The polarization of hair cells from the inner ear of the lesser spotted dogfish <i>Scyliorhinus canicula</i>

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

doi:10.1111/j.1095-8649.2006.01304.x

Cited by 7 publications

(10 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Mainly two vertical groups of ciliary bundles are present. In the anterior portion these vertically oriented bundles are brought into a new horizontal orientation by upwards curving of the macula in this region ( Figure 6B; Lowenstein et al, 1964;Corwin, 1981;Lovell et al, 2007; but see Figure 6A; Barber and Emerson, 1980).…”

Section: Macula Sacculimentioning

confidence: 99%

“…a, anterior;d, dorsal. shaped and contains two main orientation groups. In rays, these differently orientated ciliary bundles are less strictly organized into two separate groups ( Figure 9A; Barber and Emerson, 1980;Lowenstein et al, 1964), whereas sharks seem to show two distinct groups on their macula lagenae ( Figure 9B; Lovell et al, 2007). In contrast to bony fishes, the few studies on the macula lagenae in cartilaginous fishes (Barber and Emerson, 1980;Lovell et al, 2007) indicate that the posterior "orientation group" on the macula shows ciliary bundles oriented in anterodorsal direction while in bony fishes ciliary bundles of the posterior orientation group mainly point in posteroventral direction (compare Figures 9A,B with Figures 9C-E, G-H, …”

Section: Macula Lagenaementioning

confidence: 99%

“…well as for cartilaginous fishes (Lowenstein et al, 1964;Barber and Emerson, 1980;Lovell et al, 2007). Most studies on macula morphology in Chondrichthyes focused on the macula neglecta in Elasmobranchii (Corwin, 1981(Corwin, , 1989Myrberg, 2001;Casper, 2011).…”

Section: Figure 4 | Continuedmentioning

confidence: 99%

“…In cartilaginous fishes, for example, the studies by Lowenstein et al (1964) and Barber and Emerson (1980) indicated that ciliary bundles with opposing orientation are interspersed in the radial orientation pattern of ciliary bundles on the cotillus ( Figure 5A). In addition, the macula utriculi of the lesser spotted dogfish Scyliorhinus canicula seems to lack a striola region (Lovell et al, 2007).…”

Section: Macula Utriculimentioning

confidence: 99%

“…The rectangle in C indicates the striola region of the macula sacculi. Illustrations modified from Barber and Emerson (1980), Lovell et al (2005Lovell et al ( , 2007, Mathiesen and Popper (1987), Platt et al (2004), Popper (1978), and Popper and Northcutt (1983). a, anterior;d, dorsal. shaped and contains two main orientation groups.…”

Section: Macula Lagenaementioning

confidence: 99%

See 4 more Smart Citations

Diversity in Fish Auditory Systems: One of the Riddles of Sensory Biology

2016

View full text Add to dashboard Cite

An astonishing diversity of inner ears and accessory hearing structures (AHS) that can enhance hearing has evolved in fishes. Inner ears mainly differ in the size of the otolith end organs, the shape and orientation of the sensory epithelia, and the orientation patterns of ciliary bundles of sensory hair cells. Despite our profound morphological knowledge of inner ear variation, two main questions remain widely unanswered. (i) What selective forces and/or constraints led to the evolution of this inner ear diversity? (ii) How is the morphological variability linked to hearing abilities? Improved hearing is mainly based on the ability of many fish species to transmit oscillations of swim bladder walls or other gas-filled bladders to the inner ears. Swim bladders may be linked to the inner ears via a chain of ossicles (in otophysans), anterior extensions (e.g., some cichlids, squirrelfishes), or the gas bladders may touch the inner ears directly (labyrinth fishes). Studies on catfishes and cichlids demonstrate that larger swim bladders and more pronounced linkages to the inner ears positively affect both auditory sensitivities and the detectable frequency range, but lack of a connection does not exclude hearing enhancement. This diversity of auditory structures and hearing abilities is one of the main riddles in fish bioacoustics research. Hearing enhancement might have evolved to facilitate intraspecific acoustic communication. A comparison of sound-producing species, however, indicates that acoustic communication is widespread in taxa lacking AHS. Eco-acoustical constraints are a more likely explanation for the diversity in fish hearing sensitivities. Low ambient noise levels may have facilitated the evolution of AHS, enabling fish to detect low-level abiotic noise and sounds from con-and heterosopecifics, including predators and prey. Aquatic habitats differ in ambient noise regimes, and preliminary data indicate that hearing sensitivities of fishes vary accordingly.

show abstract

Section: Macula Sacculimentioning

confidence: 99%

Section: Macula Lagenaementioning

confidence: 99%

Section: Figure 4 | Continuedmentioning

confidence: 99%

Section: Macula Utriculimentioning

confidence: 99%

Section: Macula Lagenaementioning

confidence: 99%

See 3 more Smart Citations

Diversity in Fish Auditory Systems: One of the Riddles of Sensory Biology

2016

View full text Add to dashboard Cite

show abstract

The auditory system of cartilaginous fishes

Chapuis

Collin

2022

Rev Fish Biol Fisheries

View full text Add to dashboard Cite

Interspecific Variation in the Inner Ear Maculae of Sharks

Sauer,

Yopak,

Radford

2023

Integrative Organismal Biology

View full text Add to dashboard Cite

Synopsis There is well-documented diversity in the organization of inner ear hair cells in fishes; this variation is thought to reflect the differing functional requirements of species across a range of ecological niches. However, relatively little is known about interspecific variation (and its potential ecological implications) in the number and density of inner ear hair cells in elasmobranchs (sharks, skates, and rays). In this study, we quantified inner ear hair cells in the saccule, lagena, utricle, and macula neglecta of 9 taxonomically and ecologically distinct shark species. Using phylogenetically informed comparative approaches, sharks that feed in the water column had significantly greater hair cell density and total number of hair cells in the lagena and macula neglecta (i.e., vertically oriented maculae) compared to species that feed primarily on the seafloor. In addition, sharks within Carcharhinidae seemingly possess a specialized macula neglecta compared to other shark species. Overall, findings suggest that, similar to bony fishes, there is considerable variation in hair cell organization of shark inner ears, which may be tied to variation in ecology and/or specialized behaviors between different species.

show abstract

The polarization of hair cells from the inner ear of the lesser spotted dogfish Scyliorhinus canicula

Cited by 7 publications

References 33 publications

Diversity in Fish Auditory Systems: One of the Riddles of Sensory Biology

Diversity in Fish Auditory Systems: One of the Riddles of Sensory Biology

The auditory system of cartilaginous fishes

Interspecific Variation in the Inner Ear Maculae of Sharks

Contact Info

Product

Resources

About