Remembering John Liston

September 6, 1926–March 17, 2021

We thank the Liston family and SAFS faculty and students for their contributions to this memoriam. Some content was adapted from The Seattle Times obituary published on May 16, 2021.

John Liston, an esteemed microbiologist and retired member of the UW Fisheries faculty, passed away on March 17, 2021. John was renowned for his work on foodborne microbes and marine microbiology. He mentored numerous graduate students and played a key role in the professional development of several women scientists, including Dr. Rita Colwell (PhD 1961) and SAFS Professor Emerita Frieda Taub (PhD 1959, Zoology, Rutgers).

John was born and raised in Edinburgh, Scotland. He attended the University of Edinburgh, where he met his wife, Doris. He earned his PhD in Microbiology at the University of Aberdeen Scotland in 1955 and was offered a faculty position at UW Fisheries in 1957. He accepted the offer and moved his family to Bothell, Washington.

When John joined the Fisheries faculty, a food science division already existed. Under his direction, that division developed into the Institute of Food Science and Technology (IFST) in 1969, and John led the unit until retiring in 1989. Initially, research at IFST was focused on seafood microbiology issues, including better canning methods to prevent botulism and improved shelf life for fresh fish.

IFST’s research scope expanded greatly under John’s leadership. A new direction focused on detecting mutagen formation in processed foods, while another investigated different feed ingredients and formulations, and feeding strategies for coldwater fish aquaculture.

During John’s tenure as director, the IFST faculty included four women. SAFS Emeritus Professor Frieda Taub noted, “Besides supervising female doctoral students, John was instrumental in recruiting Barbara Rasco, Faye Dong, Barbee Tucker, and me to Fisheries faculty positions. This was unusual at UW.”

During Frieda’s time at Fisheries, John became her mentor. She said he “fought hard for my promotions, eventually to full professor with tenure in 1971.” Notably, many of his female graduate students and staff went on to successful careers in science, including serving on college faculty at a time when that was rare.

John also supported basic science in oceanography. He supervised graduate student John Baross (PhD 1973; currently UW Oceanography faculty) in his study of deep-sea microbes. John said, “His breadth of knowledge was impressive, and he supported my research ideas despite them not being funded through his projects. I always looked forward to lunch walks along Lake Union, where we would discuss science, literature, philosophy, or whatever came up at the moment.”

Perhaps less well known were John’s efforts to address “brain drain” of foreign students who did not return to their home countries, where they were needed to help improve food security and safety. Frieda said, “He developed programs that brought students here for short time periods, and faculty went overseas to teach short courses.”

John’s research led him to pursue microbiology studies in places such as Iran, Brazil, Chile, Peru, Latin America, and many European nations. He was a prolific writer, having published or co-authored more than 150 scientific papers on fisheries microbiology and technology.

John and Rita

Rita Colwell is one of John’s more renowned former graduate students. After earning her PhD (1961), focused on microbiology under his direction, she served on UW Fisheries’ research faculty before eventually becoming the first woman director of the National Science Foundation (1998–2004). Rita reflected: “John was not your typical professor. He trusted me to set up his microbiology lab.” When John arrived at UW, he actively explored new technologies and new ideas: “As a result,” said Rita, “we were the first to apply computer analysis to marine bacteria.” She added, “He encouraged his students to read classic literature and poetry. He also had a beautiful singing voice and often performed at parties.

Another student of John’s—Marleen Wekell (PhD 1975)—said, “John treated all students equally well regardless of gender or ethnicity. He was an effective mentor for all of us.” Marleen added, “He always insisted his students defend their positions with data and logic and often took an opposing view to see how we would fare under scathing criticism. This experience served us well.”

Faye Dong, who retired in 2012 from her position as head of the Department of Food Science and Human Nutrition, University of Illinois, Urbana–Champaign, was on the IFST faculty during John’s directorship. She noted: “He was a wonderful mentor and model for young faculty. He was highly respected in the fields of food microbiology, marine microbiology, and food technology.”

Faye further confirmed John’s exceptional support of women in science: “He provided professional support and opportunities for women faculty members—including Barbara Rasco and me—equivalent to what he provided for male faculty members.” Faye added that John never asked anyone to do anything that he was not willing to do himself—be it to teach a class, mentor a student, or serve on a committee.

