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Mar Environ Res

Title:		Caulerpa cylindracea Sonder invasion modifies trophic niche in infralittoral rocky benthic community
Author(s):		Alomar C; Deudero S; Andaloro F; Castriota L; Consoli P; Falautano M; Sinopoli M;
Address:		"Instituto Espanol de Oceanografia, Centro Oceanografico de Baleares, Muelle de Poniente s/n, 07015 Palma de Mallorca, Spain. Electronic address: c.alomar@ba.ieo.es. Instituto Espanol de Oceanografia, Centro Oceanografico de Baleares, Muelle de Poniente s/n, 07015 Palma de Mallorca, Spain. Institute for Environmental Protection and Research (ISPRA), Via Salvatore Puglisi 9, 90143 Palermo, Italy; Institute for Environmental Protection and Research (ISPRA), Laboratory of Ichthyology and Marine Ecology, Via dei Mille 46, 98057 Milazzo, ME, Italy. Institute for Environmental Protection and Research (ISPRA), Via Salvatore Puglisi 9, 90143 Palermo, Italy. Institute for Environmental Protection and Research (ISPRA), Laboratory of Ichthyology and Marine Ecology, Via dei Mille 46, 98057 Milazzo, ME, Italy"
Journal Title:		Mar Environ Res
Year:		2016
Volume:		20160718
Issue:
Page Number:		86 - 92
DOI:		10.1016/j.marenvres.2016.07.010
ISSN/ISBN:		1879-0291 (Electronic) 0141-1136 (Linking)
Abstract:		"The Mediterranean basin is one of the most invaded seas of the world. Invasive species have affected coastal benthic communities inducing structural changes. Since first reports, in the early 90s, Caulerpa cylindracea is considered one of the most important invasive event in the Mediterranean Sea where it has invaded large areas of soft bottoms, seagrass meadows and rocky shores. To assess effects of C. cylindracea in rocky ecosystems, benthic food webs have been compared between invaded and non-invaded coastal conditions through stable isotopes analyses. In addition, the convex hull area of the two types of conditions has been calculated as a proxy for the total extent of trophic diversity within each food web. Results have shown that the trophic niche width is at least 1.4 times wider in invaded conditions than in non-invaded conditions. In addition, this study gives further evidence of similar feeding analogies between the invasive herbivore fish, Siganus luridus and native herbivore fish Sparisoma cretense as both are feeding at the same isotopic level. This investigation provides with new scientific data to assess bionvasions in invaded and non-invaded conditions at assemblage level in coastal systems"
Keywords:		Animals *Biodiversity Caulerpa/*physiology *Ecosystem *Environmental Monitoring Fishes *Food Chain Herbivory *Introduced Species Mediterranean Sea Perciformes Food web Invasive alien species Lessepsian Mediterranean Stable isotopes;
Notes:		"MedlineAlomar, Carme Deudero, Salud Andaloro, Franco Castriota, Luca Consoli, Pierpaolo Falautano, Manuela Sinopoli, Mauro eng England 2016/07/28 Mar Environ Res. 2016 Sep; 120:86-92. doi: 10.1016/j.marenvres.2016.07.010. Epub 2016 Jul 18"