@article{fdi:010061891, title = {{S}patial and temporal dynamics of bacterial contamination in {S}outh {F}rance coastal rivers : focus on in-stream processes during low flows and floods}, author = {{C}hu, {Y}. and {T}ournoud, {M}. {G}. and {S}alles, {C}. and {G}ot, {P}. and {P}errin, {J}ean-{L}ouis and {R}odier, {C}. and {C}aro, {A}. and {T}roussellier, {M}arc}, editor = {}, language = {{ENG}}, abstract = {{F}aecal indicator bacteria (thermotolerant coliform and faecal streptococci) were enumerated in a {M}editerranean coastal river to evaluate bacterial contamination levels in relation to hydrological conditions, to estimate delivery of bacterial loads to transitional and coastal waters ({T}hau lagoon) and to identify bacterial sources of pollution and their contribution to the bacterial flow. {R}esults showed that (1) in low flow conditions, mean bacterial concentrations were higher than {EU} guidelines for bathing waters; (2) floods had higher concentrations of indicator bacteria than low flows; (3) low flow conditions represented a negligible proportion of bacterial loads compared with high flow and flood periods; (4) during medium and low flow conditions, bacteria were stored in riverbed fine sediments forming in-stream stores that may be flushed during floods; (5) the first flush effect was highlighted during an early autumn flood as was the role of in-stream stores during the course of the flood; and (6) point sources that continuously feed the river are contributing to the pool of bacteria accumulated in the riverbed sediment.}, keywords = {{C}oliforms and streptococci ; {M}editerranean rivers ; faecal indicator ; loads ; riverbed sediment abundance ; flush effect ; point sources ; {FRANCE}}, booktitle = {}, journal = {{H}ydrological {P}rocesses}, volume = {28}, numero = {8}, pages = {3300--3313}, ISSN = {0885-6087}, year = {2014}, DOI = {10.1002/hyp.9900}, URL = {https://www.documentation.ird.fr/hor/fdi:010061891}, }