Barbara Rasco (currently dean of Agriculture and Natural Resources at the University of Wyoming) said, “John focused on ensuring that scientists were well rounded—experts in their field, but with a solid grasp of how the research fit into a multidisciplinary context before this was in vogue.” Barbara commented on his sense of humor: “He was serious without taking anything too seriously.”

John was a family man and enjoyed hiking, camping, fishing, and skiing with his three children and four grandchildren. His daughter, Fiona, spoke about his dry sense of humor: “He threatened to grade his graduate students’ papers by tossing them down the stairs and giving the highest grades to those that fell the farthest!”

Despite his wicked humor, Fiona said, “Dad had a very positive outlook on life and was kind in all things. He gave to every charity that solicited from him.” She spoke to John’s championship of women’s rights: “I was surprised to read that this was even a “thing” because he never thought to treat different genders or cultures differently. People were just people to him, and we grew up with this, so it just felt natural.”

John is survived by his daughters, Rosalind Liston-Riggs and Fiona Liston, and son, John D. Liston, and four grandchildren.

The Liston family requests that charitable donations in remembrance of John be made to Habitat for Humanity.


Remembering Richard (Dick) Ralph Whitney

June 29, 1927–March 17, 2021

Thanks to Dick’s family and many students, colleagues, and friends for their contributions to this memoriam. Some content was adapted from an obituary published by Dignity Memorial https://www.dignitymemorial.com/obituaries/snohomish-wa/richard-whitney-10114346.

On 17 March 2021, Richard (Dick) Whitney, SAFS professor emeritus, passed away at the age of 93.

Dick was born in Salt Lake City, Utah, and after a stint in the Navy towards the end of World War II, he completed a BA (1949) and an MS (1951) in Zoology at the University of Utah. Dick obtained his PhD (Population of Walleye (Stizostedion viteum) in Clear Lake, Iowa) at Iowa State  University in 1955.

Following his PhD studies, Dick worked at UCLA (1954–1957), the Chesapeake Biological Laboratories (1961–1967), and the then Bureau of Commercial Fisheries in La Jolla, California, where he was the acting assistant administrator (1967). The Washington State Coop Unit (now the Washington Cooperative Fish and Wildlife Research Unit) was formed in 1967 as a fisheries-only unit within the  University of Washington College of Fisheries. At the time, the Washington Coop Unit was one of 23 across the country (there are now 40). Dick was appointed as the first unit leader and as associate professor without tenure (WOT), and he established the unit and its mission. He was promoted to professor in 1973, and retired from federal service in 1983/84, remaining as a professor WOT until 1993. Dick noted that he retired from the USGS after 21 years because he was asked to move to a new duty station in Washington, DC, and he chose to stay in the Pacific Northwest.

Dick, Mary Lou, and their dog Cassie in 1995

The main objectives of the original Washington Coop Unit were to train fishery biologists and have graduate students and unit personnel conduct research and extension activities. Dick’s first graduate students were Aven Andersen (PhD 1971), Duane Braaten (PhD 1970), and Brian Alee (PhD 1974). Early projects through the Coop included studies of the behavioral interactions between juvenile coho salmon and steelhead, angler participation and satisfaction in the trout sport fishery, and quantification of water temperature and migration of American shad. Dick was an early supporter of multidisciplinary studies, including work on Findley Lake in 1970 as part of the International Biological Program.

Dick Whitney and Assistant Unit Leader Richard Wydoski published Inland Fishes of Washington in 1979 (2nd edition 2003), a reference describing the distribution, life history, simplified pictorial keys, and photographs of 74 native and introduced species in Washington. SAFS Professor Tom Quinn noted that he still makes use of the volume.

In 1974, Dick was appointed to serve as a technical advisor to the Honorable Judge George H. Boldt in the Indian Treaty Fishing Rights Decision (aka US v. State of Washington or the Boldt Decision). In a 2008 article in Council, Dick noted that he had a member of the Colville Tribes as a student, and they nominated him. When Judge Boldt called him, Boldt said “Well the thing I like about you is that you’re working with all the parties to this dispute… I want somebody who can work with those people, talk to them, get them to reach agreements on how to manage the fish.” Dick emphasized the importance of the Boldt Decision because while previous decisions had concluded that the Tribes were entitled to a share of fish, the amount was not specified. In contrast, Judge Boldt decided that the split was 50:50 (because the parties could not reach agreement themselves). Following the decision, Dick was requested to provide advice on fishery problems and was appointed chair of the Fisheries Advisory Board to advise the court “on technical aspects of the case and make recommendations on questions of management and regulation of the resource.” Learn more about the decision and its background in this video of a conversation between Dick and Billy Frank Junior (Nisqually Tribe – environmental leader and treaty rights activist) in 2013. Dick gave his last seminar at SAFS in May 2014 (“My fisheries management experience with Judge George H. Boldt in his case, United States v. The State of Washington”) in which he discussed his involvement in the case and his subsequent work resolving fishing disputes.

