I am Distinguished Research Professor of Mathematical Biology UCSC and Director of the Center for Stock Assessment Research (CSTAR), which is a training program, jointly between UCSC and the Southwest Fisheries Science Center, for students and post-doctoral colleagues so that they can learn the quantitative methods needed for ecosystem based fishery management and thus improve the sustainability of fisheries in the U.S. and world-wide. I am also Adjunct Professor in the Theoretical Ecology Group at the University of Bergen, Norway (Visit the TEG), Visiting Professor at the Antarctic Climate and Ecosystems Cooperative Research Center at the University of Tasmania, Australia (Visit the ACE ERC), and a Visiting Scientist at the Puget Sound Institute, Center for Urban Waters, Tacoma, WA (Visit the PSI)

In my first job out of graduate school, I worked for the Operations Evaluation Group (OEG) of the Center for Naval Analyses doing operations research for the Navy. Christine Fox, the role model for Kelly McGillis's character in Top Gun , was one of my colleagues. In 2013, Christine became the first female Deputy Secretary of Defense in the history of the US. I moved to UC Davis in 1980 with the intention of doing OEG-style work, but with applications to fisheries and agriculture. Currently, I am broadly interested in using mathematical methods to solve problems that arise in biology (especially ecology, evolution, and behavior) and believe that we all should be working in what Donald Stokes called Pasteur's Quadrant of use-inspired basic research: where a search for fundamental understanding is motivated by an important applied problem. Stokes's book Pasteur's Quadrant. Basic Science and Technological Innovation (Brookings Institution Press 1997) is well worth reading

My interests and that of my research group are currently:

Quantitative Methods for Sustainable Fishery Management : We are developing the tools that will be needed to make Ecosystem Based Fishery Management (EBFM) a practicable approach for fishery management in the 21st century.

- The implications of climate change for southern ocean krill, their predators, and the management of krill fisheries. My current collaborators are George Watters (US Antarctic Research Division, Southwest Fisheries Science Center), Ryan Driscoll (PhD Student), Kate Richerson (PhD Student), and Jarrod Santora (Research Scientist)

- An integrated program of field work, laboratory work, and modeling to understand how water temperature and food availability affect the growth, survival, and migratory tendencies of steelhead trout, with application to water management policy in California. My current collaborators are David Boughton (Fisheries Ecology Division [FED], Southwest Fisheries Science Center)and Juan Lopez (PhD Student)

- A study of the evolutionary origins and fishery management implications of the reproductive biology of fishes. I gave the inaugural webinar for the NOAA Fisheries Quantitative Ecology and Socioeconomics Training (QUEST) Program. My topic was `A Perspective on Steepness and Its Implications for Fisheries Management'; get it here My current collaborators are Jon Brodziak (Pacific Islands Fisheries Science Center) and EJ Dick (FED).

The study of transgenerationmal thermal plasticity. In brief, the phenomenon is this: these fish have a growth rate versus temperature profile that has a peak (temperatures that are either too cold or too warm are poor for growth). If a mom experiences an off-peak temperature for a sufficiently long time, her offspring emerge with their temperature-growth rate peaking not at mom's but at the off-peak temperature that mom experienced. My current collaborators are Who-Seung Lee (Post-doc) and Steve Munch (FED)

One of my students, Teresa Ish, was the co-founder of FishWise (Visit FishWise) and the developer of the FishWise program, which supports commercial partners in aspects of sustainable fisheries. I am a Charter Member of the Board of Directors and was Organizational Incubator/mentor and continue on the BoD. FishWise is an example of social entrepreneurship, in which the strategies and tactics of business are used to solve imporant social problems and to thus create social value. In 2010, FishWise started working with Safeway (Press release ) There is already a spin-off from FishWise, FishChoice (Visit FishChoice) which does the same kind of work for commercial buyers of seafood, rather than consumers

One aspect of sustainability is traceability of the product, and this has lead FishWise staff to focus on various aspects of traceability, including two white papers. The first is about traceability generally and the second about human rights and fishery sustainability. At FishWise, we were ahead of the Guardian expose of summer 2014 on this topic.

