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2005 Symposium Speakers
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Gail Blundell,
Ph.D.
"Investigating Harbor Seal Declines in Alaska"
Harbor
seals have declined in parts of Alaska since the mid 1970s,
while seal populations in other areas of the state remained
stable or increased. Genetic
data indicate that movements of individuals between areas cannot
explain the declines. Fluctuations in population abundance can
be evaluated by estimating survival and reproduction, and
quantifying effects of proximate factors (e.g., diet, health,
and condition) on those vital rates. In 2003 we initiated
long-term research in two areas of Alaska where seal numbers
have declined by
>65%. We are in the early phase of these long-term studies
therefore this talk will share some of the techniques that we
use for this study and our companion studies, conducted in
collaboration with other agencies, which assess genetics,
movements of seals, and dive behavior relative to prey
availability, diet, and condition.
Gail Blundell is the principal investigator for the Alaska
Department of Fish and Game Harbor Seal Research Program. She
made her transition gradually from terrestrial to marine
mammals, beginning in the late 80’s studying pumas, geoffroys
cats, and foxes. In the early 90’s she worked as a technician
for ADF&G studying marten, and Alexander Archipelago wolves, and
then returned to graduate school to study a “closet marine
mammal” – river otters inhabiting marine environments. While in
graduate school she worked as project leader on the river otter
component of a large ecosystem research project (the Nearshore
Vertebrate Predator [NVP] project), assessing lingering effects
of the Exxon Valdez oil spill on four top predators in
the nearshore system. Concurrent with that work she collected
data for her doctoral study, assessing form and function of
social groups and patterns of gene flow among populations of
river otters in Prince William Sound. Gail received her Ph.D.
from UAF in 2001. In 2002 Dr. Blundell assumed the lead for ADF&G’s
Harbor Seal Research Program. The main focus of this program is
to design and implement research to identify factors
contributing to the dramatic declines in harbor seal numbers
that have occurred in some areas of Alaska, as well as
documenting population trends for harbor seals throughout the
state.
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Jennifer Burns, Ph.D.
"Diving for Dinner: how marine mammals make a
living underwater"
In this talk Dr. Burns will present the
adaptations that marine mammals have that allow them to dive
deeply and stay submerged for long periods of time, and will
then share findings from her research on the foraging behavior
of Steller sea lions.
Jenn has been
affiliated with the University of Alaska Anchorage since 2000
where she runs a lab with 3 current grad students, and has
graduated 4 (all now working in AK in marine mammals!)
Her research focuses on understanding how the age and
physiological status of juvenile marine mammals influences their
diving and foraging capacities, and on how differences in rates
of physiological development impact life history traits.
Jenn received her BS in Marine Biology and Zoology from
University of California Berkeley, MS from School of Fisheries
and Ocean Sciences (timing of pupping and molt in harbor seals
in WA), University of Washington, her PhD from University of
Alaska Fairbanks (development of diving behavior and physiology
in weddell seals in antarctica) and post-doc at UC Santa Cruz
(physiological development of harbor, harp & hooded seals). She
now lives now in Eagle River with husband and 2 dogs and is also
interested in hiking, skiing, skijoring, snowshoeing, cooking...
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John Calambokidis,
"The SPLASH project:
An ambitious collaborative study of the status of humpback
whales in the entire North Pacific"
John will describe the SPLASH humpback whale research program
and the results obtained to date. SPLASH is an ambitious
international collaborative research effort to examine the
movements, populations size and trends, and human impacts on
humpback whales in the entire North Pacific.
John Calambokidis is a Research Biologist
and one of the founders of Cascadia Research, a non-profit
research organization based in Olympia, Washington formed in
1979. He periodically serves as an Adjunct Faculty at the
Evergreen State College teaching a course on marine mammals. His
primary interests are the biology of marine mammals and the
impacts of humans. He has authored two books on marine mammals
(on blue whales and a guide to marine mammals) as well as more
than 50 technical reports and publications in scientific
journals. He has conducted studies on a variety of marine
mammals in the North Pacific and long-term research on blue,
humpback, and gray whales.
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Mike Castellini, Ph.D.
“Take two seals and call me in the morning…marine mammals,
medicine and you”
This talk will focus not so much on marine
mammal medicine (veterinary or disease), but rather on the
remarkable physiological and medical differences between marine
mammals and humans. For example, did you know that seals hold
their breath while sleeping, for up to 14 min? Is this important
for the study of SIDS? Or, that they can consciously drop their
heart rate by 90%? Could you do that even with years of yoga
training? How about the fact that their blood red cell count can
be so high that it almost turns to glue? How do they circulate
blood that thick? We will explore a suite of interesting
medical and physiological “tricks” that have been discovered in
these remarkable animals.
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 and is
currently the Director of the Institute of Marine Science at UAF.
Mikes research focus is 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 is also involved in local, state and National panels
and committees dealing with policy issues related to marine
mammals, ecosystem management and agency oversights.
