Residents note significant changes in the Christiansen Lake ecosystem since 2019. This includes fewer nesting birds, fish, and mammals around the lake, while the leech population has increased along with the occurrence of algal blooms.
Slimy sculpins (Cottus cognatus) are small, nocturnal, bottom-dwelling fish that lack a swim bladder to help them stay bouyant in the water. Their size and habitat allow them to easily avoid fishing gear designed for salmon.
Early snowmelt and low precipitation have led to low river water levels on the southern Seward Peninsula. Low water levels may be a contributing factor in observations of poor fishing, and poor fish health, along the western coast of Alaska.
A jökulhlaup flood struck West Iceland’s Hvítá river in the early hours of Tuesday morning when water from a lagoon by the Langjökull glacier suddenly broke a new path and flowed in a different direction. Thick glacial mud now coats the river banks, and much of Borgarfjörður fjord.
The sea lions have posed a long-running conundrum for wildlife officials, pitting mammals protected under federal law against protected — and valuable — fish runs.
Salmon rivers like the Exploits River were closed to anglers around the province by the Department of Fisheries and Oceans earlier this week because of low water levels.
The Amur River, once full of salmon, has seen the fish all but vanish since 2017. The problem started because of over fishing. At first companies were harvesting in the first 100 kilometers of the river, and since they have expanded 700, 800 kilometers upstream.
Southern resident killer whales made their first appearance in the Salish Sea on Canada Day after more than two months with only a brief sighting off the west coast of Vancouver Island.