@article{fdi:010080440,
  title = {{F}atty acid compositions of four benthic species along the salinity gradient of a human impacted and mangrove dominated tropical estuary ({C}an {G}io, {V}ietnam)},
  author = {{D}avid, {F}. and {M}archand, {C}yril and {V}inh, {T}. {V}. and {T}aillardat, {P}. and {T}hanh-{N}ho, {N}. and {M}eziane, {T}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}ropical estuaries are characterised by high spatial and temporal variability in the conditions they provide for living organisms, which in turn may affect their biochemical composition. {A}nthropogenic contaminants such as nutrients, antibiotics, pesticides and trace metals may also affect the biochemical composition of these coastal organisms, notably with regard to fatty acids ({FA}), of which optimal species-specific polyunsaturated {FA} ratios are required to maintain living species in healthy conditions. {T}he objective of this study was to evidence changes in the {FA} profile of four ubiquist benthic species in relation to the salinity gradient of a human impacted and mangrove dominated tropical estuary ({C}an {G}io, {S}outhern {V}ietnam). {A}mong the four benthic species studied, two exhibited spatial and seasonal changes in their {FA} composition: the varunid crab {M}etaplax elegans and the predatory mangrove murex snail {C}hicoreus capucinus. {P}roportions of the {FA} 16:1 omega 7, proportions of highly unsaturated {FA} and ratios of eicosapentanoic acid/arachidonic acid in the tissues of both species seemed related to upstream inputs. {D}ifferent relative abundances of benthic microalgae affected both claw muscle and hepatopancreas {FA} composition of {M}. elegans, while the {FA} composition of {C}. capucinus shows that the influence of prey's diet might be transferred within trophic chains. {F}inally, some species, such as {N}erita balteata and {M}etapenaeus ensis might have more adaptive capacities, because of their mobility, or because of their specific metabolic pathways, minimizing the potential impact of spatial and/or temporal changes in food resources quality. {A} starvation experiment involving {N}. balteata actually revealed the metabolic synthesis of non-methylene interrupted {FA} that may confer cell membranes a higher resistance to external stressors than common polyunsaturated {FA}. {O}ur study highlights the future possibility of using the {FA} composition of sentinel organisms (i.e. feeding on specific food resources and/or especially subject to environmental stresses) as a bioindicator tool to assess mangrove ecosystems health.},
  keywords = {{M}angrove ; {F}atty acids ; {A}quatic invertebrates ; {F}ood webs ; {A}nthropogenic influence ; {B}ioindication ; {VIET} {NAM} ; {ZONE} {TROPICALE} ; {CAN} {GIO} {ESTUAIRE}},
  booktitle = {},
  journal = {{J}ournal of {S}ea {R}esearch},
  volume = {166},
  numero = {},
  pages = {101955 [9 ]},
  ISSN = {1385-1101},
  year = {2020},
  URL = {https://www.documentation.ird.fr/hor/fdi:010080440},
}