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Closed Access item Distribution patterns of meiofauna associated with a sublittoral Laminaria bed in the Cantabrian Sea (North-eastern Atlantic).

Authors:Arroyo, N. L.
Maldonado, Manuel
Pérez-Portela, R.
Benito, J.
Keywords:Ostracoda, Intertidal algae, Abundance, Diversity
Issue Date:2003
Publisher:Springer
Citation:Marine Biology 144(2) : 231-242 (2003)
Abstract:Rocky intertidal algae harbor a diverse invertebrate meiofauna of arthropods, nematodes and other invertebrates. Despite its ecological importance, relatively little is known about the diversity and composition of this important component of intertidal biodiversity. In this study, we quantified species composition, abundance and distribution of ostracodes, an important group of phytal meiofauna, at two different intertidal areas in southern California. In total, we recovered 22 ostracode species from three different orders (16 podocopids, five myodocopids and one platycopid), nearly a quarter of which could not be assigned to existing taxa. The abundance of ostracodes differed significantly among algal types, with structurally complex algae bearing many more ostracodes per gram of algae than simple forms (blade-like algae and the surfgrass Phyllospadix). Although most ostracode species were recovered from multiple kinds of algae, different algae harbored distinct assemblages that could be discriminated statistically on the basis of relative abundances of ostracode species. This segregation of the ostracode fauna according to algal species is evident even over very short spatial scales (<1 m). Finally, ostracode samples from turf-forming algae were more species rich than samples from other kinds of macroalgae. Since turf-forming algae are easily damaged by human trampling, this component of ostracode biodiversity may be particularly vulnerable to anthropogenic impacts on the intertidal habitat.
Description:12 páginas, 4 figuras, 1 tabla.
Publisher version (URL):http://dx.doi.org/10.1007/s00227-003-1191-8
URI:http://hdl.handle.net/10261/43819
ISSN:0025-3162
Appears in Collections:(CEAB) Artículos

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