Free Standard AU & NZ Shipping For All Book Orders Over $80!
Register      Login
Marine and Freshwater Research Marine and Freshwater Research Society
Advances in the aquatic sciences
RESEARCH ARTICLE

Migration of green turtles (Chelonia mydas) from Australasian feeding grounds inferred from genetic analyses

Kiki E. M. Dethmers A B F , Michael P. Jensen A , Nancy N. FitzSimmons A , Damien Broderick C , Colin J. Limpus D and Craig Moritz E
+ Author Affiliations
- Author Affiliations

A Institute for Applied Ecology, Faculty of Applied Science, University of Canberra, Canberra, ACT 2601, Australia.

B Department of Environmental Studies, Radboud University, Nijmegen 6500 HC,The Netherlands.

C Department of Employment, Economic Development and Innovation, University of Queensland, St Lucia, Qld 4072, Australia.

D Queensland Environmental Protection Agency, Brisbane, Qld 4002, Australia.

E Museum of Vertebrate Zoology, University of California, Berkeley, CA 94720-3140, USA.

F Corresponding author. Email: kdethmers@gmail.com

Marine and Freshwater Research 61(12) 1376-1387 https://doi.org/10.1071/MF10084
Submitted: 31 March 2010  Accepted: 5 August 2010   Published: 13 December 2010

Abstract

Coastal seagrass habitats in tropical and subtropical regions support aggregations of resident green turtles (Chelonia mydas) from several genetically distinct breeding populations. Migration of individuals to their respective dispersed breeding sites provides a complex pattern of migratory connectivity among nesting and feeding habitats of this species. An understanding of this pattern is important in regions where the persistence of populations is under threat from anthropogenic impacts. The present study uses mitochondrial DNA and mixed-stock analyses to assess the connectivity among seven feeding grounds across the north Australian coast and adjacent areas and 17 genetically distinct breeding populations from the Indo-Pacific region. It was hypothesised that large and geographically proximate breeding populations would dominate at nearby feeding grounds. As expected, each sampled feeding area appears to support multiple breeding populations, with two aggregations dominated by a local breeding population. Geographic distance between breeding and feeding habitat strongly influenced whether a breeding population contributed to a feeding ground (wi = 0.654); however, neither distance nor size of a breeding population was a good predictor of the extent of their contribution. The differential proportional contributions suggest the impact of anthropogenic mortality at feeding grounds should be assessed on a case-by-case basis.

Additional keywords: dispersal, Indo-Pacific, migratory connectivity, mixed-stock analysis, mtDNA.


References

Abreu-Grobois, F. A., Horrocks, J. A., Formia, A., Dutton, P., Leroux, R., Vélez-Zuazo, X., Soares, L., and Meylan, A. (2006). New mtDNA D-loop primers which work for a variety of marine turtle species may increase the resolution of mixed stock analysis. In ‘Proceedings of the 26th Annual Symposium on Sea Turtle Biology and Conservation’. (Eds M. Frick, A. Panagopoulous, A. F. Rees and K. Williams.) p. 179. (International Sea Turtle Society: Athens, Greece.)

Alerstam, T., Hedenstrom, A., and Akesson, S. (2003). Long-distance migration: evolution and determinants. Oikos 103, 247–260.
Long-distance migration: evolution and determinants.Crossref | GoogleScholarGoogle Scholar |

Balazs, G. H. (1994). Homeward bound: satellite tracking of Hawaiian green turtles from nesting beaches to foraging pastures. In ‘Proceedings of the 13th Annual Symposium on Sea Turtle Biology and Conservation’. (Eds B. A. Schroeder and B. Witherington.) pp. 205–208. NOAA Technical Memorandum NMFS-SEFSC-341, Jekyll Island, GA, USA.

Bass, A. L., and Witzell, W. N. (2000). Demographic composition of immature green turtles (Chelonia mydas) from the east central Florida coast: evidence from mtDNA markers. Herpetologica 56, 357–367..

