Climate change makes Lake Tanganyika warmest in over a century

London, May 18 (ANI): Lake Tanganyika, the second-oldest and second-deepest lake in the world, has recorded unprecedented high temperatures during the last 100 years.

Situated in East Africa, the lake’s surface waters are the warmest on record, according to geologists.

This will inevitably affect fish stock and consequently, human life amounting to 10 million, around the area.

Up to 200,000 tons of sardines and four other fish species are harvested annually from Lake Tanganyika.

“This result is in addition to those from other African lakes showing that changes in regional climate have a significant impact on the lakes, and on the human populations that depend on the lakes”” resources,” said Paul Filmer, program director in the National Science Foundation (NSF)””s Division of Earth Sciences, which funded the research.

Core samples from the lakebed that laid out a 1,500-year history of the lake””s surface temperature showed that 26 degrees Celsius (78.8 F), last measured in 2003, is the warmest the lake has been for a millennium and a half.

“Our data show a consistent relationship between lake surface temperature and productivity such as that of fish stocks,” said Jessica Tierney of Brown University, the paper””s lead author. “As the lake gets warmer, we expect productivity to decline, and we expect that it will affect the fishing industry.”

The lake holds a complete ecosystem that faces danger currently. It depends on wind to churn its waters and send nutrients from the depths toward the surface. These nutrients are food for algae, which supports the lake””s entire food web.

But increasing temperatures have prevented the mixing of waters – causing fewer nutrients to be funneled from the depths to the surface.

Although some researchers say that overfishing may be a reason for stock depletion, they note that warming of the lake is exacerbating the fish stocks”” decline.

The study is published in this week””s on-line issue of the journal Nature Geoscience. (ANI)

Fishermen not respecting sacred sites, court told

A court has heard commercial barramundi fishermen are not respecting sacred Aboriginal sites in the Northern Territory.

Commercial barramundi fisherman Darren Murray was this morning fined $5,000 after pleading guilty to setting up a gill net on a sacred site in the Blyth River in northern Arnhem Land.

The Darwin Magistrates Court heard Murray deliberately entered the river mouth, which has been a registered sacred site since 1985.

In a submission to the court, traditional owners said they have had problems with commercial fishermen for a long time, as “they sneak in and out of the estuary at night”.

They said fisherman did not respect Aboriginal law or culture.

They said when fishermen entered the sacred site, “it’s like a curse. We get sick and our children get sick” and their “dreamings will be chased away”.

Murray’s lawyer, Peter Maley, told the court that the fisherman has had trouble selling his wild barramundi catch because of the flood of “cheap imports coming in from Indonesia” and “restaurants preferring to buy that at a significantly reduced price.”

Mr Maley said the Territory’s wild barramundi industry was “under siege” from imports.

He said Murray was going to get out of the fishing industry because of this pressure.

The court heard Murray has been to court for two similar offences in the past decade.

More Coral Sea fishing consultation urged

The Cairns and Far North Environment Centre (CFNEC) in far north Queensland says there needs to be extensive community consultation over no-take zones in the Coral Sea.

The Government has decided it will not put a blanket ban on fishing in the Coral Sea, but will examine the possibility of establishing no-take zones in Commonwealth waters from the Torres Strait to southern New South Wales.

CFNEC coordinator Steve Ryan says he supports the Government’s assessment plans, but the community needs to be involved.

“I think our Governments are rarely good at this consultation business,” Mr Ryan said.

“They’ve employed one person to cover from Torres Strait down to Bermagui on the NSW coast to deal with all the stakeholders, and I think that’s clearly an inadequate level of resourcing to talk to the community.”

Meanwhile, commercial fishermen say the industry is already suffering because of the proposals.

Coral Sea fisherman Bob Lamason says some fishermen have already left to find other jobs.

“I think the fishing industry has been thrown from pillar to post for political reasons and I think it is very, very hard for the commercial industry to keep surviving and this is in the whole of Australia,” Mr Lamason said.

Mr Ryan says the science needs to be investigated.

“There’s a lot that’s still unknown about the Coral Sea and there’s a lot of information that needs to be gathered and that’s what the Government’s been doing over the last year,” Mr Ryan said.

“We need to really sift through that now and go through the science and really go through what’s required for effective conservation of the Coral Sea.”

However, Mr Lamason says the Government should consult with commercial fisherman.

“We probably know as commercial fishermen more about the Coral Sea than what most of the scientists will ever know because they never go out there,” he said.

“It’s a vast area and the activities out there that people do doesn’t really affect the conservation area anyway because there’s so little activities there.”

Essential services being restored in cyclone-hit areas

Essential services are slowly being restored in north Queensland communities hit by Cyclone Ului at the week-end.

Residents in the coastal town of Seaforth lost power on Saturday night as Cyclone Ului battered the coast.

Seaforth shop keeper John O’Hara says his store is one of only a few in the area that has a generator.

“We’ve had no sleep since Friday night and I have to keep up all night to make sure that everything’s running smoothly so we have cold milk and stuff for people the next day,” he said.

25,000 homes and businesses are still without power and Ergon Energy says the majority will be restored by Tuesday night.

Water rationing orders have been lifted in Mackay and the Whitsundays.

The Whitsunday Regional Council has assured residents the water is safe to drink and the town water supply has not been contaminated with sewage.

Queensland Primary Industries Minister Tim Mulherin says he hopes to have an accurate figure later this week on crop damage caused by Tropical Cyclone Ului.

Mr Mulherin says fruit and vegetable growers in the Bowen region have not experienced significant losses because many had not yet planted seedlings.

He says it is hoped that damaged sugarcane can recover if the rain eases, although 10 to 20 per cent of the Proserpine crop may be lost.

He has told Parliament fishing boats have been kept off the water by the wild weather.

