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1

DOBSON, TRACY, SHAWN J. RILEY, and MARC GADEN. "Human Dimensions of Great Lakes Fishery Management: New Research Thrust of the Great Lakes Fishery Commission." Society & Natural Resources 18, no. 5 (May 2005): 487–91. http://dx.doi.org/10.1080/08941920590924990.

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2

Dochoda, Margaret Ross. "Meeting the Challenge of Exotics in the Great Lakes: the Role of an International Commission." Canadian Journal of Fisheries and Aquatic Sciences 48, S1 (December 19, 1991): 171–76. http://dx.doi.org/10.1139/f91-317.

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The Great Lakes Fishery Commission has traditionally supported the conservation of genetic diversity native to the Great Lakes, and counseled caution in adding new species to the Great Lakes aquatic community. Since extinction of sub-specific taxa and establishment of new species in the Great Lakes have proven irreversible, caution and conservatism are warranted. The Commission's mandate has served the Great Lakes well in preventing, controlling, and managing exotics. For example, the Commission (1) provides a forum for interjurisdictional consultation prior to planned introduction of new fish species; (2) represents fishery agency concerns for inadvertent introductions to outside interests, as in the case of ship ballast introductions; (3) champions the conservation of genetic diversity native to the Lakes; and (4) controls the exotic sea lamprey at levels which permit fishery agencies to attain their fish community objectives.
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3

West, John J. Van, and A. B. McCullough. "The Commercial Fishery of the Canadian Great Lakes." Labour / Le Travail 26 (1990): 193. http://dx.doi.org/10.2307/25143437.

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4

Christie, W. J., Chris I. Goddard, Stephen J. Nepszy, John J. Collins, and Wayne MacCallum. "Problems Associated with Fisheries Assessment Methods in the Great Lakes." Canadian Journal of Fisheries and Aquatic Sciences 44, S2 (December 19, 1987): s431—s438. http://dx.doi.org/10.1139/f87-345.

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This paper presents a review of Great Lakes fishery assessment problems and addresses the variety of fisheries, the special circumstances created by rehabilitation, the emergence of joint strategic planning among fishery agencies, and convergence of water quality and fishery management. The inferences that emerge are that (1) continuing observation series are essential, (2) the variety of needs calls for a variety of assessment approaches, and (3) assessment objectives need to be clearly defined in order to protect the ongoing monitoring series. It is suggested that more attention should be given to fish community monitoring, to sport fishery statistics, and to gear calibration. On the other hand, improved coordination of human and material resources and focus on integration of water quality and fisheries assessment can achieve much, without great funding increases.
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5

Crossman, Edwin J., and Becky C. Cudmore. "Biodiversity of the fishes of the Laurentian Great Lakes: A Great Lakes Fishery Commission project." Italian Journal of Zoology 65, sup1 (January 1998): 357–61. http://dx.doi.org/10.1080/11250009809386846.

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6

Hauptman, Laurence M., and Robert Doherty. "Disputed Waters: Native Americans and the Great Lakes Fishery." Journal of American History 78, no. 3 (December 1991): 1073. http://dx.doi.org/10.2307/2078854.

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7

Reiger, John F., and Robert Doherty. "Disputed Waters: Native Americans and the Great Lakes Fishery." American Historical Review 97, no. 1 (February 1992): 288. http://dx.doi.org/10.2307/2164719.

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8

Egerton, Frank N., and Robert Doherty. "Disputed Waters: Native Americans and the Great Lakes Fishery." Michigan Historical Review 17, no. 2 (1991): 79. http://dx.doi.org/10.2307/20173286.

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9

Bishop, Richard C., Kevin J. Boyle, and Michael P. Welsh. "Toward Total Economic Valuation of Great Lakes Fishery Resources." Transactions of the American Fisheries Society 116, no. 3 (May 1987): 339–45. http://dx.doi.org/10.1577/1548-8659(1987)116<339:ttevog>2.0.co;2.

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10

Boxberger, Daniel L., and Robert Doherty. "Disputed Waters: Native Americans and the Great Lakes Fishery." American Indian Quarterly 16, no. 3 (1992): 433. http://dx.doi.org/10.2307/1185816.

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11

Cleland, Charles E., and Robert Doherty. "Disputed Waters: Native Americans and the Great Lakes Fishery." Ethnohistory 39, no. 3 (1992): 362. http://dx.doi.org/10.2307/482307.

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12

Rudstam, Lars G., Sandra L. Parker-Stetter, Patrick J. Sullivan, and David M. Warner. "Towards a standard operating procedure for fishery acoustic surveys in the Laurentian Great Lakes, North America." ICES Journal of Marine Science 66, no. 6 (February 10, 2009): 1391–97. http://dx.doi.org/10.1093/icesjms/fsp014.

