Κύρια Αναφ. | Johnson, J.H. and D.S. Dropkin, 1993 |
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Σχόλια | Inhabit sandy and rocky pools and runs of small to large rivers. Also found in sandy and rocky shores of lakes and in creeks on Atlantic Slope. |
Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
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Marine zones / Brackish and freshwater bodies |
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Substrate | Soft Bottom: sand; Hard Bottom: rocky; rubble; |
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Substrate Ref. | Page, L.M. and B.M. Burr, 1991 |
Special habitats | |
Special habitats Ref. |
Αναφ. | |
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Associations | |
Associated with | |
Association remarks | |
Parasitism |
Τροφικός Τύπος | plants/detritus+animals (troph. 2.2-2.79) |
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Feeding type Ref. | Johnson, J.H. and D.S. Dropkin, 1993 |
Τροφική Συνήθεια | variable |
Feeding habit Ref. |
Estimation method | Αρχικό δείγμα | Μη αλιευμένος πληθυσμός | Σχόλιο | ||
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Troph | s.e. | Troph | s.e. | ||
Από σύσταση δίαιτας | 2.11 | 0.09 | 2.66 | 0.21 | Troph of adults from 2 studies. |
Από ατομικά τροφικά αντικείμενα | 2.74 | 0.26 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
Αναφ. | Johnson, J.H. and D.S. Dropkin, 1993 |