Experimental functions for computing daily fish mortality and reproductive energy costs in the FB4 framework. Mortality is decomposed into natural, fishing, and predation components, with optional adjustments for thermal stress and starvation (weight-dependent). Reproduction is modelled as a seasonal spawn-fraction pattern that removes a fraction of body weight (and its associated energy) on each spawning day.
Note: Mortality rate tracking is not yet integrated into the main
run_fb4() loop; spawning energy loss is.
No return value; this page documents the mortality and reproduction functions module. See individual function documentation for return values.
Hanson, P.C., Johnson, T.B., Schindler, D.E. and Kitchell, J.F. (1997). Fish Bioenergetics 3.0. University of Wisconsin Sea Grant Institute, Madison, WI.
Deslauriers, D., Chipps, S.R., Breck, J.E., Rice, J.A. and Madenjian, C.P. (2017). Fish Bioenergetics 4.0: An R-based modeling application. Fisheries, 42(11), 586–596. tools:::Rd_expr_doi("10.1080/03632415.2017.1377558")