| Main Ref. | Hochberg, F.G. and Y.E. Camacho-García, 2009 | 
|---|---|
| Remarks | Epipelagic (Ref. 83938). Females use the shell to trap air, gathered at the sea surface, to attain neutral buoyancy (Ref. 96968). Few shells found washed up on beaches (Ref. 88739). | 
| Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
|---|---|---|---|---|
| Marine zones / Brackish and freshwater bodies | 
 | 
 | 
 | 
 | 
| Substrate | Pelagic; | 
|---|---|
| Substrate Ref. | Hochberg, F.G. and Y.E. Camacho-García, 2009 | 
| Special habitats | Other habitats: other invertebrates (Refer to associations.); | 
| Special habitats Ref. | 
| Ref. | Roper, C.F.E., M.J. Sweeney and C.E. Nauen, 1984 | 
|---|---|
| Associations | symbiosis; | 
| Associated with | gelatinous zooplankton (Ref. 98617). | 
| Association remarks | The argonaut was observed to be grasping to the aboral surface of a scyphomedusa near the surface while feeding on its gastral cavity; the cnidarian may confer shelter, protection or camouflage against predators (Ref. 98617). | 
| Parasitism | 
| Feeding type | mainly animals (troph. 2.8 and up) | 
|---|---|
| Feeding type Ref. | |
| Feeding habit | hunting macrofauna (predator) | 
| Feeding habit Ref. | 
| Estimation method | original sample | unfished population | Remark | ||
|---|---|---|---|---|---|
| Troph | s.e. | Troph | s.e. | ||
| From diet composition | |||||
| From individual food items | 4.50 | 0.10 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
| Ref. | |||||