In his role as a faculty member in SAFS, Dick taught a class on fisheries management. He was also a member of numerous very influential committees, supporting fisheries and fisheries management, including a stint as a member of the inaugural Scientific and Statistical Committee of the Pacific Fishery Management Council (Ed: SAFS has continued its participation on this committee and that of North Pacific Fishery Management Council), as commissioner of the Salmon and Steelhead Advisory Committee (1981–1984), and as chair of the Scientific Review Group for the Bonneville Power Administration (BPA) (1989–1994). Dick also chaired the mid-Columbia Coordinating Committee, which was established when the resource agencies and Tribes sued the Columbia River public utility districts because of the effects of their dams on fish survival.

Salton Sea 1957

Dick’s former graduate students spoke about the positive influence he had on their education and careers. “Dr. Whitney was a supportive advisor. He encouraged me and all the members of the unit in our academic studies, research, and personal lives,” recalls Russ Nelson (MS 1977).

“I learned how to identify all of the local species and how to collect basic field data. But, it was the personal time spent with Dr. Whitney that was my most valuable lesson,” said Fred Olney (MS 1975). Fred added, “when I was first called to testify in front of Judge Boldt, I walked into that hearing room, and there was Dick Whitney sitting near Judge Boldt off to the side in the jury box. Our eyes met and he gave me his usual big and reassuring smile and my confidence came back immediately.“

Chuck Peven (MS 1990) recalled two of Dick’s sayings: “There is always an answer.” “Dick would pull that one out when I came across some obstacle that was halting my progress. It was his kind and subtle way of encouragement,” Chuck said. The second was, “Where is the romance factor?” (Dick’s response to push Chuck to find “more” in the data he collected).

“He was an inspiration to me based on his work with racial and social justice of the black community in society, and he inspired me to work on Indian fishing rights against the establishment as a matter of social justice,” said Brian Allee.

Dick in 1982

Phil Mundy (PhD 1979) recalls Dick’s expertise with complex problems during his time on Independent Scientific Group (ISG) for Bonneville Power Administration (BPA) and the Power Council: “Once again, Dick’s equanimity came shining through, as the ISG considered scientific proposals for funding that addressed keeping salmon populations alive within the hydroelectric system. As was the case in US v. Washington, solving problems was made more challenging by the highly charged political environment, the large amounts of money at stake, and the number of powerful institutions involved. Dick’s presence helped us through many tough spots.“

Jeff Laufle (MS 1982) noted that Dick was a wonderful mentor and friend, and his advice was helpful and well-considered. Dick and his wife entertained Jeff and other Coop people at their home near Seattle, then later at the log home they built near Leavenworth, WA. “Better and more gracious hospitality than theirs is hard to find,” recalled Jeff.

Dick was extensively acknowledged by his peers, the profession, and the broader community in many ways, but four stand out: a 1979 letter of thanks from Senators Magnusson, Jackson, and Packwood and Representatives Pritchard, Bonker, Dicks, Swift, and Lowry, recognizing the quality of his testimony on the status of anadromous fish in the Pacific Northwest; a signed photograph from George Boldt, who expressed his “deep appreciation for outstanding service to the court;” a blanket made by Northwest Indian Tribes presented during the Tribal Celebration of the 40th Anniversary of the Boldt Decision in 2014; and a shark species (the Humpback smooth-hound Mustelus whitneyi), named after him by a former student.

Dick was preceded in death by his wife, Mary Lou, and is survived by his children, Jennifer, Bill, Bob, and Gale, seven grandchildren, and ten great grandchildren.

 


SAFS Spring / Summer 21 Newsletter – Director’s Message

André PuntDear Friends

It is now late summer, and the dog days seem to be behind us—even the blackberries seem to be fading away. We are starting to get ready for another academic year, with a new cohort of undergraduate and graduate students and, of course, new and ongoing challenges associated with the COVID-19 pandemic.