The population biology of stem cells and their descendants For the last seven years, I have worked on stem cell systems from the perspective of population biology, thinking about the population dynamics of stem cells and how natural selection acts on those dynamics. My published work until now focussed on the bone marrow stem cell system, but in order to conduct a program of theory and experiments, I am now working on planaria, in collaboration with Aziz Aboobaker and Mike Bonsall at Oxford.

"Whaling in the Antarctic: Australia v. Japan. New Zealand Intervening": Between July 2010 and July 2013, I served as the Independent Scientific Expert of Australia for this case in the International Court of Justice (ICJ), concerning whether the Japanese special permit whaling program is for purposes of scientific research or not. The other two scientific experts were Dr. Nick Gales, Chief Scientist of the Australian Antarctic Division (Australia) and Professor Lars Walløe, University of Oslo and President of the Academia Europaea (Japan). At the ICJ website for this case you can find Australia's original filing (under Application),the written proceedings, which include the Memorial of Australia, the Counter-Memorial of Japan, the Intervention by New Zealand, and the Expert statements and associated correspondence (under Written Proceedings), transcripts of the hearings (under Oral Proceedings), and Orders and Press Releases by the Court. The hearings are available as a recorded webcast (VOD) on the United Nations Web TV TV website. My testimony at the Court can be found about an hour into this link.

Although I expect to write a number of papers about this case, I have not yet done so. To make things a bit easier for interested readers here are my Original Report in the Memorial of Australia, my my Supplementary Report in light of the Counter Memorial of Japan, my Response to the Expert Statement of Professor Walle (which can be found at the Court web-site), the Expert Statement of Nick Gales, and the Response of Nick Gales to the statement of Professor Walloe.

Sidney Holt, one of the founders of modern fisheries science and a member of the Committee of Three who advised the IWC in the 1960s, wrote a blog about the case, which he has allowed me to post, for purposes of information.

Our Approach to Mathematical Biology My research group is unified by the tools we use: models (differential equations, stochastic dynamic programming and Bayesian statistical methods), experiments (either here in Santa Cruz or in collaboration with colleagues elsewhere) and field observations. We apply these ideas to a variety of systems, currently including southern ocean krill, steelhead trout, Pacific rockfish, stem cell systems (particularly the blood system and planaria). Although I worked for many years on insect parasitoids and tephritid fruit flies, we are not doing much with them just now.

News of the Ohana

Left Align

Recent news about current and former undergraduate (US) and graduate (GS)students, my peronsal assistant (PA), post-docs (PD), technicians (T) and CSTAR:

EJ Dick (GS 2004-2009) received the Gold Medal from the Secretary of Commerce (the highest honor bestowed by the Secretary of Commerce recognizing distinguished performance characterized by extraordinary, notable, or prestigious contributions) for leading the team that has developed assessment methods for data-poor stocks that triples the number of high-quality stock assessments and increases allowable catch limits for fishermen.

Stephanie Carlson (PD 2007-08) was promoted to Associate Professor, Department of Environmental Science, Policy, and Management at UCB. October 2014

Mike Beakes (T 2006-10) completed his PhD in Biological Sciences at Simon Fraser University and started a NRC Post-doc at the Northwest Fisheries Science Center with Tim Beechie. September 2014

Melissa Monk (PD 2012-14) accepted a position as Fishery Research Applied Mathematician at the Fisheries Ecology Division, Southwest Fisheries Science Center. August 2014.

Carl Boettiger (PD 2012- ) has accepted a position as Assistant Professor at UCB in the Department of Environmental Policy, Science, and Management to start their EcoInformatics Program. Carl's rOpenSci project has received additional funding from the Sloan Foundation. August 2014.

Suzanne Alonzo (PD 1998-2004) has left Yale University to return to UCSC as Professor of Ecology and Evolutionary Biology. August 2014.

Fred Adler (PD 1991-93) was elected President of the Society for Mathematical Biology.

