@article{fdi:010073068,
  title = {{S}ources and spatial distribution of dissolved aliphatic and polycyclic aromatic hydrocarbons in surface coastal waters of the {G}ulf of {G}abes ({T}unisia, {S}outhern {M}editerranean {S}ea)},
  author = {{F}ourati, {R}. and {T}edetti, {M}arc and {G}uigue, {C}. and {G}outx, {M}. and {G}arcia, {N}. and {Z}aghden, {H}. and {S}ayadi, {S}. and {E}lleuch, {B}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he goal of this work is to investigate the spatial distribution and sources of dissolved aliphatic and poly cyclic aromatic hydrocarbons ({AH}s and {PAH}s), as well as their relationships with a series of biogeochemical parameters (total chlorophyll a, phaeopigment a, suspended particulate matter, particulate and dissolved organic carbon, and nutrients), in surface coastal waters of the {G}ulf of {G}abes ({T}unisia, {S}outhern {M}editerranean {S}ea). {S}amples were collected off the {N}orthern and {S}outhern coasts of {S}fax city, as well as in the {G}abes-{G}hannouch area, from {O}ctober-{N}ovember 2014 and in {M}arch 2015. {T}otal dissolved {AH} and {PAH} concentrations ranged from 0.02 to 6.314 mu g {L}-1 and from 8.9 to 197.8 ng {L}-1, respectively. {T}hese data suggest that this area has been moderate-to-highly impacted by hydrocarbons compared to other {M}editerranean coastal environments. {T}he highest {AH} concentrations were measured off of the {S}fax {N}orthern coast (near {E}zzit wadi) and in the {G}abes-{G}hannouch area, whereas the highest {PAH} concentrations were recorded in the {S}fax {S}outhern coast (near commercial and fishing harbours and the {S}idi {S}alem channel). {A}nalysis of the {AH} molecular patterns reveals that low molecular weight ({LMW}) compounds in these samples are dominated by n-{C}-16, n-{C}-17 and n-{C}-18, which suggests that these samples feature high biogenic activity (in the form of bacteria or algae), and that high molecular weight ({HMW}) compounds display monomodal distributions centred on n-{C}-25 and n-{C}-26, which can be attributed to petrogenic inputs. {T}he {PAH} molecular patterns are characterized by the dominance of {LMW} (2-3 rings) compounds and their alkylated homologues, which account for 90 +/- 7% of total {PAH}s. {T}he observed {PAH} distribution and isomer ratios thus indicate the presence of major petrogenic contaminations. {T}he concentrations of {AH}s, {PAH}s and dissolved organic carbon ({DOC}) do not correlate with each other, thus demonstrating that these three pools likely originated from different sources and subsequently underwent different processes in the {G}ulf of {G}abes.},
  keywords = {{A}liphatic hydrocarbons ; {P}olycyclic aromatic hydrocarbons ; {G}ulf of {G}abes ; {M}editerranean {S}ea ; {A}nthropogenic signatures ; {B}iogenic inputs ; {MEDITERRANEE} ; {TUNISIE} ; {GABES} {GOLFE}},
  booktitle = {{S}pecial issue of {MERMEX} project : recent advances in the oceanography of the {M}editerranean {S}ea},
  journal = {{P}rogress in {O}ceanography},
  volume = {163},
  numero = {{SI}},
  pages = {232--247},
  ISSN = {0079-6611},
  year = {2018},
  DOI = {10.1016/j.pocean.2017.02.001},
  URL = {https://www.documentation.ird.fr/hor/fdi:010073068},
}