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Abstract Rudstam, L. G., Parker-Stetter, S. L., Sullivan, P. J., and Warner, D. M. 2009. Towards a standard operating procedure for fishery acoustic surveys in the Laurentian Great Lakes, North America. – ICES Journal of Marine Science, 66: 1391–1397. Acoustic surveys are conducted annually in all five of the Laurentian Great Lakes and Lake Champlain to assess forage-fish abundance. The main target species are rainbow smelt (Osmerus mordax), alewife (Alosa pseudoharengus), and several coregonine species (Coregonus spp.). The Great Lakes Fishery Commission sponsored an Acoustic Study Group from 2002 to 2006 to discuss common problems and suggest standardized methods across these lakes. The study group produced a set of recommendations, available as a Great Lakes Fishery Commission Special Publication and on the web, that use in situ target strength (TS) to scale volume backscattering. Here, we review these recommendations with special attention to four often-overlooked topics of interest to all acoustic users, namely issues associated with first, the choice of thresholds for both TS and volume-backscattering strength, second, different settings for single-echo detection algorithms for measures of in situ TS, third, those taking account of measuring in situ TS in dense fish concentrations, and finally, detection limits.
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13

Mulvaney, Kate K., Carolyn J. Foley, Tomas O. Höök, Elizabeth C. McNie, and Linda S. Prokopy. "Identifying useful climate change information needs of Great Lakes fishery managers." Journal of Great Lakes Research 40, no. 3 (September 2014): 590–98. http://dx.doi.org/10.1016/j.jglr.2014.06.002.

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14

Christie, W. J., G. R. Spangler, K. H. Loftus, W. L. Hartman, P. J. Colby, M. A. Ross, and D. R. Tashelm. "A Perspective on Great Lakes Fish Community Rehabilitation." Canadian Journal of Fisheries and Aquatic Sciences 44, S2 (December 19, 1987): s486—s499. http://dx.doi.org/10.1139/f87-349.

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Review of the ASPY syntheses suggested that destabilization and subsequent fish community recovery in the Great Lakes are compatible with a model in which postglacial succession, and the structure and persistence of the fish communities, were governed by piscivores. Recent advances in the areas of particle size distribution, ontogenetic niche theory, and ecosystem stability contributed to a broader understanding of fishery management alternatives. Species succession in Great Lakes aquatic communities is characterized as a cyclic repetition of maturation followed by seasonal, annual, or periodic setbacks. These are termed "enjuvenation events" and are attributed to any cultural or climatic factors which induce flux in energy–matter delivery to the system. The extent of enjuvenation is dependent upon the magnitude of the perturbation and maturity of the community and is predictable to some degree by the age and biomass distributions of the species present. The time course of rehabilitation to any arbitrary prior condition of the community is closely related to the enjuvenation–maturation cycle and to the life span and reproductive characteristics of the species present. The principal homeostatic mechanism is perceived to lie with variations in the durations of life history stanzas as affected by fish growth rates. The "biomass storage" function of larger organisms in the system is thought to be a major determinant of the "biotic inertia" or sensitivity of the community to perturbations. We are convinced that trophic linkages from the piscivores downwards must be maintained as biological feedback pathways to ensure that moderately excessive fishery yields can be self-limiting. Without these linkages (vulnerable to intensive exploitation or other catastrophic reductions in predators), biomass capture of nutrient inputs by algae will vector to waste as planktivore density limits secondary production. The extent to which the fish community can be maintained or driven to a particular species composition is dependent upon the degree of external control of all sorts that can be applied to the system. The rehabilitation continuum ranges from a self-sustaining assemblage of native species requiring little external control to a completely artificially supported community of non-native species requiring extensive controls for both water quality and fish community maintenance.
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15

Dochoda, Margaret Ross, and Carlos M. Fetterolf. "Public Purpose of Great Lakes Fishery Management: Lessons from the Management Experience." Transactions of the American Fisheries Society 116, no. 3 (May 1987): 302–8. http://dx.doi.org/10.1577/1548-8659(1987)116<302:ppoglf>2.0.co;2.

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16

Heck, Nadine, Richard C. Stedman, and Marc Gaden. "Human dimensions information needs of fishery managers in the Laurentian Great Lakes." Journal of Great Lakes Research 42, no. 2 (April 2016): 319–27. http://dx.doi.org/10.1016/j.jglr.2016.01.003.

