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Environmental Dna (Edna) Surveys For The Smalltooth Sawfish, Pristis Pectinata, In The Chandeleur Islands, Louisiana, Emma M. Humphreys
Environmental Dna (Edna) Surveys For The Smalltooth Sawfish, Pristis Pectinata, In The Chandeleur Islands, Louisiana, Emma M. Humphreys
Honors Theses
The Critically Endangered smalltooth sawfish, Pristis pectinata, was historically found throughout tropical and subtropical coastal waters of the Atlantic Ocean. As a result of mortalities in fisheries and habitat degradation, they became largely restricted to southwest Florida in the U.S. and the Bahamas by the 1980s. However, recent public encounter reports of sawfish in the Florida panhandle, Mississippi, and Louisiana suggest this species is occasionally present in northern Gulf of Mexico waters. Targeted species surveys are needed to improve our understanding of the occurrence and status of this species in these waters. This research used environmental DNA (eDNA) methods …
Assessing The Occurrence Of Trichechus Manatus Latirostris In Mobile Bay, Alabama Using Edna, Elora Pierce
Assessing The Occurrence Of Trichechus Manatus Latirostris In Mobile Bay, Alabama Using Edna, Elora Pierce
Honors Theses
In the past several decades Florida manatees (Trichechus manatus latirostris) have begun to expand their summer range into the northern Gulf of Mexico. Because this is a recent occurrence, not much is known about their habitat use and distribution in this region. Citizen-sourced sighting data suggests that Florida manatees frequent subembayments of Mobile Bay, Alabama, reaching a sighting peak in August. To assess the occurrence of manatees in this area environmental DNA surveys were used from winter (February 19-20) and summer (August 21-22) of 2018. At each of the 21 sites ranging from the mouth of Mobile Bay, …