Distinguishing _ Channa argus

March 27, 2012

Credit: Pennsylvania Sea Grant

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Land

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Garden Snail

Deliberately or accidentally, by the movement of plants and by hobbyists who collect snails, humans have spread the garden snail to temperate and subtropical zones around the world.


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    nopales con huevo

    Prickly Pear

    Fall is here, and the “cactus fig” is in season. Time to plate-up another widespread invader.


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      Sow Thistle

      It’s spring and time to weed. Sow thistle is a delicious invader found throughout the continent.


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        Lamb’s Quarters

        Lamb’s quarters was a popular spring tonic in the South—an early season edible green—but its leaves are good throughout the summer.       Chenopodium album Native range: Described by Linnaeus in 1753, this European native has been transferred throughout much of the world. Because its spread was rarely recorded, C. album‘s native and invasive [...]


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          GarlicMustard1

          Garlic Mustard

            Alliaria petiolata Native range: Europe, Asia, Northwest Africa Invasive range: Much of the Lower 48, Alaska, and Canada. (See map.) Habitat: Moist, shaded soil of floodplains, forests, roadsides, edges of woods, and forest openings. Often dominant in disturbed areas. Description: Biennial herb. First-year plant has a rosette of green leaves close to the ground. [...]


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            Sea

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            Asian Shore Crab

            The first sighting of the Asian shore crab in the United States was at Townsend Inlet, Cape May County, New Jersey, in 1988. Though the source is unknown . . .


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              Periwinkles

              Periwinkle

              The common periwinkle, which first appeared in New England in the 1860s, is now found along the coast wherever there’s hard substrate–rocks, riprap, broken concrete, or docks–from Labrador to . . .


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                Pterois volitans

                Lionfish

                Some say it started in 1992 in Miami when Hurricane Andrew smashed an aquarium tank. Don’t blame the weather, others say; in the mid-nineties, disappointed yet softhearted hobbyists…


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                  chuka wakame

                  Wakame

                    Undaria pinnatifida Native range: Japan Sea Invasive range: Southern California, San Francisco Bay, New Zealand, Australia, Europe, Argentina Habitat: Opportunistic seaweed, can be found on hard substrates including rocky reefs, pylons, buoys, boat hulls, and abalone and bivalve shells. Description: Golden brown seaweed, growing up to nine feet. Forms thick canopy. Reproductive sporophyll in [...]


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                    Kleiner_Taschenkrebs_(Carcinus_maenas)

                    Green Crab

                    Since the green crab was first recorded off southern Massachusetts in 1817, it has been hard to ignore. A few minutes of rock-flipping in Maine can turn up dozens of them, brandishing their claws as they retreat…


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                      Fresh

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                      Common Carp

                      For a bottom-feeder, what is the good life? The common carp isn’t very demanding: any body of water that’s sluggish and murky will do. If the water is clean, and you’ve got corn for bait, try one of these recipes.


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                        Watercress

                          Nasturtium officianale Native Range: Northern Africa, Europe, temperate Asia, and India Invasive Range: In USA: all lower 48 states, except North Dakota. Found in Alaska, Puerto Rico, and the Virgin Islands. Also southern Canada, Sub-Saharan Africa, South America, Australasia, and parts of tropical Asia. Habitat: Common along stream margins, ditches, and other areas with [...]


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                          Crayfish

                            There are numerous invasive crayfish. We include details for the red swamp crayfish (Procambarus clarkii) and the rusty crayfish (Orenectes rusticus). The same recipes can be used for both species–and many other invasive crayfish. Red Swamp Crayfish Native range: Known as Louisiana crayfish, crawdad, and mudbug, Procambarus clarkii is native to the south central [...]


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                            Distinguishing _ Channa argus

                            Northern Snakehead

                            His sister was ailing, and the man in Maryland remembered that, back home in Hong Kong, there was a fish that was considered a delicacy and a restorative. He would make a fish soup…


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                              bullfrog

                              Bullfrog

                              “They live in a wide variety of habitats, colonize new ones readily, and eat everything that fits into their mouths,” says Dr. Peter Moyle of the Center for Watershed Sciences at UC-Davis…


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                                Field Notes

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                                Eat the Invaders Dinner

                                Inspired by the work of the Eat the Invaders project, UVM Dining and the University of Vermont Real Food Working Group are hosting a dinner featuring edible invasive species.


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                                  Invasive Herbs for Herbal Tea

                                  The ingredients for many herbal teas, including lemon balm, mint, and nettles, have become naturalized in the United States. RateTea reviews a few of them here.


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                                    whole_fried_lionfish

                                    Can Markets Handle Invasive Species?

                                    Marketing campaigns are underway to spur demand for the flaky white fillets of lionfish. The Reef Environmental Education Foundation has published a cookbook in an attempt to get people to realize that lionfish is an option for dinner. Whole Foods has hosted “Take a Bite Out of Lionfish”: live filleting and cooking demos and lionfish [...]


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                                      Defeating Invaders by Eating Invaders

                                      In some biology classes, students read about invasive species. Last week, in professor Joe Roman’s course, Marine Ecology and Conservation, his students were eating them. Read more here.


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                                        Invaders on the Rise

                                        During the last 200 years, the number of new invasive species has increased worldwide, with more than a third of all first introductions recorded between 1970 and 2014. More new invasions are expected among all groups of species in the near future, with the exception of mammals and fishes. Read the study here.


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                                          “The moment one gives close attention to anything, even a blade of grass, it becomes a mysterious, awesome, indescribably magnificent world in itself.”

                                          Henry Miller

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