Main Ref. | Boujard, T., P. Keith and P. Luquet, 1990 |
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Anmärkningar | Occurs among cobbles and rocks in swiftly flowing water. Active at night, feeding on benthic stream invertebrates such as mayfly and midge larvae (Ref 3813). Opportunistic predator with large prey comsuming larger prey from a variety of taxonomic groups (Ref. 51405). |
Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
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Marine zones / Brackish and freshwater bodies |
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Substrate Ref. | |
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Parasitism |
Typ av föda | mainly animals (troph. 2.8 and up) |
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Feeding type Ref. | Boujard, T., P. Keith and P. Luquet, 1990 |
Födosöksstrategi | hunting macrofauna (predator) |
Feeding habit Ref. | Boujard, T., P. Keith and P. Luquet, 1990 |
Estimation method | Ursprungligt prov | Ofiskad population | Kommentar | ||
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Troph | s.e. | Troph | s.e. | ||
Från födosammansättning | |||||
Från individuella födoämnen | 3.20 | 0.40 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
Ref. | Marriott, M.S., A.J. Booth and P.H. Skelton, 1997 |