Multi-method approach identifies a South African estuary as an important elasmobranch habitat and potential nursery ground

References

• Adams JB. 2016. Distribution and status of Zostera capensis in South African estuaries – a review. South African Journal of Botany 107: 63–73. doi: 10.1016/j.sajb.2016.07.007
   Web of Science ®Google Scholar
• Bassos-Hull K, Wilkinson KA, Hull PT, Dougherty DA, Omori KL, Ailloud LE et al. 2014. Life history and seasonal occurrence of the spotted eagle ray, Aetobatus narinari, in the eastern Gulf of Mexico. Environmental Biology of Fishes 97: 1039–1056. doi: 10.1007/s10641-014-0294-z
   Web of Science ®Google Scholar
• Beck MW, Heck KL, Able KW, Childers DL, Eggleston DB, Gillanders BM et al. 2001. The identification, conservation, and management of estuarine and marine nurseries for fish and invertebrates. Bioscience 51: 633–641. doi: 10.1641/0006-3568(2001)051[0633:TICAMO]2.0.CO;2
   Web of Science ®Google Scholar
• Benavides MT, Fodrie FJ, Johnston DW. 2020. Shark detection probability from aerial drone surveys within a temperate estuary. Journal of Unmanned Vehicle Systems 8: 44–56. doi: 10.1139/juvs-2019-0002
   Web of Science ®Google Scholar
• Carrier JC, Heithaus MR, Simpfendorfer CA. 2018. Shark research: emerging technologies and applications for the field and laboratory. Boca Raton, Florida: CRC Press.
   Google Scholar
• Cortelezzi P, Paulet TG, Olbers J, Harris J, Bernard A. 2022. Conservation benefits of a marine protected area on South African chondrichthyans. Journal of Environmental Management 319: article 115691. doi: 10.1016/j.jenvman.2022.115691
   PubMed Web of Science ®Google Scholar
• Daly R, Le Noury P, Hempson TN, Ziembicki M, Olbers JM, Brokensha GM, Mann BQ. 2021. Bull shark Carcharhinus leucas recruitment into the St Lucia Estuary, South Africa, after prolonged mouth closure, and the first observation of a neonate bull shark preyed on by a Nile crocodile Crocodylus niloticus. African Journal of Marine Science 43: 417–421. doi: 10.2989/1814232X.2021.1964599
   Web of Science ®Google Scholar
• Davy LE, Simpfendorfer CA, Heupel MR. 2015. Movement patterns and habitat use of juvenile mangrove whiprays (Himantura granulata). Marine and Freshwater Research 66: article 481. doi: 10.1071/MF14028
   Web of Science ®Google Scholar
• de Villiers NM, Harasti D, Hodgson AN, Claassens L. 2021. A comparison of the fauna in eelgrass and erosion control structures in a warm-temperate southern African estuary. Regional Studies in Marine Science 44: article 101757. doi: 10.1016/j.rsma.2021.101757
   Web of Science ®Google Scholar
• Dulvy NK, Pacoureau N, Rigby CL, Pollom RA, Jabado RW, Ebert DA et al. 2021. Overfishing drives over one-third of all sharks and rays toward a global extinction crisis. Current Biology 31: 4773–4787. doi: 10.1016/j.cub.2021.08.062
   PubMed Web of Science ®Google Scholar
• Elston C, Cowley PD, von Brandis RG, Lea J. 2021. Residency and habitat use patterns by sympatric stingrays at a remote atoll in the western Indian Ocean. Marine Ecology Progress Series 662: 97–114. doi: 10.3354/meps13632
   Web of Science ®Google Scholar
• Elston C, Murray TS, Parkinson MC, Filmalter JD, Cowley PD. 2023. Female diamond rays Gymnura natalensis and bull rays Aetomylaeus bovinus display seasonal philopatry to South African estuaries. Estuaries and Coasts 46: 1880–1894. doi: 10.1007/s12237-023-01239-1
   Web of Science ®Google Scholar
• Espino F, González JA, Bosch NE, Otero-Ferrer FJ, Haroun R, Tuya F. 2022. Distribution and population structure of the smooth-hound shark, Mustelus mustelus (Linnaeus, 1758), across an oceanic archipelago: combining several data sources to promote conservation. Ecology and Evolution 12: e9098. doi: 10.1002/ece3.9098
   PubMed Web of Science ®Google Scholar
• Farrugia TJ, Espinoza M, Lowe CG. 2011. Abundance, habitat use and movement patterns of the shovelnose guitarfish (Rhinobatos productus) in a restored southern California estuary. Marine and Freshwater Research 62: 648–657. doi: 10.1071/MF10173
   Web of Science ®Google Scholar
• Gausmann P. 2021. Synopsis of global fresh and brackish water occurrences of the bull shark Carcharhinus leucas Valenciennes, 1839 (Pisces: Carcharhinidae), with comments on distribution and habitat use. Integrative Systematics: Stuttgart Contributions to Natural History 4: 55–213.
