http://www.bangordailynews.com/detail/95527.htmlThe surge of Atlantic salmon that returned to the Penobscot and other Maine rivers to spawn this year appears to be the result of improved fish survival in the ocean rather than any changes to the state’s stocking program, biologists said Thursday.
Exactly why salmon seem to be faring better during the life stage they spend at sea is still open to debate, however.
More than 2,100 Atlantic salmon were counted making their way upriver in the Penobscot earlier this year. That was the largest return since 1992 and more than double the previous year’s figure.
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Rivers in Canada, Scotland and Ireland also saw larger returns this year, according to Joan Trial, a biologist with Maine’s Bureau of Sea-Run Fisheries and Habitat.
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