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Dan Costa, Ph.D. "Utilization
of the North Pacific By Marine Mammals and Others Top Predators:
Tagging of Pacific Pelagics: Using Electronic tags to discover
Hotspots in the Pelagic Realm"
Tagging of Pacific Pelagics is using electronic tags to track
mako, salmon and white sharks, elephant seals, bluefin and
yellowfin tuna, black-footed and Laysan albatross, California
sea lions and leatherback sea turtles in the North Pacific.
Results indicate that frontal features associated with the North
Pacific Transition zone and the California Current are the major
features these animals use.
Dan is currently a Professor of Ecology and Evolutionary Biology
at the
University of California at Santa Cruz. After completing his
Ph.D. working
with sea otters at UCSC in 1978 he went to the Scripps
Institution of
Oceanography were he completed postdoctoral research. He
returned to UCSC
in 1983. From 1991-94 he served as a scientific officer at the
Office of
Naval Research he initiated ONRs program on marine mammal
biology. His
research focuses on the integration of physiology, behavior and
ecology. He
research focuses on physiological and ecological adaptations
that enable
mammals and birds to survive in the ocean. His research as taken
him to the
far reaches for the globe from the Arctic to the Antarctic, from
Australia
to the Galapagos. He has worked with almost every marine mammal
group
including dugongs, sea lions, fur seals, sea otters, seals,
dolphins and
whales. He is currently a lead principal investigator of the
Tagging of
Pacific Pelagics program, a multidisciplinary program to tag and
track 22
different species of apex pelagic predators in the North Pacific
Ocean.
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Brian Fadely, Ph.D. “Should I Stay or Should I Go: The
Contrasting Ecology of Northern Fur Seals and Steller Sea Lions
in Alaska” Steller sea lions and northern fur seals breed
and feed in Alaskan waters, yet have very different strategies
for foraging and raising young, and fur seals migrate into the
northern Pacific Ocean where they are pelagic all winter. Both
species have undergone large population declines over the past
30 years, and have been the focus of significant research
efforts. Comparing sea lion and fur seal biology might provide
insights into unraveling complicated ecosystem processes in the
Bering Sea.
Brian leads the Alaska
Ecosystems Program Foraging and Physiology Studies Group at the
National Marine Mammal Laboratory in Seattle, Washington. Their
research integrates tracking fur seal and sea lion foraging
behavior with assessments of health and condition, dietary
habits, and population dynamics to understand factors
contributing to population declines of both species in Alaska.
Brian received his Ph.D. from the University of Alaska,
Fairbanks in 1997, and except for a brief stint working on
wildlife management and policy issues in Juneau, Alaska, has
focused on studying the physiological ecology of seals, sea
lions, and seabirds (hey, why not?) in both hemispheres.
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Janet Neilson, "Humpback Whale Entanglement in
Fishing Gear in Southeastern Alaska."
Every year a handful of humpback whales are reported entangled
in fishing gear in southeastern Alaska, but the real magnitude
of the problem is unknown because not all entangled whales are
seen or reported. Luckily, the scarring patterns created by gear
are unique, which allows researchers to assess whether or not a
whale has been entangled in the past. Janet will share what she
has learned about humpback whales by studying their scars.
Janet started out studying whales in New
England in 1992. She has been lucky enough to study most of the
world’s large whale species on projects ranging from Alaska to
Antarctica. Since 1997 she has worked as a whale biologist at
Glacier Bay National Park. She received her Bachelor of Science
from Cornell University in 1993 and is currently working on a
Master’s degree in marine biology at the University of Alaska
Fairbanks. Her main interests are population dynamics,
behavioral ecology and human threats to marine mammals. She
lives in Gustavus, Alaska.
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Richard Nelson, Ph.D. - Keynote Speaker
"Left-Handed Polar Bear" Nels is a cultural anthropologist
and creative nonfiction writer whose work focuses on human
relationships to the natural world. He was born in Madison,
Wisconsin, attended the University of Wisconsin, received a
doctorate in Anthropology from the University of California,
Santa Barbara, and an honorary doctorate in Humane Letters from
the University of Alaska Southeast in 2004.
He has spent many years studying
relationships to the environment among Inupiaq
Eskimos and Athabaskan Indians in northern Alaska. His books
include Make Prayers to the Raven, Hunters of the Northern
Ice, Shadow of the Hunter, and The Island Within, recipient of
the John Burroughs Medal for nature writing. Nelson's latest
book, Heart and Blood: Living with Deer in America, received the
Sigurd Olson Nature Writing Award. He was granted a National
Endowment for the Arts Fellowship and received the 1995 Lannan
Literary Award for creative nonfiction writing. In 1999-2001 he
served as the Alaska State Writer (this state's equivalent of
Poet Laureate). He holds an Affiliate Professorship at the
University of Alaska Southeast. He is an avid outdoorsman and a
conservation activist, working for protection of old growth
rainforest in the Tongass
National Forest.
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Anne Salomon MSc, BSc(Hons), "Ecological Detectives;
Uncovering the causes and consequences of shellfish declines on
the tip of the Kenai Peninsula"
The Sugpiaq natives of the Kenai Peninsula
have observed dramatic changes in their ocean home over the last
century. The story is a familiar one; benthic shellfish
which were once plentiful have declined. Sea urchin, crab,
shrimp, clams and cockles are now fewer in number and smaller.
