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Please
join us November 7-9,
2008 when
world-renowned biologists and researchers come to Sitka to share their
knowledge and studies on Movement
and Migrations at the
WhaleFest symposium.
(Click here
to view 2005 Symposium Speakers)
(Click here
to view 2006 Symposium Speakers)
(Click here
to view 2007 Symposium Speakers)
2008
Symposium Speakers:
(Information
is updated as it is received, please check back!)
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Russ Andrews, Ph.D.
Keynote Speaker, Using
High-Tech Gizmos to Spy on Seals and Whales in Alaska: An
Attempt to Understand How Marine Mammals Cope with Changing
Environments
This
year we note that it has been 50 years since Alaska became a
state, 142 years since it was purchased from Russia, and 268 years
since it’s marine life was first described by a professional
naturalist (Georg Steller).
Russ will recount some of his own voyages aboard Russian
vessels not much more seaworthy than Bering’s St. Peter as he
describes how North Pacific marine life has changed since
Steller’s time.
Of course, in this age of the ubiquitous iPhones and video
iPods, Russ has not been content to spy through a looking glass
but rather he has turned to high-tech gizmos to peer out beyond
the horizon and below the surface of the sea.
For his Ph.D. thesis work, Russ had to build home-made data
recorders that he attached to elephant seals to record their heart
rate, body temperature, and diving behavior in order to figure out
how they could hold their breath for up to 2 hours.
Since then he has been focusing much of his research on
trying to understand how physiological constraints affect the
ability of marine mammals to adapt to changes in their
environment. In
the 1970’s there were a lot of changes happening in the North
Pacific and the Bering Sea, including a major oceanographic
climate shift, a dramatic increase in fishing effort, and a sudden
end to commercial whaling.
Although it may never be possible to identify whether all
of or none of those factors were the cause of the population
declines of Steller sea lions and northern fur seals in Western
Alaska, he hopes that his current work will allow us to predict
how future changes may affect these animals.
In his talk, he’ll explain how he does this by designing
and deploying data and video recorders that allow us to track the
migrations of these animals and their main predator, the killer
whale, and also to peek beneath the waves and study their feeding
behavior.
Dr. Russ Andrews is a research assistant professor with a joint
appointment in the University of Alaska Fairbanks' School of
Fisheries and Ocean Sciences and the Alaska SeaLife Center in
Seward, Alaska. Using high-tech gizmos, he has studied the
physiology, behavior and conservation biology of marine mammals,
seabirds and sea turtles. The unifying theme of his research
interests is: How and why do air-breathing animals dive beneath
the surface of the ocean.
Background
Reading: Experimental
Approaches to Conservation Biology
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Alison Banks, Northern
fur seals seasonal movements and foraging strategies: consequences
to females and their pups
Alison
is currently
a graduate student at the University of Alaska, Fairbanks.
Her academic interests primarily involve pinniped foraging ecology
and reproductive physiology. Alison completed undergraduate work at
the University of California Santa Cruz where she worked on a
project investigating the foraging ecology of Antarctic fur seals.
She has been in Alaska since 2001 where she has had the
opportunity to collaborate with researchers studying Steller sea
lion critical habitats, intertidal communities in Prince William
Sound and seabird foraging ecology and reproductive success on the
Pribilof Islands. Alison is currently completing her PhD work which
examines northern fur seal foraging strategies and reproductive
physiology.
She lives in Fairbanks and spends summers working in the field
and exploring Alaska.
Alison's
favorite remote location in Alaska is Bogoslof Island, where she conducted field work during the summers of 2005 and 2006.
Her favorite kayaking and camping area is Prince William Sound, but
she still has so many places to see and explore.
For instance, she would love to kayak around the islands and
fjords of Southeast Alaska.
Background Reading: Oceanographic
features related to northern fur seal migratory movements
; Separation
of foraging habitat among breeding sites of a colonial marine
predation, the northern fur seal (Callorhinus ursinus) ; The
evolution of lactation strategies in pinnipeds: A
phylogeietic analysis
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Mike Castellini, Ph.D.
A
several thousand mile migration for you without eating would
be tough…But is it hard for a whale or a seal?
