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Oceans apart? Short-term movements and behaviour of adult bull sharks Carcharhinus leucas in Atlantic and Pacific Oceans determined from pop-off satellite archival tagging

Authors

  • J. M. Brunnschweiler,

    Corresponding author
    1. ETH Zurich, Raemistrasse 101, CH-8092 Zurich, Switzerland
      Tel.: +41 43 305 7967; fax: +41 44 362 5085; email: juerg@gluecklich.net
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  • N. Queiroz,

    1. CIBIOUniversidade do Porto, Campus Agrário de Vairão, Rua Padre Armando Quintas, 4485-668 Vairão, Portugal
    2. Marine Biological Association of the United Kingdom, The Laboratory, Citadel Hill, Plymouth PL1 2PB, U.K.
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  • D. W. Sims

    1. Marine Biological Association of the United Kingdom, The Laboratory, Citadel Hill, Plymouth PL1 2PB, U.K.
    2. School of Marine Sciences and Engineering, University of Plymouth, Drake Circus, Plymouth PL4 8AA, U.K.
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Tel.: +41 43 305 7967; fax: +41 44 362 5085; email: juerg@gluecklich.net

Abstract

Adult bull sharks Carcharhinus leucas were monitored with electronic tags to investigate horizontal and vertical movements in the Atlantic and Pacific Oceans. In both locations, C. leucas showed some fidelity to specific coastal areas with only limited horizontal movements away from the tagging sites after tag attachment. Fish tagged in the Bahamas were detected mostly in the upper 20 m of the water column in water 25–26° C, whereas C. leucas tagged in Fiji spent most of their time below 20 m in water usually >26° C. The results highlight the importance of coastal inshore habitats for this species.

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