State-space models to infer movements and behavior of fish detected in a spatial array of acoustic receivers

Canadian Journal of Fisheries and Aquatic Sciences
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Abstract

We developed state-space models for inferring movements and behaviors of fish implanted with acoustic transmitters and detected within a spatial array of stationary acoustic receivers. In these models fish movements and behavior switching are specified using a hidden Markov model of the changes in an individual's latent activity center. The observed number of detections at each acoustic receiver is modeled as a function of the distance between the receiver and a fish's activity center. To illustrate these models, we analyzed the detections of individual Gulf sturgeon that moved within a spatial array of acoustic receivers placed in the Suwannee River, Florida. Our models of these detections provided estimates of the locations of individual sturgeon and the periods when individuals switched between spawning and resting behaviors. We anticipate that these models will be used to analyze acoustic surveys of other species and to help design new surveys.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title State-space models to infer movements and behavior of fish detected in a spatial array of acoustic receivers
Series title Canadian Journal of Fisheries and Aquatic Sciences
DOI 10.1139/cjfas-2018-0067
Volume 76
Issue 4
Year Published 2019
Language English
Publisher Canadian Science Publishing
Contributing office(s) Wetland and Aquatic Research Center
Description 8 p.
First page 543
Last page 550