Thursday 10 April 2014

Old Dogs Can Learn ‘Green’ Tricks





A recently published study by the Imperial College London showed that environmental education could be passed between generations and affect behavior. No breakthrough you might think; my parents taught me plenty about how to behave.

Surprisingly, in this study it was school children who taught and changed the behavior of their parents. The results published February 13, 2013 in Environmental Research Letters describe a study on Mahé Island in the Republic of Seychelles. The researchers focused on the destruction of freshwater habitats in the country's wetlands, which was being caused by litter, land reclamation and household wastewater.

Through wildlife club activities in schools, the kids learned about wetland conservation. The big surprise came when parents were given questionnaires. The adults had dramatically changed their attitude to the wetlands over a short 12 month period. They had become much more environmentally responsible falling in line with their kids.




'Ghost fishing' by discarded nets can kill marine life for decades.


In a far more dramatic way the youth of Malaysia’s Pulau Pangkor have ‘rocked the local fishermen’s boats’ and made them think again. “Some of the older generation were overfishing the reef and damaging the coral habitat” says reef ecologist Kee Alfian, of Universiti Kebangsaan Malaysia.
“It was the young reef guides who finally said enough is enough and closed off the area in October, 2011. They didn’t apply to the government for the closure but instead took matters into their own hands and forged an agreement within their community. The area was only about 5,000 square metres ( a football field). No fishing, no collecting, no diving.”

Incredibly, the closed area began to change almost immediately. From an environmental wasteland to noticeably healthier environment in just a little less than 2 years. But the young people went a step farther and have kept the area closed. In the months that followed, fish that had grown large enough spawned in the protected area and were joined by their offspring. As the population grew, fish began to emigrate to the fishing grounds; but they were larger than those that made up the usual small catch of juveniles. Even sea cucumbers that were not being fished increased in numbers.


The entire process has been overseen by Kee Alfian of UKM and REEFCHECK Malaysia who have assisted through transplanting small propagated corals to the area. Stage two of the rehabilitation is being planned and will be implemented in the near future.

But what brought on the initial changes in Pulau Pangkor’s coral reefs? Was it global warming and coral bleaching, coral disease, or yet another new problem upsetting the nature’s delicate balances?

The answer is that the reefs were literally being ‘loved’ to death. People loved to snorkel there, they loved to fish there, to anchor their boats there, they loved to collect the shells, and they loved to dump their waste into the sea so it wouldn’t be a problem on land anymore. The relatively slow rate of recovery of coral reefs is geared to occasional natural disasters, not to prolonged over-use. The reef couldn’t repair itself quickly enough to cope with all the attention it was getting.

 Crown of thorns starfish are coral predators. Normally rare, their numbers can increase to plague proportions when the ecology is out of balance.


Once a popular venue for tourists eager to become underwater explorers, pollution and silt from the land, coupled with overuse had robbed Pulau Pangkor of the treasure that brought that very popularity. The absence of marine park status meant that tourist use and fishing pressure grew unchecked to destructive levels.

By comparison, Pulau Sembilan is located only 18 km to the south and yet a recent survey uncovered hidden beauty and diversity including carpets of anemone and beds of corals.



“I’m amazed as the water visibility is low yet the coral cover is in the same state as in the East Coast where the water is a lot clearer,” says Kee Alfian. The reefs are generally in “fair” condition, with average live coral cover (of both hard and soft corals) of 29% (the average for Malaysia in 2010 is 44%). The corals appear to be growing and reproducing well despite the turbid waters. The incidence of recently killed corals is low (0.44%), indicating few recent disturbances and a low abundance of coral predators.
Much has been said about the global decline of coral reefs and my own 1982 work first suggested that there were  ‘points’ that if passed might become points of no return. Coral reefs as we know them could simply disappear.

Dr. Martin Scheffer (Sept., 2009)of Wageningen University in The Netherlands wrote of these ‘points’, "It's increasingly clear that many complex systems have critical thresholds -- 'tipping points' -- at which these systems shift abruptly from one state to another."



