The Great Lakes - St.Lawrence Research Inventory

The Great Lakes - St. Lawrence Research Inventory is an interactive, Internet-based, searchable database created as a tool to collect and disseminate up-to-date information about research projects in the Great Lakes - St. Lawrence Region.
  • Assessing the potential of selective fish passage using trap-and sort fishways

    March 1, 2017 to February 28, 2021In ProgressProject

    Developing methods of blocking and removing invasive fishes, while allowing the passage of desirable fishes (selective fish passage) is becoming an issue of great importance to fisheries managers in the Great Lakes. We propose to assess the potential for selective fish passage with currently operated trap-and-sort fishways used to remove invasive Sea Lampreys (Petromyzon marinus) and pass desirable fishes. Trap and sort fishways consist of sequential downstream and upstream compartments.


    January 1, 2017 to December 31, 2019In ProgressProject

    Chemoreception is not restricted to olfaction; solitary chemosensory cells (SCCs) are present in the skin of fish and other aquatic vertebrates, including brook and silver lampreys. With GLFC funding, we have investigated SCCs in the sea lamprey. In adults, these are numerous on cutaneous papillae around the nostril, around the oral disc, around the gill pores, and on the dorsal fins. Depending on their location, SCCs are innervated by different nerves, but their central projection pattern is similar, as each links to motor control centers.

  • Evaluation of Light as a Non-Physical Cue to Guide Downstream-Migrating Lamprey Transformers Into Traps

    January 2, 2017 to March 30, 2018In ProgressProject

    The Great Lakes Fishery Commission desires to diversify and integrate sea lamprey control options. Efficient and low-maintenance trapping of downstream migrating transformed sea lampreys would provide an additional control tool. Transformers are sensitive to and respond behaviorally to low-intensity white light (10 lux; Binder et al. 2013), therefore visible white light has potential to repel or guide actively migrating transformers. Light has been shown to be effective in attracting upstream migrant adult sea lamprey into traps in the laboratory (Stamplecoskie et al.

  • Physiological and behavioral responses of sea lamprey to low frequency sound

    January 1, 2016 to December 31, 2018In ProgressProject

    Sea lamprey control in the Great Lakes needs devices that selectively pass valued fishes, while blocking or guiding sea lamprey, to address stakeholder desire for increased aquatic connectivity. We conceptualize that sound may be an important component of selective fish passage devices because most fishes detect and respond to sound, but vary in frequencies of greatest sensitivity. Sound propagates through water regardless of water velocity, clarity, and lighting and has been used to reduce impingement of fishes or guide fish a variety of man-made structures.

  • Joint Effects of Physical Processes and Multiple Invasive Species on Great Lakes Zooplankton Production, with Implications for Fish Recruitment

    January 1, 2016 to December 31, 2018In ProgressProject

    RATIONALE: Declines in food availability can limit fish recruitment. For instance, recent dramatic declines in prey fish in four Great Lakes, including key forage fish (e.g., alewives) and native deepwater species (e.g., bloater), have been attributed in part to changes in zooplankton community composition and biomass. The changes in zooplankton have likely been influenced by invasive species, especially the spiny water flea (Bythotrephes longimanus) and dreissenid mussels.


    January 1, 2017 to April 30, 2019In ProgressProject

    Restoring and maintaining viable, productive, and diverse natural lake trout (Salvelinus nameschus) stocks requires detailed information on the genetic basis of reproductive success and survival across Great Lakes environments. Recently, the emergence of natural lake trout recruitment in most management units in Lake Huron has been detected. Strain type and hybridization between strains appeared to be important for emergence of wild stocks.


    January 1, 2017 to December 31, 2019In ProgressProject

    Alewife abundance declined rapidly to very low levels during 2002-2004 in the main basin of Lake Huron. This led to the collapse of a sport fishery for Chinook salmon, but also to large increases in wild recruitment of many native species, including lake trout, walleye, and emerald shiners.

  • Chemistry to facilitate studies of pheromones; TFM and novel biosensors

    November 1, 2016 to October 31, 2018In ProgressProgram

    This project is to support the work at the interface of sea lamprey biology and chemistry with focuses on sea lamprey pheromone biosensor development, TFM metabolism elucidation and analytical method development and validation for quantitative analysis of small molecules when the needs arise.

  • Effects of Dietary Thiaminase on Reproduction in Three Strains of Atlantic salmon

    September 1, 2016 to August 31, 2017In ProgressProject

    The reintroduction of Atlantic salmon into Lake Ontario is a top priority for management agencies and conservation groups. However, these reintroduction efforts have not yet produced a self-sustaining population of Atlantic salmon. One major factor that has been hypothesized to obstruct reintroduction efforts is the high abundance of exotic prey fishes—rainbow smelt and alewife—in Lake Ontario.

  • Comparison of Continuous and Interrupted Lampricide Block Toxicity to Sea lamprey and Lake Sturgeon

    July 1, 2015 to May 31, 2016In ProgressProject

    Lake Sturgeon (Acipenser fulvescens, LST) is a state and tribal species of special concern and a nontarget species sensitive to lampricides in certain stream water chemistries. As such, there is significant interest in the Great Lakes fisheries community to develop alternative sea lamprey (Petromyzon marinus, SL) control approaches for applicable LST producing streams that would reduce the impact on LST.