.... sonar); however, boat noise is more pervasive, continuous, and its highest intensity and component frequencies overlap the auditory bandwidth of most fishes. We assessed the impacts of boat noise on saccular sensory hair cell density and hearing thresholds of a soniferous species, Atlantic croaker...

... the sensory basis for this underappreciated behavior of larval fish. A strong candidate is the mechanosensory lateral line, a hair cell-based sensory system that detects hydrodynamic information from sources such as water currents, predators, prey and surface waves. However, a role for the lateral line...

... of the sensory epithelium. Second, we compared DPOAE (2 f 1 – f 2 ) responses with histopathologic changes occurring in bullfrogs after noise exposure. Consistent morphological damage, such as fragmented hair cells and missing bundles, as well as elimination of DPOAE responses were seen only after very high...

.... Additionally, saccule hair cell densities were compared across reproductive groups. Auditory threshold was evaluated in terms of pressure and particle acceleration, and response amplitude and onset latency were measured at 10 dB above threshold. Relative to males, females displayed lower auditory thresholds...

... for correspondence ( [email protected] ) 23 8 2010 © 2010. 2010 lateral line system hair cells predator–prey interaction density specific gravity A broad diversity of fish prey on smaller fish using suction feeding ( Lauder, 1980 ; Ferry-Graham and Lauder, 2001 ; Juanes et al., 2002...

.... Furthermore, we repeated these measurements after pharmacologically ablating the lateral line hair cells and found that drag reduction was not adversely influenced by disabling the lateral line system. Therefore, flow sensing does not facilitate active drag reduction. However, we discovered that ablating...

...{document} where n is the number of hair cells and q t is the hair bundle torsion stiffness [2.9×10 –14 N m rad –1 in Acerina cernua ( van Netten and Kroese,1987 )]. We used the values of n reported by Harris and colleagues for each neuromast locus( Harris et al., 2003 ). These boundary...

... of individual neuromasts. Each neuromast possesses a gelatinous cupula that is anchored to hair cells by kinocilia. Using quasi-static bending tests of the proximal region of the cupula, we found that flexural stiffness is proportional to the number of hair cells, and consequently the number of kinocilia...