In February, 2010 the American Association for the Advancement of Science held a conference to look at this frightening possibility. Titled “Will Coral Reefs Disappear?” Dr. Simon Donner, an assistant professor in the department of geography at the University of British Columbia, talked about the vulnerability of coral reefs to climate change due to higher ocean temperatures.

“Given the hundreds of millions of people living in the tropics who depend on coral reefs for food, income, tourism and shoreline protection, the loss of reefs is a serious issue”, says Dr. Donner

Dr. Donner says that he is not predicting that coral reefs will go extinct; they will continue to survive, but only in a few habitats, where they are protected from too much change. The reality is that a general loss of live coral cover and a breakdown of the physical structure of reefs will happen on a large scale.


Let’s think again of the wonderful success of the young people of  Mahé Island and Pulau Pangkor. We as S.E. Asians are intimately tied to the sea; we fish in it, play in it, live next to it, and many of us make our livelihoods from it. Young people are showing us the way to turn the overexploitation around. We can and must avoid at all costs the point of no return, the ‘tipping point’, where all that we need from the sea is suddenly lost.

We must stop loving our reefs to death and instead learn a little respect and moderation. We are the only species on this planet that has the power to change the direction we are moving in and there is so little time.


Let our legacy to our children be that we learned from them and made their futures brighter in the process.





http://youngmarinescientist.blogspot.com/
http://geraldgoeden.blogspot.com/
http://goedensnews.blogspot.com/
http://goedenquotes.blogspot.com/
http://goedenscience.blogspot.com/
http://goedenmarineecology.blogspot.com/
http://gerryquotes.blogspot.com/
http://einsteinsnature.blogspot.com/
http://drgerrygoeden.blogspot.com/
http://underwaterinternet.blogspot.com/
http://goedenshark.blogspot.com/







Wednesday 9 April 2014

Sharks, whales, ivory, and drugs








This report published in the Epoch Times on April 8, 2014


The Guardian reported (4TH April, 2014) that Japan’s biggest online retailer, Rakuten, will stop their whale meat and dolphin meat sales by the end of April after the International Court of Justice ordered Japan to immediately halt its annual whale hunts in the southern ocean.

Rakuten said it had asked sellers to cancel sales of whale meat products on its website “in accordance” with the ICJ ruling. Monday’s verdict in the Hague. It should be pointed out that it did not cover whale meat sales within Japan, which are legal, or the country’s slaughter of whales in the north-west Pacific and in its own coastal waters.

The decision by Rakuten comes soon after the UK-based Environmental Investigation Agency (EIA) exposed the company as the world’s biggest online retailer of whale products and elephant ivory.
Now I can’t recall that Japan ever had permits to study the biology of elephants by turning them into carved ornaments and chess pieces. The prohibition of ivory hunting in Africa and even the shooting of poachers haven’t stopped the practice if Rakuten’s sales are an indicator. 

Banning a desirable commodity raises its price and drives it into the black market; look at drugs and guns for example. Until recently Rakuten’s website carried more than 28,000 advertisements for elephant ivory and 1,200 for whale products, according to the EIA and the Humane Society International.

So what does this have to do with sharks?

Justin McCurry writing for the Diplomat (11 Feb, 2011) had visited the fishing docks of Kesennuma City, Japan in an undercover operation. Kesennuma netted some 14,000 tons of sharks in 2009, for which the Japanese operation earned more than 2.4 billion yen.

 
 Asian shark markets like these turn over thousands of tons each year.

But it’s important to understand that fishing for sharks isn’t just a problem created by the Japanese. It’s true that they are successfully capitalizing on the trade of threatened species but as far as sharks go, they aren’t doing the killing.

On March 1, 2013, “Global Catches, Exploitation Rates and Rebuilding Options for Sharks,” was published by Dr. Worm and three other researchers from Dalhousie University teamed up with scientists from the University of Windsor in Canada, as well as Stony Brook University in New York, Florida International University (FIU) in Miami and the University of Miami. A very powerful team indeed.


 
 Shark fins are usually dried in the sun allowing the activity to go on as small scale operations.


