Monday January 23, 2023
PhysOrg —
Imagine that in the future, we know exactly how many fish we can catch without negatively impacting either the stock of predatory fish or their prey—and that we can actually regulate the amount of fish if an excess of, say, cod suddenly occurs in an ecosystem.
All this may be possible thanks to a very special model of gastric evacuation developed and described by DTU Senior Researcher Aqua Niels Gerner Andersen in his doctoral dissertation, which he recently defended.
“The model can tell us how much of their prey that predatory fish eat, which enables us to much better calculate the consequences of specific fisheries management on the species composition of our fish stocks—and potentially on entire ecosystems through the derived effects on the food chain,” explains Niels Gerner Andersen.