Everyone
likes to hear stories about the "amazing animal
migrations" of birds going from pole to pole, whales
crossing ocean basins and caribou crossing Alaska. Questions
about how these animals navigate great distances is always a
good point to discuss, or maybe even how birds will sit down
and wait for a storm system to move through before
continuing their flights. In this talk however, we will look
at another aspect of migration: How do marine mammals carry
enough energy with them to go for long distances without
eating? Do you suppose they are "sneaking snacks"
along the way and how would we know? For that matter, how do
they get enough water to drink? You couldn't be at sea for 3
months and not drink…how can an elephant seal swim from
San Francisco to the Aleutians and back without drinking?
And, why bother to swim all that way just to get food in the
first place when you could just eat fish off the coast of
San Francisco? We will talk about calories, fat, blubber,
exercise and water and how marine mammals have adapted their
use of these to into their interesting migrations.
Mike received his PhD in marine
biology from Scripps Institution of Oceanography in 1981. He
has been a faculty member at the University of Alaska Fairbanks
since 1989, Science Director for the Alaska Sealife Center in
Seward, Alaska 1995-1999, Director of the Institute of Marine
Science at UAF from 2002-2005 and is currently the Associate Dean
for the School of Fisheries and Ocean Sciences. Mikes
research focuses on how marine mammals have adapted to life in the
sea. Ever since his graduate work in San Diego, he has studied
marine mammals around the world examining their biochemical,
physiological and behavioral adaptations for deep and long
duration diving, extended fasting, exercise physiology,
hydrodynamics and even sleeping patterns. In Alaska, his work has
extended into issues of population health (why are marine mammal
populations declining in some areas?), contaminant chemistry,
reproductive chemistry and digestive physiology. Mikes graduate
students work from Alaska to Antarctica on these issues. He
as written over 75 scientific papers on his work and is
involved in local, state and National panels and committees
dealing with policy issues related to marine mammals, ecosystem
management and agency oversights.
His
favorite location in Alaska is on the Forrester Island
complex, about 70 miles southwest offshore of Ketchikan and as
far south in the Alaska panhandle as you can get…the islands
are covered in Steller sea lions, birds, berries and
fortunately, no bears. Wonderful weeks spent there working on
sea lions and exploring elfin-like old-growth forests….just
amazing. Background Reading: Stable
Carbon Isotope Ratios For The Gray Whale (Eschrichtius
Robustus) In The Breeding Grounds Of Baja California Sur,
Mexico
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Dan Crocker, Ph.D. Foraging
Ecology of northern elephant seals: physiology, energetics,
and behavior.
Investigating the long foraging migrations of northern
elephant seals represents an interesting mix of physiology and
behavior. In addition to amazing feats of breath-holding
required to reach their deep-sea prey, elephant seals forage
over an unusually large spatial scale that is limited by the
need to return to shore to pup. Dan will discuss analyses from
a large tracking and diving behavior data set from nearly 200
northern elephant seals on their foraging migrations, focusing
on the implications for diving physiology and foraging
energetics. We will discuss the impacts of size, age,
pregnancy and oceanographic conditions on diving and foraging
behavior and link these findings back to the amount of milk a
female is able to give her pup. We will discuss the ways
that elephant seals find food in a big ocean and the rates of
success required for reproduction.
Dan is currently a Professor of Biology
at Sonoma State University in California.
He received a BS in Applied biology from Georgia Tech,
a MS in Marine Sciences from University of California Santa
Cruz and a PhD in Biology from University of California Santa
Cruz. Dan's research is focused on the physiological and
behavioral ecology of pinnipeds, seals and sea lions. His
approach is to integrate physiology and behavior with the aim
of addressing ecological theory. He is investigating
physiological factors that impact the reproductive and
foraging strategies used by marine predators. Much of his
current research is focused on the physiology and behavior of
northern elephant seals.
Dan's wife, Tere, is an equine
veterinarian. His
favorite place is Denali, Alaska, where he and Tere spent
their honeymoon. They
have an 8 year old daughter, Cassidy, who wants to be an
artist and marine biologist when she grows up.
