Crustacean species associated with Ulva spp. on beaches with different environmental characteristics
Keywords:
Rocky shore, Crustaceans, Macroalgae, Ulva spp.Abstract
Communities associated with macroalgae are known to host a diverse and abundant fauna. Despite the ecological importance of this environment, studies
with macroalgae present at the rocky shores are relatively scarce and mostly conducted with structurally more complex species. The main goal of this study
was to analyze the crustacean species associated with the green macroalga Ulva spp. present in rocky shores at Cigarras Beach and Araçá Bay, both situated in
São Sebastião, Northern coast of the state of São Paulo. Nine samples were taken from each area. At Araçá bay, three sampling zones could be distinguished
(subtidal, intertidal and upper tidal) and three samples were collected at each zone. Amphipods and isopods were the dominant group in both areas; however
the amphipod Parhyale hawaiensis was present in great number only in Araçá. The mean abundance of crustacean species associated with Ulva spp. was four
times higher in Araçá bay than in Cigarras Beach. No difference in the Shannon--Wienner index was detected between the areas or among the zones in Araçá bay.
The higher density of crustacean species in Araçá bay may be associated with the absence of other macroalgae species that could be used as a biological substrate and the low hydrodynamic forces acting in this area.
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References
Amaral, A.C.Z.; Migotto, A.E.; Turra, A. & Schaeffer-Novelli, Y. (2010). Araçá: biodiversidade, impactos e ameaças. Biota Neotropica, 10(1):219-64.
Ayala, Y. & Martín, A. (2003). Relaciones entre la comunidad de anfípodos y las macroalgas a las que están asociados, en una plataforma rocosa del litoral central de Venezuela. Boletín Instituto Español de Oceanografia, 19(1-4):171-82.
Bat, L.; Akbulut, M.; Sezgin, M. & Çulha, M. (2001). Effects of Sewage Pollution the Structure of the Community of Ulva lactuca, Enteremorpha linza and Rocky Macrofauna in Dislliman of Sinop. Turkish Journal of Biology, 25(1):93-102.
Bégin, C.; Johnson, L.E. & Himmelman, J.H. (2004). Macroalgal canopies: distribution and diversity of associated invertebrates and effects on the recruitment and growth of mussels. Marine Ecology Progress Series, 271(1):121-32.
Boffi, K.H. (1972). Ecological aspects of ophiuroids from phytal of S. W. Atlantic Ocean warm waters. Marine Biology, 15(4):316-28.
Cardoso, P.G.; Pardal, M.A.; Raffaelli, D.; Baeta, A. & Marques, J.C. (2004). Macroinvertebrate response to different species of macroalgal mats and the role of disturbance history. Journal of Experimental Marine Biology and Ecology, 308(2):207-20.
Da Rocha, C.M.C. (2003). Efeito do substrato fital na comunidade meiofaunística associada, com ênfase aos Nematoda livres. Tese em Oceanografia Biológica, Universidade Federal de Pernambuco.
Duggins, D.O.; Simenstad, C.A. & Estes, J.A. (1989). Magnification of secondary production by kelp detritus in coastal marine ecosystems. Science, 245(1):170-3.
