Ecology of Siganus spinus
 
Main Ref. Woodland, D.J., 1990
Distribution
Marine - Neritic
  • supra-littoral zone
  • littoral zone
  • sublittoral zone
Marine - Oceanic
  • epipelagic
  • mesopelagic
  • epipelagic
  • abyssopelagic
  • hadopelagic
Brackishwater
  • estuaries/lagoons/brackish seas
  • mangroves
  • marshes/swamps
Freshwater
  • rivers/streams
  • lakes/ponds
  • caves
  • exclusively in caves
Highighted items on the list are where Siganus spinus may be found.
Remarks Postlarval & presumably the larval as well, are pelagic, live in dense schools away from the reefs in open water; presumed to feed on plankton. At an average size of 43 mm TL in spring, they perform highly synchronized mass migration onto the shoal areas of coral reefs. These small juveniles feed on finer textured algae (e.g. filamentous). As they mature, they ingest the coarser filamentous & fleshy algae, avoiding the blue-greens. Gross assimilation efficiency low; mean of 36% in juveniles, 16% in adults. This species is the smallest siganid; growth rate considerably low; hence, deemed not suitable for aquaculture.

Substrate

Substrate
Substrate Ref.
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 plants/detritus (troph. 2-2.19)
Feeding type ref Sano, M., M. Shimizu and Y. Nose, 1984
Feeding habit browsing on substrate
Feeding habit ref Sano, M., M. Shimizu and Y. Nose, 1984
Trophic level(s)
Original sample Unfished population Remark
Estimation method Troph s.e. Troph s.e.
From diet composition 2.00 0.00
Ref. Sano, M., M. Shimizu and Y. Nose, 1984
From individual food items 2.04 0.03 Trophic level estimated from a number of food items using a randomized resampling routine.
(e.g. 346)
(e.g. cnidaria)
Entered by Capuli, Estelita Emily on 09.16.91
Modified by OrtaƱez, Auda Kareen on 09.04.07
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