Perilous Times
Fish stocks quickly disappearing as trawlers empty Asia's seas
by Staff Writers
Penang, Malaysia (AFP) Nov 10, 2010
Overfishing in Southeast Asian seas has left garoupas and sea bass in
dire straits, searching for mates on denuded seabeds, according to
experts alarmed by ever-declining catches.
Marine scientists and fishermen say that popular fish species --
especially the large and valuable ones -- have been caught
indiscriminately, causing numbers to plunge dramatically.
For big fish "finding a mate is a difficult task. They have to swim a
long distance to find one," said Edward Allison from the World Fish
Center in Malaysia's northern resort island of Penang.
One of the culprits is bottom trawling, which involves dragging huge,
heavy nets along the sea floor. Large metal plates and rubber wheels
attached to the nets move along the bottom and crush nearly everything
in their path.
Allison said the habitat for young fish, or fry, is also shrinking
because the mangrove swamps which provide food and protection are being
obliterated by coastal development including tourist resorts.
Demand for top-quality seafood, from Southeast Asian nations themselves
and from Hong Kong and China, is another major factor behind the
emptying of the seas.
According to World Fish data, there were 10 times more fish in the Gulf
of Thailand in 1965 than 30 years later.
In Malaysia the decline was between 80 and 90 percent while in the
Philippines it is estimated that there was a 46-78 percent dropoff in
fish stocks.
There is little data from other countries without the resources to
carry out the studies, but World Fish believes the rate of decline in
those three countries is reflected across Southeast Asia.
In Tanjung Karang, a fishing village in central Malaysia on the banks
of the murky Tengi river which flows into the Malacca Strait, coastal
fishermen are gloomy as they come ashore to sell their daily catch.
After spending four hours at sea Kamarul Nizam, 35, managed to net only
a few kilos of small prawns and cheap catfish. He sells them to Gan
Soon Heng, a wholesaler who has been in the business for more than two
decades.
Sitting in his wooden shop on the banks of the Tengi, Gan gives Kamarul
about 30 dollars -- meagre pay for a hard day's work, as half is eaten
up in costs.
Gan shows off a 37 kilo (81 pound) stingray, a 12 kilo garoupa and a
long Spanish mackerel.
"Such a big stingray is rare. Even the 12 kilo garoupa is considered
small. Twenty years ago you could catch much bigger fishes. Now you
only get small ones," he said as he pointed to a few palm-sized
stingrays lying in an icebox.
Tiew Kian Hap, 44, has fished the Malacca Strait for three decades,
trawling for giant stingray, redfish and black pomfret.
"If we catch them we can make a profit. But their numbers now are much
less. Also there are a lot of fishing boats out there hunting for them
too," he said.
Instead, he mostly hauls in tiddlers that go to make belachan, a
strong-smelling fish paste that is a vital ingredient in some popular
Malaysian dishes.
Tiew lamented the lack of enforcement that sees big trawlers encroach
close to the shore, wiping out the fry that, if left undisturbed, would
grow into a valuable catch.
"Popular fishes like kambong or mackerel which we hope to catch get
wiped out because even the small ones -- one to two inches -- are
caught when their nets sweep the ocean floor," he said.
"There is no point reporting it because no action is taken."
Another fisherman, Ong Chee Hooi, 33, said the decline had been sharp
in the past five years, and that even the mud crabs that used to be
plentiful in the mangroves were disappearing.
"Their numbers have fallen. Factories and houses put up by the coast
are polluting the water and this is killing the mangrove swamps," he
said.
Allison said the use of dynamite and cyanide to fish in coral reefs,
common in Indonesia and the Philippines, also poses a serious threat.
He urged enforcement authorities to adopt conservation measures such as
encouraging the use of hook and line traps that net only targeted fish,
and aquaculture to produce popular species.
"The aquatic system is quite resilient and they can recover if we can
remove some of the pressures. What is needed is the political will and
motivation to do so," he said.