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Plunging
trout population raises doubts about clean-up efforts on one of Europe’s
most beautiful lakes.
By Greg Spencer
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| Photo: PAVEL ANTONOV |
| NET
LOSSES: Biologist Dimitrije Taleski says the Ohrid Trout Hatchery
has a capacity of 3 to 5 million eggs a year, but has recently been
hatching just 1 million annually. |
The population of the Lake Ohrid trout is in a freefall,
and if nothing is done to stop it, so too could go international help
to save one of the world's most ecologically valuable lakes.
This black spotted trout -- one of the lake's several relic species that
exist nowhere else on earth except as fossils -- is considered an indicator
of Ohrid's environmental health. The fish's plight has raised concerns
that the lake could lose its status as one of the planet's few natural
sites with World Heritage status.
Though the trout tops the menu at virtually every restaurant on the shoreline,
the Hydrobiological Institute of Lake Ohrid has floated the extreme suggestion
of a five-year moratorium on commercial fishing, as well as the periodic
relocation of tourists away from active spawning areas.
The proposal has won high-level endorsements from the ministries of environment
in both Macedonia and Albania, the counties who share the lakes' shoreline,
as well as local support by lakeside municipalities. But if promises aren't
followed by action, they may face censure by UNESCO, the guardian body
of World Heritage sites.
UNESCO's Macedonia office in Skopje has just begun a review of the lake's
health, one to be performed by an international team of scientists from
both Albania and Macedonia as well as countries outside the region. Lidija
Topuzoska, UNESCO's Macedonia representative, wouldn't say whether the
review was initiated by any specific concern or complaint -- as such reviews
often are.
But she noted that the two principle indicators that the research team
will examine are the pollution levels of the water -- whose measurements
to date have been mainly localised -- as well as the population levels
of the trout.
The lake's World Heritage designation, granted by UNESCO in 1980, has
made it a target for lavish international funding, including USD 4 million
for a World Bank conservation project that began in 1998 (see "Cross-border
cooperation for a lake," December 2002 issue of the Bulletin). That
favored status could be in jeopardy if UNESCO decides to put the lake
on an endangered list -- a sign to the world that Macedonia and Albania
have not been fulfilling their roles as local stewards.
To the casual observer, the distress calls might seem alarmist. The lake
retains its rare, crystal-clear character, a result of its formation by
earthquakes pre-dating the Ice Age, and the fact that much of its source
water comes from underground springs.
Scientists call the lake "oligotrophic," meaning it is remarkably free
of phosphates and other organic pollution that give rise to the kind of
algae and micro-organisms that cloud up more "eutrophic" waters. On Lake
Ohrid, you can see to 20 metre depths.
The lake's surroundings impress, as well. A cradle of stony mountains
with thickly forested foothills encircles the water, creating a sense
of isolation. Its 164 kilometres of shoreline are home to just 200, 000
people, most of them clustered in three small towns and the rest in sparsely
scattered villages where cows, chickens and the occasional black-shawled
babushka constitute main street traffic.
Despite this enduring natural beauty, environmental pressures have been
mounting over the years. Since the Second World War, the lake's human
population has doubled, yet the majority of households still dump their
wastewater, untreated, directly into the lake. Lake Ohrid lacks any properly
lined waste dump and despite recent discussion on the topic, there is
still no watershed management which might curb inflows of fertilisers
and other chemicals from the heavily cultivated countryside. A 2003 state
of the environment report estimates that phosphorous levels in the water
are probably three to four times their pre-World War II levels.
Half the catch
Scientists believe this is one reason for the disappearance of the trout.
According to the environmental report, in 2001 fishermen caught just 200,
000 kilogrammes of trout, less than half the catch of 1988.
The governments of both shores say they'll back the scientists. On the
Macedonian side, Deputy Minister of Environment Dzagoliub Matevski stated,
"We will support any measures deemed scientifically necessary for the
protection of the lake and its endemic species", including a moratorium
on fishing. His Albanian counterpart, Besnik Paraj, agreed, saying "A
moratorium is a step that must be taken." Paraj said he was "very upset"
with illegal fishing on the Albanian side of the lake, but this is an
old issue which has been repeatedly condemned but rarely policed.
Progress is being made, though it remains to be seen whether it is fast
enough for the fish. A EUR 20 million, German-funded sewerage project
is due for groundbreaking in August in the Albanian town of Pogarec, currently
the lake's largest, single source of pollution. A similar project that
began on the Macedonian side in the mid-'80s has made the once filthy
water in Ohrid Bay safe for drinking again.
But conservation work on Lake Ohrid is notoriously slow. The Macedonian
sewerage project, for one, has been underway for 18 years and is still
just 65 percent complete. And the Lake Ohrid Conservation Project, a threeyear
initiative that was supposed to wrap up in 2001, is still dragging on
despite having realised just one of its four main objectives.
REC Macedonia's Katarina Stojkovska, who oversaw the single completed
element of the project, a public awareness campaign, believes things will
get done -- one day. "You know the people of this region," she said. "There
are always delays." |
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