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Evaluating the use of baited remote underwater video (BRUV) in assessing shark and fish populations in a low visibility estuarine system, the Tolomato River, FL, USA
No full textRecently, there has been increasing use of baited remote underwater video (BRUV) surveys for assessing shark and fish populations in marine ecosystems. This approach can be useful because it may provide a non-destructive, non-extractive, and cost-effective alternative to traditional fishing-based methods. However, to date, most studies using BRUVs have focused on their use in high-visibility ecosystems, such as tropical reefs. Furthermore, few studies have compared results from BRUV surveys with those obtained using traditional methods to evaluate the efficacy of this approach. Therefore, the goal of this study was to evaluate the effectiveness of using BRUV surveys to assess shark and fish populations in low-visibility ecosystems. This goal was addressed by conducting BRUVs and bottom longline surveys in the Tolomato River, a northeast Florida estuary that has been shown to serve as a communal nursery habitat for juveniles from multiple coastal shark species including the sandbar (Carcharhinus plumbeus) and the scalloped hammerhead (Sphyrna lewini). Surveys were compared using metrics of both abundance and diversity. Results of this study found that BRUV and longline surveys sampled different portions of the community and BRUV surveys were able to detect a greater number of species, including some that are not sampled using a longline survey in this system. However, longline surveys produced greater sample sizes, greater abundance estimates, and provided more information on shark populations, compared to BRUV surveys. While BRUV surveys did not provide similar data to longline surveys, especially regarding abundance estimates, they may work as a useful tool to provide insight into community ecology. The addition of a clear liquid optical chamber (CLOC) to the BRUV design was also briefly investigated, suggesting that clarity can potentially be improved in low-visibility estuarine systems
Instruction Request Podcast, Chemistry resources in the library, Episode 4
Get PDFIn episode 4 of the Instruction Request Podcast, Beryl White-Bing, the Virtual Learning Librarian, and Lauren Odom, the Instruction Librarian, review the Research Question of the Day, and cover Chemistry databases and VR resources. Lauren addresses questions from the LibChat regarding RefWorks and shows a video of how to delete duplicate records. Beryl and Lauren talk about how to use RefWorks and encourage users to contact Beryl for RefWorks tips.
Lauren reviews the Chemistry database Sci-Finder n and features brief tutorial videos for how to access the database and how to navigate the interface. Beryl discusses the Virtual Reality experience Nanome VR, a chemistry VR, that allows for virtual group collaboration. Users can build chemical structures and a variety of other things in Nanome. The VLC currently holds a license for the free version of the software, but we encourage students and faculty to use the experience for a license that allows for more features.https://digitalcommons.unf.edu/instructionpodcast/1003/thumbnail.jp
Dr. Afesa Adams
No full textPhotograph: Dean Afesa M. Adams, new Arts & Sciences dean. Image from Spinnaker Media. Circa 1987https://digitalcommons.unf.edu/spinnaker-images/1007/thumbnail.jp
Unidentified Person Sitting at Computer
No full textPhotograph: Unidentified man sitting at computer. Minority & International Students sign in background. Black History Events flyer hanging on wall. Image from Spinnaker Media. Undated.https://digitalcommons.unf.edu/spinnaker-images/1008/thumbnail.jp
Dr. Mark Workman
No full textPhotograph: Dr. Mark Workman standing holding a book. Image from Spinnaker Media. Undated.https://digitalcommons.unf.edu/spinnaker-images/1009/thumbnail.jp