Main Ref. | Fitch, J.E. and R.J. Lavenberg, 1975 |
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Remarks | Permanent tidepool resident , occupies the upper intertidal pools during cool hours and remains in lower pools during periods when temperature becomes stressful (Ref. 45794). Often among intertidal algae. May leave tide pools if aquatic conditions become inhospitable (Ref. 31184). Breathes air when out of water (Ref. 31184). |
Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
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Marine zones / Brackish and freshwater bodies |
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Substrate | |
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Substrate Ref. | |
Special habitats | |
Special habitats Ref. |
Ref. | |
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Association remarks | |
Parasitism |
Feeding type | mainly animals (troph. 2.8 and up) |
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Feeding type Ref. | Fitch, J.E. and R.J. Lavenberg, 1975 |
Feeding habit | hunting macrofauna (predator) |
Feeding habit Ref. | Boyle, K.S. and M.H. Horn, 2006 |
Estimation method | Original sample | Unfished population | Remark | ||
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Troph | s.e. | Troph | s.e. | ||
From diet composition | 3.08 | 0.26 | Troph of juv./adults from 1 study. | ||
From individual food items | 2.97 | 0.39 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
Ref. | Boyle, K.S. and M.H. Horn, 2006 |