Diet of the bonnethead (Sphyrna tiburo) along the northern Gulf of Mexico and southeastern Atlantic coast of the United States

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dc.contributor.authorBranham, C. C.
dc.contributor.authorFrazier, Bryan
dc.contributor.authorStrange, J. B.
dc.contributor.authorGalloway, Ashley
dc.contributor.authorAdams, Douglas
dc.contributor.authorDrymon, James Marcus
dc.contributor.authorGrubbs, Ralph
dc.contributor.authorPortnoy, David
dc.contributor.authorwells, robert
dc.contributor.authorSancho, Gorka
dc.creator.orcidhttps://orcid.org/0000-0002-2104-004Xen_US
dc.creator.orcidhttps://orcid.org/0000-0002-8178-1018en_US
dc.creator.orcidhttps://orcid.org/0000-0002-2104-004X
dc.creator.orcidhttps://orcid.org/0000-0002-8178-1018
dc.date.accessioned2022-09-07T21:35:58Z
dc.date.available2022-09-07T21:35:58Z
dc.date.issued2022-07-14
dc.description.abstractDiet of the bonnethead (Sphyrna tiburo) along the northern Gulf of Mexico and southeastern Atlantic coast of the United States. The diet of a potentially omnivorous coastal shark species, the bonnethead (Sphyrna tiburo), was examined in the western Atlantic along the coast of the southeastern United States. A total of 423 stomachs collected from Texas, Alabama, Florida and South Carolina were analyzed using standardized stomach content analysis methods. The diet was dominated by crabs, primarily portunids (Callinectes spp.), across the geographical range analyzed, though the relative importance of crabs varied between regions. Ontogenetic shifts in diet were not observed throughout the region studied. Female and male bonnetheads in South Carolina displayed different diets, particularly in the amount of portunid crabs consumed, with a higher proportion ingested by females. Bonnetheads consumed limited amounts of seagrasses in all regions except in South Carolina, where they occupy habitats without seagrasses in marsh dominated bays and estuaries. This finding indicates that, at least seasonally, seagrasses are not an essential part of the diet of this shark species and may only occur in stomachs as accidental ingestion.en_US
dc.description.sponsorshipFunding for the FSU surveys was from the NOAA SEFSC as part of the GulfSPAN program. This study was funded by Summer Undergraduate Research Funds from the College of Charleston and the School of Science and Mathematics, and by NOAA/NMFS Saltonstall–Kennedy funds (NA16NMF4270225).This is contribution 857 of the South Carolina Marine Resources Division.en_US
dc.identifier.citationBranham, C. C., Frazier, B. S., Strange, J. B., Galloway, A. S., Adams, D. H., Drymon, J. M., Grubbs, R. D., Portnoy, D. S., Wells, R. J. D., Sancho, G., 2022. Diet of the bonnethead (Sphyrna tiburo) along the northern Gulf of Mexico and southeastern Atlantic coast of the United States. Animal Biodiversity and Conservation, 45: 257-267, DOI: https://doi.org/10.32800/abc.2022.45.0257en_US
dc.identifier.doihttps://doi.org/10.32800/abc.2022.45.0257
dc.identifier.urihttps://hdl.handle.net/1969.6/93951
dc.language.isoen_USen_US
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectelasmobranch dieten_US
dc.subjectfeeding ecologyen_US
dc.subjectsphyrna tiburoen_US
dc.subjectcallinectes spp.en_US
dc.subjectseagrassesen_US
dc.titleDiet of the bonnethead (Sphyrna tiburo) along the northern Gulf of Mexico and southeastern Atlantic coast of the United Statesen_US
dc.typeArticleen_US

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