Elemental signatures in otoliths of larval walleye pollock (Theragra chalcogramma) from the northeast Pacific Ocean
FitzGerald, Jennifer L.
Thorrold, Simon R.
Bailey, Kevin M.
Brown, Annette L.
Severin, Kenneth P.
MetadataShow full item record
The objectives of this study are to determine if larval walleye pollock from different geographic localities can be distinguished based on elemental signatures in their otoliths. By analyzing sagittal otoliths with both EPMA and laser ablation ICP-MS, we hoped to identify greater differences among locations than would have been possible by using either technique in isolation. If successful, the study may provide a powerful tool for determining stock structure and tracing migration pathways of walleye pollock in the north Pacific. These data could then be used by managers of one of the world's largest single species fisheries to direct the sustainable harvest of this considerable natural resource.
The contents of the Fishery Bulletin are not been copyrighted. The definitive version was published in Fishery Bulletin 102 (2004): 604-616.
Showing items related by title, author, creator and subject.
Integrating microsatellite DNA markers and otolith geochemistry to assess population structure of European hake (Merluccius merluccius) Tanner, Susanne E.; Perez, Montse; Presa, Pablo; Thorrold, Simon R.; Cabral, Henrique N. (2014-03)Population structure and natal origins of European hake were investigated using microsatellite DNA markers and otolith geochemistry data. Five microsatellites were sequenced and otolith core geochemical composition was ...
Thorrold, Simon R.; Jones, Geoffrey P.; Planes, Serge; Hare, Jonathan A. (NRC Research Press, 2006-04-13)We describe a new technique for transgenerational marking of embryonic otoliths that promises significant advancements in the study of larval dispersal and population connectivity in marine fishes. The approach is based ...
Walther, Benjamin D.; Thorrold, Simon R.; Olney, John E. (American Fisheries Society, 2008-01-03)Population connectivity is a critical component in the life history dynamics of anadromous fishes and in the persistence of local populations. We used geochemical signatures in the otoliths of American shad Alosa sapidissima ...