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Titolo:
Effects of underwater noise on auditory sensitivity of a cyprinid fish
Autore:
Scholik, AR; Yan, HY;
Indirizzi:
Univ Kentucky, Sch Biol Sci, Mechanosensory Physiol Lab, Lexington, KY 40506 USA Univ Kentucky Lexington KY USA 40506 Physiol Lab, Lexington, KY 40506 USA
Titolo Testata:
HEARING RESEARCH
fascicolo: 1-2, volume: 152, anno: 2001,
pagine: 17 - 24
SICI:
0378-5955(200102)152:1-2<17:EOUNOA>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
SENSORY HAIR-CELLS; EAR; SOUND; HETEROGENEITY; GASBLADDER;
Keywords:
auditory brainstem response; noise induced hearing loss; temporary threshold shift; fathead minnow;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
28
Recensione:
Indirizzi per estratti:
Indirizzo: Scholik, AR Univ Kentucky, Sch Biol Sci, Mechanosensory Physiol Lab, Lexington, KY 40506 USA Univ Kentucky Lexington KY USA 40506 Lexington, KY 40506 USA
Citazione:
A.R. Scholik e H.Y. Yan, "Effects of underwater noise on auditory sensitivity of a cyprinid fish", HEARING RES, 152(1-2), 2001, pp. 17-24

Abstract

The ability of a fish to interpret acoustic information in its environmentis crucial for its survival. Thus, it is important to understand how underwater noise affects fish hearing. In this study, the fathead minnow (Pimephales promelas) was used to examine: (1) the immediate effects of white noise exposure (0.3-4.0 kHz, 142 dB re: 1 mu Pa) on auditory thresholds and (2)recovery after exposure. Audiograms were measured using the auditory brainstem response protocol and compared to baseline audiograms of fathead minnows not exposed to noise. Immediately after exposure to 24 h of white noise,five out of the eight frequencies tested showed a significantly higher threshold compared to the baseline fish. Recovery was found to depend on both duration of noise exposure and auditory frequency. These results support the hypothesis that the auditory threshold of the fathead minnow can be altered by white noise, especially in its most sensitive hearing range (0.8-2.0 kHz), and provide evidence that these effects call be long term (>14 days). (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/12/20 alle ore 22:35:10