Background Reading: Impact
of El Nińo on the foraging behavior of female northern
elephant seals
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Craig George,
A
Tough Trip through (Frozen) Paradise
As a general pattern, most bowhead
whales of the Bering-Chukchi-Beaufort Seas stock migrate from
wintering areas in the Bering Sea into summer feeding areas in
the Beaufort Sea each year. Bowheads are unique in that they
do not leave Arctic or sub-Arctic waters and remain in
ice-covered seas the entire year. Equally unusual is that
bowhead whales have the ability to break through ice in order
to breathe. They use this ability mainly during winter and
spring which allows them to survive in ice-covered seas. Still
there are ice conditions which can block the migration, and
scattered incidents of drowning have been reported across the
Arctic. They begin
their migration in March through “leads” or cracks in the
ice which have sometimes refrozen. No one really knows how
they navigate the ice but they do, by the thousands.
Once into
their summering grounds they feed on mainly copepods and
euphausiids but also a large number of other small
invertebrates. In autumn, they travel SW towards Russia and
feed along the Chukotka coast and then drop south back into
the Bering Sea. However, some individuals do not follow this
exact pattern and pose some interesting scientific questions,
which we will discuss in this talk.
Yankee whaling
records show this pattern of whales catches through the season,
however, distribution patterns have changed a lot since then.
Whaling records suggest that bowheads once summered in the
Bering Sea by the thousands. Few are found there today. Again,
why this is so is not well understood.
New scientific
tools like satellite tags and acoustic tracking and Eskimo
Traditional Knowledge have given scientists better insights
into bowhead migratory behavior.
This talk will cover what is currently known and what
is still unknown about the migration of western arctic bowhead
whales.
Craig has worked as a Wildlife Biologist with the
North Slope Department of Wildlife Management in Barrow,
Alaska for 25 years. Craig
earned a B.S. in Wildlife Biology from the Utah State
University in 1976 and is currently working on a Ph.D. in
bowhead whale energetics, age estimation and morphology
(comprehensive exams 2001).
Beginning in 1982, Craig worked on and later
coordinated the bowhead whale ice-based population assessment
project on the sea ice near Point Barrow for nearly two
decades. He
also has conducted over 250 postmortem exams on bowheads
harvested by Alaskan Eskimos (since 1980) and published a
number of papers on these exams ranging from evidence of
killer whale predation to structural anatomy. Craig has
attended IWC meetings since 1987 focusing mainly on aboriginal
whaling management procedures, humane killing and population
estimation. He has also participated in Eskimo traditional
knowledge studies and fisheries studies on the North Slope.
Craig has lived in Barrow since 1977 and is married to Cyd
Hanns, a wildlife technician. Together they enjoy community
and outdoor activities with their two sons Luke and Sam. Craig's
favorite place is the Arctic
coast of Alaska and Canada best because it’s remote,
beautiful cold and retains a thriving subsistence whaling
culture.
Background Reading: Age
of growth estimates of bowhead whales (Balaena mysticetus) via
aspartic acid racemization
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Carey Kuhn, Ph.D. Flexible
foraging behavior: how fur seals and sea lions respond to
environmental variation
Female fur seals and sea lions are faced
with the challenges of balancing time on land nursing a pup
with time at-sea obtaining resources. While females make short
foraging trips to refuel, pups wait on shore fasting until mom
returns. In order to maintain this balance, females have a
limited amount of time to travel to foraging grounds and
locate prey. Carey will discuss how different fur seal and sea
lion species (with emphasis on northern fur seals) alter their
behavior at sea to respond to environmental variation. She
hopes to also discuss the potential impacts of these changes
in behavioral movement patterns on both raising a pup and
population growth.
Carey is a National Research Council
Postdoctoral Fellow working with the Alaska Fisheries Science
Center’s National Marine Mammal Laboratory (NMML) in
Seattle, Washington. She was raised in Arizona and received
her BS in Zoology from Arizona State University in 1997. After
a brief time working as a biological technician for the
National Park Service in New York, she began working towards a
Ph.D. in Ecology and Evolutionary Biology at the University of
California, Santa Cruz. Carey began studying pinnipeds (sea
lions, fur seals, and true seals) in 1999 and received her
Ph.D. in 2006 for her research examining the at-sea behavior
of two locally abundant species, the northern elephant seal
and California sea lion. During this time she also
collaborated with researchers examining the at-sea behavior
and physiology of a variety of other species including
crabeater seals, leopard seal, and Australian fur seals and
sea lions. Currently, Carey is working with the Alaska
Ecosystems group at NMML to examine the summer foraging
behavior of female northern fur seals.
