Small-Scale Vertical Movements of Summer Flounder Relative to Diurnal, Tidal, and Temperature Changes
Authored by Mark J Henderson, Mary C Fabrizio
Date Published: 2014
DOI: 10.1080/19425120.2014.893468
Sponsors:
United States National Oceanic and Atmospheric Administration (NOAA)
Platforms:
No platforms listed
Model Documentation:
Other Narrative
Flow charts
Mathematical description
Model Code URLs:
Model code not found
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.
Tags
Metabolism
behavior
Dynamics
Consumption
Fish
Paralichthys-dentatus
Ultrasonic telemetry
Chesapeake bay
Bluefin
tuna
Salinity