Publications
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Manipulating wild and tamed phytobiomes: Challenges and opportunities Manipulating wild and tamed phytobiomes: Challenges and opportunities
This white paper presents a series of perspectives on current and future phytobiome management, discussed at the Wild and Tamed Phytobiomes Symposium in University Park, PA, USA, in June 2018. To enhance plant productivity and health, and to translate lab- and greenhouse-based phytobiome research to field applications, the academic community and end-users need to address a variety of...
Authors
Terrence H. Bell, Kevin L. Hockett, Ricardo Ivan Alcala-Briseno, Mary Barbercheck, Gwyn A. Beattie, Mary Ann Bruns, John E. Carlson, Taejung Chung, Alyssa Collins, Bryan Emmett, Paul Esker, Karen Garrett, Leland Glenna, Beth K. Gugino, Maria del Mar Jimenez-Gasco, Linda Kinkel, Jasna Kovac, Kurt P. Kowalski, Gretchen Kuldau, Johan H. J. Leveau, Matthew J. Michalska-Smith, Jessica Myrick, Kari Peter, Maria Fernanda Vivanco Salazar, Ashley Shade, Nejc Stopnisek, Xiaoquing Tan, Amy T. Welty, Kyle Wickings, Etienne Yergeau
Contemporary environmental assessment using a viability analysis in a large river system to inform restoration and adaptive management decisions Contemporary environmental assessment using a viability analysis in a large river system to inform restoration and adaptive management decisions
As large-scale restoration plans for degraded aquatic habitats evolve, it is essential that multiorganizational collaborations have a common vision to achieve consensus on restoration goals. Development of restoration targets and postrestoration monitoring strategies can be focused using a viability analysis framework that supports an adaptive management process. Viability analysis is a...
Authors
Robin L. DeBruyne, Edward F. Roseman, Jason E. Ross, Kurt R. Newman, Russell M. Strach
Stream characteristics associated with feeding type in silver(Ichthyomyzon unicuspis) and northern brook (I. fossor) lampreys and tests for phenotypic plasticity Stream characteristics associated with feeding type in silver(Ichthyomyzon unicuspis) and northern brook (I. fossor) lampreys and tests for phenotypic plasticity
In most lamprey genera, “paired” species exist in which the larvae are morphologically indistinguishable but adult feeding type differs. The lack of diagnostic genetic differences in many pairs has led to suggestions that they constitute a single gene pool with environmentally influenced feeding types. To investigate whether stream characteristics are correlated with feeding type in the...
Authors
Fraser Neave, Todd B. Steeves, Thomas C. Pratt, Robert L. McLaughlin, Jean V. Adams, Margaret F. Docker
Effectiveness of lake trout (Salvelinus namaycush) suppression in Lake Pend Oreille, Idaho: 2006–2016 Effectiveness of lake trout (Salvelinus namaycush) suppression in Lake Pend Oreille, Idaho: 2006–2016
The nonnative lake trout (Salvelinus namaycush Walbaum, 1792) population in Lake Pend Oreille, Idaho increased exponentially during 1999–2006. This led to an unsustainable level of predation mortality on kokanee (Oncorhynchus nerka Walbaum, 1792), increased the conservation threat to native bull trout (Salvelinus confluentus Suckley, 1859), and jeopardized the popular recreational...
Authors
Andrew M. Dux, Michael J. Hansen, Matthew P. Corsi, Nicholas C. Wahl, James P. Fredericks, Charles E. Corsi, Daniel J. Schill, Ned J. Horner
Diel activity of newly metamorphosed juvenile sea lamprey (Petromyzon marinus) Diel activity of newly metamorphosed juvenile sea lamprey (Petromyzon marinus)
Timing of activity, especially for juvenile anadromous fishes undertaking long migrations can be critical for survival. River-resident larval sea lamprey metamorphose into juveniles and migrate from their larval stream habitats in fall through spring, but diel timing of this migratory behavior is not well understood. Diel activity was determined for newly metamorphosed sea lamprey using...
Authors
Scott M. Miehls, Christopher M. Holbrook, J. Ellen Marsden
Water column nutrient processing rates in rivermouths of Green Bay (Lake Michigan) Water column nutrient processing rates in rivermouths of Green Bay (Lake Michigan)
Understanding the quantity and form of nutrient loads to large lakes is necessary to understand controls over primary production, phytoplankton community composition and the production of phytotoxins. Nutrient loading estimates to large lakes are primarily made at stream gages that are deliberately placed outside the direct influence of lake processes, but these estimates cannot take...
