Full Description

"At LF band, two types of signals have been recorded and characterized. They showed typical acoustic properties and daily patterns belonging to fishes of the Ophididae family, in particular Ophidion rochei (Parmentier et al., 2010). Within the vocalizations of this species, the acoustic features (in amplitude and frequency band), the pulse rate and the peaking during dusk and dawn are distinctive. Ophidion rochei is a Mediterranean species that typically lives in the sand, but its presence in Posidonia habitat has been also recorded (Keskin, 2007). In this study, we obtained that the frequency characteristics of these fish sounds are different between the two habitats: even if the bandwidth is comparable, the peak of frequency in sandy habitat is higher of about 20 Hz. The MF band (over 0.5 kHz) is not used by other species in sandy habitat, while in Posidonia is totally saturated by the presence of other fish sounds."

Observation Environment Quotes

"Data collection was carried out along the south-western coast of Sicily, in an area comprised between Capo Granitola and Tre Fontane villages (Fig. 1). Here, the seascape is distinguished by an alternation of patches of sandy, rock and Posidonia oceanica meadows. This area is characterized by upwelling phenomena (Bonanno et al., 2014) promoting the primary and secondary production"

Sound Name Quotes

"At LF band, two types of signals have been recorded and characterized. They showed typical acoustic properties and daily patterns belonging to fishes of the Ophididae family, in particular Ophidion rochei (Parmentier et al., 2010). Within the vocalizations of this species, the acoustic features (in amplitude and frequency band), the pulse rate and the peaking during dusk and dawn are distinctive. Ophidion rochei is a Mediterranean species that typically lives in the sand, but its presence in Posidonia habitat has been also recorded (Keskin, 2007). In this study, we obtained that the frequency characteristics of these fish sounds are different between the two habitats: even if the bandwidth is comparable, the peak of frequency in sandy habitat is higher of about 20 Hz. The MF band (over 0.5 kHz) is not used by other species in sandy habitat, while in Posidonia is totally saturated by the presence of other fish sounds."