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Marine Biology Commons

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Theses/Dissertations

Nova Southeastern University

Sharks

Oceanography and Atmospheric Sciences and Meteorology

Articles 1 - 2 of 2

Full-Text Articles in Marine Biology

Meta-Analytic Summary Of Parasites And Diseases Of Elasmobranchs Found In Florida Waters, Alexis S. Modzelesky Aug 2018

Meta-Analytic Summary Of Parasites And Diseases Of Elasmobranchs Found In Florida Waters, Alexis S. Modzelesky

HCNSO Student Capstones

Elasmobranchs have conservational and commercial importance. There is a need for a more complete understanding of their health, due to their ability to shape trophic webs and their money-making potential with fishers and ecotourists. Sharks have been known to influence the strength of food webs, including reef ecosystems where many fish species are harvested for food. The investigation of pathogenic agents and diseases in elasmobranchs has been biased to favor those natural enemies that inhabit the digestive system and epidermal surfaces. Certain groups of parasites such as cestodes, copepods, and monogeneans, were most often recorded in this study. The bacterial …


Global Population Structure Of The Dusky Shark And Geographic Sourcing Of Shark Fins From Commercial Markets, Teagen K. Gray Jul 2014

Global Population Structure Of The Dusky Shark And Geographic Sourcing Of Shark Fins From Commercial Markets, Teagen K. Gray

HCNSO Student Theses and Dissertations

The dusky shark, Carcharinus obscurus, is a globally distributed, coastal-pelagic species subject to an apparent high level of exploitation. The International Union for the Conservation of Nature (IUCN) lists this species as “Vulnerable” globally, and “Endangered” within western North Atlantic and Gulf of Mexico waters due to an over 80% decline in this region, with no evidence of population recovery. The extensive exploitation of dusky sharks may partly be attributed to the high market value of its fins, but the contribution of individual dusky shark stocks to the fin markets is unknown. This knowledge would be helpful to detect …