Her area of expertise is foraging behavior of seals,
sea lions, and fur seals
Background Reading:
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Bruce Mate, Ph.D. The
changing range and role of gray whales
The
intimate details of whales’ lives are played out underwater
and therefore go largely unappreciated by scientists and whale
watchers alike, but satellite-monitored radio tags are
revealing many of the previously unknown details of their
seasonal distributions, migration details and underwater
behaviors. Even whales we thought we knew pretty well, like
gray whales, are changing their distributions in response to
population recovery, climate change, and associated issues
affecting their foraging strategies. In 2005, mother gray
whales were tagged in Mexico after they had calved and tracked
north to their feeding areas. To the surprise of many folks,
all of the longest lasting tags revealed the emerging
importance of the Chukchi Sea and how little whales are now
using the Bering Sea, which has long been considered their
primary feeding area. Other dramatic revelations involved the
movement of whales through the spring ice lead in the Chukchi,
determination of foraging home ranges for individual whales,
the collective scope of the whales’ summer foraging habitat,
the importance of ice as an apparent environmental cue for the
last migrants to leave the Chukchi, and details of the
migrations north and south with regard to speed, timing, and
distance from shore. Gray whales are the first whales to
recover from over-exploitation and as such we may now be
seeing what they do (feeding-wise) and where they live
(distribution-wise) as a recovered population for the very
first time. Our previous impression of gray whales as bottom
feeders almost exclusively on amphipods may have been a result
of artificially plentiful amphipods because the gray whale
population was depressed. Today we see gray whales midwater
feeding on swarms of mysids and surface skim feeding krill.
Tag technology has become an important scientific tool to
discover wide-ranging whale movements and integrate them with
environmental data.
Dr.
Bruce Mate was born in and raised in Illinois, until moving to
Oregon in the 60s. He received a bachelor’s degree and a
Ph.D. in biology (with a NSF pre-doctoral fellowship) from the
University of Oregon before completing a NIH post-doc in
biochemistry at the Environmental Health Science Center at
Oregon State University. His
OSU career has been focused in Oceanography and Fisheries
& Wildlife. Bruce was Director of the OSU Marine Mammal
Program since its inception in 1973, and now serves as
Director of the Marine Mammal Institute, formed in 2006. He
has held an endowed chair since 1994, and is a professor in
the Department of Fisheries and Wildlife and an adjunct
professor in the College of Oceanography and Atmospheric
Sciences at Oregon State University.
His research focuses on identifying the migration,
feeding, and breeding habitats of endangered whales. He is
world-renowned for pioneering the development of
satellite-monitored radio tags to track large whales, and for
using resulting data to reduce human impacts that inhibit the
recovery of depleted whale populations. Bruce’s team has
tracked 13 populations of seven endangered whale species of
whales in all of the world’s oceans. Beginning last year,
the tags developed in Mate's lab have incorporated GPS
technology and time/depth recording capabilities to critically
evaluate natural movements, trophic interactions and
behaviors, as well as those possibly in response to human
activities. These tags will enable more specific details of
behavior and precise tracking of whales across the
globe.
Bruce
is a pilot with 5K hours, an avid sports car enthusiast, a
photographer, and enjoys the outdoors. In the 40 years he has
studied marine mammals, he has been in every ocean and worked
with pinnipeds, manatees, sea otters, small cetaceans and
large whales. He
has worked in the Beaufort, Chukchi, Bering seas and in SE
Alaska, and has enjoyed the variety and beauty throughout the
State’s extensive near and off-shore environments. Seeing
humpbacks cooperate in bubble-net feeding has always been a
special experience for him.
Background
Reading:
The Evolution of
satellite-monitored radio tags for large whales: One
laboratory's experience
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Craig Matkin, Interception
and predation on migrating gray whales by aggregations of
killer whales in Western Alaska: The risk of predictable
migratory pathways.
