D. A. Mann, P. A. Cott, B. W. Hanna, and A. N. Popper (2007): Hearing
in eight species of northern Canadian freshwater fishes. J. Fish Biol.
70(1), 109-120.
Abstract: The hearing thresholds of eight fish species from northern
Canada were measured using auditory evoked potential techniques. The
species with the best hearing was the lake chub Couesius plumbeus,
followed by the longnose sucker Catastomus catastomus, both which had
relatively sensitive hearing over the frequency range tested from 100
to 1600 Hz. The remaining species (troutperch Percopsis omiscomaycus,
nine-spined stickleback Pungitius pungitius, pike Esox lucius,
spoonhead sculpin Cottus ricei, burbot Lota lota and broad whitefish
Coregonus nasus) all showed most sensitivity to low frequencies (<400
Hz) and had relatively insensitive high frequency hearing. The two
species with the best hearing are otophysan fishes with connections
between the swimbladder and inner ear. The spoonhead sculpin lacks a
swimbladder, while the other non-otophysan species have swimbladders,
but no specialized connection to the inner ear. These results can be
used to predict the potential impact of anthropogenic noise, such as
seismic air gun blasts, on hearing in these species. The species with
the most sensitive hearing (lake chub and longnose sucker) are most
likely to be affected by activities such as seismic air gun surveys.
Key words: audiogram; evoked potential; freshwater fishes; hearing.
DOI: 10.1111/j.1095-8649.2006.01279.x
http://www.blackwell-synergy.com/doi/abs/10.1111/j.1095-8649.2006.01279.x
Sincerly
Sonja Amoser
Sonja Amoser, PhD Student
University of Vienna, Dept. Behavioural Biology
Althanstrasse 14, 1090 Vienna, Austria
Phone: +43-1-4277-54467 oder +43-664-5006106 (private)
Fax: +43-1-4277-54506
email:
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