Tag: invasive species

  • Michael Fitzgerald: Worst. Invasive. Species. Ever.

    Michael Fitzgerald: Worst. Invasive. Species. Ever.

    Nutrias were first discovered in the marshes of San Joaquin County in 2017. (Photo courtesy of Greg Gerstenberg/California Department of Fish and Wildlife) There’s news from the front lines of the battle against the nutria, the weird invasive “giant swamp rat” that threatens to overrun and destroy the Delta: We’re losing.  The California Department of Fish…

  • A ‘Devil’ Seaweed Is Spreading Inside Hawaiʻi’s Most Protected Place

    A ‘Devil’ Seaweed Is Spreading Inside Hawaiʻi’s Most Protected Place

    An invasive algae has wrecked huge sections of reef in Papahānaumokuākea Marine National Monument. Scientists are racing to find out what it is, where it came from and whether anything can stop it. Papahānaumokuākea — Manawai, also known as Pearl and Hermes Atoll, is where scientists found an invasive seaweed in 2019 smothering reefs. It’s…

  • The Uphill Battle of Removing Invasive Aquatic Vegetation

    The Uphill Battle of Removing Invasive Aquatic Vegetation

    Water hyacinth (Eichhornia crassipes). Sisyphus of the Slough Before the turn of the 21st century, the Sacramento-San Joaquin River Delta was dubbed one of the most biologically invaded estuaries in the world, with non-native plants at the root of the issue. Over 25 years later, the battle against invasive aquatic vegetation in the Delta continues at an…

  • Meet the underwater gardeners that scrub Imperial County’s water canals

    Meet the underwater gardeners that scrub Imperial County’s water canals

    Photo: IID Operations Coordinator Pablo Cortez, left, holds an adult grass carp while Tony Perez, a colleague, collects the fish’s eggs during spawning season at the Imperial Irrigation District’s grass carp hatchery in El Centro in Imperial County on May 7, 2024. As summer approaches, the Imperial Irrigation District is gearing up for another battle…

  • Cocopah Tribe: habitat restoration along the Colorado River to address climate change

    Cocopah Tribe: habitat restoration along the Colorado River to address climate change

    Map: Tribe will restore areas along the Colorado River to address climate change. The Cocopah Tribe will work on riparian areas with money from several federal sources and private funders. The Cocopah Tribe and two other Arizona tribal communities are working with new money and tools to address climate change after receiving grants from the…