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Scuba Science 11 - The Chemical Ecology of Marine Macroalgae...

James B. McClintock1, Charles D. Amsler1, and William J. Baker2 1University of Alabama at Birmingham 2University of South Florida bio Fourteen years ago we presented the first survey of the chemical and ecological bioactivity of Antarctic shallow-water marine invertebrates. In essence, we reported that despite theoretical predictions to the contrary the incidence of chemical defenses among sessile and sluggish Antarctic marine invertebrates were widespread. Since that time we and others have greatly expanded upon the knowledge base of Antarctic marine chemical ecology, both from the perspective of examining new distinct geographic regions, including macroalgae which dominate shallow-water communities along the Antarctic Peninsula, as well as broadening the evaluation of the functional and ecological significance of secondary metabolites. Importantly, many of these studies have been framed within established theoretical constructs, particularly the Optimal Defense Theory (ODT). In the present seminar, we provide an overview of the chemical ecology of macroalgae and benthic marine invertebrates that comprise communities along the Antarctic Peninsula, a region of Antarctica that is in many respects both physically and biologically distinct from the rest of the continent.
Length: 15:07

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