@article{fdi:40415, title = {{F}eeding convergence in {S}outh {A}merican and {A}frican zooplanktivorous cichlids {G}eophagus brasiliensis and {T}ilapia rendalli}, author = {{L}azzaro, {X}avier}, editor = {}, language = {{ENG}}, abstract = {{A}cara, #{G}eophagus brasiliensis$, and red-breasted bream, #{T}ilapia rendalli$, are important planktivorous cichlids in {S}outhern {B}razilian lakes and reservoirs. {I}n laboratory experiments, {I} quantified behavior and selectivity of different sizes of these two fish feeding on lake zooplankton. {F}eeding behavior depended on fish size. {F}ish <30 mm were visual feeders. {F}ish 30-50 mm either visually feed or pump-filter fed depending on zooplankton size. {F}ish >70 mm were pump-filter feeders. {R}eplicate 1 h feeding trials revealed that, as the relative proportions of prey changed during an experiment, acara (30-42 mm, standard lenght) and tilapia (29-42 mm) shifted from visual feeding on large evasive copepods to filter feeding on small cladocerans and rotifers. {E}lectivity and feeding rate increased with prey lenght, but were distinct for similar-sized cladocerans and copepods. {V}isual/filter-feeding fish had lowest electivities for small and poorly evasive rotifers and cyclopoid nauplii. ({D}'apr{\`e}s r{\'e}sum{\'e} d'auteur)}, keywords = {{POISSON} {D}'{EAU} {DOUCE} ; {ETHOLOGIE} ; {NUTRITION} {ANIMALE} ; {RELATION} {PREDATEUR} {PROIE} ; {ETUDE} {COMPARATIVE} ; {PLANCTOPHAGE} ; {FILTREUR} ; {CHASSEUR} {VISUEL} ; {BRESIL} ; {CONGO}}, booktitle = {}, journal = {{E}nvironmental {B}iology of {F}ishes}, volume = {31}, numero = {}, pages = {283--293}, ISSN = {0378-1909}, year = {1991}, DOI = {10.1007/{BF}00000693}, URL = {https://www.documentation.ird.fr/hor/fdi:40415}, }