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4. Axinella spp. aggregation on upper circalittoral rocky bottom<br />
DESCRIPTION: OCEANA has recorded two species of the genus Axinella creating large aggregations: A.<br />
dissimilis and A. polypoides.<br />
Species like Eunicella verrucosa and/or Phakellia ventilabrum and/or Artemisina transiens form up large<br />
facies that mix with aggregations of these species. Other common species in this habitat is Holothuria<br />
forskali.<br />
Although these fields are formed on the shallowest area of the circalittoral zone, the bathymetric<br />
distribution of this species is broader, so its presence can be registered in less deep areas. Although they<br />
are not considered large aggregations that should therefore be included in this report, we would like to<br />
highlitgh the presence of large facies of Axinella dissimilis on seabed and rocky walls at a depth of 25<br />
metres.<br />
DEPTH: 50 - 64m<br />
TYPE OF SUBSTRATE: on rocky subtrate, partial or totally covered by sand or on rock in sandy-rocky<br />
mixed seabed.<br />
Axinella spp. aggregations on upper circalittoral rocky bottom in the galaico-cantabrian area (North of Spain).<br />
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