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Marine & Environmental Sciences Faculty Proceedings, Presentations, Speeches, Lectures
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Full-Text Articles in Life Sciences
Multiple Spatial Scale Assessment Of Coral Reef And Hard-Bottom Community Structure In The Florida Keys National Marine Sanctuary, Steven Miller, Dione W. Swanson, Mark Chiappone
Multiple Spatial Scale Assessment Of Coral Reef And Hard-Bottom Community Structure In The Florida Keys National Marine Sanctuary, Steven Miller, Dione W. Swanson, Mark Chiappone
Marine & Environmental Sciences Faculty Proceedings, Presentations, Speeches, Lectures
The zoning plan for the Florida Keys National Marine Sanctuary (FKNMS) established 23 relatively small no-fishing zones distributed mostly along the offshore reef tract in 1997. In 1999, a two-stage, stratified random sampling design based on the proportion of coral reef and hard-bottom types within the FKNMS was conducted. Our study focused on differences in coverage, density, and condition of benthic organisms with respect to habitat type, regional variations, and differences between no-fishing zones and reference sites at 80 locations spanning 200 km. Most variables exhibited significant spatial differences by habitat type or between individual no-fishing zones and reference sites …
Success And Growth Of Corals Transplanted To Cement Armor Mat Tiles In Southeast Florida: Implications For Reef Restoration, S. L. Thornton, Richard E. Dodge, David S. Gilliam, R. Devictor, P. Cooke
Success And Growth Of Corals Transplanted To Cement Armor Mat Tiles In Southeast Florida: Implications For Reef Restoration, S. L. Thornton, Richard E. Dodge, David S. Gilliam, R. Devictor, P. Cooke
Marine & Environmental Sciences Faculty Proceedings, Presentations, Speeches, Lectures
In 1997, 271 scleractinian corals growing on a sewer outfall pipe were used in a transplantation study offshore from North Dade County, Florida, USA. Corals were removed from the outfall pipe and transplanted onto concrete armor mat tiles used to cover the pipe. Success (number of corals still attached and alive), mortality (number of dead corals), and growth rates of the transplants were assessed between December 1997 and December 1999. Colony surface area and radius length were measured on scanned photographs to estimate horizontal growth rate. After two years post-transplantation, success rate and overall mortality were 87% and 7.8% respectively. …
Skeletal Architecture And Density Banding In Diploria Strigosa By X-Ray Computed Tomography, Kevin P. Helmle, Richard E. Dodge, R. A. Ketcham
Skeletal Architecture And Density Banding In Diploria Strigosa By X-Ray Computed Tomography, Kevin P. Helmle, Richard E. Dodge, R. A. Ketcham
Marine & Environmental Sciences Faculty Proceedings, Presentations, Speeches, Lectures
Density bands in corals have long been considered a valuable tool for reconstructing past environmental and climatic conditions. X-radiographs reveal density banding within a skeletal slab, but provide little information about the skeletal variability causing banding. The skeletal architecture of Diploria strigosa was analyzed by X-radiography, X-ray computed tomography, and image analysis to identify the specific skeletal elements responsible for density banding. Threedimensional skeletal reconstructions, density-band reconstructions, and skeletal animations were created to assess the apparent changes in skeletal structure associated with density banding. Measurements were made of the dissepiments, thecae, septa, and columellae to determine how element size related …
Reefs And Coral Carpets In The Miocene Paratethys (Badenian, Leitha Limestone, Austria), Bernhard Riegl, W. E. Piller
Reefs And Coral Carpets In The Miocene Paratethys (Badenian, Leitha Limestone, Austria), Bernhard Riegl, W. E. Piller
Marine & Environmental Sciences Faculty Proceedings, Presentations, Speeches, Lectures
Biohermal (reefs) and biostromal (coral carpets) facies were studied in the Austrian Middle Miocene Leitha Limestone. In the Vienna Basin ("Fenk quarry") non-framebuilding and framebuilding biostromal coral communities were found. In the Styrian Basin, well developed patch reefs were observed besides coral carpets. In the Fenk quarry, 2 coral carpet types, four non-framework coral communities, and one bivalve/coral community were found. In "Retznei quarry" (Styrian Basin) patch reefs, basal corallinacean calcarenites were followed by a Ponies layer capped by marl, and the main reef-building higher diversity phase dominated by faviids ( Montastraea, Tarbellastraea). In the "Tittenbacher quarry" no internal …