Structure of rhodolith beds from 4 to 55 meters deep along the southern coast of Espírito Santo State, Brazil

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dc.contributor.authorAmado-Filho, Gilberto M.
dc.contributor.authorManeveldt, Gavin
dc.contributor.authorManso, R.C.C.
dc.contributor.authorMarins-Rosa, B.V.
dc.contributor.authorPacheco, M.R.
dc.contributor.authorGuimarães, S.M.P.B.
dc.date.accessioned2014-07-30T20:05:27Z
dc.date.available2014-07-30T20:05:27Z
dc.date.issued2007
dc.description.abstractRhodoliths are one of the most extensive benthic communities of the Brazilian continental shelf, but their structure is poorly known. The richest marine flora of Brazil’s coastal zone is found in Espírito Santo State and its diversity has been partly associated with the presence of extensive areas of rhodoliths, extending from the intertidal zone to 120 m across the continental shelf. One species of kelp, Laminaria abyssalis, is endemic to this area and occurs between 45 and 120 m depth. Our objective was to determine the density and physical dimensions of the superficial rhodoliths between 4 and 55 m depth in the southern region of Espírito Santo State. The study area was 3 to 45 km offshore. Samples were obtained in 2004 and 2005 by Scuba diving in three depth zones: 4–18 m, 25–30 m and 50–55 m. Transect lines and video images were used to determine rhodolith density. The diameter and sphericity of at least 60 individuals from each zone were measured. Rhodolith size increased and density decreased from the shallow to the deeper zones. Spheroidal was the typical shape throughout the depth zones. Five rhodolith-forming genera were identified: Lithothamnion, Lithophyllum, Hydrolithon, Neogoniolithon and Sporolithon. Epibenthic biomass and species richness over the rhodolith bed in the shallow zone was lowest in winter, likely the result of disturbance caused by typical winter storms. Changes in light and temperature are probably the most important factors in the changes observed in the rhodolith beds from the deepest zones.en_US
dc.description.accreditationWeb of Scienceen_US
dc.identifier.citationAmado-Filho, G.M., et al. (2007). Structure of rhodolith beds from 4 to 55 meters deep along the southern coast of Espírito Santo State, Brazil. Ciencias Marinas, 33(4): 399-410en_US
dc.identifier.issn0185-3880
dc.identifier.urihttp://hdl.handle.net/10566/1143
dc.language.isoenen_US
dc.privacy.showsubmitterfalse
dc.publisherUniversidad Autónoma de Baja Californiaen_US
dc.rights© 2007 Amado-Filho, et al; licensee Universidad Autónoma de Baja California. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
dc.status.ispeerreviewedtrue
dc.subjectRhodolithsen_US
dc.subjectContinental shelfen_US
dc.subjectDistributionen_US
dc.subjectEpibenthic communityen_US
dc.titleStructure of rhodolith beds from 4 to 55 meters deep along the southern coast of Espírito Santo State, Brazilen_US
dc.typeArticleen_US

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