慧/核

Millions of dead anchovies swamp L.A.-area marina

I T69 U 2011. 3. 9. 16:50

neosporin (matthew_****)                                                                                                                                    2011.03.09 04:38

 

 

지금 속보로 나오기에 이게 무슨 일인가 하고 봤더니 제가 어려서 자주 가던 남가주 레돈도 바닷가에 이런일이 벌어졌습니다.

http://content.usatoday.com/communities/ondeadline/post/2011/03/millions-of-dead-fish-float-to-surface-at-california-beach/1  (뉴스동영상)

 

http://latimesblogs.latimes.com/lanow/2011/03/millions-of-fish-likely-died-of-oxygen-depletion-not-pollution-redondo-beach-officials-say.html

 

http://www.reuters.com/article/2011/03/08/us-fish-dieoff-idUSTRE7275EZ20110308?feedType=RSS&feedName=domesticNews

 

앤초비라고 멸치과 생선인데 예전에는 주로 피자에 잘 넣어 먹던 생선입니다.  죽은 사체가 너무 많아 배가 움직이지 못할 정도랍니다.

수백, 수천, 수만도 아니고, 수백만 마리.... 수백만 마리....

적색조류를 피하다 때죽음을 당한것 같다는 추측입니다. 

 

 

 

Mar 08, 2011

Millions of dead fish float to surface at California harbor

01:25 PM

 

 

 

 

Millions of dead fish, mainly anchovies, washed up at a harbor near Redondo Beach, Calif., today, preventing many boaters from leaving the area.

KTLA video shows the dead fish covering the water's surface at King Harbor.

Staci Gabrielli, marine coordinator for King Harbor Marina says the fish apparently swam into the harbor to escape a red tide, a naturally occurring event that can poison fish or starve them of oxygen, the Associated Press reports.

Gabrielli says high winds apparently kept the fish from leaving the harbor and they all crushed up against the harbor wall, where they used up the oxygen and suffocated.

 

 

 

 

 

 

Massive fish die-off likely due to oxygen depletion, not pollution, Redondo Beach officials say [Updated]

Dead Fish Mystery

 

Redondo Beach officials said initial assessments suggest oxygen depletion in the King Harbor basins caused the massive fish die-off.

City Manager Bill Workman said city officials with the help of marine experts would help determine if there was any environmental issue involved. Tests are now being performed on the water as officials begin removing the dead fish, which city officials estimated to be in the millions.

“There are no visible signs of any toxins that might have caused [the die-off] and our early assessment is that this was oxygen depletion,” Workman said. “This is similar to what we experienced five years ago but that was distinctly a red tide event but there’s no discoloration of the water, no associated foaming in the waves, Workman said. “There are no oil slicks or leaking of substances into the water.”

Workman noted that the harbor had been teeming in recent weeks with bait fish that even after their deaths “had no signs of degradation.”

“It looks like what happens to goldfish when you don’t change the water in the tank, mouth open and belly up,” Workman said.

Although he said it did not appear that the die-off was due to a red tide, the city diverted all of its city crews to the harbor to help with the response to the fish kill by bringing in dumpsters and nets.

Workman also said the city was preparing to call in volunteers to assist with the cleanup. In addition, he said, marine biologists that deal with red tide monitoring also came to harbor to assist, including from USC's marine biology department.

Fish, including anchovies, sardines and mackerel, were floating lifeless in Basins 1 and 2 of the north side of King Harbor Marina.

"There’s basically fish everywhere you go in the harbor," said the harbor's assistant manager, Jason McMullin, who added that there were reports that a red tide may have driven the fish into the harbor in massive numbers, where they died because of limited oxygen.

[Updated at 11:35 a.m.: Marine biologists from USC have been dispatched to King Harbor to test for elevated levels of dissolved oxygen, a key indicator of whether the cause of the fish die-off was a harmful algal bloom.

USC installed oxygen sensors in the harbor after a mass fish die-off in 2005, and since then researchers have been monitoring the harbor to better understand what happened, said biological sciences professor David Caron.

When there is a preponderance of algae in a single area, they can consume massive amounts of oxygen in the water and can deprive other sea creatures of the air they need to live. But algae can also produce toxins that can kill marine life.

“What we're trying to tease apart is whether it's a consequence of algal buildup, a fish buildup or something toxic in the water,” Caron said.

They plan to check the monitoring devices Tuesday and later use robotic vehicles to probe the harbor for other clues about the cause of the fish kill, Caron said.]

 

 

 

 

 

 LOS ANGELES | Tue Mar 8, 2011 1:50pm EST

 

 

 

(Reuters) - Millions of anchovies washed up dead early on Tuesday in the harbor area of Redondo Beach, California, just south of Los Angeles, puzzling authorities and triggering a cleanup effort.

Local television news footage showed the mass of dead fish, said by a police spokesman to be about a foot deep on the surface, choking the waters in and around dozens of private boat slips in the King Harbor Marina.

"We're having millions of anchovies die off in our harbor," Redondo Beach police Sergeant Phil Keenan told Reuters in a telephone interview. "At this point it's an unknown reason."

He said one possible explanation was that too many of the fish had congregated into a relatively small area, exhausting the water's oxygen supply, "but that's still to be determined."

Anchovies are prey for bigger fish and marine mammals, so large numbers may have swarmed into the harbor from deeper waters seeking shelter, he said.

"The issue now is cleanup because we have tons and tons of dead fish rotting and purifying, which obviously creates hazardous material," Keenan said. "We're in the process of figuring out what were going to do."

Trudy Padilla, the marina's tenant services coordinator, said the dead fish suddenly began showing up overnight, and that one end of the marina has been blocked off as cleanup operations get organized.

She said the smell of decay has not become so strong yet, "but it's going to if they don't clean up the fish."

King Harbor Marina provides 850 boat slips to private vessels.

(Writing and reporting by Steve Gorman and Dan Whitcomb; Editing by Jerry Norton)