Justin Yeakel (GS 2009-2012) accepted a position as Assistant Professor in the School of Natural Sciences at UCM. Justin will move to UCM in Nov, 2015; he is going to spend the next year as Omidyar Fellow at the Santa Fe Institute Santa Fe Institute. July 2014.

Shea Gardner (GS 1992-97) received the 2014 Gold Award from Global Security for developing the first transportable automated system for microbial forensic analysis based on DNA sequencing. July 2014.

Santiago Salinas (PD 2012-14) accepted a position as Assistant Professor in the Department of Biology at University of the Pacific. July 2014.

Barney Luttbeg (GS 1991-97)has received tenure and promotion to Associate Professor at Oklahoma A&M (formerly Oklahoma State) University. June 2014.

Asaf Sadeh (GS 2007-11) accepted a Lady Davis Fellowship for a post-doctoral position at the Faculty of Agriculture, Hebrew Univesity, Rehovot. June 2014.

Erick Greene (PD 1988-90) received the Tom Boone Town and Gown Award from the University of Montana. This recognizes the faculty who most demonstrates outstanding community service and making research accessible to the general public. Erick also received the Excellence in Teaching Across the Curriculum Award. This award is for the teacher who demonstrates outstanding teaching and mentoring at all levels (lower-level introductory classes, upper-level classes, and graduate education). June 2014

Juan Lopez (GS 2011-) received a NSF GROW fellowship to visit Andre de Roos in Amsterdam for the summer. NSF describes the program like this: In an era of globalization of research excellence, an international research experience is rapidly becoming an integral part of an outstanding graduate education. Graduate Research Opportunities Worldwide (GROW) is a collaboration between NSF, international partners and the U.S. Agency for International Development (USAID) to provide NSF Graduate Research Fellows with expanded opportunities to enhance professional development through research collaborations at top-caliber science and engineering research sites overseas. May 2014

Will Satterthwaite (PD 2006-10) took over as Vice Chair of the Scientific and Statistical Committee of the Pacific Fisheries Management Council, April 2014

Leah Johnson (GS 2002-06) started a position as Assistant Professor in the Department of Integrative Biology at the University ofSouth Florida, August 2013

Holly Kindsvater (US and PA 2001-04)received a NSF Postdoctoral Fellowship in Mathematics and Biology. She will be co-supervised by John Reynolds (Simon Fraser University) and me, and based at SFU

Taal Levi (GS 2007-2012) accepted a position as Assistant Professor at Oregon State University (June 2013).

Richard Gomukiewicz (GS 1986-90) shared the 2012 Presidential Award from the American Society of Naturalists for his paper with Michaeal Barfiedl and Robert Holt for their paper on evolution in an age-structured population (American Naturalist 177:397-409)

Justin Yeakel (GS 2009-2012) has started a post-doc with Jonathan Moore at Simon Fraser University working on isotopes and food webs, July 2012

Taal Levi (GS 2007-2012) received a NSF Postdoctoral Fellowship and is working with Rick Ostfield on lyme disease, June 2012

Roxi Pourzand (US 2010-12; PA 2011-12) received the Weiss Family Scholarship in June 2012. The Weiss Family Scholarship is awarded to students who are affiliated with College Nine or College Ten and working directly with faculty within the research centers. Roxi did a brilliant undergraduate thesis working with faculty in the Water Resources Center. In July, she started as a data analyst with the SF-based company DataRaker,whose goal is to analyze large amounts of utility data (gas, water, and electric) from smart metering technologies and things such as helping the utility price their water, targeting customers in the utility for energy efficiency/conservation programs, and help the utility protect revenue by finding water/gas/electric theft.

