Crustacean decapod assemblages associated with fragmented Posidonia oceanica meadows in the Alboran Sea (Western Mediterranean Sea): composition, temporal dynamics and influence of meadow structure
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Mateo-Ramírez, Angel; Urra, J. (Javier); Marina-Ureña, P. (Pablo); Rueda, J.L. (José Luis); García Raso, José EnriqueEditor's version
http://onlinelibrary.wiley.com/doi/10.1111/maec.12284/abstractDate
2015-07Type
articleKeywords
Alboran Seadecapod assemblages
fragmented
Posidonia oceanica
temporal dynamics
Abstract
The decapod assemblage associated with a Posidonia oceanica meadow located
near its western limit of biogeographic distribution was studied over an annual
cycle. Fauna samples were taken seasonally over a year (five replicates per season)
in two sites located 7 km apart, using a non-destructive sampling method
(airlift sampler) for the seagrass. The dominant species of the assemblage, Pisidia
longimana, Pilumnus hirtellus and Athanas nitescens, were associated with
the protective rhizome stratum, which is mainly used as a nursery. The correlations
between decapod assemblage structure and some phenological parameters
of the seagrass shoots and wave height were negative or null, which reflects
that species associated with the rhizome had a higher importance than those
associated with the leaf stratum. The abundance and composition of the decapod
assemblage as well as the ecological indexes displayed a seasonality trend
with maximum values in summer-autumn and minimum in winte ...
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