Eastern North Pacific gray whales make an
extensive migration from Baja California to the Bering and
Chukchi Sea each spring. Although
they have made a dramatic recovery from severe depletion, and
have been removed from the endangered species list, they face
considerable challenges with the possibility of dwindling food
supplies and from predation by killer whales.
There are two known regions where killer whales
annually intercept the migratory gray whales.
The first is in Monterey Bay California and the second
at the end of the Alaska Peninsula as the migrants head into
the Bering Sea. During
our research on killer whales in the Eastern Aleutians five
years ago, we discovered that at least 70 killer whales
annually move into the waters near False Pass and Unimak
Island to intercept young gray whales.
They often kill them in shallow waters, where they may
feed on the carcass for days.
We are just beginning to understand the importance of
gray whales to killer whales in this region and the
significance of predation on the gray whale population.
The predictable timing and migration pattern makes gray
whales particularly susceptible to ambush by small groups of
killer whales.
Craig is an independent researcher and
executive director of the research and education non-profit,
North Gulf Oceanic Society. He works with National Marine
Fisheries Service (NMFS), Alaska Sea Life Center, North
Pacific Marine Mammal Research Consortium, and Exxon Valdez
oil spill Trustee Council. Craig has researched Alaskan killer
whales and humpback whales for 25 years. He was a student of
Ken Norris’s at University of California Santa Cruz and a
graduate student at University of Alaska Fairbanks under Bud
Fay. Craig was also a long time commercial fisherman and he
currently lives in Homer, Alaska.
His area of expertise is cetacean biology, including
killer whale ecology and behavior and long term studies of
killer and humpback whales.
Craig's favorite place in Alaska is the
center of his longest running research project and his
spiritual home, Prince William Sound, where he has researched,
fished and at times lived since 1975. He has watched the same
killer whales (and humpback whales) in this area that were
born, matured, and produced young during the course of the
study. And of course he has watched some of them die...a
number as a result of the Exxon Valdez oil spill. Craig says,
"I am strongly connected to the place and the
animals."
Background Reading: Ecotypic
variation of predatory behavior among killer whales (Orcinus
orca) off the eastern Aleutian Islands, Alaska
and Ongoing
population-level impacts on killer whales Orcinus orca
following the ‘Exxon Valdez’ oil spill in Prince William
Sound, Alaska
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Scott Shaffer, Ph.D.
Have wings will travel: Around the Pacific Ocean with
migrating Sooty Shearwaters
My talk will focus on the journeys of sooty shearwaters
that migrate from breeding colonies in New Zealand to the
North Pacific. These birds conduct one of the longest
migrations yet recorded. These birds appear in great numbers
(100’s of thousands) off Alaska, Japan, and California
during our summer time. In fact, these birds exist in a
perpetual summer by chasing resources in each hemisphere at
the optimal time of year.
Born and
raised in San Diego, California, Scott obtained a B.Sc. in
Biology at San Diego State University. In 1993, he and his
wife moved to the San Francisco Bay area where Scott enrolled
in the graduate program at the University of California, Santa
Cruz. He eventually earned a M.Sc. in Marine Science (1996)
and Ph.D. in Biology (2000) from UCSC. Scott is currently an
Assistant Professor at California State University, San
Bernardino. He studies the foraging ecology and energetics of
seabirds for the Tagging of Pacific Pelagics (TOPP) program.
Scott’s research has taken him to Alaska, Svalbard (Norway),
the French Antarctic Territories, Antarctic Peninsula, New
Zealand, Mexico, the Northwestern Hawaiian Islands, and
Palmyra Atoll. Although most of Scott’s research has been
conducted on albatrosses and petrels, more recently he has
begun studying boobies and gulls. One of his fondest memories
of fieldwork was studying pigeon guillemots for the US Fish
and Wildlife Service while stationed at Naked Island, Prince
William Sound, Alaska (summer 1997). "Prince
William Sound is one of the most amazing places I have ever
been to. The Chugach Mountain Range is a spectacular backdrop
along the Sound." His area of expertise is
the ecology and physiology of seabirds and marine mammals
using electronic tags to study movement, distribution, and
behavior of individuals as well as various methods to measure
energy expenditure and effort in free-ranging animals. Scott has a daughter and
son, whom he hopes one of which will follow in his footsteps
(or play Major League Baseball).
