Ecology Summary - Hypopygus nijsseni
Ecology of Hypopygus nijsseni
 
Main Ref. de Santana, C.D. and W.G.R. Crampton, 2011
Remarks In the Tefé region H. nijsseni was found rarely in small rainforest streams (approximately 1–4 m across and up to 1.5 m deep), where it was found in marginal roots and submerged structures, near conspecifics. A single specimen was found in shallow flooded forest in the floodplain of the Rio Tefé, in the lower reaches of a terra firme stream. Stomach contents (N = 5) contained only autochthonous aquatic invertebrates – mostly Chironomidae larvae, but also the larvae of Ephemeroptera, Coleoptera, and Trichoptera. Hypopygus nijsseni co-occurs syntopically with themuch more abundant H. lepturus without any obvious partitioning of microhabitat or diet.

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 Hypopygus nijsseni may be found.

Habitat

Substrate
Substrate Ref.
Special habitats
Special habitats Ref.

Associations

Ref.
Associations
Associated with
Association remarks
Parasitism

Feeding

Feeding type mainly animals (troph. 2.8 and up)
Feeding type Ref. de Santana, C.D. and W.G.R. Crampton, 2011
Feeding habit hunting macrofauna (predator)
Feeding habit Ref. de Santana, C.D. and W.G.R. Crampton, 2011
Trophic Level(s)
Estimation method Original sample Unfished population Remark
Troph s.e. Troph s.e.
From diet composition
From individual food items
Ref.
(e.g. 9948)
(e.g. oophagy)
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