Journal
NEOTROPICAL ICHTHYOLOGY
Volume 5, Issue 3, Pages 307-310Publisher
SOC BRASILEIRA ICTIOLOGIA
DOI: 10.1590/S1679-62252007000300011
Keywords
following behavior; foraging habits; freshwater; hypoptopomatinae; crenuchidae
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Following behavior is a widespread feeding tactic among marine fishes, but remains poorly documented for freshwater fishes. The present study describes such association between two freshwater species: the minute armored catfish Parotocinclus maculicauda and the South American darter Characidium sp. During underwater observations in an Atlantic Forest stream, we recorded Characidium sp. closely following P. maculicauda (<5cm), catching the particles dislodged by this catfish's grazing activity. The following behavior displayed by the darter is considered opportunistic and possibly favors the capture of preys associated to the periphyton. This study is one of the few records of nuclear-follower feeding association between freshwater fishes and the first one in Atlantic Forest streams.
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