by Tanada » Sun 31 Jan 2016, 17:50:24
The latest expansion just completed is being blamed for increasing the speed of migration for Red Sea species into the Mediterranean basin. Personally I doubt it makes a dimes worth of difference, the invasion started close to 150 years ago so decrying it now is truly a case of closing the barn door after the horse has fled. More at link below the quote.
$this->bbcode_second_pass_quote('', 'A') rising flood of invasive marine species flowing through the Suez Canal.
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On Aug. 6, 2015, over the objections of environmentalists and the reservations of many economists, the canal’s latest expansion opened to shipping. The new 22-mile channel will double the canal’s capacity, allowing 97 ships to pass through each day. It also opens a wider path for invasive species from the Indian and Pacific Oceans to flood through the Red Sea into the Mediterranean.
Once they’re in, there’s no way to get them out, and the changes they bring are irreversible. Israeli scientists have identified more than 450 alien species of fish, invertebrates and algae that are not part of the Mediterranean’s natural ecosystem. Several pose public health hazards, while others threaten fisheries and tourism and denude underwater ecosystems, greatly reducing biodiversity.
Egyptian authorities say the $8.5 billion project will reduce bottlenecks and increase toll revenue from $5.3 billion to $13.2 billion a year by 2023. But these benefits come at the cost of continuing environmental degradation. “The recent doubling of the canal will decimate coastal ecosystems with dire implications for the regional economy and human health. We can’t continue to overlook this threat,” warns Dr. Bella Galil, a senior scientist at Israel’s National Institute of Oceanography.
It can take generations, she says, for an alien species to expand its range. The presence of Red Sea fish in the Levant Basin, for example, was not recorded until 1902, more than three decades after the canal first opened in 1869. Subsequent waves have followed major canal expansions in 1980 and in 2010. The eastern Mediterranean, mere miles from the canal’s mouth, has been hardest hit, and experts from Turkey, Cyprus, Greece, Israel and Lebanon say this invasion has drastically altered fisheries.
http://www.nytimes.com/2016/01/30/opini ... .html?_r=1