Tag

Salmon Conservation

All articles tagged with #salmon conservation

Broken Counters and Drying Eggs: The Tyne’s Salmon Status Faces a 2029 Deadline

The Environment Agency reports that sea trout and salmon populations in the Tees, Wear, and Tyne rivers are declining, with the Tyne facing a potential loss of its 'not at risk' status by 2029. Equipment failures have hindered accurate monitoring, with the Wear counter offline since early 2025 and the Tyne counter relying on estimates for most of the year. July counts in the Tyne showed a significant drop compared to 2022, while the Tees recorded its lowest numbers since 2021, attributed to environmental conditions and potential alternative migration routes.

via BBC|

#environment #environment-agency #fish-counters

science1 month ago•10 min saved

Decompression, not blades, is the primary killer of salmon in Columbia River dams

Research from the Pacific Northwest National Laboratory confirms that rapid pressure drops, rather than turbine blade strikes, cause most deaths in young salmon passing through Columbia River dams. By using robotic 'Sensor Fish' to map pressure changes and testing 5,767 juvenile Chinook in controlled chambers, scientists identified swim bladder rupture and gas embolisms as the lethal mechanism. This finding has led to the development of 'fish-friendly' turbine designs that mitigate decompression, significantly improving survival rates for migrating smolts.

via Space Daily|

#barotrauma #environmental-engineering #hydropower

environment2 years ago•5 min saved

"Controversy Erupts Over Biden Administration's Plan to Remove Snake River Dams and Protect Salmon"

The Biden administration, in collaboration with Native American tribes and environmental organizations, has announced a plan to potentially breach four hydroelectric dams in Washington state to protect salmon populations. The federal government has entered into a legal agreement with the tribes and eco groups, staying litigation through 2028. The agreement includes $1 billion for wild fish restoration and the development of new clean energy power operated by tribes. While breaching the dams would require congressional approval, the agreement aims to replace the services provided by the dams and restore salmon populations within approximately eight years. Critics argue that the dams provide clean energy and vital services for transportation and agriculture, and removing them could have negative impacts on energy production, climate goals, and agriculture exports.

via Fox News|

#biden-administration #environment #environmental-groups

environment2 years ago•5 min saved

"Leaked Secret Court Agreement Exposes Biden Admin's Plan to Replace Dam Energy Projects"

Court filings have revealed a confidential agreement between the Biden administration and environmental groups seeking to remove four hydroelectric dams in Washington to protect salmon populations. The agreement, which was made public by House lawmakers, has raised concerns about the potential impacts on the region's economy, energy production, and climate goals. The dams currently provide about 8% of the state's electricity and their removal could increase carbon emissions. Industry groups argue that the dams are crucial for agriculture exports and transportation along the Columbia River system. The agreement is set to be implemented as early as December 15, pending a multiyear pause on litigation.

via Fox News|

#biden-administration #energy-production #environment

environment2 years ago•6 min saved

Biden administration's covert negotiations on dismantling vital power source raise concerns

The Biden administration is reportedly developing a settlement with environmental groups advocating for the removal of four hydroelectric dams in Washington to protect salmon populations. The government has agreed to pause litigation with the plaintiffs and has developed a package of actions and commitments, the details of which remain confidential. While proponents argue that breaching the dams would restore healthy salmon runs, opponents, including House Republicans and industry groups, warn of negative impacts on energy production, climate goals, transportation, and agriculture exports. The administration aims to balance the needs of wildlife, agriculture, and clean energy in the Pacific Northwest but has faced criticism for lack of transparency in the negotiations.

via Fox News|

#biden-administration #environment #environmental-groups

environment3 years ago•3 min saved

"West Coast tribes prompt US regulators to investigate car-tire chemical's impact on salmon"

US regulators have agreed to review the use of a chemical called 6PPD, commonly used in tire manufacturing, after a petition from three West Coast Native American tribes called for a ban due to its harmful effects on salmon populations. The tribes argue that the chemical, which is washed into bodies of water through storm runoff, poses an "unreasonable threat" to their waters and fisheries. The decision to grant the petition is the first step towards banning the chemical, with tire manufacturers already seeking alternatives. The tribes have long fought to protect the dwindling fish population from various threats, including climate change and pollution.

via USA TODAY|

#chemical-review #environment #native-american-tribes