Showing posts with label oil spill. Show all posts
Showing posts with label oil spill. Show all posts
Posted by
linda
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| Stranded spinner dolphin. Credit: qnr via Flickr. |
The latest NOAA report on unusual strandings of whales and dolphins in the northern Gulf of Mexico finds they're still dying at twice the normal rate 18 months after BP's Deepwater Horizon disaster.
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| Map of strandings in relation to Deepwater Horizon well. Click for larger version. Credit: NOAA. |
Bottlenose dolphins are shown as circles and other species as squares. Premature, stillborn, or neonatal bottlenose dolphins (with actual or estimated lengths of less than 115 cm/45 inches) are shown as a circle with a black dot inside.
Pink points mark the most recent week of data. Green points mark are all other cases since 1 January 2011.
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| All stranded cetaceans (dolphins and whales) from Franklin County, FL to the Texas/ Louisiana border. Credit: NOAA. |
Here you can see how the numbers of strandings have not yet stabilized or even begun to decline. In some cases they're still growing.
The magenta-colored bars mark strandings per month in the year 2010. The ivory-colored bars mark strandings per month so far this year.
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| Credit: NOAA. |
In my Mother Jones article The BP Cover-Up last year, I wrote about the kind of long-term problems the Gulf might face not just from oil but from extreme quantities of oil in very deep water, as well as from chemical dispersant, including dispersant injected into very deep water.
Sadly, it seems that cetaceans—past, present, and future—may be bearing some of those burdens.
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| Beached sperm whale. Credit: Rachel Denny Clow, Corpus Christi Caller-Times/AP. |
You might be interested in these other posts describing other scientific findings in the wake of last year's Gulf catastrophe:
Posted by
linda
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The New Zealand Herald reports the country is facing one of its worst ecological disasters as the stricken tanker Rena is now in danger of breaking apart. The ship grounded 20 kilometers/12 miles off Tauranga Harbour, near the Bay of Plenty, on the North Island, after striking a reef on Wednesday.
UPDATE: 22:07 GMT, 9 OCT 2011: New Zealand's MetService has issued a severe weather watch for the Bay of Plenty, with strong northeasterly gusts and heavy rains possible in the region today [Monday, New Zealand time]. Officials are advising that oil will start reaching shore at Bay of Plenty's Papamoa beach on Wednesday. Questions remain as to why the large ship hit a well-documented reef in calm waters.
The Rena is carrying 1,700 cubic meters/450,000 gallons of heavy fuel oil. The race is onto siphon off—or at least contain—the oil before the ship sinks. From the New Zealand Herald:
More resources and special equipment [are] likely to be needed during the operation. An offshore boom barrier device to ring-fence the oil—measuring about 1250m [three-quarters of a mile]—was being transported from Australia along with three heavy skimmers to scoop it from the water. A salvage architect was due to arrive from Holland, with further expert help from the Australian Maritime Safety Authority also on their way.
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| Site of the grounding of the MV Rena, off the North Island of New Zealand. Satellite image courtesy of NASA/JPL/NGA. |
Meanwhile, heavier weather is bearing down on New Zealand, including a forecast for rain and strengthening northeasterly winds on Monday—when the pumping operation is slated to begin.
Most worrisome, it's spring in the southern hemisphere, and many seabirds along New Zealand's coast are breeding. This is prime egg-laying/chick-hatching season for little blue penguins (called fairy penguins in Australia), who come ashore en masse each dusk to exchange incubation duties or feed their chick, before departing again en masse before dawn to hunt.
(The sound of little blue penguins calling at dusk in New Zealand. Credit: Benchill (Own work) [GFDL or CC-BY-3.0], via Wikimedia Commons.)
So far, seven oiled birds—five little blue penguins and two cormorants—have been taken to a wildlife center at Tauranga Harbour. The New Zealand Herald reports:
"It's a very difficult situation and the reality is that we are going to see a significant oil spill," [Transport Minister Steven] Joyce said. "So far it's been reasonably small, so I think everybody's preparing for the worst. We are dealing with a very serious situation ... and I don't think anybody is under any illusions."
If you haven't met Cookie, the 'ticklish' little blue/fairy penguin at the Cincinnati Zoo, here he is, a sweet ambassador for his kind.
