Ecology Summary - Plectroglyphidodon johnstonianus
Ecology of Plectroglyphidodon johnstonianus
 
Main Ref. Sano, M., M. Shimizu and Y. Nose, 1984
Remarks Common in outer reefs and passages, frequently associated with Acropora, Stylophora, or Pocillopora coral heads or a single head of Pocillopora eydouxi. Feeds on benthic algae and probably coral polyps. Diurnal species (Ref. 13550).

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 Plectroglyphidodon johnstonianus may be found.

Habitat

Substrate Hard Bottom: rocky;
Substrate Ref. Letourneur, Y., P. Chabanet, P. Durville, M. Taquet, E. Teissier, M. Parmentier, J.-C. Quéro and K. Pothin, 2004
Special habitats Coral Reefs;
Special habitats Ref. Nguyen, N.T. and V.Q. Nguyen, 2006

Associations

Ref.
Associations
Associated with
Association remarks
Parasitism

Feeding

Feeding type mainly animals (troph. 2.8 and up)
Feeding type Ref. Sano, M., M. Shimizu and Y. Nose, 1984
Feeding habit hunting macrofauna (predator)
Feeding habit Ref. Sano, M., M. Shimizu and Y. Nose, 1984
Trophic Level(s)
Estimation method Original sample Unfished population Remark
Troph s.e. Troph s.e.
From diet composition 3.35 0.59 3.31 0.53 Troph of juv./adults from 1 study.
From individual food items 2.90 0.49 Trophic level estimated from a number of food items using a randomized resampling routine.
Ref. Sano, M., M. Shimizu and Y. Nose, 1984
(e.g. 9948)
(e.g. oophagy)
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