“Local seafood retailers have warned there may be fresh seafood shortages at Easter,” he said.

“However the impacts to the fishing industry will not be known until fishing resumes.”

Disaster relief

Special outreach centres have also been set up to make contact with small towns isolated by the cyclone.

West of Mackay in the Pioneer Valley, many smaller rural communities have been without power and phone lines for days.

The SES has set-up outreach centres in Mirani, Finch Hatton and Eungella to address the concerns of residents who have not been able to contact emergency services.

SES worker Errol Sander says only a handful of tasks have been received at the centres but he is expecting more.

“People might be at work in town so once phones start getting back on line we might be receiving calls through the call centre,” he said.

Disaster relief centres have been set up at the Mackay Churches of Christ, Cannonvale TAFE and the Proserpine Community Centre, but there has not been a big rush for financial help in cyclone affected areas.

Community Services Minister Karen Struthers says department staff handed out financial assistance grants to 30 people as of early Tuesday morning and fielded about 140 calls.

People can claim grants of up to $170 while families can get up to $780.

Premier Anna Bligh says most areas of the state are eligible for natural disaster relief following floods and a cyclone.

Ms Bligh says Ergon crews are still working to restore power in areas of north Queensland.

She says the state has had its fair share of natural disasters this wet season, including the floods in the south-west

“Around 80 per cent of the state is under natural disaster relief and recovery arrangements,” she said.

“It’s not that long ago that roughly that percentage was under drought declaration.

“Some are still experiencing drought but I think it is a measure of how quickly things have turned around for some regions.”

- Reporting by Sigrid Brown and Melinda Howells

Fishing boat scuppered on Moreton Bay

A former fishing boat that will form part of an artificial reef in Moreton Bay in south-east Queensland has been sunk two days earlier than planned.

The ‘Tiwi Pearl’ was supposed to be flooded near St Helena Island on Sunday morning.

Instead, it was moved five kilometres to its planned position and scuppered on Friday afternoon to make an artificial reef for fishing.

Minister for Climate Change and Sustainability Kate Jones says it was the safest option.

“Once it had broken two of its four moorings, the decision was made that it was taking water, and the safest and best option was to take it to its new home at Harry Atkinson Reef,” she said.

“This is something that the recreational fishing industry wanted,” she said.

“We agreed to deliver six artificial reefs across Moreton Bay and the sinking of the Tiwi Pearl will be the first of those.”

State Govt’s sinking ship

The State Government says a boat to be sunk in Moreton Bay at the weekend has been moved into place.

The former tuna fishing boat the Tiwi Pearl will be sunk east of St Helena Island at about 9.00am (AEST) on Sunday.

Sustainability Minister Kate Jones says the boat will be flooded instead of being blown up.

“Rather than using explosives the Tiwi Pearl will partially be filled with concrete,” she said.

“On Sunday morning several valves in the hull will be released causing the scuttling of the ship.”

Ms Jones says it is part of an extension to the Harry Atkinson Reef.

“This is something that the recreational fishing industry wanted,” she said.

“We agreed to deliver six artificial reefs across Moreton Bay and the sinking of the Tiwi Pearl will be the first of those.”

Ms Jones says boaties are being encouraged to come along to watch the sinking.

Fishing industry still awaiting oil spill compo

Commercial fishermen affected by one of Australia’s worst oil spills say they are still waiting for compensation a year after the disaster.

A 75 kilometre stretch of coastline from Moreton Island to the Sunshine Coast was coated with oil after the cargo ship Pacific Adventurer spilt about 270 tonnes of heavy fuel oil off Moreton Island.

The owner of the Pacific Adventurer, Swire Shipping, agreed to pay $25 million towards the clean-up cost, last August.

Queensland Seafood Industry Association spokesman Winston Harris says he is hopeful affected fishermen will soon be compensated.

“We’re working towards a time frame which I think is around the middle of this year,” he said.

Premier Anna Bligh says lessons have been learnt and the Government is now better prepared for such a disaster.

“I hope frankly that we never see another event like this but God forbid should it happen, we’ll be ready,” Ms Bligh said.

The Premier has used the anniversary to again thank people who were involved in the clean-up.

“It’s important to recognise the great work that was done to clean it up and I take my hat off to everyone involved,” she said.

The Government says two reports released yesterday found the response to the disaster was effective but there was room for improvement.

Clean-up

Meanwhile, the Sunshine Coast Mayor has defended the council’s use of heavy machinery to remove oil from the region’s beaches after the spill.

The Australian Maritime Safety Authority yesterday released a report in which it says the use of heavy machinery may have exacerbated the clean-up.

It has recommended Maritime Safety Queensland review the council’s oil spill response plan.

Mayor Bob Abbot says the response was appropriate.

“What we have to weigh up is the triple bottom line process … environmental damage against the economic damage and to wait two or three months to clean that mess up by hand would have caused massive economic damage on the Sunshine Coast,” he said.

The council says its coastal engineers have been unable to find any oil on Mudjimba Beach from last year’s spill.

They inspected the beach yesterday after a resident reported seeing oil leeching out of the sand.

Eight-and-a-half kilometres of the region’s coastline was affected by the Pacific Adventurer oil spill.

Infrastructure services executive director Andrew Ryan says there could still be oil residue in areas but there are also other possible explanations for the appearance of an oily substance.

“There certainly would have been oil in some of the crab holes that opened up typically on our beaches and some of the oil may well have got itself down there a year or so ago,” he said.

“It could have been a coral spawn or leeching from coffee rock, so again without being able to find it we haven’t been able to take any particular action.”

The Moreton Bay Mayor Allan Sutherland this week inspected areas of Bribie Island that were affected by the oil spill and says there is no oil residue.