.
From individual food items 3.60 0.54 Trophic level estimated from a number of food items using a randomized resampling routine.
Ref. Cortés, E., 1999
(e.g. 346)
(e.g. oophagy)
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