Movements of the reef manta ray (Manta alfredi) in the Red Sea using satellite and acoustic telemetry
Braun, Camrin D.
Skomal, Gregory B.
Thorrold, Simon R.
Berumen, Michael L.
MetadataShow full item record
Populations of mobulid rays are declining globally through a combination of directed fisheries and indirect anthropogenic threats. Understanding the movement ecology of these rays remains an important priority for devising appropriate conservation measures throughout the world’s oceans. We sought to determine manta movements across several temporal and spatial scales with a focus on quantifying site fidelity and seasonality in the northern Farasan Banks, Red Sea. We fitted manta rays with acoustic transmitters (n = 9) and popup satellite archival transmitting (PSAT) tags (n = 9), including four with GPS capability (Fastloc), during spring 2011 and 2012. We deployed an extensive array of acoustic receivers (n = 67) to record movements of tagged mantas in the study area. All acoustically tagged individuals travelled frequently among highuse receiver locations and reefs and demonstrated fidelity to specific sites within the array. Estimated and realized satellite tag data indicated regional movements <200 km from the tagging location, largely coastal residency, and high surface occupation. GPStagged individuals regularly moved within the coastal reef matrix up to ~70 km to the south but continued to return to the tagging area near the highoccupancy sites identified in the acoustic array. We also tested the accuracy of several geolocation models to determine the best approach to analyze our lightbased satellite tag data. We documented significant errors in lightbased movement estimates that should be considered when interpreting tracks derived from lightlevel geolocation, especially for animals with restricted movements through a homogenous temperature field. Despite some error in satellite tag positions, combining results from PSAT and acoustic tags in this study yielded a comprehensive representation of manta spatial ecology across several scales, and such approaches will, in the future, inform the design of appropriate management strategies for manta rays in the Red Sea and tropical regions worldwide.
Author Posting. © The Author(s), 2015. This is the author's version of the work. It is posted here by permission of Springer for personal use, not for redistribution. The definitive version was published in Marine Biology 162 (2015): 2351-2362, doi:10.1007/s00227-015-2760-3.
Suggested CitationPreprint: Braun, Camrin D., Skomal, Gregory B., Thorrold, Simon R., Berumen, Michael L., "Movements of the reef manta ray (Manta alfredi) in the Red Sea using satellite and acoustic telemetry", 2015-10-17, https://doi.org/10.1007/s00227-015-2760-3, https://hdl.handle.net/1912/7715
Showing items related by title, author, creator and subject.
Biogeochemical data collected during the Flower Garden Banks Rapid Response Cruise, FGB-RR16, on R/V Manta in the Flower Garden Banks National Marine Sanctuary from July to August 2016 Shamberger, Kathryn E.F. (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: firstname.lastname@example.org, 2020-02-06)This dataset combines the biogeochemical data collected during the Flower Garden Banks Rapid Response Cruise which occurred following the discovery of the localized mortality event. For a complete list of measurements, ...
Braun, Camrin D.; Skomal, Gregory B.; Thorrold, Simon R.; Berumen, Michael L. (Public Library of Science, 2014-02-06)Recent successful efforts to increase protection for manta rays has highlighted the lack of basic ecological information, including vertical and horizontal movement patterns, available for these species. We deployed pop-up ...
Home sweet home: spatiotemporal distribution and site fidelity of the reef manta ray (Mobula alfredi) in Dungonab Bay, Sudan Knochel, Anna M.; Hussey, Nigel E.; Kessel, Steven T.; Braun, Camrin D.; Cochran, Jesse E. M.; Hill, Graham; Klaus, Rebecca; Checkchak, Tarik; Elamin El Hassen, Nasereldin M.; Younnis, Mohammed; Berumen, Michael L. (BMC, 2022-04-28)Background Reef manta ray (Mobula alfredi) populations along the Northeastern African coastline are poorly studied. Identifying critical habitats for this species is essential for future research and conservation efforts. ...