Their shocking findings are that fishing for sharks is now globally unsustainable. Their more recent estimates put the carnage at 97 million in 2010. The possible range of mortality is between 63 and 273 million annually. This equates to somewhere between 7,200 and 31,000 sharks per hour.

“Sharks are similar to whales, and humans, in that they mature late in life and have few offspring” said Boris Worm. “Our analysis shows that about one in 15 sharks gets killed by fisheries every year. With an increasing demand for their fins, sharks are more vulnerable today than ever before.”
Because shark fins are so valuable and boats are limited in the amount of cargo they can carry, most shark finning is done at sea. The low value shark carcasses are dumped at sea and only the high priced fins return to market. 

Most shark finning is done in under-developed countries but the fishermen benefit little from the high prices the product fetches at the retailers.


 


Save our Seas Foundation provide shark fin statistics up to 2006.

Country Catching……..Shark Fin Landings
Indonesia………………107,290 tons
India…………………….81,237 tons
Spain……………………55,790 tons
Argentina………………..46,461 tons
Taiwan…………………..40,776 tons
USA……………………..36,906 tons
Mexico…………………..29,315 tons

So, who is buying them?

Country Buying……….Shark Fin Imports
Hong Kong……………….58%
China……………………..36%
Malaysia…………………..2%
Indonesia………………….1%
Taiwan…………………….1%
Thailand…………………..1%
Others…………………….1%

I was surprised to see Malaysia in the number three spot. According to Victoria Mundy-Taylor and Vicki Crook of the wildlife trade investigators, Traffic, “Malaysia imported 6,896 tonnes of sharks fins (dried, prepared and salted) from 2000-2009, the fourth highest importer globally.”

“Malaysia also caught 231,212tonnes of sharks from 2002 to 2011,” which is the eighth highest globally, accounting for 2.9% of the total global reported shark catch during that period.

 

Victoria Mundy-Taylor and Vicki Crook were quick to point out that as a signatory to the CITES (Convention on International Trade in Endangered Species of Wild Fauna and Flora), Malaysia has an international obligation to implement measures intended to ensure the international trade in products of the shark species protected under the Convention is both legal and sustainable.

As far as I know, there is no ban on shark and manta ray trading in Malaysia. The eastern Malaysian state of Sabah is said to be considering bans on shark fishing and finning but has held back wanting similar provisions to be included in the federal Fisheries Act 1985.

There does not seem to have been any action yet. Even though shark fishing for most species is now clearly unsustainable, it’s difficult to put an end to traditions and business success in this rapidly growing Asian economy.

The next vexing question is how the shark traders of developing countries would react to bans that halt their income in these super-competitive economies.

 
 This harmless whale shark is the world's largest fish species and now faces extinction.

How willing will a trader be to give up his income and improving standard of living because the “western” world tells him to? I think the answer is he won’t change and corruption will ensure that there is business as usual.

I don’t want to rain on the conservationist’s parade, but banning shark fins in Asia will probably drive the business underground. 


 
Roof top drying of illicit shark fins.
According to Mr. T. Packard of the conservation group, PangeaSeed, shark fins are the third most valuable illicit product in the world today. Drugs and guns are first and ivory is fourth in terms of cash generated.

Shark conservation must go ahead if we want to stop the ocean’s ecosystem from passing through a tipping point that may catapult us into a disastrous world fisheries situation.

But we will never achieve this with an iron fist. Conservation groups and governments must provide alternative business enterprises if they are not to drive the shark fin trade deep into the black market.

Within 30 years shark fin soup will no longer symbolize prosperity. Instead it will be a tribute to man’s greed and lack of commitment to his own future.

I wish to thank Shawn Heinrichs for the excellent photographic work.

 



http://youngmarinescientist.blogspot.com/
http://geraldgoeden.blogspot.com/
http://goedensnews.blogspot.com/
http://goedenquotes.blogspot.com/
http://goedenscience.blogspot.com/
http://goedenmarineecology.blogspot.com/
http://gerryquotes.blogspot.com/
http://einsteinsnature.blogspot.com/
http://drgerrygoeden.blogspot.com/
http://underwaterinternet.blogspot.com/
http://goedenshark.blogspot.com/