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Marine & Environmental Sciences Faculty Articles

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Determining The Extent And Characterizing Coral Reef Habitats Of The Northern Latitudes Of The Florida Reef Tract (Martin County), Brian K. Walker, David S. Gilliam Nov 2013

Determining The Extent And Characterizing Coral Reef Habitats Of The Northern Latitudes Of The Florida Reef Tract (Martin County), Brian K. Walker, David S. Gilliam

Marine & Environmental Sciences Faculty Articles

Climate change has recently been implicated in poleward shifts of many tropical species including corals; thus attention focused on higher-latitude coral communities is warranted to investigate possible range expansions and ecosystem shifts due to global warming. As the northern extension of the Florida Reef Tract (FRT), the third-largest barrier reef ecosystem in the world, southeast Florida (25–27° N latitude) is a prime region to study such effects. Most of the shallow-water FRT benthic habitats have been mapped, however minimal data and limited knowledge exist about the coral reef communities of its northernmost reaches off Martin County. First benthic habitat mapping …


Modeling The Potential Spread Of The Recently Identified Non-Native Panther Grouper (Chromileptes Altivelis) In The Atlantic Using A Cellular Automaton Approach, Matthew W. Johnston, Samuel J. Purkis Aug 2013

Modeling The Potential Spread Of The Recently Identified Non-Native Panther Grouper (Chromileptes Altivelis) In The Atlantic Using A Cellular Automaton Approach, Matthew W. Johnston, Samuel J. Purkis

Marine & Environmental Sciences Faculty Articles

The Indo-pacific panther grouper (Chromileptes altiveli) is a predatory fish species and popular imported aquarium fish in the United States which has been recently documented residing in western Atlantic waters. To date, the most successful marine invasive species in the Atlantic is the lionfish (Pterois volitans/miles), which, as for the panther grouper, is assumed to have been introduced to the wild through aquarium releases. However, unlike lionfish, the panther grouper is not yet thought to have an established breeding population in the Atlantic. Using a proven modeling technique developed to track the lionfish invasion, presented is the first …


Spatial Analyses Of Benthic Habitats To Define Coral Reef Ecosystem Regions And Potential Biogeographic Boundaries Along A Latitudinal Gradient, Brian K. Walker Jan 2012

Spatial Analyses Of Benthic Habitats To Define Coral Reef Ecosystem Regions And Potential Biogeographic Boundaries Along A Latitudinal Gradient, Brian K. Walker

Marine & Environmental Sciences Faculty Articles

Marine organism diversity typically attenuates latitudinally from tropical to colder climate regimes. Since the distribution of many marine species relates to certain habitats and depth regimes, mapping data provide valuable information in the absence of detailed ecological data that can be used to identify and spatially quantify smaller scale (10 s km) coral reef ecosystem regions and potential physical biogeographic barriers. This study focused on the southeast Florida coast due to a recognized, but understudied, tropical to subtropical biogeographic gradient. GIS spatial analyses were conducted on recent, accurate, shallow-water (0–30 m) benthic habitat maps to identify and quantify specific regions …