প্রধান সুত্র | Gallivan, G. and J. Danforth, 1999 |
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মন্তব্য সমূহ | Habitat: Occurs in the high intertidal zone, on vertical and underside of rocks at low tide (Ref. 312); common in the high rocky intertidal zone and are typically found on vertical and overhanging rock faces and infrequently in tide pools; occasionally it is also found living on the goose-neck barnacle Pollicipes polymerus (Refs. 310, 95344). Inhabits deep cracks and crevices (Ref. 95344). Diet: microscopic films of algae; encrusting diatoms (Ref. 312). Behavior: Feeds at high tide when submerged. When exposed it becomes less active and attaches itself to the rock below usually with the anterior portion of their shell pointed down. It has the ability to secrete a mucus between its foot and shell that serves to secure on to the rock below and prevent desiccation and dislodgement. When exposed the heart and respiration rate also decreases. Respiration occurs through both a vascularized mantle fold and a single gill; in aggregate groups of 44 individuals. Predator: shorebirds and the crab Pachygraspsus crassipes (Ref. 312). |
Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
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Marine zones / Brackish and freshwater bodies |
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Substrate | Benthic: demersal; Hard Bottom: rocky; |
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Substrate Ref. | |
Special habitats | Other habitats: other invertebrates (In empty barnacle shells (Ref. 95344).); |
Special habitats Ref. | Harbo, R.M., 1997 |
সূত্র | Gallivan, G. and J. Danforth, 1999 |
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Associations | |
Associated with | |
Association remarks | |
Parasitism |
খাওয়ানোর ধরণ | |
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Feeding type Ref. | |
খাদ্যাভ্যাস | |
Feeding habit Ref. |
Estimation method | মূল নমুনা | অমাৎস্য প্রজন | মন্তব্য | ||
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Troph | s.e. | Troph | s.e. | ||
খাদ্যউপাদান হইতে | |||||
পৃথক খাদ্য সামগ্রী হইতে | |||||
সূত্র |