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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/45987

Title: The auditory roles of the gas bladder and suprabranchial chamber in walking catfish (Clarias batrachus)
Authors: Yi Ta Shao
I-Shiung Chen
Hong Young Yan
Contributors: 國立臺灣海洋大學:海洋生物研究所
Keywords: Suprabranchial chamber
AEP
Hearing ability
Catfish
Weberian apparatus
Date: 2014
Issue Date: 2018-04-19T01:52:35Z
Publisher: Zoological Studies
Abstract: Abstract: Background
The enhanced auditory abilities of certain fish are dependent on specialized hearing structures. Several gas-holding structures, including the suprabranchial chamber, otic gas bladder, and Weberian apparatus-linked gas bladder, have been demonstrated to improve the hearing ability of fish. The walking catfish (Clarias batrachus), a benthic species, is unique in that it has both a suprabranchial chamber (SC) and a Weberian apparatus-linked, encapsulated gas bladder (WGB). This study aimed to investigate the respective roles of these two structures in contributing to the overall hearing ability of walking catfish.

Results
The auditory evoked potentials method was used to measure hearing thresholds in intact fish and fish with a deflated WGB and/or SC. Gas removal from the WGB increased auditory thresholds at all frequencies tested (0.4 to 5.0 kHz), whereas injection of water into the SC shifted the threshold only at frequencies below 3.0 kHz. However, such a correlation was not observed for the SC at 4.0 and 5.0 kHz.

Conclusions
The findings indicated that both the encapsulated WGB and the SC had an accessory auditory role. However, WGB enhanced hearing abilities in the whole frequency range, whereas SC did not.
Relation: 53(1)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/45987
Appears in Collections:[海洋生物研究所] 期刊論文

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