| Main Ref. | Gallivan, G. and J. Danforth, 1999 |
|---|---|
| Remarks | Occurs in the middle to high intertidal zone (Ref. 312); common from the low to mid-intertidal; the largest individuals are found lower on the shore farthest from effect of wave action (Ref. 310). Non-selective herbivores, consuming a wide variety of algae (Ref. 312). Commonly found in mussel beds and associated with brown algae (e.g., the sea palm, Postelsia) |
| Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
|---|---|---|---|---|
| Marine zones / Brackish and freshwater bodies |
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| Substrate | Benthic; |
|---|---|
| Substrate Ref. | |
| Special habitats | Beds: bivalve; |
| Special habitats Ref. | Harbo, R.M., 1997 |
| Ref. | Gallivan, G. and J. Danforth, 1999 |
|---|---|
| Associations | commensalism; |
| Associated with | Postelsia (Ref. 95344). |
| Association remarks | |
| Parasitism |
| Feeding type | |
|---|---|
| Feeding type Ref. | |
| Feeding habit | grazing on aquatic plants |
| Feeding habit Ref. |
| Estimation method | original sample | unfished population | Remark | ||
|---|---|---|---|---|---|
| Troph | s.e. | Troph | s.e. | ||
| From diet composition | |||||
| From individual food items | |||||
| Ref. | |||||