Invasive Species

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When people sail the sea, marine organisms tag along. If carried long distances, these hitchhikers can invade and disrupt ecosystems far from their natural homes, pushing out the local species. Some invaders catch a...
During the summer of 1998, scientists at the Virginia Institute of Marine...
The majestic and highly predatory red lionfish ( Pterois volitans ) , native to...
Alaska’s pristine coastline is ripe for an influx of invasive marine species...

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This ctenophore (a stingless jellyfish-like animal) is native to the east coast of North and South America. In 1982, it was discovered in the Black Sea, where it was transported by ballast water . It subsequently spread to the...
A strain of this green seaweed, native to the Indian and Pacific Oceans,...
The spotfin lionfish ( Pterois antennata ), with venomous spines extended,...

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Regardless of what continent you live on, the waters that surround it are home to marine invaders. The ocean is teeming with...

The Ocean Blog

If you want to study invasive species in the ocean, the Panama Canal offers a lot to explore. The ships passing through can inadvertently transport plants, animals, and even parasites from the...
A strain of this green seaweed, native to the Indian and Pacific Oceans, escaped public and private aquariums in California, Japan, Australia, and Monaco. It has spread widely in the Mediterranean,...
Around 100 million years ago, grass from land adapted to live and reproduce while submerged in seawater—the modern-day seagrasses. This sea invasion by land plants happened four separate times,...
This photograph, much like Van Gogh’s Starry Night is awhirl with the colors and swishes of hundreds of fish. The focal point, however, is the lionfish. Lionfish ( Pterois antennata ) have been known...
The European green crab ( Carcinus maenas ) has spread far beyond its native continent, to waters off North and South America, Asia and Australia. It's a voracious eater and poses a nuisance to...
Alaska’s pristine coastline is ripe for an influx of invasive marine species such as the European green crab and the rough periwinkle (an Atlantic sea snail), warns a new study by a team of...
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