[nasional_list] [ppiindia] Dozens of new species found in underwater wonderland
- From: "Ambon" <sea@xxxxxxxxxx>
- To: <"Undisclosed-Recipient:;"@freelists.org>
- Date: Wed, 20 Sep 2006 00:54:53 +0200
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**http://news.independent.co.uk/environment/article1616636.ece
Dozens of new species found in underwater wonderland
'Mind-blowing' discovery off coast of Papua hailed as greater even than the
Barrier Reef. Terry Kirby reports
Published: 18 September 2006
Dozens of exotic new fish and corals have been discovered in a spectacular
Indonesian seascape which scientists have hailed as a "species factory" -
possibly the richest marine environment in the world.
The barely-explored Bird's Head Seascape, off the province of Papua, is
"mind-blowing" and "unparalleled" in terms of the number and variety of species
that have been logged there, scientists say. Further expeditions are expected
to discover dozens more fish and corals.
Among more than 50 creatures discovered in two recent explorations by
scientists from Conservation International (CI) are two new epaulette sharks,
one of which appears to "walk" on its fins, several types of "flasher' wrasse
and many other multicoloured reef fish, new types of mantis shrimp and around
20 new reef-building corals. A total of more than 1,200 species of fish and
almost 600 species of coral were recorded, three quarters of the world's total.
Although investigated in the 1880s by explorers including the great Victorian
naturalist Alfred Russel Wallace - who described it as "one of the most
singular and picturesque landscapes I've ever seen'' - the Bird's Head area was
largely ignored by modern scientific expeditions until this century.
Dr Mark Erdmann, who led the two expeditions, said: "These reefs are species
factories. This region is simply mind-blowing in terms of its diversity. For
our surveys to uncover over 50 new species of coral, fish, and mantis shrimp in
less than six weeks is unheard of in this day and age. From the perspective of
marine - and especially coral reef - bio-diversity, it is unparalleled for an
area of this size.''
"Compared to the Great Barrier Reef, the Bird's Head has roughly 50 per cent
more reef-building coral species - 600 as opposed to 405 - in an area with
approximately one-tenth the size," Dr Erdmann said. "Although the GBR has
slightly more recorded species of reef fish, 1,464 compared with 1,233 in the
Bird's Head, it is important to note that the Bird's Head has received a
fraction of the scientific attention as the GBR, and there are undoubtedly many
more discoveries to be made there.''
The Bird's Head had 10 times the number of reef building coral species as the
Caribbean Sea, which is 20 times bigger, he said. During the expeditions,
scientists twice broke world records for the number of species found at single
sites - 330 species of reef fish from an area called Fak-Fak.
The area also includes the largest nesting area for Pacific leatherback turtles
and migratory populations of sperm and Bryde's whales, orcas and several
dolphin species.
CI is calling for urgent action to preserve the area from destructive
activities such as bomb and cyanide fishing as well as the intensification of
commercial fisheries. The seascape is also under threat from mining and timber
operations in coastal areas which could result sediments being washed into the
sea. Only a tenth of the area is currently protected. Fortunately, strong
currents and cool water, among other factors, will, scientists believe, help
the reefs resist the "coral bleaching", caused by climate change, which has
damaged many other reefs around the world.
The Bird's Head peninsular and its 2,500 offshore islands and submerged reefs
lie off the western half of New Guinea. The coastline is extraordinarily
diverse, with deeply forested steep inclines and mangrove swamps. Some shallow
reefs are inland, bathed in river waters while others are exposed to Pacific
waves.
The area lies at the centre of the "Coral Triangle" of the Pacific, which
encompasses the Philippines, Indonesia, Papua New Guinea and the Solomon
Islands and which scientists believe functions as a "centre of origin" for much
of the species diversity of that region of the world, actively exporting
species outwards.
The discoveries of the Bird's Head Seascape come in the wake of an expedition
last year to Papua's isolated Foja Mountains, several hundred kilometres to the
south, where scientists found what they described as a "lost world" containing
new species of birds, butterflies, frogs and other wildlife and confirm the
international importance of the region.
