Just published online, so no Volume Information yet:
Kierl, N. C. and Johnston, C. E.: Sound production in the pygmy sculpin
Cottus paulus (Cottidae) during courtship and agonistic behaviours. J. Fish
Biol. no. doi: 10.1111/j.1095-8649.2010.02745.x
Abstract: A field study examined sound production in the pygmy sculpin
Cottus paulus, a threatened species found only in Coldwater Spring (Coosa
River drainage), Alabama where the study was conducted. Two distinct call
types are made during both courtship and agonistic encounters: a single
knock and a knock train. The duration of the knock train significantly
differs between contexts, while the signal structure stays the same. Knock
trains are longer when the intended audience is a female, while short and
abrupt when intended for a male intruder.
Kind regards
Sonja
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Dr. Sonja Amoser
Steinrieglstraße 286
3400 Weidlingbach
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