Physiology and Function of the Swimbladder

Blaxter, J. H. S.; Tytler, P.

doi:10.1016/b978-0-12-011507-5.50010-0

Cited by 73 publications

(47 citation statements)

References 80 publications

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“…Rather, there would seem to be an antero-posterior contraction wave through the different bundles of the vesica longitudinalis (see Movie1 in supplementary material). The sphincter is usually implicated in the gas exchanges between the anterior chamber and the posterior one (Fange and Wittenberg, 1958;Dehadrai, 1959;Blaxter and Tytler, 1978). Contraction of the swimbladder might also create gas movement from one chamber to the other, causing vibration of the diaphragm and sound production.…”

Section: Discussionmentioning

confidence: 99%

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Potential mechanism of sound production in Oreochromis niloticus(Cichlidae)

Longrie

Wassenbergh

Vandewalle

et al. 2009

Journal of Experimental Biology

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Section: Discussionmentioning

confidence: 99%

“…According to Skoglund (Skoglund, 1961) and Blaxter and Tytler (Blaxter and Tytler, 1978), damage to the swimbladder (destruction, deflation, filling with water) can reduce the sound output. In the toadfish (Opsanus tau), partial deflation of the bladder reduces the amplitude without altering the sound spectrum (Ladich and Fine, 2006).…”

Section: Discussionmentioning

confidence: 99%

Potential mechanism of sound production in Oreochromis niloticus(Cichlidae)

Longrie

Wassenbergh

Vandewalle

et al. 2009

Journal of Experimental Biology

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“…Swim bladders are gas-filled sacs that are located dorsally in the abdominal cavity and serve a variety of functions including buoyancy control, respiration and sound production [Steen, 1970]. They also act as accessory auditory structures in certain fishes [Blaxter and Tytler, 1978], thereby expanding the range of frequencies detected and hearing sensitivity [Popper and Fay, 1999]. The anatomical differences found in the swim bladders of the Atlantic croaker, spotted seatrout, kingfish and spot might have implications for auditory sensitivity and capability, as there is evidence in other species that the proximity of the swim bladder to the ear enhances hearing Popper, 1974, 1975;Popper, 1983].…”

Section: Referencesmentioning

confidence: 99%

Sciaenid Inner Ears: A Study in Diversity

Ramcharitar

Higgs

Popper³

2001

Brain Behav Evol

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Sciaenid fishes (Family Sciaenidae) could potentially serve as models for understanding the relationship between structure and function in the teleost auditory system, as they show a broad range of variation in not only the structure of the ear but also in the relationship between the ear and swim bladder. In this study, scanning electron microscopy (SEM) was used to investigate inner ear ultrastructure of the Atlantic croaker (Micropogonias undulatus), spotted seatrout (Cynoscion nebulosus), kingfish (Menticirrhusamericanus) and spot (Leiostomus xanthurus). These species reflect the diversity of otolith and swim bladder morphology in sciaenids. The distribution of different hair cell bundle types, as well as hair cell orientation patterns on the saccular and lagenar maculae of these fishes were similar to one another. The rostral ends of the saccular sensory epithelia (maculae) were highly expanded in a dorsal-ventral direction in the Atlantic croaker and spotted seatrout as compared to the kingfish and spot. Also, ciliary bundles of the saccular maculae contained more stereocilia in the Atlantic croaker and spotted seatrout as compared with kingfish and spot. The shapes of the lagenar maculae were similar in all four species. In the Atlantic croaker and spotted seatrout lagenar maculae, the number of stereocilia per bundle was greater than those for the kingfish and spot. Given that saccular macula shape and numbers of stereocilia per bundle correlate with swim bladder proximity to the ear in the studied species, it is possible that inner ear ultrastructure could be indicative of auditory ability in fishes.

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“…The swimbladder, an organ responsible for much of the success and diversity of fishes, functions as an oxygen reservoir, an organ for buoyancy and in some cases, as an acoustic organ for sound production and hearing [1][2][3]. The bladder counteracts heavier bone and muscle tissue and can increase buoyancy to the point that fishes are weightless in water (neutrally buoyant) or in the case of the oyster toadfish weigh less in water than with the bladder removed, i.e.…”

Section: Introductionmentioning

confidence: 99%

Wall structure and material properties cause viscous damping of swimbladder sounds in the oyster toadfishOpsanus tau

et al. 2016

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Despite rapid damping, fish swimbladders have been modelled as underwater resonant bubbles. Recent data suggest that swimbladders of soundproducing fishes use a forced rather than a resonant response to produce sound. The reason for this discrepancy has not been formally addressed, and we demonstrate, for the first time, that the structure of the swimbladder wall will affect vibratory behaviour. Using the oyster toadfish Opsanus tau, we find regional differences in bladder thickness, directionality of collagen layers (anisotropic bladder wall structure), material properties that differ between circular and longitudinal directions (stress, strain and Young's modulus), high water content (80%) of the bladder wall and a 300-fold increase in the modulus of dried tissue. Therefore, the swimbladder wall is a viscoelastic structure that serves to damp vibrations and impart directionality, preventing the expression of resonance.

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Physiology and Function of the Swimbladder

Cited by 73 publications

References 80 publications

Potential mechanism of sound production in Oreochromis niloticus(Cichlidae)

Potential mechanism of sound production in Oreochromis niloticus(Cichlidae)

Sciaenid Inner Ears: A Study in Diversity

Wall structure and material properties cause viscous damping of swimbladder sounds in the oyster toadfishOpsanus tau

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