Florida Southern College Digital Repository

Age and Growth of Rhizoprionodon terraenovae and the Benefits of Age and Growth Studies on Conservation Policies

Show simple item record

dc.contributor.author Karr, Jenna
dc.date.accessioned 2017-05-29T20:38:48Z
dc.date.available 2017-05-29T20:38:48Z
dc.date.issued 2017-05
dc.identifier.uri http://hdl.handle.net/11416/316
dc.description Honors Thesis Spring 2017 en_US
dc.description.abstract Age and growth estimates for shark species may be determined through examination of annuli seen in the vertebral cartilage. Age estimates were made for seven male Atlantic sharpnose sharks (Rhizoprionodon terraenovae) caught in 2014 that ranged in length from 58.5 - 90.8 TL. Vertebrae were analyzed for clear band patterns in order to estimate shark ages and compared to ages calculated using the von Bertalanffy growth equation. A comparison of the calculated and observed age found that there was no significant relationship between the two. A better understanding of the rate of growth within cartilaginous fish species such as Rhizoprionodon terraenovae allow for an increased understanding on the potential impacts on population dynamics. As many shark species have an overall slow growth pattern, populations may be unable to recover from detrimental impacts such as overfishing or coastal development. Continuing age and growth studies with shark species will aid in conservation efforts by supporting shark fishing guidelines that would allow healthy population numbers to be maintained based on the growth rate of individuals. en_US
dc.publisher Florida Southern College en_US
dc.subject Rhizoprionodon terraenovae en_US
dc.subject Conservation policies en_US
dc.title Age and Growth of Rhizoprionodon terraenovae and the Benefits of Age and Growth Studies on Conservation Policies en_US
dc.type Thesis en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search


Browse

My Account