   Google Scholar
• Gonçalves Silva F, Vianna M. 2018. Diet and reproductive aspects of the endangered butterfly ray Gymnura altavela raising the discussion of a possible nursery area in a highly impacted environment. Brazilian Journal of Oceanography 66: 315–324. doi: 10.1590/s1679-8759201801906603
   Web of Science ®Google Scholar
• Goodman MA, Conn PB, Fitzpatrick E. 2011. Seasonal occurrence of cownose rays (Rhinoptera bonasus) in North Carolina’s estuarine and coastal waters. Estuaries and Coasts 34: 640–651. doi: 10.1007/s12237-010-9355-5
   Web of Science ®Google Scholar
• Grancagnolo D, Arculeo M. 2021. Summer aggregation of common eagle ray, Myliobatis aquila (Chondrichthyes: Myliobatidae), in the Marine Protected Area of the Egadi Islands (southwestern Tyrrhenian Sea). Biogeographia 36: 1–5.
   Google Scholar
• Hamilton B, Peterson C, Dawdy A, Grubbs R. 2022. Environmental correlates of elasmobranch and large fish distribution in a river-dominated estuary. Marine Ecology Progress Series 688: 83–98. doi: 10.3354/meps14019
   Web of Science ®Google Scholar
• Harrison TD. 2003. Biogeography and community structure of fishes in South African estuaries. PhD thesis, Rhodes University, South Africa.
   Google Scholar
• Heupel MR, Simpfendorfer CA. 2011. Estuarine nursery areas provide a low-mortality environment for young bull sharks Carcharhinus leucas. Marine Ecology Progress Series 433: 237–244. doi: 10.3354/meps09191
   Web of Science ®Google Scholar
• Heupel MR, Carlson J, Simpfendorfer CA. 2007. Shark nursery areas: concepts, definition, characterization and assumptions. Marine Ecology Progress Series 337: 287–297. doi: 10.3354/meps337287
   Web of Science ®Google Scholar
• Heupel MR, Kanno S, Barbosa Martins AP, Simpfendorfer CA. 2019. Advances in understanding the roles and benefits of nursery areas for elasmobranch populations. Marine and Freshwater Research 70: 897–907. doi: 10.1071/MF18081
   Web of Science ®Google Scholar
• Jabado RW, Chartrain E, Cliff G, Da Silva C, Derrick D, Dia M et al. 2021a. Myliobatis aquila. The IUCN Red List of Threatened Species 2021: e.T161569A124508353.
   Google Scholar
• Jabado RW, Chartrain E, Cliff G, Da Silva C, Derrick D, Dia M et al. 2021b. Aetomylaeus bovinus. The IUCN Red List of Threatened Species 2021: e.T161569A124508353.
   Google Scholar
• Jabado RW, Chartrain E, Cliff G, Da Silva C, De Bruyne G, Derrick D et al. 2021c. Mustelus mustelus. The IUCN Red List of Threatened Species 2021: e.T39358A124405881.
