Underwater soundscapes are becoming heavily modified by increases in anthropogenic activity, including boating, and pose unique challenges to organisms relying on acoustic communication. Oyster toadfish (Opsanus tau) and striped cusk-eels (Ophidion marginatum) are two species of soniferous fishes found along the Atlantic Seaboard who utilize sound in various intraspecific interactions, including reproduction, and are regularly exposed to anthropogenic noise in New York City waters where boat traffic is abundant. The aim of this study was to establish baseline data on calling activity for long-term monitoring of potential impacts of anthropogenic noise. Focusing specifically on vocalizations corresponding with reproductive behaviors, daily calling patterns were plotted for four urban sites in Brooklyn, NY, and one non-urban site in Long Island, NY. Utilizing passive acoustic monitoring, the authors recorded from late May to late August, and reviewed audio files to trace anthropogenic noise events and advertisement calls from the two species of interest. It was hypothesized that urban sites would experience more anthropogenic noise events due to higher boat traffic, leading to less robust calling patterns in both species. Preliminary analyses revealed spatial differences in species detections across locations, along with the highest prevalence of anthropogenic noise in one of the urban sites.

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Daily Calling Patterns of Oyster Toadfish (Opsanus tau) and Striped Cusk-eels (Ophidion marginatum) in Urban and Non-urban Soundscapes

  • Xylo I. Lazrinth,
  • Rachel D. Rodriguez,
  • Raven Santos,
  • Thomas D. Quigley,
  • Paul M. Forlano

摘要

Underwater soundscapes are becoming heavily modified by increases in anthropogenic activity, including boating, and pose unique challenges to organisms relying on acoustic communication. Oyster toadfish (Opsanus tau) and striped cusk-eels (Ophidion marginatum) are two species of soniferous fishes found along the Atlantic Seaboard who utilize sound in various intraspecific interactions, including reproduction, and are regularly exposed to anthropogenic noise in New York City waters where boat traffic is abundant. The aim of this study was to establish baseline data on calling activity for long-term monitoring of potential impacts of anthropogenic noise. Focusing specifically on vocalizations corresponding with reproductive behaviors, daily calling patterns were plotted for four urban sites in Brooklyn, NY, and one non-urban site in Long Island, NY. Utilizing passive acoustic monitoring, the authors recorded from late May to late August, and reviewed audio files to trace anthropogenic noise events and advertisement calls from the two species of interest. It was hypothesized that urban sites would experience more anthropogenic noise events due to higher boat traffic, leading to less robust calling patterns in both species. Preliminary analyses revealed spatial differences in species detections across locations, along with the highest prevalence of anthropogenic noise in one of the urban sites.