Lagenar potentials of the vocal plainfin midshipman fish, Porichthys notatus

Vetter, Brooke J.; Seeley, Lane; Sisneros, Joseph A.

doi:10.1007/s00359-018-01314-0

Cited by 20 publications

(9 citation statements)

References 56 publications

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“…The asteriscus, which was closest to swim bladder distance, exhibited the highest acceleration among all otoliths. This was different from the findings in sleeper goby ( Dormitator latifrons ) and plainfin midshipman, which showed that the thresholds of the lagenar potentials were higher than those of the saccule (Lu et al, 2003; Lu et al, 2010; Vetter et al, 2019). The difference between lagenar and saccular vibration might be due to the distance from the swim bladder to the otoliths (Fig.…”

Section: Discussioncontrasting

confidence: 99%

Swim bladder resonance enhances hearing in crucian carp (Carassius auratus)

Gao

Song

et al. 2022

Preprint

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Sound sensing is vital for fish and more effort is necessary to address the hearing mechanism in fish. Here, we performed auditory evoked potentials (AEP) measurement, micro-computed tomography (Micro-CT) scanning, and numerical simulation to investigate the resonance of swim bladder and its influence on auditory sensitivity in crucian carp (Carassius auratus). The AEP results showed that at the tested frequency range up to 1000 Hz, the mean auditory thresholds of control fishes with an intact swim bladder were lower than that of treated fishes with a deflated swim bladder by 0.38–30.52 dB re 1 μPa. At the high frequency end, control fishes had a high but measurable auditory threshold. Correspondingly, numerical simulations showed that the intact swim bladder had a mean resonance frequency of 826±13.6 Hz, ranging from 810 to 840 Hz while the deflated swim bladder had no predominant resonance peak below 1000 Hz. The amplitude of received sound pressure at the resonance frequency for a sample in control group was 34.3 dB re 1 μPa higher than that for a treated sample, and the acceleration at the asteriscus of the control fish was higher than the treat fish by 43.13 dB re 1 m s-2. Both AEP experiment and modeling results showed that hearing sensitivity is enhanced through resonance of swim bladder in crucian carp and provided additional understandings on hearing mechanism in fish.

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Section: Discussioncontrasting

confidence: 99%

Swim bladder resonance enhances hearing in crucian carp (Carassius auratus)

Gao

Song

et al. 2022

Preprint

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“…At frequencies above 200 Hz, when the swim bladder contribution increases, greater local particle motion may be transmitted to the asteriscus, resulting in a stronger motion of this otolith. Note that a recent study on the plainfin midshipman (Porichthys notatus Girard, 1854) [57], a species that lacks an otophysic connection, indicates that auditory thresholds of the lagena (based on sound pressure and particle acceleration) were higher than that of the saccule in the frequency range from 85 to 505 Hz.…”

Section: Otolith Mass and The Type Of Otophysic Connection Apparently Affect Otolith Motionmentioning

confidence: 98%

Auditory chain reaction: Effects of sound pressure and particle motion on auditory structures in fishes

et al. 2020

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Despite the diversity in fish auditory structures, it remains elusive how otolith morphology and swim bladder-inner ear (= otophysic) connections affect otolith motion and inner ear stimulation. A recent study visualized sound-induced otolith motion; but tank acoustics revealed a complex mixture of sound pressure and particle motion. To separate sound pressure and sound-induced particle motion, we constructed a transparent standing wave tubelike tank equipped with an inertial shaker at each end while using X-ray phase contrast imaging. Driving the shakers in phase resulted in maximised sound pressure at the tank centre, whereas particle motion was maximised when shakers were driven out of phase (180˚). We studied the effects of two types of otophysic connections-i.e. the Weberian apparatus (Carassius auratus) and anterior swim bladder extensions contacting the inner ears (Etroplus canarensis)-on otolith motion when fish were subjected to a 200 Hz stimulus. Saccular otolith motion was more pronounced when the swim bladder walls oscillated under the maximised sound pressure condition. The otolith motion patterns mainly matched the orientation patterns of ciliary bundles on the sensory epithelia. Our setup enabled the characterization of the interplay between the auditory structures and provided first experimental evidence of how different types of otophysic connections affect otolith motion.

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“…These end organ differences in HC number are likely related to the end organ size of the macular area with the saccule having the largest macular area in general (note, we did not compare the macular areas of the utricle, lagena, and saccule, but the differences in end organ size visually are obvious). Not sur-prisingly, the lagena, which is the smallest end organ, is significantly less sensitive than the saccule and utricle based on HC auditory evoked potentials [Colleye et al, 2019;Vetter et al, 2019;Rogers and Sisneros, 2020]. In addition to having fewer total HCs as we report here, the lagena also has the lowest otolith mass (smallest of the three end organs) and contains an otolith (asteriscus) that is predominantly composed of lighter vaterite [Campana, 1999;Reimer et al, 2016].…”

Section: Discussionmentioning

confidence: 57%

Ontogeny of Inner Ear Saccular Development in the Plainfin Midshipman (Porichthys notatus)

Lozier

Sisneros

2020

Brain Behav Evol

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The auditory system of the plainfin midshipman fish (<i>Porichthys notatus</i>) is an important sensory system used to detect and encode biologically relevant acoustic stimuli important for survival and reproduction including social acoustic signals used for intraspecific communication. Previous work showed that hair cell (HC) density in the midshipman saccule increased seasonally with reproductive state and was concurrent with enhanced auditory saccular sensitivity in both females and type I males. Although reproductive state-dependent changes in HC density have been well characterized in the adult midshipman saccule, less is known about how the saccule changes during ontogeny. Here, we examined the ontogenetic development of the saccule in four relative sizes of midshipman (larvae, small juveniles, large juveniles, and nonreproductive adults) to determine whether the density, total number, and orientation patterns of saccular HCs change during ontogeny. In addition, we also examined whether the total number of HCs in the saccule differ from that of the utricle and lagena in nonreproductive adults. We found that HC density varied across developmental stage. The ontogenetic reduction in HC density was concurrent with an ontogenetic increase in macula area. The orientation pattern of saccular HCs was similar to the standard pattern previously described in other teleost fishes, and this pattern of HC orientation was retained during ontogeny. Lastly, the estimated number of saccular HCs increased with developmental stage from the smallest larvae (2,336 HCs) to the largest nonreproductive adult (145,717 HCs), and in nonreproductive adults estimated HC numbers were highest in the saccule (mean ± SD = 28,479 ± 4,809 HCs), intermediate in the utricle (mean ± SD = 11,008 ± 1,619 HCs) and lowest in the lagena (mean ± SD = 4,560 ± 769 HCs).

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Lagenar potentials of the vocal plainfin midshipman fish, Porichthys notatus

Cited by 20 publications

References 56 publications

Swim bladder resonance enhances hearing in crucian carp (Carassius auratus)

Swim bladder resonance enhances hearing in crucian carp (Carassius auratus)

Auditory chain reaction: Effects of sound pressure and particle motion on auditory structures in fishes

Ontogeny of Inner Ear Saccular Development in the Plainfin Midshipman (Porichthys notatus)

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