@inproceedings{fdi:010078270, title = {{M}odelling and management options in a context of increase fishing effort and efficiency : case of {E}thmalosa fimbriata in {S}outhern {S}enegal [r{\'e}sum{\'e} de poster]}, author = {{B}alde, {B}.{S}. and {B}rehmer, {P}atrice and {S}ow, {F}.{N}. and {E}kau, {W}. and {K}antoussan, {J}. and {F}all, {M}. and {D}iouf, {M}.}, editor = {}, language = {{ENG}}, abstract = {{T}he bonga shad ({E}thmalosa fimbriata) is the third exploited of the small pelagics (after {S}ardinella aurita and {S}. maderensis) in the {S}enegalese waters and is commonly consumed locally. {T}his fishery is mainly practiced by artisanal fishermen and is of great importance for the {S}enegalese economy as for food security in the region. {O}ur investigations are aimed to inform the selection of management tools based on the dynamics of bonga shad exploitation to increase the likelihood of fishermen. {T}he current rate of exploitation ({E}) was estimated (0.8), updating current statute (fully exploited) and indicating that the bonga shad in {S}enegal is over-fished. {M}oreover, we report a seasonal variability in recruitment and biomass of the {S}enegalese bonga shad, and a downward trend over the study period as well as a maximum size decrease of -8.8 cm (18 %) in 63 years. {S}uch changes are attributed to increase in fishing capacity. {T}o reverse the overexploitation status of the bonga shad stock, it is necessary to put the mesh of encircling nets from 40mm to 60 mm, to reduce the fishing effort drastically, apply regulations on the capture, sale and processing of juveniles and exclusion of seiners and monofilaments on the {S}enegalese {S}outhern {C}oast.}, keywords = {{AFRIQUE} {DE} {L}'{OUEST} ; {SENEGAL} ; {ATLANTIQUE}}, numero = {}, pages = {135}, booktitle = {{I}nternational conference {ICAWA} 2017 and 2018 : extended book of abstract : the {AWA} project : ecosystem approach to the management of fisheries and the marine environment in {W}est {A}frican waters}, year = {2019}, ISBN = {978-9553602-0-06}, URL = {https://www.documentation.ird.fr/hor/fdi:010078270}, }