Simone Vincenzi (Visiting PD 2009, 2010; PD 2011-13) has received an outgoing EU Marie Curie Fellowship. Simone will spend calendar years 2013 and 2014 in Santa Cruz and then 2015 in Milan. We will work together on life history of marbled trout in Slovenia, May 2012

Who-Seung Lee (GS 2008-2010, co-supervised with Neil Metcalfe and Pat Monaghan) has received the Government of Quebec Merit Postdoctoral Fellowship for International Scholars, to continue his work with Pedro Peres-Noto, April 2012

Taal Levi (current GS, co-supervised with Chris Wilmers, ENVS) received a NSF Postdoctoral Fellowship, April 2012

Will Satterthwaite (PD 2006-11) has taken a permanent job with the Fisheries Ecology Division, Southwest Fisheries Science Center, April 2012

Juan Lopez (US summer 2010 and current AMS PhD student) received a NSF Graduate Research Fellowship, April 2012

Dan Merl (GS 2003-06) has joined FaceBook as a leader of their statistical analysis division, April 2012

Ole Shelton (PD 2009-2012) has taken a permanent position in Phil Levin's group at the Northwest Fisheries Science Center, April 2012

Colin Meyer (US, summer 2009) has received a Churchill Scholarship to the University of Cambridge where he will undertake a one year Master's course in Applied Math and Theoretical Physics (the famous Part III of the Math Tripos), March 2012

Gia Kobara (PA 2009-2011) is now working in the HR department at Facebook, March 2012

Beth Howard (US 2000-2001) is now the reserve manager for Younger Lagoon (located at the Long Marine Lab property, and part of the UC reserve system)

Sigrunn Eliassen (GS 2003-06) is back for a year long visit (2011-12) from the University of Bergen, where she is a researcher

Holly Kindsvater (US and PA 2001-04) successfully defended her PhD in Ecology and Evolutionary Biology at Yale University, September 2011

Chris Simon (PA, 2005-06) has joined the company (1010data, Sept 2011

Asaf Sadeh (GS 2008-11) received a BARD post-doctoral fellowship to work with Jay Rosenheim at Davis, Aug 2011

Katriona Shea (PD, 2000-2011) was promoted to Full Professor at Penn State. Go Lions!, Aug 2011

Amos Bouskila (GS, 1988-92) was promoted to Associate Professor at Ben-Gurion University of the Negev and has received excellence in teaching awards in 2009, 2010, and 2011

George Heimpel (GS, 1990-95) is a Resident Fellow at the Institute of the Environment, University of Minnesota

Michael Maxwell(GS, 1989-95) received National University President's President's Professoriate Award

Suzanne Alonzo (PD, 1998-2004) received the Yale Postdoctoral Mentorship Prize for 2011 and a NSF Early CAREER Award in 2010.

Read about Suzanne's mentoring award

Valerie Brown (GS, current) received the prize for the best student poster ast the World Conference on Natural ResourceModeling, 2011

Shea Gardner (GS, 1992-95) received the 2010 Technology Transfer Award in Federal Lab Consortium’s Far West Region for developing the LawrenceLivermore Microbial Detection Array (LLMDA) and the 2010 Gold Award from LLNL Global Security Directorate for Microarray Development

Holly Kindsvater (US and PA 2001-04) received a dissertation year fellowship from the American Association of University Women, April 2011

Chris Simon (PA, 2005-06) successfully defended his Phd in Applied Mathematics and Statistics, April 2011

Mariah Boyle, Operations Manager at FishWise, has become a member of CSTAR, March 2011

Katie (nee Siegfried) Andrews (GS 2002-06) has moved to the Beaufort, NC lab of the Southeast Fisheries Science Center, Feb 2011

Juan Lopez (US, Summer 2010) received an Outstanding Achievement Award from the UC LEADS program for work he did on modeling steelhead growth

Steve Munch (PD 2002-05) has returned to Santa Cruz as a staff member at the Fisheries Ecology Division, Southwest Fisheries Science Center, NOAA Fisheries,Santa Cruz Lab, Sept 2011. Yeah!

Will Satterthwaite (PD 2006-2010) is now Assistant Research Applied Mathematician at UCSC, working full time on salmon at the Fisheries Ecology Division, Southwest Fisheries Science Center, NOAA Fisheries,Santa Cruz Lab, July 2011