| A leatherback sea turtle tracked
by satellite tagging was reported to have traveled from
Jamursba-Medi, Indonesia to the coast of Oregon-a total of 12,774
miles-over the course of 647 days. National Marine Fisheries Service
scientists report that the leatherback's journey is
the longest ever to have been recorded for any ocean-going
vertebrate, according to an article in The State of the World's Sea
Turtles magazine, launched by Conservation International and the IUCN Marine Turtle Specialist Group.
Climate Change
Devastates Seal Pup Population
The Baltic Sea has experienced its warmest winter since records
began to be kept in 1720, and approximately 500 baby ring seals
living north of Germany have died as a result. Ring seals, which are
listed as endangered by the World Conservation Union, normally give
birth on sea ice and care for their pups for about 40 days.
Because ice floes are melting more
quickly, the pups are leaving the birthing lairs and entering the
water before they are ready. Unprepared to take care of themselves
and without enough blubber to stay warm, the animals often starve
and die. Additionally, the lack of ice floes has caused mother seals
to move to the mainland to give birth. On land, the baby seals are
vulnerable to predators.
The species' once-strong population
of 180,000 animals in 1900 was dramatically reduced over the 20th
century due to hunting and pollution. However, prior to encountering
difficulties this winter, its numbers of 7,000 to 10,000 animals
were growing steadily, with the hope of
recovery.
Caption: Ring seal pups in the
Baltic Sea are
dying at a troubling rate.
Tui De Roy/Minden Pictures
The Great
Pacific Garbage Patch: A Deadly Landfill at Sea
A plastic refuse twice the size of
the continental United States, nicknamed "Plastic Soup" by
scientists, is floating in the Northern Pacific Ocean. The polluted
expanse was formed when two areas on either side of Hawaii-the
Western and Eastern Pacific Garbage Patches-merged to form the Great
Pacific Garbage Patch. The mass was discovered 11 years ago by US
oceanographer Charles Moore as he traveled by boat through the
"North Pacific gyre" on his way between Hawaii and Los Angeles.
Inside territory normally avoided
due to strong high pressure systems and a lack of wind, Moore
uncovered an approximate 100 million tons of debris stretching from
about 500 miles off the coast of California nearly all the way to
Japan. A committed environmentalist today, he believes this patch
could double in size over the next decade if people do not cut back
on their use of disposable plastics.
University of Hawaii professor
David Karl now wants to see the mass on an expedition to be held
later this year. The "soup" can only be seen by traveling through
it, he says, because the plastic is translucent and lies just under
the ocean surface, making it undetectable by satellite
photography. However, the threat to marine animals living in these
waters is unavoidable.
An example of the lethal hazard
posed by plastics in the ocean is the case of a young female minke
whale who washed up from the English Channel in 2002 and was found
to have swallowed almost two lbs. of plastic bags. Scientists
discovered that she starved to death, with nothing besides the bags
in her stomach. Plastic can cause serious damage and death by
impeding the digestive tracts of whales and other marine animals,
making them feel full and preventing them from eating. |