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17

Bishop, Richard C., Scott R. Milliman, Kevin J. Boyle, and Barry L. Johnson. "Benefit-cost analysis of fishery rehabilitation projects: A great lakes case study." Ocean and Shoreline Management 13, no. 3-4 (1990): 253–74. http://dx.doi.org/10.1016/0951-8312(90)90005-3.

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18

Loftus, D. H., C. H. Olver, E. H. Brown, P. J. Colby, W. L. Hartman, and D. H. Schupp. "Partitioning Potential Fish Yields from the Great Lakes." Canadian Journal of Fisheries and Aquatic Sciences 44, S2 (December 19, 1987): s417—s424. http://dx.doi.org/10.1139/f87-343.

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We proposed and implemented procedures for partitioning future fish yields from the Great Lakes into taxonomic components. These projections are intended as guidelines for Great Lakes resource managers and scientists. Attainment of projected yields depends on restoration of stable fish communities containing some large piscivores that will use prey efficiently, continuation of control of the sea lamprey (Petromyzon marinus), and restoration of high-quality fish habitat. Because Great Lakes fish communities were harmonic before their collapse, we used their historic yield properties as part of the basis for projecting potential yields of rehabilitated communities. This use is qualified, however, because of possible inaccuracies in the wholly commercial yield data, the presence now of greatly expanded sport fisheries that affect yield composition and magnitude, and some possibly irreversible changes since the 1950s in the various fish communities themselves. We predict that total yields from Lakes Superior, Huron, and Ontario will be increased through rehabilitation, while those from Lakes Michigan and Erie will decline. Salmonines and coregonines will dominate future yields from the upper lakes. The Lake Erie fishery will continue to yield mostly rainbow smelt (Osmerus mordax), but the relative importance of percids, especially of walleye (Stizostedion vitreum vitreum), will increase. In Lake Ontario, yields of salmonines will be increased. Managers will have to apply the most rigorous management strictures to major predator species.
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19

Leigh, Peter. "Benefits and Costs of the Ruffe Control Program for the Great Lakes Fishery." Journal of Great Lakes Research 24, no. 2 (January 1998): 351–60. http://dx.doi.org/10.1016/s0380-1330(98)70826-3.

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20

Mercado-Silva, Norman, Greg G. Sass, Brian M. Roth, Stephen Gilbert, and M. Jake Vander Zanden. "Impact of rainbow smelt (Osmerus mordax) invasion on walleye (Sander vitreus) recruitment in Wisconsin lakes." Canadian Journal of Fisheries and Aquatic Sciences 64, no. 11 (November 1, 2007): 1543–50. http://dx.doi.org/10.1139/f07-112.

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Rainbow smelt (Osmerus mordax) are invaders of inland lakes in the Laurentian Great Lakes region of North America and have negatively affected native fish populations. Walleye (Sander vitreus) comprise an important fishery throughout the Great Lakes region and could be affected by rainbow smelt invasions. We test for declines of young-of-the-year walleye (YOY-W) density in 12 of the 26 known rainbow smelt invaded lakes in Wisconsin. Invaded lakes showed significantly lower YOY-W densities than uninvaded lakes during the period 1985–2004. In 94% (17/18) of years, YOY-W densities from invaded lakes were lower than those from uninvaded lakes. Declines (~70%) in YOY-W densities were observed in three lakes with data from before and after rainbow smelt invasion. For 10 invaded lakes with more than two YOY-W density estimates between 1985 and 2004, YOY-W densities averaged 13% below expected densities. Our results demonstrate the potential impacts of rainbow smelt invasion on walleye tribal, commercial, and recreational fisheries and highlight the importance of preventing their further spread.
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21

Pritt, Jeremy J., Edward F. Roseman, and Timothy P. O'Brien. "Mechanisms driving recruitment variability in fish: comparisons between the Laurentian Great Lakes and marine systems." ICES Journal of Marine Science 71, no. 8 (May 27, 2014): 2252–67. http://dx.doi.org/10.1093/icesjms/fsu080.

