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A salmon run is an annual fish migration event where many salmonid species, which are typically hatched in fresh water and live most of their adult life downstream in the ocean, swim back against the stream to the upper reaches of rivers to spawn on the gravel beds of small creeks.
28 lip 2020 · The Penobscot River hosts the largest remaining run of Atlantic salmon in the United States. However, numbers are just a fraction of what they used to be—75,000 to 100,000 Atlantic salmon used to return to the river to spawn.
The Atlantic salmon (Salmo salar) is a species of ray-finned fish in the family Salmonidae. It is the third largest of the Salmonidae, behind Siberian taimen and Pacific Chinook salmon, growing up to a meter in length. Atlantic salmon are found in the northern Atlantic Ocean and in rivers that flow into it.
One of the great journeys of the natural world comes to a close at the end of the autumn: the great Atlantic salmon run. Salmon navigate to their rivers of birth, gathering at river mouths around our coasts after five years' maturing in the Atlantic.
1 gru 2022 · The Maine Department of Marine Resources says the largest run of river herring has been recorded in the Penobscot River this year — close to three million fish. Director of Sea Run Fisheries Sean Ledwin says it was also a good year for Atlantic salmon, which used to number in the tens of thousands.
6 wrz 2023 · Officials counted more than 1,500 of the salmon in the Penobscot River, which is home to the country’s largest run of Atlantic salmon, Maine state data show. That is the most since 2011 when researchers counted about 2,900 of them.
28 gru 2022 · Karppinen et al. demonstrated that the survival of hatchery-origin Atlantic Salmon smolts through the regulated River Oulujoki (Finland) was greater when stocking occurred at the optimal temperatures for migration (8–10°C) and concurrent with the run timing of natural-origin smolts.
