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Full-Text Articles in Aquaculture and Fisheries
Twenty-Five Years Of Change In Spruce Grouse Occupancy At Their Southern Range Margin In Maine, Usa, Christopher J. Gilbert
Twenty-Five Years Of Change In Spruce Grouse Occupancy At Their Southern Range Margin In Maine, Usa, Christopher J. Gilbert
Honors College
Species at their southern range margin are often dispersed throughout fragmented populations where they experience less optimum conditions compared to their central range. Spruce Grouse (Falcipennis canadensis) are boreal forest obligates distributed throughout the Northern United States and Canada and reach their southeastern range extent in Maine. I resurveyed 18 Black Spruce (Picea mariana) – Tamarack (Larix laricina) stands on Mount Desert Island, Maine, to observe changes in Spruce Grouse occupancy and abundance between the early 1990s (Whitcomb et al. 1996) and present day. I conducted two rounds of call back surveys within each …
Report On American Eel (Anguilla Rostrata) Mark Recapture Study: Year 1, Christopher D. Johnson
Report On American Eel (Anguilla Rostrata) Mark Recapture Study: Year 1, Christopher D. Johnson
Maine Sea Grant Publications
In 2017, Sipayik Environmental Department staff conducted a abundance and distribution study, using a mark-recapture method study focusing on the American eel ( Anguillla rostrata ), a species of cultural importance to the Passamaquoddy. The study’s focus area, the Pennamaquan Watershed, spans from its northernmost extent in Pembroke, Maine, south to Charlotte, Maine.This was the first time since 2005 that the Passamaquoddy Tribe studied the American eel. The 2005 study observed preferred eel habitat and migration routes on the dam at little river located in Perry Maine, 7 miles east of the Pennamaquan Lake. It also served as a pilot …