The 2010 Joint Summer Meeting of ASLO and NABS will include many interesting workshops that combine the interests of both societies. Workshops are open to all meeting participants. Updates to the descriptions, including additional workshops, costs, times, and room locations, will be posted as they are available.

CANCELLED. Bugs and Bodies: The Role of Aquatic and Terrestrial Invertebrates in Crime Scene Investigations

Forensic entomology is the name given to any aspect of the study of insects and other arthropods that interact with legal matters, especially in a court of law. Medico-legal entomology is a major area of emphasis within this increasingly recognized field of forensic science and encompasses the use of insects to estimate a time interval of when the body was colonized by insects to the moment of discovery, as well as geographic inferences related to location and time interval of when human death occurred. This workshop will discuss what, why, and how aquatic and terrestrial invertebrates, as well as algae, can be used in crime scene investigations. We will document and illustrate several case histories we have worked on where insects and/or other invertebrates were important in establishing a portion of the postmortem interval (PMI) or a minimum time since death. The workshop price includes a video showing methods used to collect and preserve insects from crime scenes, as well as viewing some or our cases highlighted on the Discovery Channel’s New Detectives. We will discuss keys used for insect identification, and what is involved in determining the PMI or postmortem interval. We will provide simulated case studies to participants and have small groups work together to estimate a minimum PMI. This topic is not for the squeamish, so be prepared!

Introduction to the Freshwater Diatom Genera: Learning to “see” diatoms

Sunday, 6 June 2010, 09:00 to 17:00
Location: La Fonda Hotel, Santa Fe Room

Cost: $100.00 USD Member or Non-Member, $75.00 USD Student Member or Student Non-Member

This 8-hour workshop will be directed towards people interested in using diatoms in modern and paleolimnological studies, as well as those working on analysis of diatom species data. The workshop will be structured with morning lectures on the basics of diatom cell structure, life cycles, historical and modern classification systems, species distribution and habitat types. Participants will become familiar with the major groups of diatoms in freshwater lakes and streams. The workshop will take a general approach to introducing the diatoms. It will also include an invaluable course book directing participants to resources for further study. The afternoon session will be dedicated to a microscope session, in which participants will first learn to adjust the light microscope for diatom observations. We will begin to learn to “see” diatoms, that is, learn how to use the microscope to see the structures that are taxonomically important for species identification. Prepared slides from a variety of habitat types will be available for participants to distinguish morphological features of a number of freshwater genera.

Workshop Presenters

Becky Bixby, University of New Mexico, Albuquerque, NM 87131

Becky Bixby is an assistant research professor at the University of New Mexico. As a freshwater phycologist, broad questions that interest Bixby include: (1) what species inhabit the Earth, (2) why are species found where they are, and (3) how do species respond to environmental and biological stressors? These questions have driven her research program, utilizing diatoms as model organisms to ask broader questions about microbial biogeography and species responses to stressors. She employs cross-disciplinary methods from systematics, morphometrics, ecology, taxonomy, as well as univariate and multivariate statistics to address these questions. Her local projects include the human and natural impacts on diatom biodiversity and abundance in aridland rivers.

Sarah Spaulding, U.S. Geological Survey and Institute of Arctic and Alpine Research (INSTAAR), University of Colorado, Boulder, CO 80309-0450

Sarah Spaulding is an ecologist for the U.S. Geological Survey and a research scientist at INSTAAR, University of Colorado. Her principal interest is in the relationship of environmental, geologic, and evolutionary change as seen through the lens of paleoecology, systematics, and biogeography of freshwater diatoms. She has worked on diatoms from many regions across the globe and has a particular interest in developing web-based diatom floras (see Sarah has been teaching the intensive diatom course at Iowa Lakeside Lab for 10 years.

International Tools and Methods: Systematic evaluation of ecological literature to support causal inference

Sunday, 6 June 2010, 0 9:00 to 15:00
Location: Santa Fe Convention Center - Coronado/DeVargas

Cost: $30; This workshop is limited to 25 participants.

How can you substantiate a link, or lack there of, between cause and effect? How did the medical community justify linking smoking to lung cancer?

