Show simple item record

dc.contributorVirginia Techen
dc.contributor.authorBarlow, P. F.en
dc.contributor.authorBerkson, J.en
dc.date.accessioned2014-05-14T14:36:49Zen
dc.date.available2014-05-14T14:36:49Zen
dc.date.issued2012-07en
dc.identifier.citationBarlow, Paige F. and Berkson, Jim (2012). "Evaluating methods for estimating rare events with zero-heavy data: a simulation model estimating sea turtle bycatch in the pelagic longline fishery," Fishery Bulletin, 110(3), pp. 344-360. http://fishbull.noaa.gov/1103/barlow.pdfen
dc.identifier.issn0090-0656en
dc.identifier.urihttp://hdl.handle.net/10919/48014en
dc.description.abstractEstimating rare events from zero-heavy data (data with many zero values) is a common challenge in fisheries science and ecology. For example, loggerhead sea turtles (Caretta caretta) and leatherback sea turtles (Dermochelys coriacea) account for less than 1% of total catch in the U.S. Atlantic pelagic longline fishery. Nevertheless, the Southeast Fisheries Science Center (SEFSC) of the National Marine Fisheries Service (NMFS) is charged with assessing the effect of this fishery on these federally protected species. Annual estimates of loggerhead and leatherback bycatch in a fishery can affect fishery management and species conservation decisions. However, current estimates have wide confidence intervals, and their accuracy is unknown. We evaluate 3 estimation methods, each at 2 spatiotemporal scales, in simulations of 5 spatial scenarios representing incidental capture of sea turtles by the U.S. Atlantic pelagic longline fishery. The delta-lognormal method of estimating bycatch for calendar quarter and fishing area strata was the least biased estimation method in the spatial scenarios believed to be most realistic. This result supports the current estimation procedure used by the SEFSC.en
dc.description.sponsorshipNational Marine Fisheries Service Southeast Fisheries Science Centeren
dc.language.isoen_USen
dc.publisherNational Marine Fisheries Service Scientific Publication Officeen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectgulf-of-mexicoen
dc.subjectcount dataen
dc.subjectnorth-atlanticen
dc.subjectabundanceen
dc.subjectloggerheaden
dc.subjectcatchen
dc.subjectpacificen
dc.subjectfisheriesen
dc.titleEvaluating methods for estimating rare events with zero-heavy data: a simulation model estimating sea turtle bycatch in the pelagic longline fisheryen
dc.typeArticleen
dc.contributor.departmentFish and Wildlife Conservationen
dc.identifier.urlhttp://fishbull.noaa.gov/1103/barlow.pdfen
dc.date.accessed2014-05-12en
dc.title.serialFishery Bulletinen


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record