Ecology Summary - Hydractinia pacifica

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Ecology of Hydractinia pacifica

Main Ref.	Häussermann, V. and G. Försterra, 2009
Remarks	This is found on polychaete tubes and small colonies may be found on other hydroids, Plumularia setacea, Symplectoscyphus sp., Lafoea dumosa and Bougainvillia muscus. It inhabits depths of 5 to 25 m (Ref. 87801).

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 Hydractinia pacifica may be found.

Habitat

Substrate	Benthic;
Substrate Ref.	Häussermann, V. and G. Försterra, 2009
Special habitats	Other habitats: other invertebrates (Plumularia setacea, Symplectoscyphus sp., Lafoea dumosa and Bougainvillia muscus (Ref. 87801).);
Special habitats Ref.	Häussermann, V. and G. Försterra, 2009

Associations

Ref.	Häussermann, V. and G. Försterra, 2009
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
Ref.