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Full-Text Articles in Life Sciences
Ecophysiology Of Lionfish Metabolic And Visual Systems: Are There Physiological Limits To Inshore Invasion?, Aaron Hasenei
Ecophysiology Of Lionfish Metabolic And Visual Systems: Are There Physiological Limits To Inshore Invasion?, Aaron Hasenei
HCNSO Student Theses and Dissertations
Lionfish (Pterois spp.), an invasive species native to the Indo-Pacific, have permanently established themselves throughout the greater Caribbean, Gulf of Mexico, and regions of the Western Atlantic ranging from as far north as North Carolina to central Brazil. As their fundamental range expands, lionfish threaten to migrate into estuarine environments as they have been found to tolerate low salinities and an eclectic range of temperatures. The physiological capacity of invasion was assessed by quantifying the visual ecology of lionfish utilizing corneal electroretinography (ERG) as well as their metabolic scope and hypoxia tolerances under various temperature-oxygen-regimes utilizing intermittent-flow respirometry. Seasonal …
Diet Of The Invasive Lionfish Pterois Sp. In Broward County, Florida, Sarah Ann Jasper, J. D. Thomas, David Kerstetter
Diet Of The Invasive Lionfish Pterois Sp. In Broward County, Florida, Sarah Ann Jasper, J. D. Thomas, David Kerstetter
Marine & Environmental Sciences Faculty Articles
The geographic range of invasive lionfish Pterois sp. currently extends throughout the Greater Caribbean in the western North Atlantic, prompting concerns about the impacts of its predation on local ecosystems. We focused on dietary habits of lionfish in Broward County, Florida, where there is only limited, anecdotal information on the species’ prey selection. Diet was determined using percent number, percent occurrence and percent weight, as well as the composite index of relative abundance (%IRI). A high percent teleost diet was documented during the third quarter (July-September) and a high crustacean diet in the fourth quarter (October-December), but seasonal effects by …