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Tag Archive: Fisheries


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Discovery News

El Nino May Bring Civil Unrest This Winter

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When an unusually powerful El Niño struck in 1997, civil conflicts erupted across the tropics, from Sudan to Peru — as floods, droughts and fires devastated crops, fisheries and livelihoods.

It wasn’t an isolated case, suggests growing evidence that links El Niño’s extreme weather with a spike in violent conflicts in tropical regions. As one of the strongest El Niño events in recorded history gains steam this fall, some experts are warning of the potential for more unrest to come – and the urgent need to take preventive action.

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Some fairly nutty and violent weather can occur during El Nino years.
DCI

“Half the world’s population is exposed to a higher risk of violence this year,” says Solomon Hsiang, professor of public policy at Berkeley. “Now that we know what to expect, we shouldn’t necessarily sit back and watch sparks fly. There are a lot of things we can do.”

Civilizations That Withered in Drought

Collapses of entire civilizations have been linked to climate shifts, with examples that go back centuries. The Little Ice Age in the mid-1600s, for example, has been blamed for widespread wars and political crises that occurred around much of the world at the time.

 

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Earth Watch Report – Biological Hazards

English: The biological hazard risk symbol on ...

English: The biological hazard risk symbol on yellow background (Photo credit: Wikipedia)

 

English: View of Safety Bay, Western Australia...

English: View of Safety Bay, Western Australia, looking from south to north (Photo credit: Wikipedia)

 

 

 

 

 

 

 

 

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Today Biological Hazard Australia State of Western Australia, [Safety Bay] Damage level
Details

 

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Biological Hazard in Australia on Thursday, 13 December, 2012 at 04:34 (04:34 AM) UTC.

 


 

 

Description
It could be some time before Fisheries authorities know what killed hundreds of fish and crabs in Safety Bay this week but early indications point to low oxygen levels. Hundreds of fish including herring and flounder, blue manner crabs and eels were found dead over several days on the beach near Tern Island and the Bent Street boat ramp. Many concerned readers contacted the Courier over the weekend after spotting the dead marine life. Department of Fisheries spokesman on fish health Paul Hillier said the department had visited the site several times this week, but had been unable to find suitable samples of fish to test – with most too decayed. Mr Hillier said it was too early to confirm what had caused the deaths with water samples also being tested. “From the reports received and observations of the Fisheries officers, it appears that excess weed in the water system has probably depleted the dissolved oxygen, which may have caused the fish kill,” he said. “But the fish health researchers can’t confirm that conclusively until the appropriate testing is completed.”
Biohazard name: Mass. Die-off (fishes)
Biohazard level: 1/4 Low
Biohazard desc.: Bacteria and viruses including Bacillus subtilis, canine hepatitis, Escherichia coli, varicella (chicken pox), as well as some cell cultures and non-infectious bacteria. At this level precautions against the biohazardous materials in question are minimal, most likely involving gloves and some sort of facial protection. Usually, contaminated materials are left in open (but separately indicated) waste receptacles. Decontamination procedures for this level are similar in most respects to modern precautions against everyday viruses (i.e.: washing one’s hands with anti-bacterial soap, washing all exposed surfaces of the lab with disinfectants, etc). In a lab environment, all materials used for cell and/or bacteria cultures are decontaminated via autoclave.
Symptoms:
Status: confirmed

 

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