Estuarine Soundscapes: Distinct Acoustic Characteristics of Oyster Reefs Compared to Soft-Bottom Habitats

Description

Detection

Species Identified

Sound Detected

Examination Types

Morphophysiological

Auditory

Visual

Sound Types Detected

Active

Passive Feeding

Other Passive

Additional Details

Full Description

"All reef and near-reef recordings at both sites showed a spectral peak in the 200_300 Hz frequency band, and at West Bay an additional peak was detected in the 450_600 Hz range (Figs. 6 & 7). These peaks were examined in the recordings and identified, based on aural and spectral analysis, as fish calls from the oyster toadfish Opsanus tau (Fine 1978, Fine & Thorson 2008)."

"These fishes are known to produce sounds with dominant frequencies ranging from 100 to 1300 Hz, and to exhibit temporal variation in sound production associated with reproductive patterns (Spra gue et al. 1998, Ramcharitar et al. 2006, Gannon 2007, Fine & Thorson 2008, Luczko vich et al. 2008)."

Observation Environment Quotes

"To compare the acoustic characteristics of oyster reef and off-reef soft-bottom habitats, the ambient soundscape was simultaneously measured at an oyster reserve (‘reef’) and nearby soft-sediment (‘off-reef’) site during monthly sampling events in summer and fall of 2010. This sampling was conducted at 2 locations 100 km apart in Pamlico Sound (Fig. 1: West Bay, Crab Hole), once each month for July to October during the new moon period (±3 d from the astronomical event) to minimize potential lunar effects on monthly comparisons."

Behaviour Description Quotes

"These fishes are known to produce sounds with dominant frequencies ranging from 100 to 1300 Hz, and to exhibit temporal variation in sound production associated with reproductive patterns (Spra gue et al. 1998, Ramcharitar et al. 2006, Gannon 2007, Fine & Thorson 2008, Luczko vich et al. 2008)."

Observation Environments

Wild

Behaviour Descriptions

Reproduction (cited)

Sound Names

Unreported/Undetermined