Ecology of Pinna bicolor
Main Ref. Poutiers, J.M., 1998
Remarks Embedded in muddy sand and reef flats, in littoral and adjacent subtidal shallow waters to depths of about 10 m (Ref. 348). Also found buried in hard substratum and associated with seagrass beds (Ref. 101119). Planktonic larval stage probably short, hence a range restricted to the shores of continental areas and adjacent island (Ref. 348). Small benthic Pinna may likely depend on dissolved organic matter for nutrition (Ref. 107096).

Aquatic zones / Water bodies

Marine - Neritic Marine - Oceanic Brackishwater Freshwater
Marine zones / Brackish and freshwater bodies
  • supra-littoral zone
  • littoral zone
  • sublittoral zone
  • epipelagic
  • mesopelagic
  • epipelagic
  • abyssopelagic
  • hadopelagic
  • estuaries/lagoons/brackish seas
  • mangroves
  • marshes/swamps
  • rivers/streams
  • lakes/ponds
  • caves
  • exclusively in caves
Highighted items on the list are where Pinna bicolor may be found.


Substrate Benthic: endofauna (infauna); Soft Bottom: sand; mud; Hard Bottom: rocky;
Substrate Ref. Chou, L.M. and K.S. Tan, 2008
Special habitats Beds: sea grass; Coral Reefs: reef flats;
Special habitats Ref. Poutiers, J.M., 1998


Ref. Poutiers, J.M., 1998
Associated with zoanthids and a soft coral (Ref. 101119).
Association remarks


Feeding type mainly plants/detritus (troph. 2-2.19)
Feeding type Ref. Ruppert, E.E., R.S. Fox and R.D. Barnes, 2004
Feeding habit filtering plankton
Feeding habit Ref. Ruppert, E.E., R.S. Fox and R.D. Barnes, 2004

Trophic Level(s)

Estimation method original sample unfished population Remark
Troph s.e. Troph s.e.
From diet composition
From individual food items
(e.g. 9948)
(e.g. cnidaria)
Entered by Sorongon-Yap, Patricia on 02.21.06
Modified by Polido, Rubyann Robelle on 03.31.16
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