Ecology of Bathyraja spinicauda
 
Main Ref. McEachran, J.D. and K.A. Dunn, 1998
Remarks An inhabitant of deep, cold water (Ref. 7251). Feeds on Mallotus villosus (capelin) and Raja radiata (thorny skate) (Ref. 5951). Found in water temperatures between -1.5°C to 7.5°C, appearing frequently under 3°C. Recorded at depths between 111-2949m. Dwells in deep slopes and abyssal habitats likely over muddy, silty, and sandy substrates. Feeds at a trophic level of 4.02 (Ref. 117245).

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 Bathyraja spinicauda may be found.

Habitat

Substrate Benthic; Soft Bottom: sand; silt; mud;
Substrate Ref. Coad, B.W. and J.D. Reist, 2018
Special habitats
Special habitats Ref.

Associations

Ref.
Associations shoaling;
Associated with
Association remarks Shoaling assumed, by way of spawning aggregations, based on observations of several large (>150 cm TL) females of this species from the edge of the Labrador Shelf that were found to have stretched oviducts, and fully formed egg cases, indicating that reproduction takes place in that area (Ref. 94893).
Parasitism

Feeding

Feeding type mainly animals (troph. 2.8 and up)
Feeding type Ref. Stehmann, M. and D.L. Bürkel, 1984
Feeding habit hunting macrofauna (predator)
Feeding habit Ref. Stehmann, M. and D.L. Bürkel, 1984
Trophic Level(s)
Estimation method Original sample Unfished population Remark
Troph s.e. Troph s.e.
From diet composition 4.41 0.62 Troph of juv./adults from 1 study.
From individual food items 3.79 0.62 Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.
(e.g. 346)
(e.g. cnidaria)
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