Main Ref. | Arana, P.M.E. and M.A. Retamal, 1999 |
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Remarks | Restricted to deeper waters (Ref. 2786). Intraspecific predation observed in its early stages (Ref. 104081). Juveniles are observed to form aggregations known as "pods" on large kelp Macrocystis pyrifera. Young individuals are found around the holdfasts and stipes of this kelp (Ref. 104212) as well as on rocky bottoms in the subtidal nearshore (Ref. 104371). Juveniles are voracious and opportunistic omnivorous predators (Ref. 104371). Scavenger and predator (Ref. 113323). Also in Ref. 78676. |
Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
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Marine zones / Brackish and freshwater bodies |
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Substrate | Benthic: mobile; |
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Substrate Ref. | Macpherson, E., 2004 |
Special habitats | |
Special habitats Ref. |
Ref. | Stevens, B.G., 2014 |
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Associations | parasitism; commensalism; |
Associated with | Pseudione tuberculata, Briarosaccus callosus (parasitism); Careproctus sp. (commensalism). |
Association remarks | Small juveniles are reported without a protuberance containing immature P. tuberculata. The liparid fish Careproctus sp. (Scorpaeniformes) lay their egg masses inside the gill chamber (Ref. 113901). |
Parasitism |
Feeding type | mainly animals (troph. 2.8 and up) |
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Feeding type Ref. | Saborowski, R., S. Thatje, J.A. Calcagno, G.A. Lovrich and K. Anger, 2006 |
Feeding habit | variable |
Feeding habit Ref. | Saborowski, R., S. Thatje, J.A. Calcagno, G.A. Lovrich and K. Anger, 2006 |
Estimation method | original sample | unfished population | Remark | ||
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Troph | s.e. | Troph | s.e. | ||
From diet composition | |||||
From individual food items | 3.71 | 0.40 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
Ref. |