Archive for What’s Hot

Regional boat inspections are inconvenient? This is true, but…

About a month ago, I attended an open house for the proposed Wright County Regional AIS Inspection Program. This proposal is the newest twist in our state’s efforts to protect Minnesota lakes from aquatic invasive species. What’s new is that this proposal will require boaters to travel to a regional inspection site before they are […]

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Escaped Atlantic Salmon Reported 250 KM North of Collapsed Fish Farm

Officials say the non-native farmed fish have travelled further than expected in the month since the spill Escaped farmed Atlantic salmon have swum as far as 250 kilometres north of Washington state’s San Juan Islands, where they broke free from a ruptured pen last month containing an estimated 305,000 fish. The non-native species of salmon […]

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Invasive plants in South Africa – Plants that suffocate life

In recent weeks The Courier has run a series of articles on invasive plant species and their effect on indigenous ecosystems. For the final installment we spoke to Prinavin Naidu, Stanger local and MSc (Master of Science) candidate from the Centre for Biological Control at Rhodes University, about invasive aquatic plants strangling SA’s freshwater ecosystems.  Click on […]

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Washington State’s Great Salmon Spill and the Environmental Perils of Fish Farming

Just after the thrill of the total solar eclipse, a troubling nature story emerged from northwestern Washington State. On August 22nd, Cooke Aquaculture, a multibillion-dollar seafood company, reported that, three days earlier, extreme tides coinciding with the eclipse had torn apart its enormous salmon farm off Cypress Island, a teal idyll near the college town of Bellingham. […]

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Sucking Unwanted Fish Out of Minnesota’s Lakes and Rivers May Soon Be a Reality

Imagine a tube that could suck unwanted fish out of Minnesota’s lakes and rivers. It seems like a bizarre idea. But you might soon see it in practice in the Twin Cities. On Wednesday, the Aquatic Invasive Species Research Center at the University of Minnesota showcased its research. This is the only time each year all scientists […]

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Latest Lake Erie invader provides more evidence that its time for a ban

One of the biggest threats to Lake Erie fisheries has materialized. Eggs from the infamous grass carp have been found in a Lake Erie tributary. So what else is new? These fish are just another in what seems to be an ever-increasing assault on our native plants and animals by invaders from other parts of […]

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Invaders in the Arctic – How ships and climate change are bringing strange species to Nunavut

As higher temperatures proliferate in Canada’s Arctic, scientists have begun to notice signs of encroaching species from warmer climes. As Ivan Semeniuk reports, the race is on for them to establish a baseline while they still can. Click on the following paragraph to access the full story. Unlike the easy-to-spot passengers from the Crystal Serenity, the visitors […]

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Canadian MPs demand action on mussels

The federal government is being told to take invasive mussels seriously. Conservative MPs Mel Arnold and Dan Albas have sent a letter about quagga and zebra mussels to Fisheries Minister Dominic Leblanc, Public Safety Minister Ralph Goodale and Environment Minister Catherine McKenna. “We are calling on the government to recognize the ecological and economic threats […]

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Analysis confirms grass carp eggs in Lake Erie tributary

Scientists say they’ve confirmed the discovery of grass carp eggs in a tributary of Lake Erie. Grass carp are among four species of Asian carp that pose a threat to the Great Lakes. The most feared are silver and bighead carp, which eat plankton and could destabilize food chains. But grass carp are also a […]

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