Document Detail


Calls of the black drum (Pogonias cromis: Sciaenidae): geographical differences in sound production between northern and southern hemisphere populations.
MedLine Citation:
PMID:  21061298     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Because of apparent reproductive isolation between Northern and Southern hemisphere populations of the black drum Pogonius cromis, we tested the hypothesis that advertisement calls from a southern population would differ from known calls of North American populations. Additionally, we quantified disturbance and advertisement calls, their changes with fish size and sex, not previously examined in this species. Unlike most sciaenids, both sexes of P. cromis possess robust sonic muscles, and both produce disturbance calls when handled. However, only males produce an advertisement call used in courtship. The disturbance call consists of a variable train of short-duration pulses (average 23 ms). The duration, interpulse interval, and dominant frequency of pulses are similar in males and females and change developmentally: pulse duration and interpulse interval increase and dominant frequency decreases with fish size. Advertisement calls, recorded in the field and in captivity, are long-duration (average 184 ms) and tonal. Based on variation in fundamental frequency, which decreases with fish size, field choruses are composed of different-sized individuals. The duration of advertisement calls, about a third of those from Florida populations, suggests genetic differentiation between northern and southern populations. J. Exp. Zool. 313A, 2010. © 2010 Wiley-Liss, Inc.
Authors:
Javier S Tellechea; Walter Norbis; Daniela Olsson; Michael L Fine
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2010-11-8
Journal Detail:
Title:  Journal of experimental zoology. Part A, Ecological genetics and physiology     Volume:  -     ISSN:  1932-5231     ISO Abbreviation:  -     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-11-9     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101297745     Medline TA:  J Exp Zool A Ecol Genet Physiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Instituto de Biologia, Laboratorio de Fisiología de la Reproducción y Ecología de Peces, Facultad de Ciencias, Universidad de la Republica, Igua, Uruguay.
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