We lost three of our emeritus faculty in the last year. In this newsletter, we celebrate the lives and careers of Richard (Dick) Whitney, John Liston, and Glenn VanBlaricom. Dick Whitney was the first Unit Leader for the Washington Cooperative Fish and Wildlife Research Unit (WA Coop) and is well known for being the technical advisor in the case that led to famous Boldt decision. John Liston joined the faculty of the (then) School of Fisheries in 1957. He led the Institute of Food Science and Technology from its establishment in 1969 until his retirement in 1989. Our memorial article highlights John’s contribution to science and also his contributions to mentorship, in particular supporting the careers of female students and faculty. Glenn VanBlaricom retired only a few years ago, following a 30+–year career working for the federal government in several roles, including from 1993–2017 as the Assistant Unit Leader Wildlife in the WA Coop unit. Glenn’s research was multifaced, and he was as at home in the field studying abalone as he was in providing advice to the International Union for the Conservation of Nature on the gray whales in the Sea of Okhotsk.

We also lost of a great friend of SAFS: Tanya Bevan, wife of Don Bevan, passed away last year. Don (former SAFS Professor and Director) and Tanya met at Moscow State University in Russia, after which she moved to the USA. After Don’s death in 1996, Tanya established, and made a generous gift to, the Donald E. Bevan Endowed Fund in Fisheries in his memory.

Lisa and Jim Seeb joined the SAFS faculty in 2007 as Research Professors and retired at the end of 2020. They had very successful careers at the Alaska Department of Fish and Game, but the attraction of funding to extend their genetics program to Asian nations; the possibility of collaborating with the faculty, students, and staff associated with the Alaska Salmon Program; and the opportunity to work with graduate students was too great to resist. Learn more about what brought Lisa and Jim to SAFS, the highlights of what they did during their 13 years here, and their plans post-retirement in this issue.

We welcomed a new diversity specialist, Michael Martínez, on April 1, 2021. Michael has been learning about SAFS and providing opportunities to improve diversity, equity, and inclusion in our unit, including helping to facilitate our current equity audit.

Finally, this very packed newsletter also includes: news about a major award for SAFS Professor Jacqueline Padilla-Gamiño and articles about John Horne’s glider program, Josef Mayor’s capstone project about the effects of higher water flow events on salmon, and Martin Hall’s (PhD, 1983) experiences as a graduate student and an employee of the Inter-American Tropical Tuna Commission and his ongoing support of graduate students with the establishment of the Martin Hall Fellowship for Fishery Innovations in Sustainability.

Keep safe.

André


Remembering Glenn Richard VanBlaricom

16 April 1949– December 24, 2020

Thanks to Glenn’s many students, colleagues, and friends for their contributions to this memoriam. Some content was adapted from an article published in the February 2021 issue of Marine Mammal Science

On 24 December 2020, Glenn VanBlaricom, SAFS professor emeritus, passed away at the age of 71 following a long battle with thyroid cancer.

Glenn was born in Shelton, Washington, and obtained his BS degree (Oceanography and Zoology) from the University of Washington in 1972, and his PhD from UC San Diego in 1978 (thesis title: Disturbance, predation, and resource allocation in a high-energy sublittoral sand bottom ecosystem: Experimental analyses of critical structuring processes for the infaunal community). He joined federal service in 1977 as a wildlife biologist for the US Fish and Wildlife Service (USFWS). Glenn spent 16 years with the USFWS, working on the ecosystem-scale ecology of sea otters along the Big Sur coast of California and in Prince William Sound, Alaska. During his tenure with the USFWS, Glenn served as an associate adjunct professor in the Institute for Marine Sciences at UC Santa Cruz, where he taught courses in coastal marine ecology.

Glenn was informed about the newly created position of assistant unit leader-wildlife in the Washington Cooperative Fish and Wildlife Research Unit (WA Coop) by a friend and USFWS colleague, manatee biologist Tom O’Shea. In a 2015 interview, Glenn said, “Because I was a native of Washington and a UW graduate, a faculty position relating to marine sciences at UW had always been my dream job, and family issues centered in western Washington provided further incentive.” Glenn was appointed as an associate professor “without tenure” in the (then) School Fisheries. He retired from the US Geological Survey and UW in 2017.

