title: Lateralization of pectoral stridulation sound production in the channel catfish.
abstract: Sounds of the channel catfish Ictalurus punctatus were found to consist of a rapid series of pulses produced by rubbing a ridged process on the first pectoral spine against the rough surface of a groove in the pectoral girdle during fin abduction. Although sounds can be made with either fin, approximately half of the individuals exhibited a fin preference, and 90% of these preferred the right fin. Unlike examples of handedness in other invertebrates and fishes, this preference is not simply a matter of anatomical asymmetry, but as in humans, reflects a preference between two equally developed limbs.
authors.affiliation: Department of Biology, Virginia Commonwealth University, Richmond 23284-2012, USA.
authors.forename: M L
authors.initials: ML
authors.lastname: Fine
authors.forename: D
authors.initials: D
authors.lastname: McElroy
authors.forename: J
authors.initials: J
authors.lastname: Rafi
authors.forename: C B
authors.initials: CB
authors.lastname: King
authors.forename: K E
authors.initials: KE
authors.lastname: Loesser
authors.forename: S
authors.initials: S
authors.lastname: Newton
mesh_terms: D000818:Animals; D005121:Extremities / Q000502:physiology*; D007839:Functional Laterality / Q000502:physiology*; D007059:Ictaluridae; D013016:Sound