Ecology Summary - Gracilechinus acutus

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Ecology of Gracilechinus acutus

Main Ref.	Jennings, S., J. Lancaster, A. Woolmer and J. Cotter, 1999
Remarks	Circalittoral on sandy detrital bottom mixed with ooze (Ref. 106375). Occurs on organic detritus (Ref. 106379) and sandy silt substrata (Ref. 106379). Also on coralligenous habitat (Ref. 105982). Prefers to feed on brown algae Laminaria saccharina encrusted with the bryozoan Membranipora sp. based on experiment (Ref. 96310).

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 Gracilechinus acutus may be found.

Habitat

Substrate	Benthic: mobile; Soft Bottom: sand; silt; mud; ooze ( detritus, organic ); Hard Bottom: rocky;
Substrate Ref.	Agassiz, A., 1881
Special habitats	Other habitats: seamounts;
Special habitats Ref.	Agassiz, A., 1881

Associations

Acuan	Jennings, S., J. Lancaster, A. Woolmer and J. Cotter, 1999
Associations
Associated with
Association remarks
Parasitism

feeding

Feeding type
Feeding type Ref.
Feeding habit
Feeding habit Ref.

Trophic Level(s)

Estimation method	original sample		unfished population		Remark
Estimation method	Troph	s.e.	Troph	s.e.	Remark
From diet composition
From individual food items
Acuan

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