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Marine Biology Commons

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Physical Sciences and Mathematics

Marine & Environmental Sciences Faculty Reports

2010

Pelagic longline

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Full-Text Articles in Marine Biology

Sailfish (Istiophorus Platypterus) Habitat Utilization In The Southern Gulf Of Mexico And Florida Straits With Implications On Vulnerability To Shallow-Set Pelagic Longline Gear, David W. Kerstetter, Shannon Michael Bayse, John E. Graves Jan 2010

Sailfish (Istiophorus Platypterus) Habitat Utilization In The Southern Gulf Of Mexico And Florida Straits With Implications On Vulnerability To Shallow-Set Pelagic Longline Gear, David W. Kerstetter, Shannon Michael Bayse, John E. Graves

Marine & Environmental Sciences Faculty Reports

A total of 19 pop-up satellite archival tags (PSATs) were deployed on sailfish in the southern Gulf of Mexico between 2005 and 2007 aboard a commercial pelagic longline vessel (n = 18) and a recreational rod-and-reel vessel (n = 1). All PSATs were programmed to collect pressure (depth), temperature, and light-level data for 10 days at approximately 90-second intervals. These point-level data were not summarized prior to transmission, allowing the reconstruction of vertical movement patterns. Three tags suggested mortality events and were excluded from subsequent analyses. We present the preliminary data analyses from the remaining 16 PSATs. Sailfish are primarily …