Bass, A. L., Epperly, S. P., and Braun-McNeill, J. (2004). Multi-year analysis of stock composition of a loggerhead turtle (Caretta caretta) foraging habitat using maximum likelihood and Bayesian methods. Conservation Genetics 5, 783–796.
Multi-year analysis of stock composition of a loggerhead turtle (Caretta caretta) foraging habitat using maximum likelihood and Bayesian methods.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2MXht1Ghs7k%3D&md5=d2ba855d852ed968240d1c87afbdfc29CAS |

Bass, A. L., Epperly, S. P., and Braun-McNeill, J. (2006). Green turtle (Chelonia mydas) foraging and nesting aggregations in the Caribbean and Atlantic: impact of currents and behaviour on dispersal. The Journal of Heredity 97, 346–354.
Green turtle (Chelonia mydas) foraging and nesting aggregations in the Caribbean and Atlantic: impact of currents and behaviour on dispersal.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD28Xotl2ksbs%3D&md5=4422b7d2c281293ec88e883ba1dc71feCAS | 16782781PubMed |

Bjorndal, K. A., Lutz, P. L., and Musick, J. A. (1997). Foraging ecology and nutrition of sea turtles. In ‘The Biology of Sea Turtles’. (Eds P. L. Lutz and J. A. Musick.) pp. 199–231. (CRC Press: Boca Raton, FL.)

Bjorndal, K. A., Bolten, A. B., and Chaloupka, M. Y. (2000). Green turtle somatic growth model: evidence for density dependence. Ecological Applications 10, 269–282..

Blumenthal, J. M., Abreu-Grobois, F. A., Austin, T. J., Broderick, A. C., Bruford, M. W., Coyne, M. S., Ebanks-Petrie, G., Formia, A., Meylan, P. A., Meylan, A. B., and Godley, B. J. (2009). Turtle groups or turtle soup: dispersal patterns of hawksbill turtles in the Caribbean. Molecular Ecology 18, 4841–4853.
Turtle groups or turtle soup: dispersal patterns of hawksbill turtles in the Caribbean.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC3cXjslKqtw%3D%3D&md5=a101f198462ff99296dc6ec29b5fd4d3CAS | 19889039PubMed |

Bolker, B. M., Okuyama, T., Bjorndal, K. A., and Bolten, A. B. (2007). Incoroporating multiple mixed stocks in mixed stock analysis: ‘many-to-many’ analyses. Molecular Ecology 16, 685–695.
Incoroporating multiple mixed stocks in mixed stock analysis: ‘many-to-many’ analyses.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2sXjs1Gmu7g%3D&md5=57bf7f584e15e6d89cfa2a5f623767b1CAS | 17284204PubMed |

Bolten, A. B., Lutz, P. L., Musick, J. A., and Wyneken, J. (2003). Variation in sea turtle life history patterns: neritic vs. oceanic developmental stages. In ‘The Biology of Sea Turtles Volume II’. (Eds P. L. Lutz, J. A. Musick and J. Wyneken.) pp. 243–257. (CRC Press: Boca Raton, FL.)

Bowen, B. W., Grant, W. S., Hillis-Starr, Z., Shaver, D. J., Bjorndal, K. A., Bolten, A. B., and Bass, A. L. (2007). Mixed-stock analysis reveals the migrations of juvenile hawksbill turtles (Eretmochelys imbricata) in the Carribean Sea. Molecular Ecology 16, 49–60.
Mixed-stock analysis reveals the migrations of juvenile hawksbill turtles (Eretmochelys imbricata) in the Carribean Sea.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD2sXit1CltLc%3D&md5=c14fae831a64e3c1f9189290e5cd1d05CAS | 17181720PubMed |

Boyd, I. L. (2004). Migration of marine mammals. In ‘Biological Resources and Migration’. (Ed. D. Werner.) pp. 203–210. (Springer-Verlag: Berlin.)

Bray, N. A., Hautala, S., Chong, J., and Pariwono, J. (1996). Large-scale sea level, thermocline, and wind variations in the Indonesian throughflow region. Journal of Geophysical Research–Oceans 101, 12 239–12 254.
Large-scale sea level, thermocline, and wind variations in the Indonesian throughflow region.Crossref | GoogleScholarGoogle Scholar |

Broderick, D. (1997). Subsistence harvesting of marine turtles in the Solomon Islands. In ‘Proceedings of the 17th Annual Symposium on Sea Turtle Biology and Conservation’. (Eds S. P. Epperly and J. Braun.) pp. 15–18. NOAA Technical Memorandum NMFS-SEFSC-415.