Glenn taught a very popular class on marine mammalogy at UW. This class attracted students from all over campus, including Art, History, English Literature, and Drama, in addition to the marine sciences. Many today can attribute their interest in marine mammal science to their time in his class. Glenn also conducted a monthly series of seminars in Olympia that brought UW scientists involved in research on natural ecosystems to the state’s capitol for the benefit of state agency scientists and managers who were interested in research developments at UW.

“On the rocks” at San Nicolas Island. Photo from Josh London

One of the goals of the WA Coop is mentorship of graduate students, and during his 24 years as a UW faculty member, Glenn consistently maintained one of the largest labs. He was major professor for 17 PhD students and 26 MS students. Glenn’s former graduate students now work in natural resource research; in management and conservation; as university faculty; in local, state, and federal governmental agencies; in tribal resource management departments; at the United Nations headquarters in New York; and in private consulting firms. One of his PhD students, Kristin Laidre, is now a SAFS faculty member.

Glenn exploring tide pools. Photo: Josh London

Glenn’s interests covered multiple research themes and ecosystems. He published over 80 papers in peer-reviewed journals on topics as diverse as community ecology and conservation biology of nearshore marine environments, population and community ecology of marine mammals and shellfish, and the ecological consequences of offshore oil development. Glenn was also the author of three books on sea otters: The Community Ecology of Sea Otters (1988), Sea Otters (2001), and Sea Otter Conservation (2015).

Glenn’s service to conservation and management was extensive. For example, he was a member (and chair) of the Endangered Species Act Black Abalone Recovery Team, and a member of the Western Gray Whale Advisory Panel, a program of the International Union for the Conservation of Nature involved in mitigating the impacts of expanding Russian development of offshore petroleum resources in the summer feeding grounds of the western gray whale population in the Sea of Okhotsk.

Many of Glenn’s students and colleagues highlighted his impact on their careers. Sue Moore (UW Center for Ecosystem Sentinels) noted that she first met Glenn when he was a graduate student at UC San Diego and she a marine research assistant, sorting benthic invertebrates in Paul Dayton’s lab. Sue says she was “loaned” to Glenn to help sort the many benthic core samples he’d taken both in and adjacent to bat ray pits in the shallow waters near Scripps Pier. What she remembers of those days was the fun and camaraderie that Glenn brought to his work, both in the lab and during his many dives to “collect bugs.” Glenn’s love of research is echoed in  a comment by Amanda Bradford (MS 2003, PhD 2011) who went with Glenn to San Nicolas Island off California to assist with his long-term research project on black abalone. “Although I had already been in his lab for a few years, I saw this side of him that I had not seen before. The phrase ‘kid in a candy store’ comes to mind, except he was an established professor crawling around the intertidal zone. His intimate knowledge of the ecosystem brought it into sharp focus, and his enthusiasm was infectious,” she said.

Glenn receiving a plaque in honor of his 26 years of service to the Cooperative Research Units during the 2017 WACFWRU Business Meeting in Olympia (June 2, 2017. From left to right: Liz VanVolkenburgh, Chris Grue, Sarah Converse, Ken Warheit, Glenn, Richard Bigley, Verna Blackhurst, Andre Punt, and John Pierce

Tony Orr (PhD 2011) commented: “Glenn was my PhD advisor and my friend. I was always impressed by his knowledge about various aquatic ecosystems, how articulate he was while giving lectures in the classroom or presentations at conferences, and how prolific he was providing data and information to the scientific and academic communities. He was ahead of his time concerning diversity and inclusion issues. Glenn was an inspiration, and I will be eternally grateful for the opportunities he provided to me. He may be gone but his memory and impacts live on.”

Laura Hoberecht (PhD 2006) highlighted Glenn’s professionalism: “While at SAFS, I worked with Glenn on beluga population dynamics and sea lion diets, and as my career developed, our paths crossed while investigating the effects of geoduck farming on the environment. In my experience, Glenn never advocated for any particular policies for the systems he studied, but instead prioritized communicating the results of his research to resource agencies to inform and guide their management decisions. With this approach, he made a difference in the protection and conservation of marine resources, while never compromising his scientific integrity.”

