A bit of info on the shee fish:
Sheefish spawn during fall in the upper reaches of
the Kobuk River. A large female may produce
400,000 eggs, which are broadcast at water's surface
while the male fertilizes them below as they sink
through the water column. The young sheefish
emerge in spring and are swept downstream by
spring floods to the lower river or estuary, where
they begin feeding on plankton but soon switch to a
diet of small fish. Sheefish grow rapidly; males
reach sexual maturity at about 30 inches in 8 years,
and females become mature in 9 years at about 34
inches.
The spawning migration begins soon after spring
breakup. Sexually mature fish move gradually
upstream and gather on the spawning grounds in
early August. Spawning is usually completed by
late September (although not all sheefish spawn
every year), and spent fish migrate downstream to
winter in Hotham Inlet. Sheefish in the Kobuk
River can live 20 years or more and reach weights of
50 pounds (23 kg). The largest sheefish are females,
carrying many eggs.
More than 20,000 sheefish spawn in the Kobuk
River each year, presenting a good opportunity for
anglers seeking this species.
the Kobuk River. A large female may produce
400,000 eggs, which are broadcast at water's surface
while the male fertilizes them below as they sink
through the water column. The young sheefish
emerge in spring and are swept downstream by
spring floods to the lower river or estuary, where
they begin feeding on plankton but soon switch to a
diet of small fish. Sheefish grow rapidly; males
reach sexual maturity at about 30 inches in 8 years,
and females become mature in 9 years at about 34
inches.
breakup. Sexually mature fish move gradually
upstream and gather on the spawning grounds in
early August. Spawning is usually completed by
late September (although not all sheefish spawn
every year), and spent fish migrate downstream to
winter in Hotham Inlet. Sheefish in the Kobuk
River can live 20 years or more and reach weights of
50 pounds (23 kg). The largest sheefish are females,
carrying many eggs.
More than 20,000 sheefish spawn in the Kobuk
River each year, presenting a good opportunity for
anglers seeking this species.