Cheng, I. J. (2000). Post-nesting migrations of green turtles (Chelonia mydas) at Wan-An Island, PengHu Archipelago, Taiwan. Marine Biology 137, 747–754.
Post-nesting migrations of green turtles (Chelonia mydas) at Wan-An Island, PengHu Archipelago, Taiwan.Crossref | GoogleScholarGoogle Scholar |

Craig, A. S., Herman, L. M., Gabriele, C. M., and Pack, A. A. (2003). Migratory timing of humpback whales (Megaptera novaeangliae) in the central North Pacific varies with age, sex and reproductive status. Behaviour 140, 981–1001.
Migratory timing of humpback whales (Megaptera novaeangliae) in the central North Pacific varies with age, sex and reproductive status.Crossref | GoogleScholarGoogle Scholar |

Crawley, M. J. (2002). ‘Statistical Computing. An Introduction to Data Analysis Using S-Plus.’ (John Wiley & Sons: Chichester, UK.)

De Silva, G. S. (1986). Turtle tagging and international tag returns for Sabah, East Malaysia. Sarawak Museum Journal 36, 263–277..

Dethmers, K. E. M. (2000). The need for co-operation in conservation of SE Aru turtles. In ‘Sea Turtles of the Indo-Pacific: Research Management & Conservation’. (Eds N. Pilcher and G. Ismail.) pp. 107–115. (ASEAN Academic Press: London.)

Dethmers, K. E. M. (2010). Ecology and phylogeography of an Australasian green turtle population: a case study for conservation from Aru. Ph.D. Thesis, Radboud University, Nijmegen, The Netherlands.

Dethmers, K. E. M., Broderick, D., Moritz, C., Fitzsimmons, N. N., Limpus, C. J., Lavery, S., Whiting, S., Guinea, M., Prince, R. I. T., and Kennett, R. (2006). The genetic structure of Australasian green turtles (Chelonia mydas): exploring the geographical scale of genetic exchange. Molecular Ecology 15, 3931–3946.
The genetic structure of Australasian green turtles (Chelonia mydas): exploring the geographical scale of genetic exchange.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD28XhtlSmsrjP&md5=178f4ae78f395e0e09b8f284eff6c2b0CAS | 17054494PubMed |

Excoffier, L., Smouse, P. E., and Quattro, J. M. (1992). Analysis of molecular variance inferred from metric distances among DNA haplotypes: application to human mitochondrial DNA restriction data. Genetics 131, 479–491..
| 1:CAS:528:DyaK38XlsVCntro%3D&md5=bcf0104f9e068f3bc18f11bee6e4bfaeCAS | 1644282PubMed |

FitzSimmons, N. N., Moritz, C., Limpus, C. J., Pope, L., and Prince, R. (1997). Geographic structure of mitochondrial and nuclear gene polymorphisms in Australian green turtle populations and male-biased gene flow. Genetics 1473, 1843–1854..

Gearheart, G. (2005). Raja Ampat sea-turtle satellite tracking project: an endangered green turtle nesting colony in P. Sayang and P. Piai, the elusive hawksbills of Misool and first tracking results. WWF/CI, Indonesia.

Johannes, R. E., and MacFarlane, W. (1991). ‘Traditional Fishing in the Torres Strait Islands.’ (CSIRO: Hobart.)

Kennett, R., Munungurritj, N., and Yunupingu, D. (2004). Migration patterns of marine turtles in the Gulf of Carpentaria, northern Australia: implications for Aboriginal management. Wildlife Research 31, 241–248.
Migration patterns of marine turtles in the Gulf of Carpentaria, northern Australia: implications for Aboriginal management.Crossref | GoogleScholarGoogle Scholar |

Klain, S., Eberdong, J., Kitalong, A., Yalap, Y., Matthews, E., Eledui, A., Morris, M., Andrew, W., Albis, D., and Kamesong, P. (2007). Linking Micronesia and Southeast Asia: Palau sea turtle satellite tracking and flipper tag returns. Marine Turtle Newsletter 118, 9–11..

Kowarsky, J. (1982). Subsistence hunting of sea turtles in Australia. In ‘Biology and Conservation of Sea Turtles’. (Ed. K. A. Bjorndal.) pp. 305–313. (Smithsonian Institution Press: Washington, DC.)

