habitat use in chondrichthyans
august 2015 - december 2016
A key part of risk assessment is evaluating the distributional overlap of the fish with the fisheries, where fish distribution is influenced by habitat use. We synthesise published observations of habitat use for different life history stages of chondrichthyans, and hypothesise the associated catch composition in terms of fish sex, size, and maturity. We then search for these catch compositions, and thereby locations, using New Zealand research vessel catch data. Results show that some life history stages and habitats for certain species could be identified, whereas others could not. PUBLISHED.
yukon marine life survey principal investigator
january 2015 - december 2016
A study of the marine life on the Canadian destroyer ‘Yukon‘ since its sinking off the coast of San Diego to act as an artificial reef in 2000, using citizen science surveys and the program Wildbook. ONGOING
population dynamics and rehabilitation of trichechus manatus manatus in sarteneja, belize
A study that utilized public outreach, education, and intercultural collaboration in conjunction with seagrass studies, telemetry studies to determine critical habitats for local/rehabilitated populations of Trichechus manatus manatus. UNPUBLISHED.
continued assessment of the distribution and abundance of callinectes bellicosus and callinectes arcuatus in estero santa rose, sonora, mexico
This continued study promoted sustainable use and conservation of resources by compiling Prescott College’s active database on the Callinectes species together and presenting the work to COBI (Comunidad y Biodiversidad Asociacion Civil) to modify their fishing practices. UNPUBLISHED.
horizontal and vertical movement patterns of white sharks (carcharodon carcharias) in mossel bay, south africa
This preliminary analysis utilized datasets, photo identification, sighting rate, mark-recapture methods and ArcGIS to establish and monitor population status/abundance of great white sharks. UNPUBLISHED.
SHORT TERM SITE-FIDELITY BY IMMATURE lemon sharks (NEGAPRION BREVIROSTRIS ) AT A SUBTROPICAL ISLAND.
This entailed extensive application of an individual-based modeling approach to address the spatial/temporal movement patterns of several species of sharks, mainly lemon sharks, and quantified them to determine critical habitats for different life stages. UNPUBLISHED.