This weeks article looks at the common bream, a freshwater fish native to part of Europe and Western Asia, a species that was deliberately introduced to improve angling stocks.
This weeks article looks at a species considered to be one of the most potentially damaging to enter Western Europe.
This week’s article looks at the Faucet Snail – a freshwater species native to Europe. The species was first recorded outside of its native habitat, in the Great Lakes, in the 1870’s.
An astounding number of invasive species have established populations in the Mediterranean region, with an estimated introduction of one new species every four weeks for the past five years. This weeks article looks at the species regarded as being the most invasive decapod to enter the Mediterranean – the percnon gibbesi crab. Native to the west and east coast of America and the east coast of the Atlantic, the species is a relatively new arrival to the Mediterranean, having first been found in Sicily in 1999. It has subsequently spread to Greece and Turkey. Transportation via ballast water is a …
Five years have passed since the magnitude 9 earthquake struck Japan, unleashing a savage 133-foot high tsunami which claimed the lives of 16,000 people. Upon its retreat, the giant surge of water carried an estimated 5 million tons of debris out to sea – including Japanese docks, ships and household items, which are still arriving along the Pacific coast of the US and Canada five years later.
This weeks article looks at the blue-green algae known as cyanobacteria. Cyanobacteriea is a type of photosynthetic bacteria which can be found in almost every terrestrial and aquatic habitat on earth. Though not an invasive species strictly speaking, they can be considered a particularly troublesome side effect of other invasive species.
Perhaps unsurprisingly, these fish were once popular as pets. However, their destructive potential was overlooked because of their beauty and the spread of the lionfish populations beyond their native range is now considered to be one of the worst marine invasions ever.
This weeks invader, commonly known as the Japanese Skeleton Shrimp, is native to the waters of northeast Asia. It was first reported outside of its native habitat in the 1970’s around the Pacific and Atlantic coasts of North America, and can now commonly be found in North America, Western Europe and more recently in New Zealand.
The United States Coast Guard (USCG) has denied appeals filed by four UV based ballast water treatment (BWT) manufacturers to allow the Most Probable Number (MPN) analysis method in USCG Type Approval testing.
This weeks invader, more commonly referred to as Dead Mans Fingers, is native to the Pacific Ocean around Japan and Korea. However it was first found in Ireland in 1808, and 30 years later in Scotland. It made an appearance on the shores of the Netherlands just before 1900 and can now be found throughout Europe and along the east coast of the US, from the Gulf of St Lawrence all the way to North Carolina. It is not entirely clear how the species came to travel so far, but it is thought that fouling of ships hulls played a …