Fishing groups and water suppliers fighting the Biden administration’s proposed drought rules for California’s water system told a federal judge Friday the emergency plans won’t stop the demise of endangered salmon.

With California trudging through another disappointingly dry winter, the federal government and state officials have agreed upon a set of temporary rules they claim are necessary to preserve enough cold water on the Sacramento River for Chinook salmon this spring and summer. The rules call for new water temperature targets and improved collaboration between federal and state officials on the management of California’s two main water conveyance systems.