   Google Scholar
• Kohler NE, Turner PA. 2001. Shark tagging: a review of conventional methods and studies. Environmental Biology of Fishes 60: 191–224. doi: 10.1023/A:1007679303082
   Web of Science ®Google Scholar
• Martins APB, Heupel MR, Chin A, Simpfendorfer CA. 2018. Batoid nurseries: definition, use and importance. Marine Ecology Progress Series 595: 253–267. doi: 10.3354/meps12545
   Web of Science ®Google Scholar
• McCord ME, Lamberth SJ. 2009. Catching and tracking the world’s largest Zambezi (bull) shark Carcharhinus leucas in the Breede Estuary, South Africa: the first 43 hours. African Journal of Marine Science 31: 107–111. doi: 10.2989/AJMS.2009.31.1.11.782
   Web of Science ®Google Scholar
• McInturf AGA, Bowman J, Schulte JM, Newton KC, Vigil B, Honig M et al. 2023. A unified paradigm for defining elasmobranch aggregations. ICES Journal of Marine Science 80: 1551–1566. doi: 10.1093/icesjms/fsad099
   Web of Science ®Google Scholar
• McIvor AJ, Spaet JLY, Williams CT, Berumen ML. 2022. Unoccupied aerial video (UAV) surveys as alternatives to BRUV surveys for monitoring elasmobranch species in coastal waters. ICES Journal of Marine Science 79: 1604–1613. doi: 10.1093/icesjms/fsac098
   Web of Science ®Google Scholar
• Medeiros AM, Luiz OJ, Domit C. 2015. Occurrence and use of an estuarine habitat by giant manta ray Manta birostris. Journal of Fish Biology 86: 1830–1838. doi: 10.1111/jfb.12667
   PubMed Web of Science ®Google Scholar
• Murray TS, Elston C, Parkinson MC, Filmalter JD, Cowley PD. 2022. A decade of South Africa’s Acoustic Tracking Array Platform: an example of a successful ocean stewardship programme. Frontiers in Marine Science 9: article 886554. doi: 10.3389/fmars.2022.886554
   PubMed Web of Science ®Google Scholar
• Ogburn MB, Bangley CW, Aguilar R, Fisher RA, Curran MC, Webb SF, Hines AH. 2018. Migratory connectivity and philopatry of cownose rays Rhinoptera bonasus along the Atlantic coast, USA. Marine Ecology Progress Series 602: 197–211. doi: 10.3354/meps12686
   Web of Science ®Google Scholar
• Oksanen J, Blanchet FG, Kindt R, Legendre P, O’Hara RB, Simpson GL, et al. 2008. vegan 2.6-4: community ecology package. Available at https://cran.r-project.org/package=vegan.
   Google Scholar
• Pacoureau N, Rigby CL, Kyne PM, Sherley RB, Winker H, Carlson JK et al. 2021. Half a century of global decline in oceanic sharks and rays. Nature 589: 567–571. doi: 10.1038/s41586-020-03173-9
   PubMed Web of Science ®Google Scholar
• Pillans RD, Fry GC, Steven ADL, Patterson T. 2020. Environmental influences on long-term movement patterns of a euryhaline elasmobranch (Carcharhinus leucas) within a subtropical estuary. Estuaries and Coasts 43: 2152–2169. doi: 10.1007/s12237-020-00755-8
   Web of Science ®Google Scholar
• Pollom R, Da Silva C, Fennessy S, Fernando S, Gledhill K, McCord ME et al. 2019. Gymnura natalensis, The IUCN Red List of Threatened Species 2019: e.T60116A124440092.
   Google Scholar
• Pollom R, Da Silva C, Gledhill K, Leslie R, McCord ME, Winker HE. 2020a. Acroteriobatus annulatus. The IUCN Red List of Threatened Species 2020: e.T60163A124446397.
   Google Scholar
• Pollom R, Bennett R, Da Silva C, Ebert DA, Gledhill KA, Leslie R et al. 2020b. Dasyatis chrysonota. The IUCN Red List of Threatened Species 2020: e.T161643A124520303.
