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1. Asconema setubalense agreggation on bathyal rocky bottoms<br />
DESCRIPTION: Southwest of Portugal we have recorded fields of Asconema setubalense, always on hard<br />
substrate. Sometimes several species of gorgonians make up mixed fields with this sponge. For example,<br />
Viminella flagellum appears abundantly as part of the community in the Guadalquivir Bank, forming up<br />
mixed aggregations of Asconema setubalense and Viminella flagellum. This same thing happens in the<br />
Gorringe Bank with other species of gorgonians, Callogorgia verticillata.<br />
Many species of different unidentified demosponges can appear abundantly in some occasions, making<br />
part of this habitat.<br />
DEPTH: 325- 475 m<br />
TYPE OF SUBSTRATE: rocky, very sedimentary, sometimes even covered by a layer of sediment or on<br />
rocky outcrops on a sandy-rocky mixed seabed. They occupy flat and very steep areas.<br />
Asconema setubalense aggregations in Portuguese waters<br />
Aggregations of Asconema setubalense registered by OCEANA in the Canary Islands waters are larger<br />
and have more density than those found by this organization until today in the waters of the maritime area<br />
of OSPAR.<br />
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