Background Reading: Migratory
shearwaters Integrate oceanic resources across the pacific
Ocean in an endless summer
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Robert Suydam, Movements
and distribution of beluga whales with a focus on the eastern
Chukchi Sea stock.
Beluga whales have long been regarded as coastal, shallow
water marine mammals that are closely associated with sea ice.
As with many wildlife studies, once satellite tags were
attached to belugas, our understanding of their movements and
behavior changed dramatically.
Animals from approximately half of the 29 recognized
stocks have been have been tracked by satellite.
More than 200 beluga whales worldwide have so far been
tagged. In Alaska
there are 5 stocks: Cook Inlet, Bristol Bay, eastern Bering
Sea, eastern Chukchi Sea and Beaufort Sea.
Whales have been satellite tracked from all but the
eastern Bering Sea stock.
I will focus on movements of eastern Chukchi Sea whales
but will also provide examples of movements of belugas from
subarctic stocks that do not migrate as far as the more
northern stocks. Near
the village of Point Lay, 26 animals have been live-captured
and tagged, including 13 and 5 adult males and females,
respectively, and 4 each of subadult males and females.
In 1998, we were surprised at the movement of the
tagged animals when three large males moved north to 80o,
halfway between the northern coast of Alaska and the North
Pole. At
this northerly location, the water is approximately 12,000
feet deep and almost completely covered with ice.
The second year of tracking belugas was just as
surprising. Two
whales traveled exactly the same route to the same northerly
location despite the lack of apparent navigational features.
All of the animals that traveled to the far north were
adult males. Females and younger animals tended to remain near
the shelf break of the Beaufort and Chukchi seas.
In 2007 and 2008, we had a transmitter remain attached
to an adult male for more than 13.5 months revealing the
winter location for the first time.
That beluga spent the winter northwest of the Saint
Lawrence Island in the northern Bering Sea.
Satellite tracking belugas from the eastern Chukchi Sea
has shown that belugas travel much greater distances, much
farther north, and into much deeper water than previously
imagined. Information
from satellite tracking of belugas through the Arctic and
subarctic will provide useful information for understanding
and predicting impacts from climate change, oil and gas
exploration and development, and other human activities.
Roberts first trip to the Arctic was in 1988 when he
traveled north from California to study Black Guillemots, a
small seabird, in a colony about 20 miles east of Barrow.
Studying the breeding behavior of guillemots was for
his Master’s degree from the University of Alaska Fairbanks.
In 1990 he was offered a Wildlife Biologist position
with the North Slope Borough, Department of Wildlife
Management (NSB) and has been living in Barrow since then.
Robert was hired to be the bird specialist for the NSB
but quickly got involved in studies of bowhead and beluga
whales. Most of
the biologists working for the NSB have gotten involved with
studying whales to some degree because whales are such an
important part of the culture and lifestyle of the Inupiat
people living in the north.
Robert has been fortunate enough to spend many years
studying the life history traits, population dynamics and
movements of beluga whales, primarily working with the hunters
at Point Lay, Alaska.
They have sampled and measured more than 600 belugas over the
years. In addition
to working closely with the hunters, he has also been
privileged to work with other beluga biologists from across
the Arctic. Robert
is currently finishing his doctoral degree at the University
of Washington studying belugas.
In recent years, climate change and growing interest in
oil and gas exploration and development have occupied a great
deal of his time. They
use information from bowheads, belugas and birds to guide
industries’ activities so they will have as little impact on
the animals and the people of the north. Robert's area
of expertise has been Bowheads, belugas and birds with a focus
on life history traits, population dynamics and movements.
Robert says that the great thing about Alaska is its
variation in scenery, environments, weather, and people.
The big sky country of the north offers unobstructed
views (and wind) and wildlife populations that are
unparalleled. The
big trees and mountains of southeast are spectacular.
The areas in between provide fascinating sights,
history and adventures. He
hase not yet been to a place in Alaska that he didn’t like
or find intriguing. If
he had to make a decision about his favorite place in Alaska
it would have to be the places he has not yet visited.
Background Reading: Distribution
and Movements of Beluga Whales from the Eastern Chukchi Sea
Stock During Summer and Early Autumn
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