Lahanas, P. N., Bjorndal, K. A., Encalada, S. E., Miyamoto, M. M., Valverde, R. A., and Bowen, B. W. (1998). Genetic composition of a green turtle (Chelonia mydas) feeding ground population: evidence for multiple origins. Marine Biology 130, 345–352.
Genetic composition of a green turtle (Chelonia mydas) feeding ground population: evidence for multiple origins.Crossref | GoogleScholarGoogle Scholar |

Limpus, C. J. (1996). Marine turtle populations of Southeast Asia and the western Pacific region: distribution and status. In ‘Marine Turtle Research and Management in Indonesia’. (Eds Y. R. Noor, I. R. Lubis, R. Ounsted, S. Troëng and A. Abdullah.) pp. 37–72. (Wetlands International/PHPA/Environment Australia: Bogor, Indonesia.)

Limpus, C. J., and Chatto, R. (2004). Marine turtles. In ‘Description of Key Species Groups in the Northern Planning Area’. (Ed. National Oceans Office.) pp. 113–136. (National Oceans Office: Hobart.)

Limpus, C. J., and Parmenter, C. J. (1985). The sea turtle resources of the Torres Strait Region. In ‘Traditional Knowledge of the Marine Environment in Northern Australia’. (Eds F. Gray and I. Zann.) pp. 95–107. (Great Barrier Reef Marine Park Authority: Townsville, Qld.)

Limpus, C. J., and Reed, P. C. (1985a). Green sea turtles stranded by cyclone Kathy on the southwestern coast of the Gulf of Carpentaria. Australian Wildlife Research 12, 523–533.
Green sea turtles stranded by cyclone Kathy on the southwestern coast of the Gulf of Carpentaria.Crossref | GoogleScholarGoogle Scholar |

Limpus, C. J., and Reed, P. C. (1985b). The green turtle, Chelonia mydas, in Queensland: a preliminary description of the population structure in a coral reef feeding ground. In ‘Biology of Australasian Frogs and Reptiles’. (Eds G. C. Grigg, R. Shine and H. Ehmann.) pp. 47–52. (Royal Zoological Society of New South Wales: Sydney.)

Limpus, C. J., Miller, J. D., Parmenter, C. J., Reimer, D., McLachlan, N., and Webb, R. (1992). Migration of green (Chelonia mydas) and loggerhead (Caretta caretta) turtles to and from eastern Australian rookeries. Wildlife Research 19, 347–358.
Migration of green (Chelonia mydas) and loggerhead (Caretta caretta) turtles to and from eastern Australian rookeries.Crossref | GoogleScholarGoogle Scholar |

Limpus, C. J., Miller, J. D., Parmenter, C. J., and Limpus, D. J. (2003). The green turtle, Chelonia mydas, population of Raine Island and the Northern Great Barrier Reef: 1843–2001. Memoirs of the Queensland Museum 49, 349–440..

Limpus, C. J., Limpus, D. J., Arthur, K. E., and Parmenter, C. J. (2005). Monitoring green turtle population dynamics in Shoalwater Bay: 2000 to 2004. Queensland Environmental Protection Agency and Great Barrier Reef Marine Park Authority, Research Report 83, Townsville, Qld.

Luke, K., Horrocks, J. A., LeRoux, R. A., and Dutton, P. H. (2004). Origins of green turtle (Chelonia mydas) feeding aggregations around Barbados, West Indies. Marine Biology 144, 799–805.
Origins of green turtle (Chelonia mydas) feeding aggregations around Barbados, West Indies.Crossref | GoogleScholarGoogle Scholar |

Luschi, P., Hays, G. C., del Seppia, C., Marsh, R., and Papi, F. (1998). The navigational feats of green sea turtles migrating from Ascension Island investigated by satellite telemetry. Proceedings of the Royal Society of London. Series B. Biological Sciences 265, 2279–2284.
The navigational feats of green sea turtles migrating from Ascension Island investigated by satellite telemetry.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DyaK1M%2FpvVWnug%3D%3D&md5=0e02d324d5a1456a2ccc28a8fd680fbbCAS |

