@article{fdi:010061724, title = {{D}iet of the barracuda {S}phyraena guachancho in {C}ote d'{I}voire ({E}quatorial {E}astern {A}tlantic {O}cean)}, author = {{A}kadje, {C}. and {D}iaby, {M}. and {L}e {L}oc'h, {F}ran{\c{c}}ois and {K}onan, {J}. {K}. and {N}'da, {K}.}, editor = {}, language = {{ENG}}, abstract = {{T}he description of predator-prey interactions from trophic relationships are essential for understanding ecosystem functioning. {W}e characterized and quantified the contribution of lower trophic levels in the diet of {S}phyraena guachancho {C}uvier, 1829, by season and size. {F}ish were sampled from commercial catches of the fishing port of {A}bidjan ({R}epublic of {C}ote d'{I}voire, {E}quatorial {E}astern {A}tlantic {O}cean) between {J}uly 2010 and {J}une 2011. {A} total of 318 specimens ranging from 19 to 63 cm fork length ({FL}) were examined. {T}he vacuity index varied significantly between seasons with higher values in great cold season (71.3%), intermediate in the great and short dry seasons, 53.7% and 54.9%, reapectively, and lowest in low cold season (48.9%). {A} total of 12 families were found in the stomachs of {S}. guachancho, mainly teleost fish species (mostly {C}lupeidae, {S}phyraenidae, {C}arangidae and {E}ngraulidae). {I}ndex of relative importance ({IRI}) was calculated for prey items found in guts to characterize diet and consisted of fish ({IRI} = 70.9%), cephalopods ({IRI} = 16.7%) and crustaceans ({IRI} = 12.4%). {T}he {IRI} trend was the same during the warm and cold seasons, with the exception of {J}anuary-{F}ebruary period where cephalopods were the dominant prey ({IRI} = 81.3%). {A} hierarchical cluster analysis highlighted diet similarities between individuals from size groups 19-24 cm {FL}, 24-54 cm {FL} and 54-63 cm {FL}. {H}owever, the first and the last size groups ate only fish while the intermediate size group consumed all three food groups (fish, cephalopods and crustaceans), including conspecifics (cannibalism).}, keywords = {{S}phyraenidae ; {S}phyraena guachancho ; {C}ote d'{I}voire ; {D}iet ; {COTE} {D}'{IVOIRE} ; {OCEAN} {ATLANTIQUE}}, booktitle = {}, journal = {{C}ybium}, volume = {37}, numero = {4}, pages = {285--293}, ISSN = {0399-0974}, year = {2013}, URL = {https://www.documentation.ird.fr/hor/fdi:010061724}, }