@article{fdi:010072063, title = {{W}ater quality affects the structure of copepod assemblages along the {S}fax southern coast ({T}unisia, southern {M}editerranean {S}ea)}, author = {{D}rira, {Z}. and {K}miha-{M}egdiche, {S}. and {S}ahnoun, {H}. and {P}agano, {M}arc and {T}edetti, {M}arc and {A}yadi, {H}.}, editor = {}, language = {{ENG}}, abstract = {{T}he {S}fax southern coast ({G}ulf of {G}abes, {M}editerranean {S}ea) has been under increased anthropogenic pressure for many years. {I}n the present study we investigated the effects of this anthropisation on the spatial distribution of copepod assemblages in relation to the physicochemical features of seawater at 20 stations sampled on 19 {M}arch 2013. {C}opepods represented 73% of total zooplankton abundance. {S}mall planktonic copepods (<1.45 mm), including pollution-tolerant species (e.g. {O}ithona nana, {P}aracalanus parvus, {H}arpacticus littoralis and {T}isbe battagliai), proliferated exclusively in stations of similar to 0.5-m depth characterised by high coastal anthropogenic inputs. {T}he largest copepod species were dominated by {C}alanus helgolandicus (1.45-2.5 mm) in the offshore zone in depths of similar to 3 m. {S}ubstantial numbers of {O}ithona plumifera (7.5%) were found at depths between 0.5 and 3 m. {C}opepod diversity was significantly higher in the southern zone, which is less affected by sewage, than in the northern zone, which was subjected to higher pressure ({S}hannon-{W}iener index {H}' = 1.5-2.5 and <= 1.5 bits individual(-1)). {A} shift in the planktonic copepod community between the two zones was linked to deterioration of water quality, with higher phosphorus levels, turbidity and chemical oxygen demand ({COD}) in the northern zone.}, keywords = {anthropogenic inputs ; chemical oxygen demand 5-day biochemical oxygen ; demand ; {COD}-{BOD}5 ; diversity ; zooplankton ; {TUNISIE} ; {MEDITERRANEE}}, booktitle = {}, journal = {{M}arine and {F}reshwater {R}esearch}, volume = {69}, numero = {2}, pages = {220--231}, ISSN = {1323-1650}, year = {2018}, DOI = {10.1071/mf17133}, URL = {https://www.documentation.ird.fr/hor/fdi:010072063}, }