We commonly face a situation where we cannot use field data to prove a causal link between a human activity and an ecological impact (weak inference), or the information from the various sources provides conflicting results. A transparent, consistent, and defensibly logical framework is critical for evaluating available information and providing confidence for strong conclusions. Similar challenges were faced (and addressed) by epidemiology more than forty years ago. We apply those lessons learned and the philosophy of causation to ecology, beginning with aquatic systems.

Our standard and systematic approaches to reviewing and synthesizing evidence from the scientific literature:

Guided by a framework, causal assessors identify ecosystem attributes in relation to agents of cause, or environmental stressors, thereby guiding the search for evidence to answer specific questions. Evidence is extracted from multiple studies to determine the case for inferring that a given human activity causes a given environmental change.

In this workshop you will learn to extract various types of correlative evidence from scientific literature to collectively build a case for inferring causality. Evidence from crime scene investigations must survive the courtroom… Can your ecological inferences and associations survive such scrutiny, and guide better decision making for our global environment?

Workshop presenters

Richard Norris, eWater Cooperative Research Centre & Research Officer, Institute for Applied Ecology, University of Canberra,

Richard Norris is professor in freshwater ecology at the Institute for Applied Ecology, University of Canberra with over 25 years experience in ecology. He played a central role in the development and running of Australia’s National River Health Program and has led the teams that completed the Assessment of River Condition component of the National Land and Water Resources Audit and the Snapshot of the Murray-Darling Basin River Condition, and more recently Australia’s Framework for the Assessment of River and Wetland Health.

Sue Nichols, eWater Cooperative Research Centre & Research Officer, Institute for Applied Ecology. University of Canberra, .

Sue Nichols is a research fellow at the Institute for Applied Ecology, University of Canberra with particular interest in biological assessment of river condition.  She has worked extensively on the development of the Australian River Assessment System (AUSRIVAS), which comprises of standardized sampling methods, predictive models, and software to assess the biological health of Australian rivers. Her current research focuses on river management to maximize ecological outcomes in a changing environment; and the use of Causal Criteria techniques to promote the application of ecological knowledge in managing water for the environment.

Angus Webb, eWater Cooperative Research Centre & Department of Resource Management and Geography, The University of Melbourne,

Angus Webb is a quantitative ecologist primarily interested in researching the (usually negative) effects of humans on aquatic ecosystems. Working primarily in the field of ecological responses to flow variation in rivers, much of his current research revolves around the issue of making better use of previously gathered data from monitoring programs, previous research, and the published literature. This is manifested as i) using Bayesian modelling techniques to use previous data and expert opinion to provide prior parameteristations of statistical models and to make more efficient use of the scant field data we possess; and ii) using Causal Criteria analysis to systematically assess the evidence for and against questions of both general and applied ecological significance, and to build evidence based conceptual models.

Kate Schofield, National Center for Environmental Assessment, U.S. Environmental Protection Agency,

Kate Schofield is a stream ecologist with the U.S. EPA’s National Center for Environmental Assessment (NCEA).  Her work at NCEA has focused on the development of tools for the synthesis and management of information relevant to causal assessments, including the use of conceptual diagrams as structural and organizational frameworks for these assessments.

C. Richard Ziegler, National Center for Environmental Assessment (NCEA) , US Environmental Protection Agency,

Rick Ziegler is the NCEA team lead for U.S. EPA’s Report on the Environment (ROE).  He works on scientific and technological aspects of developing and communicating indicators of environmental condition to decision makers and the public.   His work also includes establishing an ecological cause and effect database, to be international, collaborative/peer-produced, on-line, and scientifically rigorous.  By combining cause and effect information with environmental indicators, Rick hopes that decision makers will have the opportunity to make better use of science.

Stream Nitrogen Biogeochemistry: Unsolved Questions and Approaches to Solve Them

Sunday, 6 June 2010, 10:00 to 12:00
Location: Santa Fe Convention Center - Kearney

One of the overarching conclusions from the recent LINX II stream 15N tracer experiments was that direct denitrification tends to explain only a minority of nitrate (NO3-) loss from the water column (median, 16%: Mulholland et al. 2008, Nature 452: 202). The balance of “retained” NO3- (measured as 15N-NO3- lost from stream water) appears to have been assimilated rather than denitrified, and may eventually be released back to the stream. This means that the fate of most NO3- “retained” in streams is uncertain, as assimilated NO3- may or may not contribute to further nutrient loading.