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Abstract In his seminal work, Hjort (in Fluctuations in the great fisheries of Northern Europe. Conseil Parmanent International Pour L'Exploration De La Mar. Rapports et Proces-Verbaux, 20: 1–228, 1914) observed that fish population levels fluctuated widely, year-class strength was set early in life, and egg production by adults could not alone explain variability in year-class strength. These observations laid the foundation for hypotheses on mechanisms driving recruitment variability in marine systems. More recently, researchers have sought to explain year-class strength of important fish in the Laurentian Great Lakes and some of the hypotheses developed for marine fisheries have been transferred to Great Lakes fish. We conducted a literature review to determine the applicability of marine recruitment hypotheses to Great Lakes fish. We found that temperature, interspecific interactions, and spawner effects (abundance, age, and condition of adults) were the most important factors in explaining recruitment variability in Great Lakes fish, whereas relatively fewer studies identified bottom-up trophodynamic factors or hydrodynamic factors as important. Next, we compared recruitment between Great Lakes and Baltic Sea fish populations and found no statistical difference in factors driving recruitment between the two systems, indicating that recruitment hypotheses may often be transferable between Great Lakes and marine systems. Many recruitment hypotheses developed for marine fish have yet to be applied to Great Lakes fish. We suggest that future research on recruitment in the Great Lakes should focus on forecasting the effects of climate change and invasive species. Further, because the Great Lakes are smaller and more enclosed than marine systems, and have abundant fishery-independent data, they are excellent candidates for future hypothesis testing on recruitment in fish.
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22

Miehls, Scott, Paul Sullivan, Michael Twohey, Jessica Barber, and Rodney McDonald. "The future of barriers and trapping methods in the sea lamprey (Petromyzon marinus) control program in the Laurentian Great Lakes." Reviews in Fish Biology and Fisheries 30, no. 1 (November 25, 2019): 1–24. http://dx.doi.org/10.1007/s11160-019-09587-7.

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AbstractA major duty of the Great Lakes Fishery Commission (GLFC), created in 1955, was the development a program of eradication or management of sea lamprey populations in the Great Lakes for the protection of the Great Lakes fishery. Beginning in the 1980s the GLFC shifted sea lamprey control to an integrated pest management model seeking to deploy control measures which target multiple life stages. Currently control efforts focus on limiting the area of infestation using barriers to migratory adults and eradication of larvae from streams using selective pesticides. Feedback on program effectiveness is obtained by trapping migratory adult lamprey at a series of index sites around the basin. The GLFC continues to support multiple research initiatives to develop additional control, improve current control measures, and further advance the sea lamprey control program. During the past six decades sea lamprey control in the Great Lakes has evolved as the research program has identified technological advances. Here we summarize the current state and recent advancements for two of the sea lamprey control program’s core elements, barriers and traps, highlight challenges to be addressed to continue the advancement of these program elements, and provide a series of research questions to spur interest within the research community. Further, because considerable information about these program elements is scattered among grey literature and technical reports, we summarize the history of barriers and traps in sea lamprey control in the included appendices to provide relevant program background to anyone interested in pursuing these research topics.
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23

Milliman, Scott R., Barry L. Johnson, Richard C. Bishop, and Kevin J. Boyle. "The Bioeconomics of Resource Rehabilitation: A Commercial-Sport Analysis for a Great Lakes Fishery." Land Economics 68, no. 2 (May 1992): 191. http://dx.doi.org/10.2307/3146774.

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24

Bogue, Margaret Beattie. "In the Shadow of the Union Jack: British Legacies and Great Lakes Fishery Policy." Environmental Review: ER 11, no. 1 (1987): 19. http://dx.doi.org/10.2307/3984217.

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25

Heck, Nadine, Richard C. Stedman, and Marc Gaden. "Indicators to Evaluate the Social Dimensions of the Recreational Fishery in the Great Lakes." North American Journal of Fisheries Management 36, no. 3 (May 3, 2016): 477–84. http://dx.doi.org/10.1080/02755947.2016.1141126.

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26

Heck, Nadine, Richard C. Stedman, and Marc Gaden. "The integration of social science information into Great Lakes fishery management: Opportunities and challenges." Fisheries Research 167 (July 2015): 30–37. http://dx.doi.org/10.1016/j.fishres.2015.01.008.

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27

Kerr, S. R., and R. A. Ryder. "The Laurentian Great Lakes experience: a prognosis for the fisheries of Atlantic Canada." Canadian Journal of Fisheries and Aquatic Sciences 54, no. 5 (May 1, 1997): 1190–97. http://dx.doi.org/10.1139/f97-076.

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The fish production systems of Atlantic Canada are in a state of crisis, in the social, political, economic, and biological senses. We doubt that the true scope and provenance of the crisis have yet been apprehended by the responsible managers. Our view is that the obvious overfishing that precipitated the problem is but the first major instance of further devastation that will visit the fishery. We find numerous parallel behaviours among the various Atlantic fisheries and the patterns of demise of the fish production systems of the Great Lakes basin ecosystem. Unless management regimes awaken to these realities, the fisheries of Atlantic Canada are doomed to the same dismal scenarios as were witnessed in the Great Lakes. Properly understood, remedial measures painfully learned in the Great Lakes could usefully inform responsible management agencies in Atlantic Canada. A new institutional structure is required in Atlantic Canada to deal with the requirements of ecosystem management.
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28

McConville, Megan B., Natan M. Cohen, Shawn M. Nowicki, Stephen R. Lantz, Jase L. Hixson, Adam S. Ward, and Christina K. Remucal. "A field analysis of lampricide photodegradation in Great Lakes tributaries." Environmental Science: Processes & Impacts 19, no. 7 (2017): 891–900. http://dx.doi.org/10.1039/c7em00173h.