   Google Scholar
• Poulakis GR. 2013. Reproductive biology of the cownose ray in the Charlotte Harbor estuarine system, Florida. Marine and Coastal Fisheries 5: 159–173. doi: 10.1080/19425120.2013.795509
   Web of Science ®Google Scholar
• R Core Team. 2020. R: a language and environment for statistical computing. Vienna, Austria: R Foundation for Statistical Computing.
   Google Scholar
• Robinson NJ, Bigelow WF, Cuffley J, Gary M, Hoefer S, Mills S et al. 2020. Validating the use of drones for monitoring the abundance and behaviour of juvenile green sea turtles in mangrove creeks in The Bahamas. Testudo 9: 24–35.
   Google Scholar
• Royal HaskoningDHV. 2018. Keurbooms–Bitou Estuarine Management Plan ver. 2. Report MD1819 prepared for Western Cape Government Environmental Affairs and Development Planning. Cape Town, South Africa: Royal HaskoningDHV.
   Google Scholar
• Schlaff AM, Heupel MR, Simpfendorfer CA. 2014. Influence of environmental factors on shark and ray movement, behaviour and habitat use: a review. Reviews in Fish Biology and Fisheries 24: 1089–1103.
   Google Scholar
• Schumann EH. 2021. Floods, sedimentation and tidal exchanges in the Keurbooms Estuary, South Africa. Geo-Marine Letters 41: article 34. doi: 10.1007/s00367-021-00709-4
   Web of Science ®Google Scholar
• Schumann EH, Perrins LA, Hunter IT. 1982. Upwelling along the South Coast of the Cape Province, South Africa. South African Journal of Science 78: 238–242.
   Web of Science ®Google Scholar
• Séguigne C, Mourier J, Clua É, Buray N, Planes S. 2023. Citizen science provides valuable data to evaluate elasmobranch diversity and trends throughout the French Polynesia’s shark sanctuary. PLoS ONE 18: e0282837. doi: 10.1371/journal.pone.0282837
   PubMed Web of Science ®Google Scholar
• Shah Esmaeili S, Corte GN, Checon HH, Gomes TRC, Lefcheck JS, Amaral ACZ, Turra A. 2021. Comprehensive assessment of shallow surf-zone fish biodiversity requires a combination of sampling methods. Marine Ecology Progress Series 667: 131–144. doi: 10.3354/meps13711
   Web of Science ®Google Scholar
• Sherman CS, Chin A, Heupel MR, Simpfendorfer CA. 2018. Are we underestimating elasmobranch abundances on baited remote underwater video systems (BRUVS) using traditional metrics? Journal of Experimental Marine Biology and Ecology 503: 80–85. doi: 10.1016/j.jembe.2018.03.002
   Web of Science ®Google Scholar
• Teske PR, Cherry MI, Matthee CA. 2003. Population genetics of the endangered Knysna seahorse, Hippocampus capensis. Molecular Ecology 12: 1703–1715. doi: 10.1046/j.1365-294X.2003.01852.x
   PubMed Web of Science ®Google Scholar
• van Niekerk L, Adams JB, James NC, Lamberth SJ, MacKay CF, Turpie JK et al. 2020. An estuary ecosystem classification that encompasses biogeography and a high diversity of types in support of protection and management. African Journal of Aquatic Science 45: 199–216. doi: 10.2989/16085914.2019.1685934
   Web of Science ®Google Scholar
• Vaudo JJ, Heithaus MR. 2009. Spatiotemporal variability in a sandflat elasmobranch fauna in Shark Bay, Australia. Marine Biology 156: 2579–2590. doi: 10.1007/s00227-009-1282-2
   Web of Science ®Google Scholar
• White WT, Last PR. 2016. Myliobatidae. In: Last P, White W, de Carvalho M, Séret B, Stehmann M, Naylor G (eds), Rays of the world. Clayton, Australia: CSIRO Publishing. pp 706–725.
   Google Scholar
• White WT, Potter IC. 2004. Habitat partitioning among four elasmobranch species in nearshore, shallow waters of a subtropical embayment in Western Australia. Marine Biology 145: 1023–1032. doi: 10.1007/s00227-004-1386-7
   Web of Science ®Google Scholar