Ecology of Amblyraja hyperborea
| Main Ref. | McEachran, J.D. and K.A. Dunn, 1998 |
|---|---|
| Remarks | Dwells over silty subtrates at depths from 167-1600m. Found in water temperatures between -0.08°C to 3.5°C. Common along upper continental slopes 800-1500 m in the east Norwegian Sea. Benthic feeder, feeding at trophic levels of 3.98 (Ref. 117245). Found on the continental slope (Ref. 75154), reaching bathyal and abyssal depths in the Arctic region (Ref. 119696). Feeds on all kinds of bottom animals. |
Aquatic zones / Water bodies
| Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
|---|---|---|---|---|
| Marine zones / Brackish and freshwater bodies |
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Habitat
| Substrate | Benthic; Soft Bottom: silt; |
|---|---|
| Substrate Ref. | Coad, B.W. and J.D. Reist, 2018 |
| 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. | 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 | 4.31 | 0.54 | Troph of juv./adults from 2 studies. | ||
| From individual food items | 3.93 | 0.56 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
| Ref. | |||||