Glenn is also remembered for his generosity towards his students on a personal level. Alex Zerbini (PhD, 2006) commented, “Glenn made all the efforts to make sure international students felt at home. I’ll never forget the moment I left the plane the day I arrived in Seattle, just before starting at SAFS. Glenn was at the airport waiting for me with a whale sign in his hand, and my name written on it. He made me feel welcome from day one. During my first months here, he and Kris (Glenn’s wife) constantly checked how I felt adjusting to a new country. He was a kind man with a big heart.”

Glenn was recognized through multiple awards, including an Excellence in Scientific Communication Award from the Society of Mammalogy, a Natural Resource Response Award from the US Department of the Interior, and the Dr. Betty S. Davis Conservation Award from the Friends of the Sea Otter.

Glenn is survived by his wife, Kristina, two daughters, Christy and Betsy, and five grandchildren.

Glenn with a seal. Photo: Josh London

Model reveals new details about the relationship between seabirds and forage fish fisheries

A large school of sardines. iStock

Forage fish, like anchovies and sardines, are a dietary staple for seabirds. Around the globe, seabirds have adapted in order to cope with natural changes in the availability of these prey fish. However, increased fishing pressure on these forage species is thought to be altering this predator-prey relationship in an adverse way for seabird populations. The natural ability of seabirds to cope with changes in prey abundance makes it difficult for researchers to determine if they are responding to natural processes or to human fishing practices.

Previous research has predominantly explored the potential impacts of forage fisheries on seabirds by using ecosystem models that simplify seabird-forage fish dynamics. For example, past models may have averaged the behaviors of many different species of seabirds and rarely focused on an individual species or population.

To address this management issue and separate whether the impacts were the result of natural variability in seabirds or fishery activity, a team of researchers from the University of Washington School of Aquatic and Fishery Sciences (SAFS) took a closer look at seabird life history and forage fish harvest policies.

The research team, led by SAFS postdoctoral researcher Laura Koehn, developed a new structured population model that can be tailored to fit specific seabird populations, providing a new level of detail to the seabird–forage fish dynamic. The results were published July 4 in Ecological Applications.

“In the models we created we tried to address multiple ways seabirds could be affected by focusing on different seabirds and their lifestyles and incorporating more details about their individual life histories,” said Koehn. “So we were thinking about things like diet specialization; which seabirds prefer anchovies or sardines versus seabirds that are more generalist.”

In addition to diet, the new model also looks at age, reproductive strategies and success, and age-specific prey needs. The team also explored how the intensity of fishing pressure impacted seabirds within these frameworks.

Both anchovies and sardines make up a large portion of Magellanic penguin’s diets. iStock

In one simulation, the model showed seabirds that were somewhat restricted by reproduction, foraging range, and specialized diets experienced a decrease in population, and in some cases, extinction, due to constant fishing pressure. Conversely, seabird populations that lay more eggs, wider ranges, and a more generalist diet, did not experience the same adverse reactions to fishing pressure. 

The sensitivity in these responses was mainly due to the availability of prey rather than other life history characteristics. Particularly, the more restricted seabird population was highly sensitive to the relationship between prey availability and adult survival but was not sensitive to the relationship between prey and reproductive success. 

The team then incorporated a biomass limit into their model—a precautionary harvest rule where fishing stops when the biomass of forage fish reaches a low level. The results suggest seabird abundance is significantly higher with a biomass limit imposed compared to a constant fishing scenario, while also having minimal trade-offs to the fishery.

Fishing boat using a purse seine for sardines or anchovies in Moss Landing, California. iStock
Fishing boat using a purse seine for sardines or anchovies in Moss Landing, California. iStock

Equally important are the types of forage fish harvested as different species each have unique growth and natural mortality rates which can influence the projected seabird populations. 

Koehn notes that while this is not the first paper to show the benefits of a biomass-limit control rule, it does provide further support for more precautionary control rules in forage fish management by using a model that captures the complexities of seabird–forage fish interactions.

The added benefit of this type of model is that it can be used as a template and applied to different fisheries and bird populations around the world.  

“Tailoring forage fish management strategies to forage fish and seabird life history can lead to mutually acceptable outcomes for fisheries and seabirds,” said Koehn. “Moving forward, if there are no resources to develop new models for specific populations, a precautionary biomass-limit harvest control rule may meet both conservation and fishery objectives.”

This research was funded in part by the Tomlinson Endowment to the University of Washington School of Aquatic and Fishery Sciences and the Pew Fellowship in Marine Conservation. 

