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.
Migratory patterns of American shad (Alosa sapidissima) revealed by natural geochemical tags in otoliths Walther, Benjamin D. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2007-02)Geochemical signatures in the otoliths of diadromous fishes may allow for retrospective analyses of natal origins. In an assessment of river-specific signatures in American shad (Alosa sapidissima), an anadromous clupeid ...
Temperature and salinity effects on magnesium, manganese, and barium incorporation in otoliths of larval and early juvenile spot Leiostomus xanthurus Martin, Gretchen Bath; Thorrold, Simon R. (Inter-Research, 2005-06-02)The use of otolith chemistry to delineate fish populations and trace migration pathways is premised on a significant correlation between the elemental composition of otoliths and physicochemical properties of the ambient ...
Water, not food, contributes the majority of strontium and barium deposited in the otoliths of a marine fish Walther, Benjamin D.; Thorrold, Simon R. (Inter-Research, 2006-04-13)We quantified the relative contributions of water and food to strontium (Sr) and barium (Ba) deposited in otoliths of juvenile mummichogs Fundulus heteroclitus. Fish were reared in seawater spiked with 86Sr and 137Ba ...