| Main Ref. | Cortés, E., 1999 |
|---|---|
| Bemerkungen | An uncommon primitive shark (Ref. 26346) found on outer continental and insular shelves and upper slopes, usually between 120 and 1,280 m but occasionally caught at the surface (Ref. 247). Feeds on other sharks, squid and bony fish (Ref. 26346). Previously thought to be bathypelagic. Dwells in sandy substrates. Observed at a water temperature of 4.28°C (expands previous records of 7°C to 12°C) and salinity of 34.99 psu (Ref. 128337). |
| Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
|---|---|---|---|---|
| Marine zones / Brackish and freshwater bodies |
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| Substrat | Benthic; Pelagic; Soft Bottom: sand; |
|---|---|
| Substrat Ref. | Sedberry, G.R., H.S. Meister and J.K. Loefer, 2007 |
| Besondere Lebensräume | |
| Besondere Lebensräume Ref. |
| Ref. | |
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| Verbände | |
| Assoziiert mit | |
| Bemerkungen der Vereinigung | |
| Parasitismus |
| Art der Fütterung | mainly animals (troph. 2.8 and up) |
|---|---|
| Fütterungsart Ref. | Cortés, E., 1999 |
| Fütterungsgewohnheit | hunting macrofauna (predator) |
| Fütterungsgewohnheiten Ref. | Macpherson, E., 1989 |
| Estimation method | Ursprüngliche Probe | Ungefischte Bevölkerung | Bemerkung | ||
|---|---|---|---|---|---|
| Troph | s.e. | Troph | s.e. | ||
| Von der Zusammensetzung der Ernährung | 4.21 | 0.36 | 4.10 | 0.42 | Troph of juv./adults from 1 study. |
| Von einzelnen Lebensmitteln | 4.50 | 0.41 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
| Ref. | Cortés, E., 1999 | ||||