The paper’s lead author is UW postdoctoral researcher Laura Koehn. Tim Essington, UW SAFS, and Margaret Siple, University of California, Santa Barbara, are co-authors.

For more information, contact Koehn at laura.koehn216@gmail.com.


Last ice-covered parts of summertime Arctic Ocean vulnerable to climate change

This photo of sea ice on the Wandel Sea north of Greenland was taken Aug. 16, 2020, from the German icebreaker Polarstern, which passed through the area as part of the year-long MOSAiC Expedition.
This photo of sea ice on the Wandel Sea north of Greenland was taken Aug. 16, 2020, from the German icebreaker Polarstern, which passed through the area as part of the year-long MOSAiC Expedition. This area used to remain fully covered in ice throughout the year. Satellite images show that Aug. 14, 2020, was a record low sea ice concentration for this region, at 50%. Felix Linhardt/Kiel University

In a rapidly changing Arctic, one area might serve as a refuge – a place that could continue to harbor ice-dependent species when conditions in nearby areas become inhospitable. This region north of Greenland and the islands of the Canadian Arctic Archipelago has been termed the Last Ice Area. But research led by the University of Washington suggests that parts of this area are already showing a decline in summer sea ice.

Last August, sea ice north of Greenland showed its vulnerability to the long-term effects of climate change, according to a study published July 1 in the open-access journal Communications Earth & Environment.

“Current thinking is that this area may be the last refuge for ice-dependent species. So if, as our study shows, it may be more vulnerable to climate change than people have been assuming, that’s important,” said lead author Axel Schweiger, a polar scientist at the UW Applied Physics Laboratory.

How the last ice-covered regions will fare matters for polar bears that use the ice to hunt for seals that use the ice for building dens for their young, and for walruses that use the ice as a platform for foraging.

A polar bear is perched on a thick chunk of sea ice north of Greenland in March 2016.
A polar bear is perched on a thick chunk of sea ice north of Greenland in March 2016. These thicker, older pieces of sea ice don’t fully protect the larger region from losing its summer ice cover. Kristin Laidre/University of Washington

“This area has long been expected to be the primary refuge for ice-dependent species because it is one of the last places where we expect summer sea ice to survive in the Arctic,” said co-author Kristin Laidre, a principal scientist at the UW Applied Physics Laboratory.

The study focused on sea ice in August 2020 in the Wandel Sea, an area that used to be covered year-round in thick, multi-year ice.

“Sea ice circulates through the Arctic, it has a particular pattern, and it naturally ends up piling up against Greenland and the northern Canadian coast,” Schweiger said. “In climate models, when you spin them forward over the coming century, that area has the tendency to have ice survive in the summer the longest.”

Like other parts of the Arctic Ocean, the ice here has been gradually thinning, though last spring’s sea ice in the Wandel Sea was on average slightly thicker than previous years. But satellite images showed a record low of just 50% sea ice concentration on Aug. 14, 2020.

The new study uses satellite data and sea ice models to determine what caused last summer’s record low. It finds that about 80% was due to weather-related factors, like winds that break up and move the ice around. The other 20%, or one-fifth, was from the longer-term thinning of the sea ice due to global warming.

Map of the area of the “Last Ice Area” of the Arctic Ocean.
The study looked at the Wandel Sea north of Greenland, which is inside what’s known as the “Last Ice Area” of the Arctic Ocean. Schweiger et al./Communications Earth & Environment

The model simulated the period from June 1 to Aug. 16 and found that unusual winds moved sea ice out of the area, but that the multiyear thinning trend also contributed, by allowing more sunlight to warm the ocean. Then, when winds picked up, this warm water was able to melt the nearby ice floes.

The record-low ice concentration in 2020 was surprising because the average ice thickness at the beginning of summer was actually close to normal.

“During the winter and spring of 2020 you had patches of older, thicker ice that had drifted into there, but there was enough thinner, newer ice that melted to expose open ocean,” Schweiger said. “That began a cycle of absorbing heat energy to melt more ice, in spite of the fact that there was some thick ice. So in years where you replenish the ice cover in this region with older and thicker ice, that doesn’t seem to help as much as you might expect.”

The results raise concerns about the Last Ice Area but can’t immediately be applied to the entire region, Schweiger said. Also unknown is how more open water in this region would affect ice-dependent species over the short and long terms.

