Tonka
Well-known member
http://www.latercera.com/noticia/na...ces-en-desembocadura-del-lago-vichuquen.shtml
Spanish-English translation
Investigating massive fish kills in the lake mouth Vichuqu?n, Chile
Phenomenon has occurred in previous years. Lack of oxygen in the water could be the cause.
Paula by Paula Riquelme Riquelme - 15/05/2012 - 00:00
Hundreds of dead fish, mostly grunts, silversides smooth and some are seen floating along the mouth of Lake Vichuqu?n, a couple of kilometers before the sand bar that divides the lake and the sea, in Region VII.
Luis Gonzalez, manager of the Laguna Torca Reserve, located along the lake, reported that on May 9 a group of children saw dozens of dead fish in the estuary, and with every passing day, has increased the number. The incident was reported on Friday by police to the Attorney General and Attorney Joseph Licant?n Alca?no prosecution requested the Maule Health Service and the Environmental Crimes Squad of the PDI, whose officials take samples today.
Locals agree that similar phenomena have been seen before, especially in drought years. In fact, in October the prosecution investigated the deaths of dozens of fish, and concluded that there was no involvement of third parties or pollutants.
Yesterday, the marine biologist Polin Villegas, who works for Vichuqu?n Country Service, visited the site and found, in preliminary terms, which shows that "the water presents a process of anoxia (lack of oxygen) in the lake system, no sediment putrefaction and mud in the fish could have been affected by it. "
He added that "we think might be due to the lack of exchange of lake water with seawater, following a barrier that exists at the mouth, which has not been opened since September (...). The lake needs this water exchange to renew the amounts of oxygen and nutrients. "
Meanwhile, the mayor of Vichuqu?n, Roman Pavez, said: "I fear that the lack of oxygen in the water and the presence of dead fish can generate bacteria that affect the population. Also, anything that affects wildlife directly affects tourism. " Therefore, the mayor contacted government officials in order to "rapidly find a solution to this sand barrier which prevents the replacement of water."
Spanish-English translation
Investigating massive fish kills in the lake mouth Vichuqu?n, Chile
Phenomenon has occurred in previous years. Lack of oxygen in the water could be the cause.
Paula by Paula Riquelme Riquelme - 15/05/2012 - 00:00
Hundreds of dead fish, mostly grunts, silversides smooth and some are seen floating along the mouth of Lake Vichuqu?n, a couple of kilometers before the sand bar that divides the lake and the sea, in Region VII.
Luis Gonzalez, manager of the Laguna Torca Reserve, located along the lake, reported that on May 9 a group of children saw dozens of dead fish in the estuary, and with every passing day, has increased the number. The incident was reported on Friday by police to the Attorney General and Attorney Joseph Licant?n Alca?no prosecution requested the Maule Health Service and the Environmental Crimes Squad of the PDI, whose officials take samples today.
Locals agree that similar phenomena have been seen before, especially in drought years. In fact, in October the prosecution investigated the deaths of dozens of fish, and concluded that there was no involvement of third parties or pollutants.
Yesterday, the marine biologist Polin Villegas, who works for Vichuqu?n Country Service, visited the site and found, in preliminary terms, which shows that "the water presents a process of anoxia (lack of oxygen) in the lake system, no sediment putrefaction and mud in the fish could have been affected by it. "
He added that "we think might be due to the lack of exchange of lake water with seawater, following a barrier that exists at the mouth, which has not been opened since September (...). The lake needs this water exchange to renew the amounts of oxygen and nutrients. "
Meanwhile, the mayor of Vichuqu?n, Roman Pavez, said: "I fear that the lack of oxygen in the water and the presence of dead fish can generate bacteria that affect the population. Also, anything that affects wildlife directly affects tourism. " Therefore, the mayor contacted government officials in order to "rapidly find a solution to this sand barrier which prevents the replacement of water."