Luschi, P., Hays, G. C., and Papi, F. (2003). A review of long-distance movements by marine turtles, and the possible role of ocean currents. Oikos 103, 293–302.
A review of long-distance movements by marine turtles, and the possible role of ocean currents.Crossref | GoogleScholarGoogle Scholar |

Millar, R. B. (1987). Maximum likelihood estimation of mixed stock fishery composition. Canadian Journal of Fisheries and Aquatic Sciences 44, 583–590.
Maximum likelihood estimation of mixed stock fishery composition.Crossref | GoogleScholarGoogle Scholar |

Myers, R. M., Maniatis, T., and Lerman, L. S. (1987). Detection and localization of single base changes by denaturing gradient gel electrophoresis. Methods in Enzymology 155, 501–527.
Detection and localization of single base changes by denaturing gradient gel electrophoresis.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaL1cXitVWit7o%3D&md5=59e20de5d0ead0163a093b08b7d5faaaCAS | 3431470PubMed |

Norman, J. A., Moritz, C., and Limpus, C. J. (1994). Mitochondrial DNA control region polymorphisms: genetic markers for ecological studies of marine turtles. Molecular Ecology 3, 363–373.
Mitochondrial DNA control region polymorphisms: genetic markers for ecological studies of marine turtles.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaK2MXhtlyksbc%3D&md5=6269c966078db50dfdffe8d9a34a6030CAS | 7921361PubMed |

Pella, J., and Masuda, M. (2001). Bayesian methods for analysis of stock mixtures from genetic characters. Fishery Bulletin 99, 151–167..

Pella, J., and Masuda, M. (2006). The Gibbs and split-merge sampler for population mixture analysis from genetic data with incomplete baselines. Canadian Journal of Fisheries and Aquatic Sciences 63, 576–596.
The Gibbs and split-merge sampler for population mixture analysis from genetic data with incomplete baselines.Crossref | GoogleScholarGoogle Scholar |

Prince, R. I. T. (1993). Western Austalian marine turtle conservation project: an outline of scope and an invitation to participate. Marine Turtle Newsletter 1993, 8–14..

Prince, R. I. T. (1997). Marine turtle conservation: the links between populations in Western Australia and the northern Australian region. People and turtles. In ‘Marine Turtle Conservation and Management in Northern Australia’. (Eds R. Kennett, A. Webb, G. Duff, M. Guinea and G. Hill.) pp. 93–99. (Centre for Indigenous Natural and Cultural Resource Management, Centre for Tropical Wetlands Management, Northern Territory University: Darwin.)

Raymond, M., and Rousset, F. (1995). An exact test for population differentiation. Evolution 49, 1280–1283.
An exact test for population differentiation.Crossref | GoogleScholarGoogle Scholar |

Roberts, M. A., Anderson, C. J., Stender, B., Segars, A., Whittaker, J. D., Grady, J., and Quattro, J. (2005). Estimated contribution of Atlantic coastal loggerhead turtle nesting populations to offshore feeding aggregations. Conservation Genetics 6, 133–139.
Estimated contribution of Atlantic coastal loggerhead turtle nesting populations to offshore feeding aggregations.Crossref | GoogleScholarGoogle Scholar |

Russell, B. C. (2005). The Ashmore region: history and development. The Beagle , 1–8..
| 1:CAS:528:DC%2BD28XjtVKqu7w%3D&md5=719f0ad52fa2793fa23d8fca98e61b89CAS |

Saint-Cast, F., and Condie, S. (2006). Circulation modelling in Torres Strait. Geoscience Australia, Record 2006/18, Canberra.

Schneider, C. J., Roessli, D., and Excoffier, L. (2000). ‘Arlequin Version 2000: a Software for Population Genetic Analysis.’ Available at http://cmpg.unibe.ch/software/arlequin3 [accessed 6 August 2010].

Schulz, J. P. (1996). Marine turtles in Aru. In ‘The Aru Archipelago: Plants, Animals, People, and Conservation’. (Ed. H. P. Nooteboom.) pp. 57–74. (Nederlandse Commissie voor Internationale Natuurbescherming: Amsterdam.)

