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Full-Text Articles in Marine Biology
Investigating Trophic Interactions Of Deep-Sea Animals (Sharks, Teleosts, And Mobile Scavengers) In The Gulf Of Mexico Using Stable Isotope Analysis, Diana A. Churchill
Investigating Trophic Interactions Of Deep-Sea Animals (Sharks, Teleosts, And Mobile Scavengers) In The Gulf Of Mexico Using Stable Isotope Analysis, Diana A. Churchill
FIU Electronic Theses and Dissertations
The deep-sea is the largest habitat on earth, containing over 90 percent of the world’s oceans and home to over 20,000 species. Deep-sea ecosystems are increasingly impacted by human activities including fishing and oil extraction. To understand potential impacts on deep-sea food webs, it is crucial to gather baseline data in these systems. I quantified the trophic interactions of three groups of deep-water animals across a range of trophic levels living in the northern and eastern Gulf of Mexico using stable isotope analysis. First, I propose methods for correcting δ15N values for the presence of nitrogenous metabolic waste …
A Comparative Study Of Concurrent Acoustic And Diver Survey Data, And Fish Community Descriptions Of A High Latitude Coral Reef, Florida, Usa, Adam M. Zenone
A Comparative Study Of Concurrent Acoustic And Diver Survey Data, And Fish Community Descriptions Of A High Latitude Coral Reef, Florida, Usa, Adam M. Zenone
FIU Electronic Theses and Dissertations
Fisheries independent data on relatively unstudied nekton communities were used to explore the efficacy of new tools to be applied in the investigation of shallow coastal coral reef habitats. These data obtained through concurrent diver visual and acoustic surveys provided descriptions of spatial community distribution patterns across seasonal temporal scales in a previously undocumented region. Fish density estimates by both diver and acoustic methodologies showed a general agreement in ability to detect distributional patterns across reef tracts, though magnitude of density estimates were different. Fish communities in southeastern Florida showed significant trends in spatial distribution and seasonal abundance, with higher …