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Beuck & Freiwald, 2005

Bioerosion patterns in a deep-water Lophelia pertusa (Scleractinia) thicket (Propeller Mound, northern Porcupine Seabight)

Beuck, L., Freiwald, A.
DOI10.1007/3-540-27673-4_47
Aasta2005
RaamatCold-Water Corals and Ecosystems
Toimetaja(d)Freiwald, A., Roberts J.M.
KirjastusSpringer-Verlag
Kirjastuse kohtBerlin, Heidelberg
Leheküljed915-936
Id10257

Abstrakt

This study focuses on bioerosion of an aphotic deep-water coral mound, the Propeller Mound, in the northern Porcupine Seabight. The predominant framework builder is the cosmopolitan cold-water coral Lophelia pertusa. We demonstrate bioerosion patterns within the skeleton of L. pertusa using a new embedding method under vacuum conditions with subsequent scanning electron microscope analysis. Following this method, 23 ichnospecies are documented and related to heterotrophic organism groups such as Bacteria (1), Fungi (12), Bryozoa (1), Foraminifera (3), and Porifera (6). Predominant endolithic sponges in the framework of L. pertusa are Alectona millari and Spiroxya heteroclita. Owing to its characteristic growth and surface ornamentation, trace casts of Spiroxya heteroclita are correlated to the well-known trace fossil Entobia laquea.
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