Grant: Research Tools and Instruments - Category 1 (<$150,000)

We are requesting a field vehicle to continue our longstanding research programs along the coast of Nova Scotia, supported by NSERC Discovery Grants. Scheibling's research examines large-scale changes in the organization and functioning of marine ecosystems that are caused by major shifts in abundance of sea urchins (the dominant grazers) and invasive species. Primary objectives of his research are to 1) investigate biological and environmental factors that govern these shifts, 2) assess the ecological impact of invasive species on ecosystem structure and dynamics, and 3) develop predictive mathematical models that aid in conserving natural resources and native biodiversity. Metaxas' research evaluates factors that regulate population dynamics of bottom-dwelling invertebrates, particularly the supply of planktonic larvae and recruitment of new individuals. Primary objectives of her research are to measure effects of physical and biological habitat characteristics on 1) larval behaviour, 2) spatial and temporal patterns of larval abundance, settlement and recruitment of invasive species, 3) interactions between early life history stages of native and invasive species, and 4) larval dispersal and connections among spatially distinct populations. We request funds to purchase a 4WD truck with the capability to 1) trailer our 7.2 m, 4 t research vessel throughout the year to various field sites separated by 100s of km; 2) launch and retrieve this vessel on steeply graded slipways or rough terrain; 3) provide secure and reliable transport for 5 field personnel, sensitive and expensive oceanographic equipment, and marine organisms. Leasing or renting a vehicle is not possible since diving safety regulations require that we secure scuba tanks (we carry up to 18 tanks at a time) in a metal box mounted to the frame. This requires structural modification of the vehicle and coating the inner floor panel to protect against seawater corrosion. Because our research is field based and involves diving from our boat or from shore, a vehicle is our most fundamental and essential item of research equipment.