The recent development of the Vemco Positioning System (VPS) allows users to monitor the movement of marine species in finer detail than ever before using Vemco's popular VR2W presence-absence receiver. With a network of VR2W receivers, synchronization transmitters and temperature loggers users can follow the fine spatial and temporal scale movements of tagged individuals. Data exported from the VPS can be effectively visualized in Eonfusion using pre-constructed data flows. Estimates of positional error calculated by the VPS can be easily visualized inside Eonfusion to allow users to quickly determine the extent of noise and error within complex data sets. With the integration of bathymetry, habitat and environmental parameters users can produce a truly immersive environment in which to explore their data.
More information on the details of the VPS and Vemco products can be obtained from the Vemco website.
Fig.1: 4D visualization of fish movement data constructed using a VPS in a freshwater lake (tracks coloured by ID). Positional estimates (spheres) are sized on the estimate of positional uncertainty calculated by the VPS. The water column thermal range (coloured cylinder) was constructed from data collected by Vemco Miniloggers placed at regular intervals in the water column.
Acknowledgements: Dr Dale Webber, Vemco (a division of AMIRIX Systems Inc.)