James Watson fra Stockholm Resilience Centre holder foredraget "Flow, Fish and Fishing: Analyzing The Links Between Oceanography, Ecology and Human Behavior in Marine Systems" i Kaffeklubben på DTU Aqua. Gæster er velkomne.
Resumé
The ocean are a key source of nutrition for people around the world and it is important to gauge how much food the oceans can provide us twenty, fifty, and hundred years from now. Any reasonable answer to this question must account for both the impacts of climate change and of human actions such as fishing. Here I will present three studies that look at the linkages between the physics, ecology and economics of marine systems.
First, a spatially explicit global size-based ecosystem model is used to quantify changes in the abundance and distribution of upper-trophic marine organisms as they respond to climate variability and fishing.
Second, an application of the Regional Oceanographic Modeling System (ROMS) to nearshore marine protected area design. Here, Lagrangian particle simulations are used to capture the complex web of spatial connections that define nearshore metapopulations, and I assess their resilience to perturbations using network theory.
Last, the social-foraging tactics that fishermen employ to maximize their harvest — whether they cooperate with one another or not — is investigated using idealized agent-based simulations and a comprehensive spatial fisheries dataset for the US west-coast. These three studies address key dimensions of complexity and adaptation in marine systems.
I end with a discussion of their relevance to our ability to design coastal communities that are resilient to the future changes we are likely to see in our oceans.
Om Kaffeklubben
DTU Aquas såkaldte Kaffeklub arrangerer foredrag om akvatisk forskning som en del af den faglige videndeling på instituttet.
Foredragene holdes både af DTU Aquas egne forskere og forskere fra andre danske eller udenlandske forskningsinstitutioner. Tilhørerne er hovedsageligt ansatte i DTU Aqua, men andre interesserede er også velkomne til at deltage. Tilmelding er ikke nødvendig.
Foredragene er på engelsk og varer 1 time, inklusive spørgsmål og diskussion. De afholdes i uformelle rammer på DTU Aqua i Charlottenlund.