The most recent invertebrate decline is that of the black
leather chiton, an intertidal mollusk and known keystone grazer.
What has caused these declines and what are their consequences?
As ecological detectives, tribal elders, an anthropologist and a
marine biologist have collectively begun to provide the clues.
Fortunately, uncovering these clues and building these
partnerships is the first step towards inspiring solutions for
sustainable marine ecosystems in the future.
Anne is a Doctoral Student, University of Washington,
Department of Biology. Her current research interests lie
in the human alteration of coastal food webs and the effects of
harvest on the trophic dynamics of nearshore rocky reef
ecosystems. In collaboration with two native villages on the
outer Kenai Peninsula, Alaska, she is investigating the relative
roles of shoreline harvest and natural factors leading to recent
localized declines of Katharina tunicata, an important
intertidal subsistence resource known locally as a 'Bidarki'.
In New Zealand, she is examining the ecosystem-level
repercussions of harvest on subtidal reef communities using
marine reserves as unfished controls. Specifically, they
are investigating the indirect effects of fishing on kelp
production and the role of kelp derived organic carbon in
secondary production.
More information on Anne Salomon can be found at:
http://depts.washington.edu/jlrlab/anne.html
http://www.conservationinstitute.org/fellowsalomon.htm
http://protist.biology.washington.edu/bio2/people/bio.html?parecID=323
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Aaron Thode, Ph.D. "Acoustic observations
of sperm whale longline depredation off Sitka, Alaska."
The talk will concern methods for tracking
sperm whales under water using towed arrays and longline fishing
gear.
Aaron Thode grew up in the mountains of
northern New Mexico, and did not see the ocean on a regular
basis until he started graduate school in San Diego in 1994.
After getting his PhD at Scripps Institution of Oceanography in
1999, with a thesis topic on advanced acoustic tracking of blue
whales, he did a two-year post-doc at MIT before returning to
Scripps in 2001. He is currently an Associate Researcher at
Scripps with an interest in using underwater sound to study
marine mammals. He spends a lot of time developing means for
tracking whales underwater, and his methods have been used in
the Gulf of Mexico, and recently off Sitka. He loves to hike,
run, kayak, and SCUBA, and tries to play the guitar on occasion.
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Jorge Urbàn, Ph.D.,
"Knowledge and conservation of eastern Pacific gray whales in
their breeding and calving grounds"
The talk includes the
whaling history and conservation efforts in the breeding
lagoons. How the gray whales use the lagoons (biological and
ecological factors), including the actual legislation and the
main conservation concerns.
Jorge was born in
Mexico City. He received his Ph. D. from the National
University of México (UNAM). He began his research on whales
since 1982, when he initiated the first long term study on
humpbacks in Mexico. Jorge has presented papers on this topic at
more than 65 international meetings, and has written more than
45 scientific publications about the great whales and dolphins
of the Gulf of California. He has special interest on the fin,
humpback and gray whales, as well of beaked whales from the
Mexican Pacific. From 1991 to 1993 he was president of the
Mexican Marine Mammalogist Society (SOMEMMA). He is member of
the Scientific Committee of the International Whaling
Commission, and of the Cetacean Specialist Group of the IUCN.
Actually Jorge is the Coordinator of the Marine Mammal Research
Program of the Universidad Autónoma de Baja California Sur (UABCS)
at La Paz, México.
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Alexander Werth, Ph.D.,
"Straight, No Chaser:
How Toothed and Baleen Whales
Swallow Food Without Seawater."
Cetaceans are classified into two suborders (baleen and toothed)
primarily on the basis of feeding morphology and behavior.
However, much of what we hold to be true about whale feeding is
insufficient or incorrect. For example, many "toothed" whales
have few functional teeth, and although baleen whales capture
prey in a "whalebone" filter, we are still learning how the
tongue and other oral structures function in capturing,
processing, and swallowing food. This talk aims to correct
misconceptions and reveal how much we have yet to learn about
whale feeding.
Alex Werth is Elliott Professor of Biology at Hampden-Sydney
College in Virginia, where he studies marine mammal anatomy,
ecology, and evolution and teaches anatomy, physiology,
evolution, and bioethics. A Massachusetts native, he earned his
BS degree from Duke University, where he studied at the Duke
Marine Laboratory, and his PhD from Harvard University, where he
studied dolphin and porpoise morphology and worked in the
stranding/autopsy program of the New England Aquarium, Boston.
In 1992 he completed a brief postdoctoral fellowship with the
North Slope Borough Department of Wildlife Management in Barrow,
studying the morphology of bowhead whales. This fall he is a
Visiting Scholar at the Darling Marine Center of the University
of Maine. His talk at the WhaleFest will outline his continuing
research on foraging methods and feeding mechanisms in both
toothed and baleen whales.
More information on
Alex Werth can be found at:
http://www.hsc.edu/directory/facpro
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