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b&6J&! )6:.).&8<! Conventional tags (plastic)

I'#0*3'9&#/'J#&'(&4'#03'56C*(# & Brazil 1960 ’ s Nordic fisheries1970 ’ s Gulf of Maine 2003 (from giant to juvenile schools)

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Anchor Float to the surface Send data to satellites No recovery needed Electronics with light, temperature & pressure sensors at the outer body - Positions are calculated from light - Longitudes are fairly accurate - Latitudes can be erroneous Corrosive link dissolves Separate tag from the shark

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Statistical state-space Kalman filter models for positioning Validation of models with double-tagging experiments Widely used by the community (free, open source)

Positioning models Trackit Manufacturer Software Ukfsst Kfsst Kftrack

http://code.google.com/p/geolocation/ Google code: geolocation

?/$,,"(%"&V&O&Y$0$&7'('(%& k '(3;.!:612).!6H!4(8(!*)(&7!)(&7!8(;<,! ! ! k l.<218<!(3.!3.>638.4!$&!:(<817!4$m.3.&8!H63)(8<! ! j ST83.).17!V).!96&<2)$&;!86!).3;.!n!(&(17[.!4(8(!L1.<! ! ! k G63!(!87>$9(1!>6>2>!8(;!<8247\! ! ! Satellite + Transmitted data Recovered data (sometimes gappy) (continuous, full data archive) No simple tool for managing, displaying, integration data for synthesis

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Aspects of electronic tag data processing workflow Lam CH, Tsontos VM (2011) Integrated Management and Visualization of Electronic Tag Data with Tagbase. PLoS ONE 6(7): e21810. doi:10.1371/journal.pone.0021810 http://www.plosone.org/article/info:doi/10.1371/journal.pone.0021810

Another free online mgmt system for movement data With tools for analysis, public outreach and archiving data at www.movebank.org Example: Orinoco Geese converging on Bení, Bolivia in wet season (come see poster tonight!).

M"$3E&,*(%&3"9*34#&3"2"$,&4'#C(90&7'%3$C*(&8$+"3(#&'(&%'$(0&5,6"D( & Galuardi, B, Royer, F. Golet, W., Logan, J.M., Neilson, J., and M. Lutcavage. 2010. Complex migration routes of Atlantic bluefin tuna question Start End current population structure paradigm. Can. J. Fish. Aquat. Sci. 67:966-976.

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July August n = 9 & n = 9 F677"3 September Galuardi, B., and M.E. n = 22 Lutcavage. 2012. Dispersal routes and habitat utilization of juvenile Atlantic bluefin tuna, Thunnus 27 juveniles (Age 2-5) thynuus , tracked with ~ 6000 data days mini PSAT and archival tags. Plos ONE 7(5) e37829. doi: 10.1371/journal.pone. 0037829.

January February & n = 20 n = 20 .'(0"3 March n = 20

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