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Showing posts with label fish death. Show all posts
Showing posts with label fish death. Show all posts

Saturday, February 23, 2013

The Watchers - Thousands of dolphins spotted off the coast of San Diego, US

The Watchers - Thousands of dolphins spotted off the coast of San Diego, US:

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Monday, January 02, 2012

20 tons of dead fish wash up on Norway beaches

Overnight, the beach was full of dead herring



- cause of massive fishkill unknown

 

Various theories

No one knows for sure what's happened in the popular hiking area in Nordreisa municipality. However, various theories have been tossed around, explains Jan-Petter Jorgensen (44), who took mass death in sight on the beach with his dog Molly. - People tell that something similar happened in the 80s, and there is speculation among others on the river which flows into the ocean behind a promontory on the site, may have had something to say. Maybe the fish have been caught in the long due, and then died of fresh water? Jorgensen says to Dagbladet. He estimates each individual fish to be of 100-150 grams, and that the total might be about up to 20 tons. Now he's worried about what might happen if no one comes and removing carcasses. - When we talk about an environmental problem, the fish are in full resolution.



- May have been intimidated

- It's hard to say Bastant what's happened here, but the first thing that occurred to me, is that herring may have been frightened upwards of saithe, says Jens Christian Holst, senior researcher at the Institute of Marine Research in Bergen, the Norwegian newspaper Dagbladet. Holst emphasizes that fresh water or currents at the site also may have played a role, if necessary. storm that recently collapsed, the fish may have been downright washed ashore. - Or it could be a combination. 
MYSTERIUM: Hvordan, eller hvorfor, titalls tonn død sild plutselig fyller stranda på Kvænes, er det ingen som har noe definitivt svar på. Her Jan-Petter Jørgensens hund Molly på befaring nyttårsaften. Foto: JAN-PETTER JØRGENSEN
January 2, 2012 – NORWAY – 
(Dagbladet): The inhabitants of resin in Troms could hardly believe their eyes on the morning of New Year's Eve, the beach was a large amount, an estimated tens of tons, dead herring, writes Northern Lights .

Whatever, we want to have samples, if someone has taken a fresh sample and frozen it, we would like to have ruled on the case of illness or not, says the researcher. - How common is it with such mass death? - The does not happen often. Yet there is something we see from time to time, and it is anyway a big event. Should mass death prove to be repeated several times in the same place, we are even more interested in getting the matter investigated, says Holst. • Do you have fresh samples of the dead fish? Contact the Institute at number 55 23 85 00
People say that something similar happened in the 80′s, and there is speculation among others on the river which flows into the ocean behind a promontory on the site, may have had something to do with it. Maybe the fish have been caught in a deprived oxygen environment, and then died of fresh water? Jorgensen estimates each individual fish to be of 100-150 grams, and that the total might be about up to 20 tons. Now he’s worried about what might happen if no one comes and removing carcasses. -Dagbladet 
-translated
contribution Mr. B, Roger Aak
I see that dutchsinse caught this story too.


 
 just uploaded a video:
 
Between Beebe Arkansas (thousands of dead birds) and this Norway story --- its like a repeat of last year only accelerated ..

Here is the link to today's Norway story: TENS OF THOUSANDS of dead fish wash ashore:http://theextinctionprotocol.wordpress.com/2012/01/02/20-tons-of-dead-fish-wash-up-on-norway-beaches-cause-of-massive-fishkill-unknown/
 
 More
 




2012 The Untold Story Click Here


Sunday, March 27, 2011

Thousands dead in Jacksonville fish kill

 Blood cells burst when tainted water is sucked into their gills” 




Golden algae’ is cause of Hanna Park fish deaths, Florida Times-Union, March 23, 2011:
Algae that can rupture blood cells in fish is being blamed for deaths of thousands of fish at a lake in Jacksonville’s Hanna Park. …
[I]t can be deadly for fish, whose blood cells burst when tainted water is sucked into their gills.
[T]he lake is a short distance from the oceanfront…
The fish deaths have some similarity to kills that happened last summer in several parts of the St. Johns. In those cases, redfish and some other species also died after blood cells ruptured, a process called hemolysis.

'Golden algae' is cause of Hanna Park fish deaths

A lake remains open to anglers despite the bloom.



Algae that can rupture blood cells in fish is being blamed for deaths of thousands of fish at a lake in Jacksonville's Hanna Park.
Tests completed Tuesday found a single liter of water from Hanna Lake could hold 3.6 million cells of Prymnesium parvum, an organism dubbed golden algae because of the unusual discoloration it causes.


The bloom apparently started about a week and a half ago, said Dana Morton, a city biologist who examined the lake looking for other possible reasons for the fish kills.
The algae don't pose any risk to people or other mammals, said Jennifer Wolny, a scientist who studies harmful algae at the Florida Fish and Wildlife Conservation Commission.


But it can be deadly for fish, whose blood cells burst when tainted water is sucked into their gills.
Largemouth bass, crappie, catfish, bream and mullet have been killed at Hanna Lake, said Carli Segelson, a conservation commission spokeswoman.
Park employees have been cleaning up remains and left the lake open to anglers, said Ben Pennymon, a city park system spokesman.


A series of "finger ponds" around the lake haven't shown signs of the fish kill.
Golden algae live in lakes and ponds in many countries but have rarely been noticed locally. In 14 years of water testing, the St. Johns River Water Management District has never documented a golden algae bloom, agency spokeswoman Teresa Monson said.


Morton said the bloom gave parts of the lake an olive or "pea soup" appearance, cloudy but without clumps or fibers common to some algae.
The 40-acre lake is in the western part of Hanna Park, which 

sits just south of Mayport Naval Station.
Although the lake is a short distance from the oceanfront, it empties into a waterway that flows west to the Intracoastal 

Waterway, said Matt Gardner, a fisheries biologist for the conservation commission. He noted Intracoastal water sometimes flows upstream into the lake, making water there saltier and possibly affecting the algae, which favors brackish conditions.

Wolny said springtime is a good season for golden algae, which grows better when water is still somewhat cool. With the high levels found this week, she said, some part of the bloom might linger for a while.

The fish deaths have some similarity to kills that happened last summer in several parts of the St. Johns. In those cases, redfish and some other species also died after blood cells ruptured, a process called hemolysis.


Months of follow-up study by scientists also focused on algae blooms as a factor, but tests in those areas found different kinds of algae.


Call Steve at (904) 359-4263.






4 comments to Thousands dead in Jacksonville fish kill — "Blood cells burst when tainted water is sucked into their gills"






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