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Full-Text Articles in Marine Biology

Characterizing Elasmobranch Species Diversity, Occurrence And Catches In Small-Scale Fisheries Of The Caribbean, Camila Cáceres Nov 2019

Characterizing Elasmobranch Species Diversity, Occurrence And Catches In Small-Scale Fisheries Of The Caribbean, Camila Cáceres

FIU Electronic Theses and Dissertations

Although 95% of fishers are artisanal, little is known about the magnitude of their catches and impacts on marine ecosystems at a global scale. I used a rapid assessment framework to study elasmobranch occurrence, elasmobranch fisheries, and use in coastal small-scale fisheries in the Caribbean, combining observational data and fisher’s knowledge. A total of 800 Baited Remote Underwater Videos were deployed in addition to 660 interview surveys that were collected in Colombia, Guadeloupe, Martinique, Tobago and the Florida Keys. In Colombia, I compared elasmobranch and teleost species richness and relative abundance within four coral reef habitats, where species targeted by …


Evolutionary Expansions And Neofunctionalization Of Ionotropic Glutamate Receptors In Cnidaria, Ellen G. Dow Jun 2019

Evolutionary Expansions And Neofunctionalization Of Ionotropic Glutamate Receptors In Cnidaria, Ellen G. Dow

FIU Electronic Theses and Dissertations

Reef ecosystems are composed of a variety of organisms, transient species of fish and invertebrates, microscopic bacteria and viruses, and structural organisms that build the living foundation, coral. Sessile cnidarians, corals and anemones, interpret dynamic environments of organisms and abiotic factors through a molecular interface. Recognition of foreign molecules occurs through innate immunity via receptors identifying conserved molecular patterns. Similarly, chemosensory receptors monitor the environment through specific ligands. Chemosensory receptors include ionotropic glutamate receptors (iGluRs), transmembrane ion channels involved in chemical sensing and neural signal transduction. Recently, an iGluR homolog was implicated in cnidarian immunological resistance to recurrent infections of …