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Fieldwork is complete and compilation of the data is underway.
E-mail us and let's dicuss your idea. E-mail us and let's dicuss your idea. Developing a New Lamprey Ageing Tool Developing a New Lamprey Ageing Tool Developing a new Lamprey Ageing Tool Developing a New Lamprey Ageing Tool U.S. and Canadian fisheries personell will soon have another tool to aid in their combat against the sea lamprey, an exoic invader that entered the Great Lakes earlier this century and has contributed greatly to the decline of whitfish and lake trout populations. These calcareous bony structures which are found in the lamprey's head exhibit an internal banding pattern that is correlated to growing seasons, similar to the growth rings on a tree. E-mail us and let's dicuss your idea.