caa a22 4500 445891327 CHVBK 20180317145617.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s10750-010-0527-x doi (NATIONALLICENCE)springer-10.1007/s10750-010-0527-x Patterns of abundance and assemblage structure of epifauna inhabiting two morphologically different kelp holdfasts [Elektronische Daten] [Fernando Tuya, Kim Larsen, Verena Platt] The mobile fauna associated with two sympatric kelp species with different holdfast morphology (Saccorhiza polyschides and Laminaria hyperborea) was compared to test for differences in the assemblage structure of holdfast-associated mobile epifauna. A total of 24,140 epifaunal individuals were counted from 30 holdfasts of each kelp species. Overall epifaunal abundances exceeded faunal abundances previously reported from holdfasts of other kelps. Three taxonomic groups, Amphipoda, Mollusca, and Polychaeta, accounted for ca. 85% of all individuals. Total abundances increased with the amount of habitat available, quantified either as the volume or the area provided by the holdfasts. The multivariate structure of the epifaunal assemblage did not differ between holdfasts of the two kelp species. However, epifaunal assemblages responded differentially to the habitat attributes provided by each type of kelp holdfast: multivariate variation in the assemblage structure of epifauna was mostly explained by holdfast area and volume for L. hyperborea, and by the surface-to-volume ratio for S. polyschides holdfasts. Therefore, the physical attributes of biogenic habitats, here kelp holdfasts that better predict patterns in the assemblage structure of associated fauna can differ according to their different physical morphology, even though the overall assemblage structure of associated fauna was similar. Springer Science+Business Media B.V., 2010 Kelp holdfast nationallicence Saccorhiza polyschides nationallicence Laminaria hyperborea nationallicence Epifauna nationallicence Assemblage structure nationallicence Habitat complexity nationallicence Tuya Fernando CIIMAR, Rua dos Bragas 289, 4050-123, Porto, Portugal aut Larsen Kim CIIMAR, Rua dos Bragas 289, 4050-123, Porto, Portugal aut Platt Verena Department of Biology II, Ecology, Ludwig-Maximilians-University Munich, Grosshaderner Str. 2, 82152, Planegg-Martinsried, Germany aut Hydrobiologia Springer Netherlands 658/1(2011-01-01), 373-382 0018-8158 658:1<373 2011 658 10750 https://doi.org/10.1007/s10750-010-0527-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10750-010-0527-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tuya Fernando CIIMAR, Rua dos Bragas 289, 4050-123, Porto, Portugal aut NATIONALLICENCE 700 1- Larsen Kim CIIMAR, Rua dos Bragas 289, 4050-123, Porto, Portugal aut NATIONALLICENCE 700 1- Platt Verena Department of Biology II, Ecology, Ludwig-Maximilians-University Munich, Grosshaderner Str. 2, 82152, Planegg-Martinsried, Germany aut NATIONALLICENCE 773 0- Hydrobiologia Springer Netherlands 658/1(2011-01-01), 373-382 0018-8158 658:1<373 2011 658 10750 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer