Ecology Summary - Idotea granulosa

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Ecology of Idotea granulosa

Main Ref.	Healy, B., 1997
Remarks	It is epifaunal on eelgrass beds (Ref. 95819). Also inhabits the brown alga Ascophyllym nodosum. Mesoherbivore. Adults graze on the meristematic apices of A. nodosum while small individuals graze on the same alga and its macroepiphytes, preferring the latter (Ref. 104685).

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 Idotea granulosa may be found.

Habitat

Substrate	Benthic: mobile;
Substrate Ref.
Special habitats	Beds: algae/seaweed; sea grass;
Special habitats Ref.	Boström, C. and E. Bonsdorff, 1997

Associations

Ref.
Associations
Associated with
Association remarks
Parasitism

feeding

Feeding type	mainly plants/detritus (troph. 2-2.19)
Feeding type Ref.	Norling, P. and N. Kautsky, 2008
Feeding habit	grazing on aquatic plants
Feeding habit Ref.	Norling, P. and N. Kautsky, 2008

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	2.00	0.00			Trophic level and s.e. inferred from exclusive plant/detritus food items.
Ref.

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