Hydrophone placement yields high variability in detection of Epinephelus striatus calls at a spawning site.

ABSTRACT: Passive acoustic monitoring is a cost-effective, minimally invasive technology commonly used to study behavior and population dynamics of soniferous fish species. To understand the strengths and limitations of acoustic monitoring for this purpose at fish spawning aggregations (FSA) requires an assessment of the variability in aggregation-associated sounds (AAS) as a function of time, space, and proximity for spawning fishes of interest. Here, we evaluate temporal and spatial trends in the detection of AAS by Nassau Grouper (Epinephelus striatus) using an array of six hydrophones deployed across a large Nassau Grouper FSA at Little Cayman, Cayman Islands. We collected continuous data for nine days during a winter spawning season and subsequently used an automatic classifier to extract the e

SUBMITTER: Van Horn CJ 

PROVIDER: S-EPMC12326518 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature