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Small-Scale Vertical Movements of Summer Flounder Relative to Diurnal, Tidal, and Temperature Changes
Henderson, Mark J. Fabrizio, Mary C
Henderson, Mark J.
Fabrizio, Mary C
Abstract
Observation of animal movements on small spatial scales provides a means to understand how large-scale species distributions are established from individual behavioral decisions. Small-scale vertical movements of 14 Summer Flounder Paralichthys dentatus residing in Chesapeake Bay were observed by using depth data collected with archival tags. A generalized linear mixed model was employed to examine the relationship between these vertical movements and environmental covariates such as tidal state, time of day, lunar phase, and temperature. Vertical movements increased with warming water temperatures, and this pattern was most apparent at night and during rising and falling tides. Fish generally exhibited greater vertical movements at night, but the difference between vertical movements in the day and those at night decreased as fish increased in size. Results from this study fill a void in understanding the small-scale movements of Summer Flounder and could be incorporated into individual-based models to investigate how species distributions develop in response to environmental conditions.
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Date
2014-01-01
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Fisheries Science Peer-Reviewed Articles, PARALICHTHYS-DENTATUS; ULTRASONIC TELEMETRY; CHESAPEAKE BAY; BLUEFIN TUNA; DYNAMICS; FISH; CONSUMPTION; METABOLISM; SALINITY; BEHAVIOR
Citation
Mark J. Henderson & Mary C. Fabrizio (2014) Small-Scale Vertical Movements
of Summer Flounder Relative to Diurnal, Tidal, and Temperature Changes, Marine and Coastal
Fisheries, 6:1, 108-118, DOI: 10.1080/19425120.2014.893468
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Virginia Institute of Marine Science
DOI
https://doi.org/10.1080/19425120.2014.893468