Ecology of Hoplostethus atlanticus
| Main Ref. | Kailola, P.J., M.J. Williams, P.C. Stewart, R.E. Reichelt, A. McNee and C. Grieve, 1993 |
|---|---|
| Remarks | Found on the continental slope (Ref. 75154). Orange roughy feed opportunistically on bentho-pelagic and meso-pelagic fish, crustaceans, and squid. Juveniles feed mainly on crustaceans whereas adults prefer fish and squids. They appear to have moderately high rates of food consumption (Ref. 27075). Dietary changes may be linked to modifications in morphology with growth (Ref. 27076). Little is known of the larvae and juveniles, which do not appear to aggregate (Ref. 6390). |
Aquatic zones / Water bodies
| Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
|---|---|---|---|---|
| Marine zones / Brackish and freshwater bodies |
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Habitat
| Substrate | Hard Bottom; |
|---|---|
| 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. | Kailola, P.J., M.J. Williams, P.C. Stewart, R.E. Reichelt, A. McNee and C. Grieve, 1993 |
| Feeding habit | hunting macrofauna (predator) |
| Feeding habit Ref. | Kailola, P.J., M.J. Williams, P.C. Stewart, R.E. Reichelt, A. McNee and C. Grieve, 1993 |
Trophic Level(s)
| Estimation method | Original sample | Unfished population | Bemerkung | ||
|---|---|---|---|---|---|
| Troph | s.e. | Troph | s.e. | ||
| From diet composition | 4.25 | 0.12 | Troph of adults from 17 studies. | ||
| From individual food items | 3.87 | 0.84 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
| Ref. | Bulman, C.M. and J.A. Koslow, 1992 | ||||