 In order to understand the long-term fate of “retained” NO3- in streams and rivers, the uptake pathways and subsequent cycling of 15NO3- removed by the stream bottom must be better understood. Potential fates include: 1) 15N assimilated into organic matter may be denitrified at the site of uptake through coupled remineralization-nitrification-denitrification; 2) 15N could be mineralized and released back to the water column as ammonium or nitrate; and 3) 15N-labeled organic matter may be transported, as particulate matter or DON, some distance downstream before becoming stored in a depositional environment, for example in lakes or reservoirs. Besides assimilation into organic N, dissimilatory nitrate reduction pathways (such as DNRA or Anammox) or nitrate storage by chemolithoautotrophs could also play a significant role in proximate N uptake.

The purpose of this workshop is to consider hypotheses about the fate of assimilated N in streams and to discuss new approaches for examining N fates across gradients in stream type and stream size (from headwater streams to rivers).  After a brief review of the literature and presentation of results from recent experiments to look at this question, presenters will open the floor to ideas and discussion.

Workshop organizers

Jonathan O’Brien, University of Canterbury,

Stephen Hamilton, Kellogg Biological Station and Department of Zoology, Michigan State University,   

Inverse Modeling Methods for Estimating Aquatic Ecosystem Metabolism

Sunday 6 June 2010, 13:00 to 17:00
Location: Santa Fe Convention Center - Peralta/Lamy

There is a current increase in interest in calculating aquatic whole-ecosystem metabolism using inverse modeling approaches.  In some cases it is possible to solve for more than just metabolism; reaeration can be estimated which allows broad application of the method but at a possible cost of higher uncertainty in metabolism estimates.  This workshop will discuss methods, models, and assumptions behind inverse approaches to estimating aquatic ecosystem metabolism.  Questions will include how to  both calculate and minimize uncertainty on parameter estimates (i.e. photosynthesis, respiration, reaeration) and how many parameters can be estimated with low uncertainty given variation in diel oxygen or oxygen isotope data data. The goal would be to develop guidelines for modeling methods including parameter estimation and uncertainty. We envision a session with a few short presentations addressing modeling of metabolism followed by small or large group discussions on specific questions.

Workshop OrganizerS

Robert O. Hall, Jr. and Erin  R. Hotchkiss, Department of Zoology and Physiology and Program in Ecology, University of Wyoming

Website for more information

Early Career Workshop - Meet the Journal Editors

Date/Time: Wednesday, 9 June 2010, 12:00 to 13:30
Location: SFCC – DeVargas/Coronado

Come meet the editors of our most important learned journals. During this Q&A session organized for early career scientists by the ASLO Early Career Committee, you will learn more about the reviewing and editorial process at some of the major aquatic and ecological journals. We have invited a panel that includes editors from leading journals including L&O, JNABS, CJFAS, Mar. Freshwat. Res., J. Plankton Res., J. Geophys. Res., Ecol. Applications and Oikos. Early Career scientists are invited to attend and interact with the panel, to find out more about the process of getting published as well as reviewing and editing for journals. A limited number of boxed lunches will be served.

Cancelled. NABS/ASLO GRC Workshop: 
Demands for Sparse Water in Arid Lands

This workshop is being offered for graduate and undergraduate students who are NABS and/or ASLO members.  The workshop will include a morning field trip to the Santa Fe River where participants will hike throughout the watershed with a local stream ecologist who will talk to about adaptations of aquatic organisms to highly variable water in arid lands.  Participants will then return to the conference center for lunch and enjoy speakers from the New Mexico State of Engineers, the Interstate Stream Commission, as well as a resident aquatic entomologist from University of New Mexico. The talks and discussions will educate those who attend about water policy, environmental advocacy, and how water supplies are shared with both people and aquatic organisms in the desert southwest.  This is limited to 25 students and promises to be a fun and educational workshop!

Digital Photography for Aquatic Enthusiasts
(offered by Freshwaters Illustrated)

Date/Time: Sunday, 6 June 2010, 9:00 to 16:00
Location: Santa Fe Convention Center, Milagro Room

Cost: $85 professionals, $50 students (see registration link below)

This workshop is designed for beginning to intermediate photographers who want an aquatic-oriented introduction to photo theory and principles, shooting/editing techniques, and digital workflows. The all-day workshop will include both classroom and field sessions. Cost is $85 ($50 for students). Details and registration at:

E-mail to reserve your space!

