@article{fdi:010086710, title = {{I}sotopic compositions of copper and zinc in plankton from the {M}editerranean {S}ea ({MERITE}-{HIPPOCAMPE} campaign): {T}racing trophic transfer and geogenic inputs}, author = {{C}hifflet, {S}andrine and {B}riant, {N}. and {F}reydier, {R}. and {A}raujo, {D}. {F}. and {Q}u{\'e}m{\'e}neur, {M}arianne and {Z}ouch, {H}. and {B}ellaaj-{Z}ouari, {A}. and {C}arlotti, {F}. and {T}edetti, {M}arc}, editor = {}, language = {{ENG}}, abstract = {{T}his study uses {C}u and {Z}n isotopic compositions as proxies of sources and metal transfers in the planktonic food webs from the {M}editerranean {S}ea. {P}lankton was collected in spring 2019 in the deep chlorophyll maximum ({DCM}) along a {N}orth-{S}outh transect including coastal and offshore zones ({MERITE}-{HIPPOCAMPE} campaign). 865{C}u and 866{Z}n were determined on four planktonic size fractions from 60 to 2000 mu m. {C}ombined 865{C}u and 866{Z}n with geochemical tracers ({T}i, particulate organic phosphorus) showed that geogenic particles were ubiquitous with plankton assemblages. {T}he 815{N} ecological tracer showed that planktonic food web was enriched in heavy isotopes of {C}u and {Z}n in the higher trophic levels. 865{C}u were correlated with picoplankton in the offshore zone, and with zooplankton in the southern coastal zone. {F}irmicutes bacteria were found correlated with 866{Z}n in northern and southern coastal zones suggesting decomposition of particulate matter at the {DCM}. {T}hese findings suggest that biogeochemical process may impact {C}u and {Z}n isotopy in the planktonic community.}, keywords = {{M}editerranean {S}ea ; {P}lanktonic food webs ; {C}u and {Z}n isotopes ; {G}eogenic inputs ; {MEDITERRANEE} ; {FRANCE} ; {TUNISIE}}, booktitle = {}, journal = {{M}arine {P}ollution {B}ulletin}, volume = {185}, numero = {{A}}, pages = {114315 [11 ]}, ISSN = {0025-326{X}}, year = {2022}, DOI = {10.1016/j.marpolbul.2022.114315}, URL = {https://www.documentation.ird.fr/hor/fdi:010086710}, }