“We know very little about marine mammals in the Last Ice Area,” said Laidre, who is also an associate professor in the School of Aquatic and Fishery Sciences. “We have almost no historical or present-day data, and the reality is that there are a lot more questions than answers about the future of these populations.”

Other co-authors are Michael Steele and Jinlun Zhang at the UW; and Kent Moore at the University of Toronto. The research was funded by the U.S. National Science Foundation, NASA, the Natural Sciences and Engineering Research Council of Canada; the National Oceanic and Atmospheric Administration; the Office of Naval Research; and the World Wildlife Fund Canada.

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For more information, contact Schweiger at schweig@uw.edu, Steele at mas@apl.washington.edu or Laidre at klaidre@uw.edu.


PhD candidate Natalie Mastick Jensen featured in new whale documentary “Fathom”

PhD candidate Natalie Mastick Jensen is featured in a documentary, which premiered on June 25, 2021, on Apple TV+. As a research assistant, Natalie worked with Dr. Michelle Fournet for two weeks in southeast Alaska on a humpback whale playback study. The team worked to determine the social function of a certain non-song vocalization called the whup call.

Directed and photographed by Drew Xanthopoulos (“The Sensitives”), “Fathom” follows Dr. Ellen Garland and Dr. Michelle Fournet, two scientists focused on the study of humpback whale songs and social communication. As they embark on parallel research journeys on opposite sides of the world, they seek to better understand whale culture and communication. The documentary film uniquely reveals a deep commitment to and reverence for the scientific process and the universal human need to seek answers about the world around us. From hypothesis to groundbreaking experiences in the field, “Fathom” showcases the passion, curiosity, collaboration, perseverance, and work it takes for leading scientists to make scientific discoveries.

Watch the trailer below

 


Specimens by the Millions: Managing Large, Specialized Collections at the University of Washington Burke Museum Fish Collection

The University of Washington Fish Collection is a state-funded collection shared between the University of Washington School of Aquatic and Fishery Sciences and the Burke Museum of Natural History and Culture dating back to 1919. Early collecting followed the interests of curators and university class field trips, with a slow and steady growth rate up until the late 1970s. At that time, recognizing that state and federal agencies routinely collect specimens as part of their fishery and resource management efforts, we sought out partnerships with several local agencies, most notably the National Oceanographic and Atmospheric Administration Fisheries Department, to provide collections support for the natural history specimens collected through their survey work. The millions of specimens collected through these efforts, including adults, juveniles, eggs, larvae, skeletal materials, otoliths, and tissue samples, along with detailed locality data, are now freely available to researchers around the world. Vouchering specimens adds value to agency research by allowing for verification of results of work critical to the management of our resources, including supporting forensic vouchering for law enforcement. Our collection benefits not only from the huge number and diversity of specimens we can make available to researchers, but also through training opportunities for our students who help to curate the collections and often participate in survey fieldwork along with agency scientists. I outline these partnerships and the benefits to both parties as we curate these vast specialized collections.

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Where’s the Beach? Link to Lake secures $1 million in improvements to Rainier Beach’s Be’er Sheva Park

A group of people stand under a tent in a park.
Photo courtesy of Ashley Townes

“Where’s the Beach?” is a slogan used by community organizers to highlight the irony of Rainier Beach lacking safe and welcoming beach access and the inequity this represents. In other Seattle neighborhoods along Lake Washington, residents enjoy long stretches of accessible public shoreline, while people living in Rainier Beach have very little public access to the water for recreation.

Be’er Sheva Park, the South Seattle neighborhood’s premier public waterfront access location, will be getting a makeover, thanks to the efforts of the Rainier Beach Link to Lake group. The volunteer-led group has worked since 2016 to engage the Rainier Beach community and collect feedback for how to improve the park, create a comprehensive design plan implementing the ideas, organize volunteer-led fundraising events, and successfully apply for grants that can finance the work.

“I just wake up and smile sometimes because I know it’s really going to happen,” said Ashley Townes, who’s a part of Link to Lake’s steering committee and is pursuing a Ph.D. at the University of Washington’s School of Aquatic and Fishery Sciences. “We’re really, really going to improve the beach. And one day, we can really answer our own slogan, and we can say that the beach is over there. It’s for humans and it’s for wildlife that we want to return because they’re definitely being impacted by us.”