Abstract
ABSTRACl' Swordfish are known to undergo large diel vertical movements from surface waters at night to > 300 m depth during the day. Evidence presented over the past several deeades suggests the lunar cycle affects these vertical migrations. This study collected data concurrently from 7 swordfish throughout 3 consecutive lunar cycles using pop-up satellite archival tags. All individuals demonstrated an inverse relationship between recorded nocturnal depths and lunar illumination. RESUMEN Los peces espadas son reconocidos por experimentar extensas ntigraciones verticales deade ]a superfi-cie durante ]a noehe, hasta aguas profundas (> 300 m) durante el dfa. La evidencia presen!ada durante las pasadas decadas expone que el cicio lunar afecta eslas. Este estudio presenta ]a infurmaci6n que ha sido recopilada reci-entem.ente de 7 peces espadas durante 3 ciclos lunares consecutivos utilizando etiquetas de archivos que resurgen a ]a superficie y envian toda ]a informaci6n al sat6lite, conocidos en ingl6s como ''pop-up satellite archival tags." Todos los individuos demostraron una relaci6n inversa entre los datos obtenidos para profundidades documentadas en las horas noctumas e.
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CITATION STYLE
Loefer, J. K., Sedberry, G. R., & McGovern, J. C. (2007). Nocturnal Depth Distribution of Western North Atlantic Swordfish (Xiphias gladius, Linnaeus, 1758) in Relation to Lunar Illumination. Gulf and Caribbean Research, 19. https://doi.org/10.18785/gcr.1902.10
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