Geoscience Reference
In-Depth Information
Predicted Effects of Behavioural
Movement and Passive Transport on
Individual Growth and Community Size
Structure in Marine Ecosystems
MATTHEW D. CASTLE,
1,2,
*
JULIA L. BLANCHARD
2,3,
{
AND
SIMON JENNINGS
2,4
1
Department of Plant Sciences, University of Cambridge, Cambridge, United Kingdom
2
Centre for Environment, Fisheries and Aquaculture Science (CEFAS), Lowestoft
Laboratory, Lowestoft, Suffolk, United Kingdom
3
Division of Biology, Imperial College London, Silwood Park Campus, Ascot,
Berkshire, United Kingdom
4
School of Environmental Sciences, University of East Anglia, Norwich, United
Kingdom
Abstract . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
42
I.
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
42
II. Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
44
A. Model Development. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
44
B. Growth and Mortality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
45
C. Spatial Flux . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
48
D. Numerical Solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
49
E. Parameter Choices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
50
F. Simulations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
50
G. Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
52
III. Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
53
A. Consequences of Behavioural Movement on Size Spectra . . . . . . .
53
B. Life Histories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
54
C. Parameter Sensitivities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
55
D. Consequences of Adding Abiotic Movement . . . . . . . . . . . . . . . . .
57
E. Effects of Simulated Phytoplankton Bloom . . . . . . . . . . . . . . . . . .
59
F. Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
60
{
Present address: Department of Animal and Plant Sciences, University of Sheffield,
Western Bank, Sheffield, United Kingdom
