| Main Ref. | Arana, P.M.E. and M.A. Retamal, 1999 |
|---|---|
| Remarks | Juveniles are found attached to holdfasts of Macrocystis sp. providing them with mechanical shelter. While adults are found in sheltered inshore waters with soft and hard bottoms (Ref. 87801). |
| Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
|---|---|---|---|---|
| Marine zones / Brackish and freshwater bodies |
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| Substrate | Benthic; Soft Bottom Hard Bottom; |
|---|---|
| Substrate Ref. | |
| Special habitats | vegetation ( roots/holdfast, ); |
| Special habitats Ref. | Häussermann, V. and G. Försterra, 2009 |
| Ref. | Stevens, B.G., 2014 |
|---|---|
| Associations | parasitism; |
| Associated with | bopyrid isopod Pseudione tuberculata; Briarosaccus callosus (parasitism), liparid fish Careproctus sp. (commensalism). |
| Association remarks | Pseudione tuberculata invade host P. granulosa at an early crab stage and remain infesting until the parasite dies. The liparid fish Careproctus sp. (Scorpaeniformes) lay their egg masses inside the gill chamber (Ref. 113901). |
| Parasitism | inside host (resides on the left branchial chamber (rarely in the right); produces a conspicuous bulge on the carapace (Ref. 113901).) |
| Feeding type | mainly animals (troph. 2.8 and up) |
|---|---|
| Feeding type Ref. | Comoglio, L.I. and O.A. Amin, 1999 |
| Feeding habit | hunting macrofauna (predator) |
| Feeding habit Ref. | Comoglio, L.I. and O.A. Amin, 1999 |
| Estimation method | original sample | unfished population | Remark | ||
|---|---|---|---|---|---|
| Troph | s.e. | Troph | s.e. | ||
| From diet composition | |||||
| From individual food items | 3.65 | 0.22 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
| Ref. | |||||