view inside autotrailer.
salmon fry weighing less 1 gram can tagged, , different sized tags used depending on length of fish tagged. small handheld injector portable , can used small numbers of fish tagged. large scale tagging projects, automatic tag injector used, cuts , magnetizes wire. in manual tagging, juvenile fish s snout pressed molded guide tag positioned correctly , tag automatically injected machine. these automatic injectors can integrated automated process inside of mobile trailer called autofish trailer, or autotrailer, fish mechanically sorted, adipose fin clipped, , tagged. autotrailers not require anesthetic or fish removed water. when fish tagged, tag code , other information such release date , location entered database. in pacific northwest, regional mark information system used.
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