Author Information Workshop -  Limnology and Oceanography: Fluids and Environments

Date/Time: Friday, 11 June 2010, 12:00 – 13:30
Location: Santa Fe Convention Center - Sweeney B

An author information workshop will be conducted on Friday, 11 June, during lunch at the Santa Fe Convention Center – Sweeney Ballroom B. Come meet the associate editors and learn about the scope and submission guidelines for Limnology and Oceanography: Fluids and Environments. There will be a limited number of complimentary box lunches available, so plan to come early and join us. 

Emerging Issues Workshop: Exploring the Formation of a Working Group to Examine the Subterranean Estuary

Date/Time: Sunday, 6 June 2010, 08:00 - 17:00
Location: Hilton Hotel Santa Fe, Mesa Ballroom

In association with Sessions S38 and I08: Recent advances have been made in our ability to detect and quantify the flux of submarine groundwater discharge (SGD) to receiving waters (oceans, estuaries, rivers, and lakes).  As a result, investigators are beginning to understand that the associated flux of dissolved constituents (nutrients, trace metals, and contaminants) mobilized and transported by this subsurface flow may even rival those of riverine inputs, raising substantial questions about our understanding of oceanic chemical budgets and residence times.  Workshop participants will discuss and explore the possibility of forming a new working group to characterize the subterranean estuary and associated biogeochemical reactions and processes.  The ultimate goal of the working group would be to apply multi-disciplinary approaches to evaluate the role of the subterranean estuary in chemical loading to the world's oceans.  The workshop will be held.  Persons interested in attending the workshop should RSVP to Rick Peterson (

Emerging Issues Workshop: Allochthonous and autochthonous contributions to consumers

Date/Time: Sunday, 6 June 2010, 10:00 - 17:00
Location: SFCC, O'Keefe Room

Date/Time: Friday, 11 June 2010, Evening
Location: La Fonda Hotel., Stiha Room

The workshop goals are to synthesize what is known and to point out what remains to be learned about the importance of allochthonous subsidies to consumer production in aquatic ecosystems. The workshop will examine the hypothesis that autochthonous carbon disproportionately supports consumer production in aquatic ecosystems even when terrestrial inputs vastly dominate the flux of carbon to the system. The focus will be on primary consumers feeding near the base of riverine, lacustrine, and estuarine food webs.

In association with special session title: A synthesis of the importance of allochthonous and autochthonous support of consumers in aquatic ecosystems

Organizer Contact Info:

Sudeep Chandra
University of Nevada- Reno

Michael T. Brett
University of Washington

Martin J. Kainz
Inter-university Research Center Wasser Cluster Lunz

Mary E. Power
University of California Berkeley

Description of an emerging issue. The importance of allochthonous carbon to the productivity of aquatic ecosystems has long been the subject of great interest and lively conjecture. For example, the classic River Continuum Concept hypothesizes stream systems are primarily subsidized by terrestrial inputs in headwater systems and by autochthonous algal production in lowland systems. Recent research in small lakes has suggested terrestrial carbon inputs may support ≈ 50% of consumer production in aquatic food webs. But the biochemical composition of terrestrial and aquatic plant carbon differs dramatically that suggests terrestrial carbon is much more recalcitrant and less useful as a food source. This workshop will examine the hypothesis that autochthonous carbon disproportionately supports consumer production in aquatic ecosystems even when terrestrial inputs vastly dominate the flux of carbon to the system. We will focus on primary consumers feeding near the base of riverine, lactustrine, and estuarine food webs. We will also explore the energetic penalty to consumers due to the routing of terrestrial DOC via the classic microbial loop (i.e. bacteria-protozoans-macrozooplankton) in contrast to direct utilization of t-POC by consumers. The potential for terrestrial DOC to actually inhibit upper trophic level production via light limitation of pelagic and benthic primary producers will also be examined.

Anticipated outcomes. A meta-analysis of allochtonous and autochtonous C sources and relative contributions to upper trophic levels will be a linchpin of this effort. We will also compare the advantages and disadvantages of using stable isotope and fatty acid based approaches for tracking the incorporation of terrestrial organic matter into consumers. The product will be a perspective paper authored by the participants to be submitted to L&O.

Confirmed participants: