1500s Water lettuce, Pistia stratiotes, introduced, perhaps in the ballast water of ships from Spain or South America. 1539 Feral pigs, Sus scrofa, begin with the introduction of Spanish domestic stock in Florida by Hernando de Soto; whether the release was accidental or intentional is unknown. 1600s Scots pine, Pinus sylvestris, native to Europe and [...]
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Blue Plate Special Garden Snail
Summer is coming to a close. It’s time to start harvesting in the garden–and gathering the garden snails.
Fall is here, and the “cactus fig” is in season. Time to plate-up another widespread invader.
It’s spring and time to weed. Sow thistle is a delicious invader found throughout the continent.
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 [...]
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. [...]
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 . . .
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…
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 [...]
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 . . .
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…
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 [...]
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 [...]
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…
“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…
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. One catching sewage or…
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.
Burn the Invaders
Marabu is an invasive plant that has taken over much of Cuba’s abandoned farm lands. Artisinal charcoal from the tree is now the first legal export from Cuba to the United States in more than 50 years. Read more about the plan here.
Pests for Dinner
New Scientist reports on the annual dinner at the Explorers Club in New York. Gene Rurka, the club’s resident chef, served grilled lionfish, Asian carp sushi, and iguana meatballs with a plum dipping sauce. An actual iguana splayed out on a bed of greens made a feral centerpiece. “I see this as a way of [...]
Bun Lai, Champion of Change
ETI’s colleague and friend, Bun Lai, is named a White House Champion of Change. His restaurant, Miya’s Sushi, in New Haven, offers the world’s only invasive species menu, featuring dishes made of foraged ingredients that are threatening to the region’s indigenous species. Read more about Bun and the rest of the sustainable seafood champions here.
Preventing the Spread of Invasives by Boats
Boating season is picking up. To protect a body of water from an invasive species transfer, stop by a boat washing station to clean the exterior of your boat, drain all water from ballast tanks, and then dry it to kill any unseen hitchhikers.
“They’re utter destruction is what they are.”