U.S. Fish and Wildlife Service Response to
Vessel Grounding/Oil Spill off Unalaska Island
December 22, 2004: Not much change from yesterday, as weather continues
to be what we've all learned by now to expect from an Aleutian winter.
Gale and heavy freezing spray warnings continue. A third response
vessel is being readied; this is the crabber Norseman, approximately
the same size as the Exito (see photo gallery). F/V Norseman has an
open work area on deck which will make it easier to continue wildlife
survey and rescue work. Additionally, the Fish
and Wildlife Service's M/V Tiglax is enroute to Dutch Harbor and
should arrive Thursday morning. For latest totals on equipment resources
such as amount of booming placed to date, number of helicopters, skimmers,
and spill response vessels in operation, please check the Unified
Command's most recent Incident Action Plan.:
Many new
photos have been posted and are available in the following categories:
Satellite Images taken December 13, 2004
Oiled Wildlife and Habitat
Photos from the F/V Exito (skiff survey/rescue efforts)
Bird species at particular risk include loons, grebes, auklets, murres,
cormorants, eiders, mergansers, black and surf white-winged
scoters, and harlequins. Bald eagles and ravens can be poisoned or
oiled when scavenging oiled carcasses. Steller's eiders and emperor
geese numbers in the area are expected to increase as they begin arriving
for winter. Many of these birds are especially vulnerable because
they spend much of their time floating on the ocean surface where
contact with oil would occur. For example, harlequin ducks spend most
of their annual cycle (8-9 months) in marine habitats where they could
be exposed to spilled oil, and they are often found in near-shore
intertidal and shallow subtidal zones, where any released oil would
concentrate. They prefer certain habitats – rocky beaches near
offshore reefs and stream mouths, with exposure to surf and winds.
Because harlequins need to be able to see to eat, they gobble up anything
they can find in the rocky intertidal zone during the brief midwinter
days – snails, amphipods, chitons, limpets, and mussels. Ingestion
of oil from eating invertebrates, or from preening oiled feathers,
can quickly poison these ducks. Even a small amount of oil on the
feathers provides an opening for loss of temperature regulation, and
most oiled birds become hypothermic.
Further updates over the weekend will be issued only if warranted
by new information; have a safe and happy holiday.