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Effects of fish size and temperature on weakfish disturbance calls: implications for the mechanism of sound generation.
It is suggested that the lower dominant frequency of larger fish is caused by a longer pulse (=longer muscle twitch) and not by the lower resonant frequency of a larger swimbladder.
Seasonal and geographical variation of the mating call of the oyster toadfish Opsanus tau L.
- M. Fine
- Environmental ScienceOecologia
SummaryThe boatwhistle, the mating call of the oyster toadfish Opsanus tau L. undergoes a pronounced seasonal cycle. The fundamental frequency increases to a peak early in the summer and then…
Sound-Generating Mechanisms in Fishes: A Unique Diversity in Vertebrates
Fishes have evolved the largest diversity of sonic organs among vertebrates and sound-generating mechanisms may be similarly developed in males and females (croaking gourami) or sexually dimorphic, in which case they are always better developed in females.
Variability in the role of the gasbladder in fish audition
Hearing in two species (the blue gourami Trichogaster trichopterus, and the oyster toadfish Opsanus tau) without a mechanical linkage is investigated, suggesting that the gasbladder may not serve an auditory enhancement function in teleost fishes that lack mechanical coupling between the gas Bladder and the inner ear.
Movement and sound generation by the toadfish swimbladder
- M. Fine, Karl L. Malloy, Charles King, Steve L. Mitchell, T. Cameron
- PhysicsJournal of Comparative Physiology A
- 1 June 2001
Movement of the swimbladder caused by sonic muscle stimulation in the oyster toadfish Opsanus tau is measured and it is suggested that rapid muscle speed evolved to generate sound from an inefficient highly damped system.
Faunal variation on pelagic Sargassum
- M. Fine
- Environmental Science
- 1 October 1970
Pelagic Sargassum was collected in late summer, late winter, and early and late spring from inshore waters, the Gulf Stream and the Sargasso Sea of the Western North Atlantic Ocean. The noncolonial…
Pectoral Spine Locking and Sound Production in the Channel Catfish Ictalurus punctatus
The anatomical basis for locking and sound production of the pectoral spine in the channel catfish, Ictalurus punctatus, is examined and it is found that the pulse frequency spectrum appears to be determined predominantly by the pECToral girdle, a nonspecialized acoustic radiator, and the swimbladder does not play an active role in sound production.
Acoustic communication in two freshwater gobies: ambient noise and short-range propagation in shallow streams.
To determine environmental constraints on the communication of two freshwater gobies Padogobius martensii and Gobius nigricans, numerous noise spectra were measured from quiet areas and ones adjacent to waterfalls and rapids in two shallow stony streams.
Comparison of sarcoplasmic reticulum capabilities in toadfish (Opsanus tau) sonic muscle and rat fast twitch muscle
- J. Feher, Tyler D. Waybright, M. Fine
- Biology, Environmental ScienceJournal of Muscle Research & Cell Motility
- 1 August 1998
The sonic muscle of the oyster toadfish, Opsanus tau, can produce unfused contractions at 300Hz, yet the toad fish sonic muscle supports more rapid contractions, suggesting that the voluminous SR provides activator Ca2+ for contraction, but the abundant parvalbumin plays a major role in relaxation.
Acoustic pressure and particle motion thresholds in six sciaenid fishes
- A. Horodysky, R. Brill, M. Fine, J. Musick, R. Latour
- Environmental Science, BiologyJournal of Experimental Biology
- 1 May 2008
Auditory thresholds of these species were used to estimate idealized propagation distances of sciaenid vocalizations in coastal and estuarine environments and foundSciaenids were most sensitive at low frequencies that overlap the peak frequencies of their vocalizations.