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Full-Text Articles in Physical Sciences and Mathematics
Effects Of Trace Metal Limitation On Oxidative Stress In Zooxanthellae And Its Role In Coral Bleaching, Mark Wells, J. Malcolm Shick, Charles G. Trick, Walter Dunlap, Paul Long
Effects Of Trace Metal Limitation On Oxidative Stress In Zooxanthellae And Its Role In Coral Bleaching, Mark Wells, J. Malcolm Shick, Charles G. Trick, Walter Dunlap, Paul Long
University of Maine Office of Research Administration: Grant Reports
Coral bleaching has increased dramatically in frequency, severity, and geographic extent since the 1980s and this trend is anticipated to continue, causing major environmental and economic impacts in tropical regions. This bleaching - the loss by corals of their photosynthetic endosymbiotic dinoflagellates (zooxanthellae; Symbiodinium spp.) - involves increased oxidative stress arising from the combined effects of elevated temperature at high light intensities. Although the production of reactive oxygen species (ROS) in corals and phytoplankton is routine during daylight hours, the failure of antioxidant defenses in zooxanthellae becomes catastrophic under comparatively small changes in environmental temperature, because reef corals live close …
Rapid: A Unique Cruise Opportunity To Test The Effect Of Trace Metal Limitation On Oxidative Stress And Coral Bleaching, Mark L. Wells, J. Malcolm Shick
Rapid: A Unique Cruise Opportunity To Test The Effect Of Trace Metal Limitation On Oxidative Stress And Coral Bleaching, Mark L. Wells, J. Malcolm Shick
University of Maine Office of Research Administration: Grant Reports
Intellectual Merit. Coral bleaching has increased dramatically in frequency, severity, and geographic extent since the 1980's and this trend is anticipated to continue, causing major environmental and economic impacts in tropical regions. This bleaching, or loss by corals of their photosynthetic endosymbiotic dinoflagellates (zooxanthellae; Symbiodinium spp.), appears to result from increased oxidative stress arising from the combined effects of elevated temperature at high light intensities. However, the mechanisms underlying this failure are not understood. The premise of the PIs' current project entitled "Effects of Trace Metal Limitation on Oxidative Stress in Zooxanthellae and Its Role in Coral Bleaching" (OCE - …
Collaborative Research: Centers For Ocean Science Education Excellence - Oceans In The Earth-Sun System, Annette Decharon
Collaborative Research: Centers For Ocean Science Education Excellence - Oceans In The Earth-Sun System, Annette Decharon
University of Maine Office of Research Administration: Grant Reports
This award establishes a new Center for Ocean Science Education Excellence (COSEE) via awards to the Bigelow Laboratory for Ocean Sciences (0528706), the University of Maine (0528702), and the University of New Hampshire (0528686). The main goals of this thematic Center are to broaden understanding of the oceans in the context of the earth and solar systems and to help the COSEE network reach rural and inland audiences. The PIs will pioneer a system of interfaces, tools, and resources to reach underserved and underrepresented groups, and to bring ocean sciences to inland audiences by presenting it in the context of …
Interannual Variability In American Lobster Settlement: Correlations With Sea Surface Temperature, Wind Stress And River Discharge, Mahima Jaini
Electronic Theses and Dissertations
Recruitment to benthic marine populations is fundamentally a biophysical problem. The American Lobster Settlement Index is an annual diver-based survey of the young-of-year American lobsters (Homarus americanus) found in inshore nurseries in New England, USA and Atlantic Canada at the end of the postlarval settlement season. The considerable interannual variability in the settlement index suggests that environmental factors play an important role in regulating planktonic larval supply and transport. In this study, I focused on the longest settlement time series from three oceanographically contrasting regions: Midcoast Maine, coastal Rhode Island and the lower Bay of Fundy. Sampling in these regions …
Collaborative Research: Interannual Variability Of Coastal Phytoplankton Blooms In The Gulf Of Maine And Their Relationships To Local And Remote Forcings, David W. Townsend
Collaborative Research: Interannual Variability Of Coastal Phytoplankton Blooms In The Gulf Of Maine And Their Relationships To Local And Remote Forcings, David W. Townsend
University of Maine Office of Research Administration: Grant Reports
The aim of this proposal is to explore the interaction of remote climate based forcing with local forcing to impact phytoplankton blooms in coastal and shelf regions with a coupled biological-physical model. Phytoplankton bloom dynamics are a classic example of biological-physical interactions in the ocean (Gran and Braarud, 1935; Sverdrup, 1953). Yet it is still a challenge to identify the dominant processes controlling the interannual variability of phytoplankton blooms in coastal and shelf seas where multiple-scale biological and physical processes interact. The unstructured-grid, finite-volume, coastal ocean model (FVCOM, built within the GLOBEC Georges Bank Program) bridges the multi-scale physical processes …