In Puebla, a weather phenomenon caused the death of thousands of fish in the lake of Valsequillo.
“Much water It flutters and start dating fish, everybody is there on the shore and we believe that is lack of oxygen,” said Enrique Gómez, settler.
The fish of the carp and tilapia, floating dead varieties from the area of the panga in San Baltazar Tétela up to the dam Maximino Avila Camacho.
“This is a cyclical phenomenon, appeared I remember in October last year, called thermocline and consisting of a sudden warming of the water layers also makes a sharp reduction in the amounts of oxygen which kills fish, “said Alberto Jimenez Merino, delegate of SAGARPA.
“There is the thick edge. If every year is, is temperature change, that is,” said Ramon Aguilar, fisherman.
In the area known as the Oasis, a foul odor is recorded due to the decomposition of dead fish that have not yet been removed from the lake.
Residents claim that this phenomenon is typical of this time of year, however authorities and conducted an investigation to rule that it is some kind of contamination in the water.
Valsequillo Lake is one of the major bodies of water in Puebla, used for irrigation, fishing and recreation.
The National Aquatics Research Agency has commenced an investigation with regard to the sudden death of fish in the Sampur, Ralpalam and Kattankudy seas.
The agency stated that a team of officials have already been dispatched to the area to investigate the mysterious deaths. The mass deaths of fish at the Ralpalam sea started to occur on Friday.
The deaths have prompted the Fisheries Department to issue a temporary ban on fishing in these seas.
Meanwhile, according to our correspondent, death of fish has also been reported in the Puttalam and Kattankudy seas.
Hundreds of dead fish have been found since Wednesday on the banks of Roubion in Montelimar. A disaster for the Drôme Fishing Federation which had invested specifically in the repopulation of this river. An unknown sources of pollution.
Eight years of dashed resettlement policy … Fishermen in Drôme who had their habits on the banks of Roubion well have had to face the facts. Several hundred pounds of fish died following a pollution whose origin has not yet formally established. Fisheries Federation is devastated and she will file a complaint: She had invested heavily in recent years by reintroducing the noble fish, perch, carp and pike in this stretch of water.
The prefect of the Drome asked the National Rhone Company to conduct a drop of water to reduce pollution of the river. But fishing is obviously forbidden for now.
THE Environment and Sustainable Development Directorate have explained they can’t explain why there was a major fish kill event in Gungahlin’s Yerrabi Pond.
Test samples analysed by experts in Sydney have ruled out a virus as the cause of a significant number of fish deaths in Yerrabi Pond over the past month, Dr Lisa Evans, Aquatic Ecologist from the Environment and Planning Directorate has confirmed today.
“Since late September the ACT Government has been undertaking a range of tests to establish why a significant number of fish were found dead in Yerrabi Pond,” Dr Evans said.
“A range of water samples were taken by the Environment Protection Authority to help determine the cause of the deaths, but all results returned with readings in the normal ranges.
“The ACT Government has also been working with experts from the University of Sydney to examine other possible causes of the deaths, as more dead fish were discovered in early October.
“Test results from the University of Sydney have ruled out a number of fish viruses, and it is believed that the cause could be linked to a short term dissolved oxygen shortage associated with nutrient runoff from a recent storm, warmer water temperatures and significant amounts of filamentous algae in the pond. Breeding stress at this time of year could also be a contributing factor in the deaths.
“This is the first time that a Murray Cod fish kill has been observed in Yerrabi Pond in the 14 years that the pond has been stocked with these fish,” Dr Evans said.
The recent fish deaths are a timely reminder to Canberra residents that fish diseases can be transferred by people dumping unwanted pet fish into our waterways and illegally moving fish between waterways.
Scientists and officers from several government departments, educational institutions and volunteer groups were on the scene Thursday morning as the last two whales were lead back out to sea.
The whales were discovered by a woman walking her dog Tuesday afternoon. A large male had beached himself in Sunbury Cove, between St. Nicholas and Linkletter, while eight females and juveniles swam around him.
Subject To Change
Depth: 228 km
Distances: 148km (92mi) WNW of Havelu, Tonga
149km (93mi) WNW of Nuku`alofa, Tonga
600km (373mi) ESE of Suva, Fiji
648km (403mi) SE of Lambasa, Fiji
713km (443mi) ESE of Nadi, Fiji