Species at Risk
Inner Bay of Fundy Salmon
What is the Inner Bay of Fundy Salmon?
Atlantic Salmon relocates their native rivers by “scent”.
As they leave the river as smolt, the chemical and olfactory signature of
the river will be imprinted in their memory. As they retrace their steps back
home, they follow this familiar scent!
Inner Bay of Fundy (iBoF) Salmon are genetically distinct from other Atlantic
Salmon of the world.
All Atlantic Salmon spend their first years in rivers where they rely mostly
on aquatic insects and small fish for food. Fast flowing water and deep pools
of Fundy National
Park of Canada’s rivers require them to be well adapted to find
By June of the salmon’s second or third year, they move from river
to ocean. Atlantic Salmon from North America and Europe migrate within the
Northern Atlantic Ocean for one to two years before returning to their native
rivers to spawn. If the fish are strong and healthy, they may survive to spawn
a second or third time in the future.
New information has shed light on the patterns of the iBoF Salmon. Previous
beliefs included a limited ocean migration
within the Bay of Fundy and Gulf of Maine. Recent studies may indicate that
some iBoF fish leave these areas to move further out into the Atlantic Ocean.
A larger proportion of the population matures after one year at sea than other
Atlantic Salmon populations. Also, iBoF Salmon population relied heavily on
repeat spawners to keep the population number stable.
Where are Inner Bay of Fundy Salmon found?
The acoustic tags are attached to the fish on either
side of the dorsal fin. ©
The iBoF Atlantic Salmon are found in the eastern half of the Bay of Fundy.
Out of the 32 main rivers flowing into this part of the Bay, two salmon rivers
are partially contained within Fundy National Park’s boundaries –
the Upper Salmon River and the Point Wolfe River. All 32 rivers face the same
ecological challenges as they flow through towns, clear cuts, tree farms and
At the age of 2 or 3, the fish leave their native rivers to move into the
Bay of Fundy/Gulf of Maine system and some may move into the Atlantic Ocean.
Their ocean migrations are not fully understood.