Spring, C. S. (1990). Satellite tracking of green turtles in Australia – Preliminary results. In ‘Proceedings of the Australian Marine Turtle Conservation Workshop. Canberra, 1990’. (Ed. R. James.) pp. 14–17. (Australian Nature Conservation Agency: Canberra.)

Spring, C. S., and Pike, D. (1998). Tag recovery supports satellite tracking of a green turtle. Marine Turtle Newsletter 82, 8..

Suarez, A., and Starbird, C. H. (1996). Subsistence hunting of leatherback turtles, Dermochelys coriacea, in the Kai islands, Indonesia. Chelonian Conservation and Biology 2, 190–195..

Tamura, K., and Nei, M. (1993). Estimation of the number of nucleotide substitutions in the control region of mitochondrial-DNA in humans and chimpanzees. Molecular Biology and Evolution 10, 512–526..
| 1:CAS:528:DyaK3sXks1CksL4%3D&md5=d7612c714e7c21a2c6b514b780604e4fCAS | 8336541PubMed |

Thompson, J. D., Gibson, T. J., Plewniak, F., Jeanmougin, F., and Higgins, D. G. (1997). The CLUSTAL_X windows interface: flexible strategies for multiple sequence alignment aided by quality analysis tools. Nucleic Acids Research 25, 4876–4882.
The CLUSTAL_X windows interface: flexible strategies for multiple sequence alignment aided by quality analysis tools.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaK1cXntFyntQ%3D%3D&md5=7d46f551ff4c380b68de51e09430e340CAS | 9396791PubMed |

Troëng, S., Evans, D. R., Harrison, E., and Lagueux, C. J. (2005). Migration of green turtles Chelonia mydas from Tortuguero, Costa Rica. Marine Biology 148, 435–447.
Migration of green turtles Chelonia mydas from Tortuguero, Costa Rica.Crossref | GoogleScholarGoogle Scholar |

van de Merwe, J. P., Ibrahim, K., Lee, S. Y., and Whittier, J. M. (2009). Habitat use by green turtles (Chelonia mydas) nesting in Peninsular Malaysia: local and regional conservation implications. Wildlife Research 36, 637–645.
Habitat use by green turtles (Chelonia mydas) nesting in Peninsular Malaysia: local and regional conservation implications.Crossref | GoogleScholarGoogle Scholar |

Verschell, M. A., Kindle, J. C., and O’Brien, J. J. (1995). Effects of Indo-Pacific throughflow on the upper tropical Pacific and Indian Oceans. Journal of Geophysical Research–Oceans 100, 18 409–18 420.
Effects of Indo-Pacific throughflow on the upper tropical Pacific and Indian Oceans.Crossref | GoogleScholarGoogle Scholar |

Walker, T. A. (1990). Post-hatchling dispersal of sea turtles. In ‘Proceedings of the Australian Marine Turtle Conservation Workshop. Canberra, 1990’. (Ed. R. James.) pp. 79–94. (Australian Nature Conservation Agency: Canberra.)

Weng, K. C., Boustany, A. M., Pyle, P., Anderson, S. D., Brown, A., and Block, B. A. (2007). Migration and habitat of white sharks (Carcharodon carcharias) in the eastern Pacific Ocean. Marine Biology 152, 877–894.
Migration and habitat of white sharks (Carcharodon carcharias) in the eastern Pacific Ocean.Crossref | GoogleScholarGoogle Scholar |

Whiting, S., and Guinea, M. (1998). Where do they go? Immature green and hawksbill turtles in Fog Bay. In ‘Marine Turtle Conservation and Management in Northern Australia’. (Eds R. Kennett, A. Webb, G. Duff, M. Guinea and G. Hill.) pp. 106–109. (Centre for Indigenous Natural and Cultural Resource Management, Centre for Tropical Wetlands Management, Northern Territory University: Darwin.)

Whiting, S., and Miller, J. D. (1998). Short term foraging ranges of adult green turtles (Chelonia mydas). Journal of Herpetology 32, 330–337.
Short term foraging ranges of adult green turtles (Chelonia mydas).Crossref | GoogleScholarGoogle Scholar |

Wolanski, E. (1993). Water circulation in the Gulf of Carpentaria. Journal of Marine Systems 4, 401–420.
Water circulation in the Gulf of Carpentaria.Crossref | GoogleScholarGoogle Scholar |