Geodia and other massive sponges on Atlanto-Arctic upper bathyal mixed sediment.

Ellen K. Last, Matthew Ferguson, Natalia Serpetti, Bhavani Narayanaswamy, David Hughes

Research output: Book/ReportCommissioned report

Abstract

This biotope has been found at approximately 500 m on the eastern slopes of the Faroe-Shetland Channel. It consists principally of rather small sponge specimens but that practically carpet the seafloor. Large sponges (tens of centimetres in diameter) are, however, common. The area where the community is observed experiences temperature fluctuations between <0°C to >8°C and heightened current speeds as a result of internal tides between Arctic and Atlantic environmental data. This assemblage is also known as Boreal 'Ostur'. The same assemblage was recorded on sand substratum, but associated infaunal species are likely to differ. Characterizing species listed refer to all Geodia and other massive sponge assemblages not just those found associated with the zone and substratum specified in this biotope. (Information from JNCC, 2015; Parry et al., 2015).
Original languageEnglish
PublisherMarine Biological Association of the United Kingdom, Plymouth
Number of pages30
Publication statusPublished - 9 Jan 2020

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