A 3D individual-based aquatic transport model for the assessment of the potential dispersal of planktonic larvae of an invasive bivalve

A hydrodynamics-based approach to evaluating the risk of waterborne pathogens entering drinking water intakes in a large, stratified lake

“…A 3D Lagrangian, individual-based particle model developed by Hoyer et al (2014) was modified to assess the risk of pathogens entering the drinking water supply from intakes in a lake, hereafter referred to as the pathogen model. These simulations are driven by lake current and turbulence simulations conducted with a 3D hydrodynamic model.…”

“…A Cartesian grid forms the domain for all simulations. A detailed description of the original dispersion model and the links between the different modules and external computations can be found in Hoyer et al (2014).…”

“…The results are based on the particle transport and dispersion model proposed by Hoyer et al (2014), but extended for the case of pathogen transport. A novel technique of back-tracking pathogens trajectories is used which allows for studying non-point contamination at a modest computational cost.…”

Inflow–outflow boundary conditions along arbitrary directions in Cartesian lake models

“…The most widely used grid system in 3D lake modeling is the Cartesian-grid (e.g. Hodges et al, 2000;Rueda et al, 2003;Appt et al, 2004;Laval et al, 2005;Okely and Imberger, 2007;Hoyer et al, 2014). Model coding and grid definition in this grid-system is much simpler than in others.…”

Estimating relative risk of within-lake aquatic plant invasion using combined measures of recreational boater movement and habitat suitability

“…Assessing the risk of establishment requires an understanding of the number of 36 individuals introduced to a particular area over time (i.e., propagule or colonization pressure) and 37 characteristics of the receiving environment (Lockwood, Cassey & Blackburn, 2005 discharge of ballast water has also been shown to increase secondary spread rates within the 52 Great Lakes (Carlton, 1985;Sieracki, Bossenbroek & Faisal, 2013). Finally, advective 53 movement via surface currents have also been found to increase the spread of both fish and 54 invertebrate species within large lakes (Beletsky et al, 2007;Hoyer et al, 2014). While a lot of 55 information exists regarding the spread of species within aquatic systems, the specific 56 relationship between human-mediated and natural dispersal of species is largely unknown.…”