@article{fdi:010087407, title = {{L}essons learnt from the first large-scale biodegradable {FAD} research experiment to mitigate drifting {FAD}s impacts on the ecosystem}, author = {{M}urua, {H}. and {Z}udaire, {I}. and {T}olotti, {M}. and {M}urua, {J}. and {C}apello, {M}anuela and {B}asurko, {O}. {C}. and {K}rug, {I}. and {G}rande, {M}. and {A}rregui, {I}. and {U}ranga, {J}. and {F}erarios, {J}. {M}. and {S}abarros, {P}hilippe and {R}uiz, {J}. and {B}aidai, {Y}. and {R}amos, {M}. {L}. and {B}aez, {J}. {C}. and {A}bascal, {F}. and {A}rrizabalaga, {H}. and {M}oreno, {G}. and {D}agorn, {L}aurent and {S}antiago, {J}.}, editor = {}, language = {{ENG}}, abstract = {{D}rifting {F}ish {A}ggregating {D}evices (d{FAD}s) are currently made with synthetic and non-biodegradable materials contributing to the increase of marine litter and other potential ecosystem impacts. {T}una {RFMO}s have promoted the research and progressive replacement of existing {FAD}s by non-entangling biodegradable {FAD}s (bio{FAD}s). {H}ere, we present the results of the first large-scale biodegradable {FAD} project in the {I}ndian {O}cean to develop and implement the use of non-entangling biodegradable d{FAD}s. {T}he bio{FAD} tested were fully non-entangling without netting minimizing completely the risk of entanglement. {T}ested bio{FAD}s significantly contribute to the reduction of the synthetic plastic-based materials, increase the use of biodegradable materials and reduce the total material weight used in {FAD}s, reducing their overall ecosystem impacts. {T}he results of testing 771 bio{FAD}s in real fishing conditions, showed that the fishing performance regarding presence/absence of tuna around d{FAD}s, first day of tuna detection, proportion of {FAD}s occupied by tuna, biomass aggregation underneath the {FAD}s and catch per set between bio{FAD}s and conventional d{FAD}s were similar. {T}his provides support for the efficacy of bio{FAD}s regardless of the degradation experienced by the biodegradable materials tested. {A}lthough some bio{FAD}s lasted up to one year, the degradation of the biodegradable material was important and some bio{FAD}s lost their original structure after the study period, suggesting the need to find alternative designs for bio{FAD}s that will suffer less structural stress than those bio{FAD}s made of biodegradable material but with conventional design. {T}he lessons learnt in this large-scale trial will contribute to refining the future designs of biodegradable {FAD}s.}, keywords = {{D}rifting {F}ishing {A}ggregating {D}evices ; d{FAD}s ; {ALDFG} ; {M}arine pollution ; {P}urse seine ; {T}una ; {RFMO}s ; {OCEAN} {INDIEN}}, booktitle = {}, journal = {{M}arine {P}olicy}, volume = {148}, numero = {}, pages = {105394 [18 p.]}, ISSN = {0308-597{X}}, year = {2023}, DOI = {10.1016/j.marpol.2022.105394}, URL = {https://www.documentation.ird.fr/hor/fdi:010087407}, }