W-Shaped Auditory Threshold Curves of Masu Salmon Oncorhynchus masou.

Kojima, Takeo; Shimamura, Tetsuya; Yoza, Kazumasa; Okumoto, Naoto; Hatakeyama, Yoshimi; Soeda, Hideo

doi:10.2331/suisan.58.1447

Cited by 13 publications

(11 citation statements)

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“…It is necessary to conduct experiments on fish in air using this new method and to compare the results with those of previous studies. 6,7,[13][14][15][16][17][18] Sound pressure values in the audiogram obtained in the present experiment were higher than those obtained by Chapman and Sand 23 and by Zhang et al 19 (Fig. 9).…”

Section: Discussionmentioning

confidence: 56%

“…But it is possible to obtain sound pressure thresholds for pressure‐sensitive fish that have swim bladders using the two‐speaker system that fixes fish in water. It is necessary to conduct experiments on fish in air using this new method and to compare the results with those of previous studies 6,7 , 13–18 …”

Section: Discussionmentioning

confidence: 99%

“…[5][6][7][8][9][10][11][12] A well-known method to eliminate water displacement when measuring fish audiograms is to face two loudspeakers towards each other and then place a fish between the speakers. 6,7,[13][14][15][16][17][18][19][20] To date, there is no method available to determine the effect of water displacement on this method because the measurement of displacement is quite difficult in an auditory experiment.…”

Section: Introductionmentioning

confidence: 99%

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Sound pressure values in the audiogram of marbled sole Pleuronectes yokohamae measured in air

Suga¹,

Kawabe

Hiraishi³

et al. 2004

Fisheries Sci

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It has been reported that sound pressure values in the audiogram of marbled sole, which do not have swim bladders, are as low as those of fish that have swim bladders when the audiogram was measured in water using two air loudspeakers to eliminate the water displacement. In the present experiment, sound pressure values in the audiogram of 10 marbled sole Pleuronectes yokohamae were determined using sinusoidal sound pressure as a stimulus to fish removed from water. Sound pressure values in the audiogram obtained by the present method were higher than those obtained in water. This difference was presumably due to inner ear or lateral line sensitivity to water displacement around the center of the water tank.

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Section: Discussionmentioning

confidence: 56%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Sound pressure values in the audiogram of marbled sole Pleuronectes yokohamae measured in air

Suga¹,

Kawabe

Hiraishi³

et al. 2004

Fisheries Sci

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“…The fish may also detect sound indirectly when the otoliths receive displacement inputs from the walls of the swimbladder or other gas‐filled chambers near the ears as they change their volume due to sound pressure fluctuations 23 Figure 6. presents the audiograms of jack mackerel, together with several demersal and pelagic hearing generalist fish species 24–30 relative to the payao sound spectrum. The most sensitive frequencies of demersal species such as red sea bream Pagrus major , rockfish Sebastes schlegeli and flatfish Paralichthys olivaceus , or those in high‐energy habitats like salmon Oncorhynchus masou , are generally less than 200 Hz.…”

Section: Discussionmentioning

confidence: 99%

Sound generated by a payao and comparison with auditory sensitivity of jack mackerelTrachurus japonicus

et al. 2008

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Sound generated by a payao, an anchored bamboo fish aggregating device, is believed to be attractive to fish; but until now, there is no available record of payao‐generated sound. This study presents payao‐generated sound recorded by a hydrophone at water depths of 5, 10 and 15 m from a fixed distance of 3 m relative to the payao, and compares the sound with the auditory sensitivity of jack mackerel Trachurus japonicus measured at discrete frequencies from 100 to 2000 Hz using the auditory brainstem response protocol. A consistent peak appeared in the sound spectrum at 49 Hz and showed an increasing sound pressure level with depth, which suggests that payao sound may come from the anchor rope. However, the contribution of the bamboo raft can not yet be discounted. The hearing threshold curve indicated that the most sensitive frequency range in jack mackerel is from 92.1 dB at 800 Hz to 111.0 dB at 200 Hz. These results show that the dominant frequency range of payao sound does not correspond with the high sensitivity frequency range of fish hearing.

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“…For these species, the pressure component of the passing sound cannot be picked up and transmitted into the inner ear and hence the hearing ability is limited. Figure 3.4 shows audiograms obtained from several commercially harvested species: bastard halibut (Fujieda et al 1996 ), red sea bream (Ishioka et al 1988 ), jacopever ( Sebastes schlegeli ) (Motomatsu et al 1996 ), walleye pollock ( Theragra (Akamatsu et al 2003 ), and masu salmon ( Oncorhynchus masou ) (Kojima et al 1992 ). Although sound frequencies were limited to 2000 Hz during tests, the audiograms clearly indicate that the most sensitive frequency range lies between 100 and 1000 Hz.…”

Section: Hearing Abilities Of Fishmentioning

confidence: 99%