@article{fdi:010092508,
  title = {{U}nusual holopelagic {S}argassum mass beaching in {N}orthwest {A}frica :  morphotypes, chemical composition, and potential valorisation},
  author = {{B}ousso, {N}.{C}. and {B}rehmer, {P}atrice and {N}diaye, {W}. and {S}tiger-{P}ouvreau, {V}. and {K}ane, {C}. and {G}autier, {M}. and {F}aye, {M}. and {F}ricke, {A}. and {D}iadhiou, {H}.{D}. and {A}roui {B}oukbida, {H}anane and {W}einberger, {F}. and {R}amasamy, {B}. and {D}iedhiou, {F}. and {D}iop, {M}.{S}. and {B}alde, {B}.{S}. and {S}imon, {G}. and {Q}uack, {B}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he rapid proliferation of holopelagic {S}argassum spp. in the tropical {A}tlantic {O}cean presents environmental challenges and economic opportunities. {I}n 2022, {S}enegal witnessed its first significant holopelagic {S}argassum




beaching event, triggering widespread concern and interest from civil society, industrial sectors, and government. {T}his study represents the first analysis of stranded holopelagic {S}argassum's morphotypes and chemical




composition in {N}orthwest {A}frica. {W}e highlight the nature of {S}argassum stranding, dominated by {S}. fluitans {III}, and describe a putative new morphotype. {C}ompared to most of the studies in the tropical {A}tlantic, {S}enegalese




{S}argassum displayed lower arsenic concentrations (9-29 ppm), higher cadmium levels (9-15 ppm), and increased mercury content (0.47-0.57 ppm). {I}n addition, {S}enegalese {S}argassum showed higher levels of iron (237-1017 ppm)




and phosphorus (1300-1772 ppm). {T}he biochemical analysis revealed high total protein levels (15-40 % {DW}) in {S}enegalese samples, though further analysis is required to confirm this. {F}urthermore, variations in biochemical




composition within various parts of the {S}argassum thallus were observed. {T}he low arsenic content makes the beached {S}enegalese {S}argassum attractive for valorisation and sets it apart from holopelagic {S}argassum from all




other regions where it occurs. {H}owever, caution should be taken regarding the high concentrations of cadmium. {O}ur study highlights promising applications in {S}enegal and neighbouring countries, particularly in animal feed




and agriculture. {N}oteworthy is the notable palladium content (2 ppm), valuable phenolic compounds, and mannitol, which present additional opportunities for the chemical industry. {O}ur interdisciplinary approach enhances




the global scientific understanding of the {S}argassum issue. {W}ith the anticipation of more frequent {S}argassum beaching events and, more generally, for seaweed exploitation, we advocate for inter-governmental {A}frican




organisations to establish standardised norms for their exploitation. {W}e recommend that the {F}ood and {A}griculture {O}rganization/{W}orld {H}ealth {O}rganization consider incorporating more seaweed in the {C}odex {A}limentarius




to facilitate their uses particularly when states deal with algal blooms.},
  keywords = {{SENEGAL} ; {ATLANTIQUE} ; {CANARIES} {COURANT}},
  booktitle = {},
  journal = {{S}cience of {T}he {T}otal {E}nvironment},
  volume = {955},
  numero = {},
  pages = {177018 [17 ]},
  ISSN = {0048-9697},
  year = {2024},
  DOI = {10.1016/j.scitotenv.2024.177018},
  URL = {https://www.documentation.ird.fr/hor/fdi:010092508},
}