The goal of the Science Transfer Program (STP) is to improve fishery management to successfully achieve fish community objectives by identifying science and science products that can inform management needs, and making science accessible to managers for decision-making. The program funds strategic science transfer initiatives to support the objectives and activities described in A Joint Strategic Plan for Management of Great Lakes Fisheries.
Activities supported under the STP include, but are not limited to, workshops, symposia, publications, and training.
The Science Transfer Program is advised by a Science Transfer Board (STB ) consisting of fishery managers, sea lamprey control agents, and scientists. The STB identifies and prioritizes fishery management issues requiring science transfer through a "horizon scan" process. Ideas are solicited from the Sea Lamprey Control Board, Council of Lake Committees, and the broader Great Lakes science and management communities, as well as stakeholders and industry partners.
If you have a project idea or management issue that could be informed by available science, please contact the science program.
Science Transfer Initiatives
From fish movement to knowledge movement: Understanding and improving science transfer related to telemetry
Project leader: Cooke, S.
Researchers use acoustic telemetry to collect information about fish movements (e.g., migration patterns, habitat use, survival). An acoustic telemetry system consists of two main components: transmitters and receivers. Transmitters are electronic tags, attached to or surgically implanted in a fish, that broadcast a series of “pings” (sound pulses) into the surrounding water. Receivers are small, data-logging computers anchored near the bottom of a lake or river that “listen” for tagged fish. When a signal is identified, the tag’s unique ID code is saved with the date and time. The Commission has invested millions of dollars since 2010 in the Great Lakes Acoustic Telemetry Observation System (GLATOS). This project seeks to understand and improve how acoustic telemetry data are used in Great Lakes fishery management decision-making. The project will identify barriers to and opportunities for telemetry knowledge use by surveying fisheries managers, clearly communicate technical aspects of telemetry including opportunities and limitations, share GLATOS success stories through management briefs, and increase relevancy of telemetry by identifying lake-specific information needs.
Uses and limitations of environmental DNA (eDNA) in fisheries management
Project leader: Welsh, A.
Environmental DNA (eDNA) is a promising technique for greatly increasing the chance of detecting relatively rare or elusive organisms, such as invasive or endangered species. The method involves taking samples from the environment (e.g., water samples) and analyzing the DNA in those samples to identify which species are present. While this technique shows potential as a cost-effective alternative to traditional surveillance methods, it also has limitations. For example, the ability of eDNA technology to quantify abundance of organisms remains a contentious issue, as does the potential ramifications of false positive and negative results. To meet the needs of Great Lakes fishery managers, we are conducting a project that will summarize potential uses and limitations of eDNA in fishery management. The products developed during this project will also transparently acknowledge areas of scientific controversy, and compile resources to help managers make informed decisions about eDNA monitoring in their jurisdictions.
Changes in nutrient status and energy flow through lower trophic levels: Implications for Great Lakes fishery managers
Project leader: Stewart, T.
- A conceptual model was developed describing the influences of changes in water quality, food web structure, and fisheries management activities on Great Lake fish and fisheries.
- Synthesis of the literature and direct observations from Great Lakes studies confirmed a positive relationship between the total amount of total fish biomass and nutrient concentration.
- Food web structure, fish management activities and increased water clarity can aggravate or mitigate the influence of declining nutrients.
- Concepts developed during the synthesis process and from the workshop will facilitate further discussions among Great Lakes stakeholders to refine the concepts, find mutually agreeable ecosystem goals, and the means to achieve them.
- Many of the mass-balanced descriptions of Great Lakes food webs remain unpublished, others are outdated, and this needs to be corrected. Food web studies requires the integration of large amounts of multi-trophic level, multi-scale data which introduces considerable uncertainty. Methods exist for adequately accounting and understanding the consequence this uncertainty, such as linear inverse modelling (van Oevelen et al. 2010), and can be adapted to existing Great Lakes food web data (Hossain et al. 2017). Applying these methods to existing mass-balance descriptions of Great Lakes food webs would allow a more fulsome exploration of uncertainty and its consequences. Integrating isotope and biomass size spectra approaches may be another independent method to assess Great Lakes food web attributes (Jennings et al., 2002, Trebilco et al., 2013).
- Potential fish production is lower in nutrient poor systems, and as many Great Lakes ecosystems shift from mesotrophic to oligotrophic, not all fish species can be supported at historical levels, while others may thrive. However, highly functioning ecosystems and productive and diverse quality fisheries are still possible. It will be a challenge for managers to adjust their expectations and those of their clients, and to innovate and adapt their fisheries management practices.
Alternative barrier technologies: History as a control tool
Project leader: Zielinski, D.
- The Great Lakes Fishery Commission’s sea lamprey control program has generated a technologically diverse set of barrier designs that focus on influencing or exploiting a single behavioral (e.g., non-physical barriers), phenological (e.g., seasonal barriers), physiological (e.g., fixed-crest and velocity barriers), or morphological (e.g., screens and weirs) attributes to block or trap sea lamprey.
- The fixed-crest barrier has the longest history of effectively blocking sea lamprey passage; owed, in part, to its relatively straightforward design.
- The next most common designs, adjustable-crest and seasonally operated barriers utilize a similar blocking mechanism as fixed-crest barriers but have higher costs associated with staffing and risks associated with automated operation.
- Alternatives barrier technologies such as resistance weirs, velocity barriers, and vertical mount electrodes with pulsed direct current have been shown, at least experimentally, to have potential to block sea lamprey passage; however, none have been deployed yet at a management scale.
- The lesson learned from the history of sea lamprey barriers is that great caution should be exercised prior to implementing new and experimental barrier technologies at the management scale.
Accounting for potential effects on fish production from barrier removals to inform management decisions: an application of structured decision making.
Project leader: Jones, M.
- Structured Decision Making (SDM) is a useful tool to help managers, stakeholders, and researchers discuss and make effective decisions on complex fishery issues, including barrier removals in the Great Lakes.
- Modeling and field studies lend insight into the expected effects of dam removals on fish populations and communities, but many critical uncertainties remain that are important to consider in the SDM process.