Authors
James H. Larson, Mary Anne Evans, Faith A. Fitzpatrick, Paul C. Frost, Sean Bailey, Robert J. Kennedy, William F. James, William B. Richardson, Paul C. Reneau
Population connectivity of pelagic megafauna in the Cuba-Mexico-United States triangle Population connectivity of pelagic megafauna in the Cuba-Mexico-United States triangle
The timing and extent of international crossings by billfishes, tunas, and sharks in the Cuba-Mexico-United States (U.S.) triangle was investigated using electronic tagging data from eight species that resulted in >22,000 tracking days. Transnational movements of these highly mobile marine predators were pronounced with varying levels of bi- or tri-national population connectivity...
Authors
Jay R. Rooker, Michael A. Dance, R. J. David Wells, Matthew J. Ajemian, Barbara A. Block, Michael R. Castleton, J. Marcus Drymon, Brett J. Falterman, James S. Franks, Neil Hammerschlag, Jill M. Hendon, Eric R. Hoffmayer, Richard T. Kraus, Jennifer A. McKinney, David H. Secor, Gregory W. Stunz, John F. Walter
Habitat overlap of juvenile and adult lake trout of Great Bear Lake: Evidence for lack of a predation gradient? Habitat overlap of juvenile and adult lake trout of Great Bear Lake: Evidence for lack of a predation gradient?
A range of organisms, from plankton to fish, commonly shift their habitat distributions horizontally or vertically due to predation risk. Juvenile lake trout, Salvelinus namaycush, are generally viewed as occupying deep areas of lakes to decrease predation pressure from adults. In contrast, we found that juvenile lake trout from Great Bear Lake, NT, Canada, occupied a variety of habitats...
Authors
Louise Chavarie, Kim L Howland, Les N. Harris, Michael J. Hansen, C P Gallagher, W J Harford, W M Tonn, Andrew M. Muir, Charles C. Krueger
Assessing the spawning ecology of fish in situ using a benthic pump sampler Assessing the spawning ecology of fish in situ using a benthic pump sampler
In situ observations of incubating fish eggs can identify spawning sites and spawning habitat preferences, informing the ecology of fishes with benthic eggs. Suction pumps have been used to sample benthic-incubating, non-adhesive fish eggs, yet their sampling efficiency is not well known. Imperfect or systematically variable egg detection could bias resulting ecological inference if left
Authors
Matthew R. Paufve, Suresh Sethi, Brian F. Lantry, Brian Weidel, Lars G. Rudstam
Status of Mysis diluviana in Lake Ontario in 2013: lower abundance but higher fecundity than in the 1990s Status of Mysis diluviana in Lake Ontario in 2013: lower abundance but higher fecundity than in the 1990s
Mysis diluviana is a major component of prey fish diets in the Great Lakes, so annual production of M. diluviana is important for understanding and modeling energy flow through Great Lakes food webs. However, only three lake-wide measurements of M. diluviana annual production in Lake Ontario are currently available (1971, 1990, 1995). During 2013, lake-wide coverage of Lake Ontario was...
Authors
Toby J. Holda, Lars G. Rudstam, Kelly L. Bowen, Brian Weidel, James M. Watkins, Patrick F Sullivan, Jeremy P. Holden, Michael J. Connerton
Long-term suppression of the Lake Trout (Salvelinus namaycush) population in Lake Pend Oreille, Idaho Long-term suppression of the Lake Trout (Salvelinus namaycush) population in Lake Pend Oreille, Idaho
A simulation model of lake trout Salvelinus namaycush (Walbaum 1792) population dynamics in Lake Pend Oreille, Idaho, was used to estimate (1) the optimal allocation of effort among gillnet mesh sizes that minimizes abundance in the shortest time; (2) the number of years needed to suppress the population to 90% of peak abundance; and (3) once suppressed, how much effort could be reduced...
Authors
Michael J. Hansen, Matthew P. Corsi, Andrew M. Dux
Mercury isotopes reveal an ontogenetic shift in habitat use by walleye in lower Green Bay of Lake Michigan Mercury isotopes reveal an ontogenetic shift in habitat use by walleye in lower Green Bay of Lake Michigan
In general, fish residing in rivers differ from fish residing in lakes in their mercury (Hg) isotope ratios. Specifically, fish residing in lakes typically show enriched values for the isotope ratios of δ202Hg (mass-dependent fractionation of isotope 202Hg) and Δ199Hg (mass-independent fractionation of isotope 199Hg) compared with fish residing in rivers, because photochemical effects...
Authors
Charles P. Madenjian, Sarah E. Janssen, Ryan F. Lepak, Jacob M. Ogorek, Tylor J. Rosera, John F. DeWild, David P. Krabbenhoft, Stewart F. Cogswell, Mark E. Holey