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Full-Text Articles in Marine Biology
An Evaluation Of The Along Track Reef Imaging System (Atris) For Efficient Reef Monitoring And Rapid Groundtruthing Of Eaarl Lidar, Nicole O. Caesar
An Evaluation Of The Along Track Reef Imaging System (Atris) For Efficient Reef Monitoring And Rapid Groundtruthing Of Eaarl Lidar, Nicole O. Caesar
USF Tampa Graduate Theses and Dissertations
The Along-Track Reef-Imaging System (ATRIS) is a vessel-mounted, digital camera, depth sounder and Global Positioning System (GPS) package that facilitates the rapid capture of underwater images in shallow-water benthic environments. This technology has the potential to collect ecologically significant data, particularly in benthic habitats less than 10 m in depth, with better location referencing and in less time than is required for surveys carried out by Scuba divers. In October 2004, ATRIS was tested coincidently with SCUBA-assisted video along transects on five patch reefs in Biscayne National Park. Images from both data sets were subsampled, viewed, and benthic cover under …
Assessment Of Image Analysis As A Measure Of Scleractinian Coral Growth, Steven K. Gustafson
Assessment Of Image Analysis As A Measure Of Scleractinian Coral Growth, Steven K. Gustafson
USF Tampa Graduate Theses and Dissertations
Image analysis was used to measure basal areas of selected colonies of Montastraea annularis and Porites astreoides, following the colonies over a three-year period from 2002 to 2004. Existing digital images of permanently-marked quadrats in the Caye Caulker Marine Reserve, Belize, were selected based on image quality and availability of images of selected quadrats for all three years. Annual growth rates were calculated from the basal-area measurements. Mean growth rates (radial skeletal extension) for M. annularis and P. astreoides were 0.02 cm yr-1 and -0.20 cm yr-1, respectively. Basal area measurements demonstrated a large degree of variability. Increases were approximately …