Ecology Summary - Petrosia ficiformis

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Ekologin hos Petrosia ficiformis

Main Ref.	Göthel, H., 1992
Anmärkningar	Habitat: Various rock funds, caves and cracks, generally beyond 5 m and until the great depths. Biology: coloring is related to the presence of symbiotic algae: the non exposed fabrics and the individuals living inside underwater excavations are clear, which is explained by the absence or the scarcity of these chlorophyllian algae. In all the other cases, these spongiae is of darker color. The dory Peltodoris atromaculata almost exclusively nourishes fabrics of this species, whose each colony is frequently the prey of many specimens. As for sponges while not comprising, it is not rare to detect these traces of bites in the form of prints faded in the extreme cases; only one Petrosia can be the prey of 40 mackled dory of all sizes (Ref. 358).

Main Ref.

Göthel, H., 1992

Anmärkningar

Habitat: Various rock funds, caves and cracks, generally beyond 5 m and until the great depths. Biology: coloring is related to the presence of symbiotic algae: the non exposed fabrics and the individuals living inside underwater excavations are clear, which is explained by the absence or the scarcity of these chlorophyllian algae. In all the other cases, these spongiae is of darker color. The dory Peltodoris atromaculata almost exclusively nourishes fabrics of this species, whose each colony is frequently the prey of many specimens. As for sponges while not comprising, it is not rare to detect these traces of bites in the form of prints faded in the extreme cases; only one Petrosia can be the prey of 40 mackled dory of all sizes (Ref. 358).

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	Flodmynningar/laguner/bräckta havsområden mangroves marshes/swamps	rivers/streams lakes/ponds Grottor exclusively in caves

Highighted items on the list are where Petrosia ficiformis may be found.

Habitat

Substrate	: sessile; Hard Bottom: rocky;
Substrate Ref.
Special habitats
Special habitats Ref.

Associations

Ref.	Göthel, H., 1992
Associations
Associated with
Association remarks
Parasitism

Föda

Typ av föda	mainly plants/detritus (troph. 2-2.19)
Feeding type Ref.	Ruppert, E.E., R.S. Fox and R.D. Barnes, 2004
Födosöksstrategi	filtering plankton
Feeding habit Ref.	Ruppert, E.E., R.S. Fox and R.D. Barnes, 2004

Trophic Level(s)

Estimation method	Ursprungligt prov		Ofiskad population		Kommentar
Estimation method	Troph	s.e.	Troph	s.e.	Kommentar
Från födosammansättning
Från individuella födoämnen
Ref.

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