Use of organic biomarkers to trace the transport of marine and terrigenous organic matter through the southwestern canyons of the Gulf of Lion (Articolo in rivista)

Type
Label
  • Use of organic biomarkers to trace the transport of marine and terrigenous organic matter through the southwestern canyons of the Gulf of Lion (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.marchem.2011.03.001 (literal)
Alternative label
  • Pasqual, Catalina[ 1 ] ; Lee, Cindy[ 2 ] ; Goni, Miguel[ 3 ] ; Tesi, Tommaso[ 3,4 ] ; Sanchez-Vidal, Anna[ 1 ] ; Calafat, Antoni[ 1 ] ; Canals, Miquel[ 1 ] ; Heussner, Serge[ 5 ] (2011)
    Use of organic biomarkers to trace the transport of marine and terrigenous organic matter through the southwestern canyons of the Gulf of Lion
    in Marine chemistry (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Pasqual, Catalina[ 1 ] ; Lee, Cindy[ 2 ] ; Goni, Miguel[ 3 ] ; Tesi, Tommaso[ 3,4 ] ; Sanchez-Vidal, Anna[ 1 ] ; Calafat, Antoni[ 1 ] ; Canals, Miquel[ 1 ] ; Heussner, Serge[ 5 ] (literal)
Pagina inizio
  • 1 (literal)
Pagina fine
  • 12 (literal)
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  • 126 (literal)
Rivista
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  • 13 (literal)
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  • 1 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • [ 1 ] Univ Barcelona, GRC Geociencies Marines, Dept Estratig Paleontol & Geociencies Marines, E-08028 Barcelona, Spain [ 2 ] SUNY Stony Brook, Sch Marine & Atmospher Sci, Stony Brook, NY 11794 USA [ 3 ] Oregon State Univ, Coll Ocean & Atmospher Sci, Corvallis, OR 97331 USA [ 4 ] Ist Sci Marine CNR, I-40129 Bologna, Italy [ 5 ] Univ Perpignan, Ctr Format & Rech Environm Marin, CNRS, F-66025 Perpignan, France (literal)
Titolo
  • Use of organic biomarkers to trace the transport of marine and terrigenous organic matter through the southwestern canyons of the Gulf of Lion (literal)
Abstract
  • From October 2005 through October 2006 sediment traps were moored along the Lacaze-Duthiers and Cap de Creus submarine canyons and on the adjacent southern open slope in the Gulf of Lion (Northwestern Mediterranean). During the Winter 2006 (January-March), an intense Dense Shelf Water Cascading (DSWC) event was found to be a major driver of particle transport, increasing lateral advection of material at all stations. In this study, we assessed the sources and degradation of organic matter (OM) advected along canyons during both DSWC and quiescent conditions using specific organic biomarkers, including pigments, lignin phenols and amino acids. Three major events of fresh, marine OM inputs were detected during the study period. The largest one was in spring (March-May), with smaller events also observed in winter (December 2005) and summer (August 2006), suggesting that both spring blooms and sporadic blooms associated with wind-driven mixing affects carbon fluxes in this system. The DSWC event that partially overlapped the spring-bloom enhanced the overall transfer of OM down canyons. The lignin phenol data show no significant, along-canyon dilution and are consistent with constant advection of terrigenous material. In contrast, amino acid and chloropigment compositions indicate that part of the OM is degraded both prior to reaching the canyons and within the canyons themselves. Overall, our results illustrate the importance of both seasonal and sporadic pelagic and continental shelf/lateral events in controlling the exchange of organic matter across this margin (literal)
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