The Effects of Spatial and Temporal Resolution in Simulating Fish Movement in Individual-Based Models

Autor:	Katherine Shepard Watkins, Kenneth A. Rose
Rok vydání:	2014
Předmět:	biology Movement (music) Computer science Ecology Aquatic Science biology.organism_classification Grid Temporal resolution Anchovy Genetic algorithm Range (statistics) Biological system Kinesis Ecology Evolution Behavior and Systematics Fish movement
Zdroj:	Transactions of the American Fisheries Society. 143:1143-1160
ISSN:	1548-8659 0002-8487
DOI:	10.1080/00028487.2014.911208
Popis:	Many fisheries management decisions require predictions of spatial dynamics, and simulation of realistic movement is critically important for accurately representing population-level dynamics with spatially explicit individual-based models (IBMs). Movement approaches developed to date have been applied across a wide range of spatiotemporal resolutions. We compared four movement approaches or submodels (restricted-area search, kinesis, event based, and run and tumble) using an IBM (roughly based on Bay Anchovy Anchoa mitchilli and Northern Anchovy Engraulis mordax) that simulated growth, mortality, and movement of a cohort on a two-dimensional grid. We evaluated the submodels in 2.7- × 2.7-km environments at five resolutions defined by various cell sizes and time steps. We used a genetic algorithm to calibrate each movement submodel over a 300-generation training phase and then tested the mean movement parameters for a single generation in the training environment and a novel environment. Restricte...
Databáze:	OpenAIRE
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