Scientists are still debating the reasons behind the region's biodiversity. Dr
Erdmann said one reason was that, over time, some deep sea basins - such as
Cenderwasih Bay, a large lagoon-like area in the north of the region - had been
closed by geological movements, which allowed new species to develop through
natural selection and genetic drift. When the bays were reopened by rising sea
levels or further geological movements, the species dispersed.
Dozens of exotic new fish and corals have been discovered in a spectacular
Indonesian seascape which scientists have hailed as a "species factory" -
possibly the richest marine environment in the world.
The barely-explored Bird's Head Seascape, off the province of Papua, is
"mind-blowing" and "unparalleled" in terms of the number and variety of species
that have been logged there, scientists say. Further expeditions are expected
to discover dozens more fish and corals.
Among more than 50 creatures discovered in two recent explorations by
scientists from Conservation International (CI) are two new epaulette sharks,
one of which appears to "walk" on its fins, several types of "flasher' wrasse
and many other multicoloured reef fish, new types of mantis shrimp and around
20 new reef-building corals. A total of more than 1,200 species of fish and
almost 600 species of coral were recorded, three quarters of the world's total.
Although investigated in the 1880s by explorers including the great Victorian
naturalist Alfred Russel Wallace - who described it as "one of the most
singular and picturesque landscapes I've ever seen'' - the Bird's Head area was
largely ignored by modern scientific expeditions until this century.
Dr Mark Erdmann, who led the two expeditions, said: "These reefs are species
factories. This region is simply mind-blowing in terms of its diversity. For
our surveys to uncover over 50 new species of coral, fish, and mantis shrimp in
less than six weeks is unheard of in this day and age. From the perspective of
marine - and especially coral reef - bio-diversity, it is unparalleled for an
area of this size.''
"Compared to the Great Barrier Reef, the Bird's Head has roughly 50 per cent
more reef-building coral species - 600 as opposed to 405 - in an area with
approximately one-tenth the size," Dr Erdmann said. "Although the GBR has
slightly more recorded species of reef fish, 1,464 compared with 1,233 in the
Bird's Head, it is important to note that the Bird's Head has received a
fraction of the scientific attention as the GBR, and there are undoubtedly many
more discoveries to be made there.''
The Bird's Head had 10 times the number of reef building coral species as the
Caribbean Sea, which is 20 times bigger, he said. During the expeditions,
scientists twice broke world records for the number of species found at single
sites - 330 species of reef fish from an area called Fak-Fak.
The area also includes the largest nesting area for Pacific leatherback turtles
and migratory populations of sperm and Bryde's whales, orcas and several
dolphin species.
CI is calling for urgent action to preserve the area from destructive
activities such as bomb and cyanide fishing as well as the intensification of
commercial fisheries. The seascape is also under threat from mining and timber
operations in coastal areas which could result sediments being washed into the
sea. Only a tenth of the area is currently protected. Fortunately, strong
currents and cool water, among other factors, will, scientists believe, help
the reefs resist the "coral bleaching", caused by climate change, which has
damaged many other reefs around the world.
The Bird's Head peninsular and its 2,500 offshore islands and submerged reefs
lie off the western half of New Guinea. The coastline is extraordinarily
diverse, with deeply forested steep inclines and mangrove swamps. Some shallow
reefs are inland, bathed in river waters while others are exposed to Pacific
waves.
The area lies at the centre of the "Coral Triangle" of the Pacific, which
encompasses the Philippines, Indonesia, Papua New Guinea and the Solomon
Islands and which scientists believe functions as a "centre of origin" for much
of the species diversity of that region of the world, actively exporting
species outwards.
The discoveries of the Bird's Head Seascape come in the wake of an expedition
last year to Papua's isolated Foja Mountains, several hundred kilometres to the
south, where scientists found what they described as a "lost world" containing
new species of birds, butterflies, frogs and other wildlife and confirm the
international importance of the region.
Scientists are still debating the reasons behind the region's biodiversity. Dr
Erdmann said one reason was that, over time, some deep sea basins - such as
Cenderwasih Bay, a large lagoon-like area in the north of the region - had been
closed by geological movements, which allowed new species to develop through
natural selection and genetic drift. When the bays were reopened by rising sea
levels or further geological movements, the species dispersed.
[Non-text portions of this message have been removed]
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