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http://hdl.handle.net/10261/87659
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dc.contributor.author | Box Centeno, Antonio | - |
dc.contributor.author | Deudero, Salud | - |
dc.contributor.author | Sureda, Antoni | - |
dc.contributor.author | Blanco, Andreu | - |
dc.contributor.author | Alós, Josep | - |
dc.contributor.author | Terrados, Jorge | - |
dc.contributor.author | Grau, Antoni Maria | - |
dc.contributor.author | Riera, Francisco | - |
dc.date.accessioned | 2013-11-27T11:50:24Z | - |
dc.date.available | 2013-11-27T11:50:24Z | - |
dc.date.issued | 2009 | - |
dc.identifier | doi: 10.1016/j.jembe.2009.08.010 | - |
dc.identifier | issn: 0022-0981 | - |
dc.identifier.citation | Journal of Experimental Marine Biology and Ecology 380(1-2): 11-19 (2009) | - |
dc.identifier.uri | http://hdl.handle.net/10261/87659 | - |
dc.description.abstract | Marine invasions are a worldwide problem that involves changes in communities and the acclimation of organisms to them. The invasive Chlorophyte Caulerpa racemosa var. cylindracea is widespread in the Mediterranean and colonises large areas from 0 to 70 m in depth. The omnivorous fish Spondyliosoma cantharus presents a high frequency of occurrence of C. racemosa in the stomach contents at invaded areas (76.3%) while no presence of C. racemosa was detected in control areas. The isotopic composition of muscle differed significantly between invaded and non-invaded sites for δ13C (- 16.67‰ ± 0.09 and - 17.67‰ ± 0.08, respectively), δ15N (10.22‰ ± 0.22 and 9.32‰ ± 0.18, respectively) and the C:N ratio (2.01 ± 0.0002 and 1.96 ± 0.009, respectively). Despite the high frequency of occurrence of C. racemosa in the stomach contents of S. cantharus and its important contribution to the δ13C source (20.7% ± 16.2), the contribution of C. racemosa to the δ15N in S. cantharus food sources was very low (6.6% ± 5.8). Other invertebrate prey such as decapods and polychaetes were more important contributors to the δ15N source at both invaded and non-invaded sites. Activation of enzymatic pathways (catalase, superoxide dismutase, glutathione-s-tranferase, 7-ethoxy resorufin O-de-ethylase) but not a significant increase in lipid peroxidation MDA (0.49 ± 0.01 nmol/mg prot at non-invaded and 0.53 ± 0.01 nmol/mg prot at invaded sites) was observed in S. cantharus individuals living in C. racemosa-invaded sites compared with control specimens. The low δ15N contribution values of C. racemosa by S. cantharus together with the toxicity demonstrated by the activation of the antioxidant defences and the important contribution of invertebrate prey to the δ15N could mean that the ingestion of C. racemosa by S. cantharus might be unintentional during the predation of invertebrate preys living underneath the entanglement of the C. racemosa fronds and stolons mats. © 2009 Elsevier B.V. All rights reserved. | - |
dc.language.iso | eng | - |
dc.publisher | Elsevier | - |
dc.rights | closedAccess | - |
dc.title | Diet and physiological responses of Spondyliosoma cantharus (Linnaeus, 1758) to the Caulerpa racemosa var. cylindracea invasion | - |
dc.type | artículo | - |
dc.identifier.doi | 10.1016/j.jembe.2009.08.010 | - |
dc.date.updated | 2013-11-27T11:50:24Z | - |
dc.description.version | Peer Reviewed | - |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.fulltext | No Fulltext | - |
item.languageiso639-1 | en | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | artículo | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | none | - |
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