Free Content Hook-and-Line Mortality of Caught and Released Red Snapper around Oil and Gas Platform Structural Habitat

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The goal of this study was to determine mortality rates of hook-and-line caught and released red snapper around oil and gas platform structural habitat. The study was conducted on a Mobil oil platform approximately 90 km south of Cameron. Louisiana, in 21 m water depth. Red snapper were caught by hook-and-line, treated (control, gas bladder deflation, tagging, tagging with deflation), and released into a vertical holding net (9 m deep) for varying lengths of time (24, 30, 36, 48 h). Results indicated an average mortality rate of 20% at 21 m depth, with no significant difference between treatments, or time-in-net. There was a significant difference in mortality between season and the interaction between season and treatment with higher mortalities observed in summer versus fall. Gas bladder deflation did not significantly enhance survival of released red snapper at 21 m.

Document Type: Research Article

Publication date: September 1, 1994

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  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
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