@techreport{fdi:010097703, title = {{S}upporting harmonization of small-scale fisheries data systems in the western {I}ndian {O}cean [policy brief]}, author = {{M}baru, {E}mmanuel and {T}illey, {A}lexander and {L}{\'e}opold, {M}arc and {T}hoya, {P}ascal and {K}osgei, {J}esse and {O}gari, {Z}achary and {P}etersen, {S}amantha and {V}essaz, {E}ffy and {M}ueni, {E}lizabeth and {T}heuri, {M}wangi and {A}l {K}harousyx, {Z}ahor and {M}asquine, {Z}ainabo and {L}ongobardi, {L}orenzo and {G}ardella, {G}iacomo and {Z}afimamatrapehy, {D}eutz and {F}anambinantsoa, {D}uolah and {A}ndrianjaka, {T}inah {C}amara and {R}anaivomanana, {S}andra and {T}embo, {J}aphet and {M}ahafina, {J}amal and {T}uda, {A}rthur}, editor = {}, language = {{ENG}}, abstract = {{S}mall-scale fisheries underpin food security, livelihoods, and coastal economies across the {W}estern {I}ndian {O}cean ({WIO}). {Y}et despite widespread data collection, fragmented and incompatible systems prevent countries from managing shared resources effectively. {W}ithout urgent data harmonization, regional stock assessments, ecosystem-based management, and evidence-based policy will remain out of reach. ? {T}here is strong political and institutional support and growing momentum for harmonization, including agreement on standardized indicators, open data principles with safeguards, and participatory monitoring. ? {A} phased, practical roadmap can deliver national and regional data integration if accompanied by clear institutional instruments, sustainable financing, and capacity building. ? {R}egional platforms such as the {S}outh {W}est {I}ndian {O}cean {F}isheries {C}ommission ({SWIOFC}) and the {C}onsortium for the {C}onservation of {C}oastal and {M}arine {E}cosystems in the {W}estern {I}ndian {O}cean ({WIO} {C}) are critical institutional anchors for scaling harmonization and embedding it in policy processes, while supporting the ecosystem approach to small-scale fisheries in the {WIO}.}, keywords = {{OCEAN} {INDIEN} ; {AFRIQUE} {DE} {L}'{EST} ; {OCEAN} {INDIEN} {ILES} ; {MADAGASCAR} ; {MAURICE} ; {REUNION} ; {COMORES} ; {SEYCHELLES} ; {SOMALIE} ; {KENYA} ; {TANZANIE} ; {MOZAMBIQUE} ; {AFRIQUE} {DU} {SUD}}, address = {[s.l.]}, publisher = {{WIOMSA} ; {W}orld{F}ish ; {CGIAR} ; {IRD}}, series = {}, pages = {4 multigr.}, year = {2026}, DOI = {10.23708/fdi:010097703}, URL = {https://www.documentation.ird.fr/hor/fdi:010097703}, }