The inner ear ultrastructure from the paddlefish (<i>Polyodon spathula</i>) using transmission electron microscopy

Lovell, J. M.; Findlay, Malcolm; Harper, Glenn; Moate, Roy

doi:10.1111/j.1365-2818.2006.01566.x

Cited by 6 publications

(4 citation statements)

References 32 publications

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“…The use of the SEM in the examination of the hair cells responsible for the mediation of auditory and gravistatic stimuli has been used to considerable effect on mammals (Lenoir et al , 1987; Ma et al , 2000), lower vertebrates, such as fish (Platt, 1977; Lovell et al , 2005b) and invertebrates (Lovell et al , 2005a, 2006). However, no histological examinations have, so far, been conducted on the inner ear hair cells from S. scrofa .…”

Section: Discussionmentioning

confidence: 99%

The morphology of the inner ear from the domestic pig (Sus scrofa)

Lovell¹,

Harper

2007

Journal of Microscopy

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SummaryThe morphology of the hair cells of the inner ear end organs from the domestic pig (Sus scrofa) have been studied using a combination of Scanning and Transmission Electron Microscopy (SEM and TEM), revealing hair cells from the cochlea and vestibule using a novel surgical and technical approach. This is the first time that the inner ear hair cells from S. scrofa have been studied, thus providing useful anatomical information on the morphology of the hair cells from the cochlea, saccule and utricle from a large mammal. Anatomical information in relation to the morphology of the inner ear is of considerable importance, both in the pathological diagnosis of trauma and in the development of cochlea implants and other biotechnological systems associated with the enhancement of hearing. Standard fixation protocols using cardiac perfusion was not employed in this study as this method cannot always be applied, such as the pathological examination of the human ear, or the study of animals protected by endangered species legislation. With the exception of a very few countries, cetaceans cannot be killed for research purposes, yet physiological information on the inner ear from these species is urgently required for ecological assessment reasons. Supporting the use of S. scrofa as a model for cetacean hearing research is that this animal is a member of the order Artiodactyla, which includes both the hippopotamus and cetaceans. Being of a similar size, the pig is an ideal subject for developing protocols and surgical techniques required to investigate both the human and small cetacean auditory systems.

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Section: Discussionmentioning

confidence: 99%

The morphology of the inner ear from the domestic pig (Sus scrofa)

Lovell¹,

Harper

2007

Journal of Microscopy

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“…EDTA is commonly used in the preparation of bone materials where extremely thin cuts are essential, but its use is not common in SEM. 15 , 16 , 17 The use of EDTA in our study aimed to determine whether it would also facilitate the preparation of this material for SEM, and we found both positive and negative aspects.…”

Section: Discussionmentioning

confidence: 90%

Use of scanning electron microscopy in the cochlea of guinea pigs

Iha

Cruz

2020

Brazilian Journal of Otorhinolaryngology

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“…Because paddlefish rely on weak electrical pulses emitted from their prey (Freund et al 2002), filter feeding may be less efficient in these sediment plumes owing to interference from suspended particles. The specialized inner ear ultrastructure of paddlefish could also be damaged by sonic emissions from barges (Lovell et al 2006), which could elicit this avoidance response.…”

Section: Discussionmentioning

confidence: 99%

Movement and Habitat Use of Stocked Juvenile Paddlefish in the Ohio River System, Pennsylvania

Barry

Carline

Argent

et al. 2007

N American J Fish Manag

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In 2002 and 2003 we released a total of 66 hatchery-reared, juvenile paddlefish Polyodon spathula (249-318 mm eye-to-fork length) in Pennsylvania's upper Ohio River system and tracked them with radiotelemetry in two different pools of the Ohio and Allegheny rivers to determine (1) poststocking survival, (2) whether release site influences survival, (3) dispersal distance and direction of movement, and (4) habitat selection. Survival was fair (mean ¼ 78% in 2002 and 67% in 2003) for 0.23-0.43-kg paddlefish after 9 weeks. In 2003, fish stocked in the upstream half of the pool had a greater survival (100%) after 63 d than those stocked in the downstream half (44%). Within 4 d of stocking, 77% of juvenile paddlefish were located in tailwaters, and fish found these habitats regardless of stocking location. Habitat measurements at all postdispersal locations had median depths of 5.2 and 6.1 m in 2002 and 2003, respectively, and median nearsurface velocities of 0.17 and 0.12 m/s. Fish selected tailwater habitats and avoided habitats with disturbance from commercial barge traffic in both years.

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The inner ear ultrastructure from the paddlefish (Polyodon spathula) using transmission electron microscopy

Cited by 6 publications

References 32 publications

The morphology of the inner ear from the domestic pig (Sus scrofa)

The morphology of the inner ear from the domestic pig (Sus scrofa)

Use of scanning electron microscopy in the cochlea of guinea pigs

Movement and Habitat Use of Stocked Juvenile Paddlefish in the Ohio River System, Pennsylvania

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