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29

Hartig, J. H., D. P. Dodge, D. Jester, J. Atkinson, R. Thoma, and K. Cullis. "Toward Integrating Remedial Action Planning and Fishery Management Planning in Great Lakes Areas of Concern." Fisheries 21, no. 2 (February 1996): 6–13. http://dx.doi.org/10.1577/1548-8446(1996)021<0006:tirapa>2.0.co;2.

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30

Thresher, Ronald E., Michael Jones, and D. Andrew R. Drake. "Evaluating active genetic options for the control of sea lamprey (Petromyzon marinus) in the Laurentian Great Lakes." Canadian Journal of Fisheries and Aquatic Sciences 76, no. 7 (July 2019): 1186–202. http://dx.doi.org/10.1139/cjfas-2018-0153.

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For more than two decades the Great Lakes Fishery Commission has sought tactics to complement, and potentially replace, the use of barriers and lampricides to control sea lamprey (Petromyzon marinus) in the Great Lakes, but thus far without success. This paper examines the potential of modern genetic technology to suppress these invasive populations. We identified six recombinant options that appeared to be moderately to highly feasible, most of which were judged by an expert panel as extremely low or low risk, and for which research and development was broadly supported by stakeholders. The two options judged to overall best combine high efficacy and low risks were a Mendelian “sex ratio drive” and genetically modifying a prey species combined with killing or sterilizing sea lamprey that fed on it. Core issues regarding use of genetic biocontrol in the Great Lakes include technical problems associated with maintaining a sea lamprey brood line, information gaps for most options, the extent of broader public support, and the extent and nature of national and international consultation required in making decisions about control options.
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31

Newsome, W. Harvey, and Paul Andrews. "Organochlorine Pesticides and Polychlorinated Biphenyl Congeners in Commercial Fish from the Great Lakes." Journal of AOAC INTERNATIONAL 76, no. 4 (July 1, 1993): 707–10. http://dx.doi.org/10.1093/jaoac/76.4.707.

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Abstract Fillets from 11 species of commercial fish from the Great Lakes were analyzed for residues of 39 polychlorinated biphenyl (PCB) congeners and 24 other organochlorine compounds. Eel and trout contained the highest amount of PCB (753 and 633 ppb wet weight, respectively) and other organochlorines (607 and 1404 ppb, respectively); perch and carp contained the lowest residues. The pentaand hexachlorinated PCBs were the major congeners in all species except whitefish, in which the tetrachlorinated congeners predominated. Toxaphene was the most abundant organochlorine pesticide in trout; p,p′ -DDE was the major component of this class in eel. Residue concentrations in commercial carp were compared with residues present in carp from a fishery closed to commercial operation. Although both PCB and organochlorine pesticide levels in carp were among the lowest for all commercial fish samples, levels from the contaminated area were among the highest.
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32

Knuth, Barbara A., Sally Lerner, Nancy A. Connelly, and Larry Gigliotti. "Fishery and Environmental Managers’ Attitudes About and Support For Lake Trout Rehabilitation in the Great Lakes." Journal of Great Lakes Research 21 (1995): 185–97. http://dx.doi.org/10.1016/s0380-1330(95)71090-5.

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33

Tans, Eric D. "Reviews of Science for Science Librarians: The Great Lakes Fishery—Current Status, Human Impacts, and Literature." Science & Technology Libraries 34, no. 1 (January 2, 2015): 43–66. http://dx.doi.org/10.1080/0194262x.2015.1005275.

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34

Hand, Carrol P., Stuart A. Ludsin, Brian J. Fryer, and J. Ellen Marsden. "Statolith microchemistry as a technique for discriminating among Great Lakes sea lamprey (Petromyzon marinus) spawning tributaries." Canadian Journal of Fisheries and Aquatic Sciences 65, no. 6 (June 2008): 1153–64. http://dx.doi.org/10.1139/f08-045.

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Laurentian Great Lakes fishery management agencies are seeking ways to identify natal origins of parasitic- and spawning-phase sea lamprey ( Petromyzon marinus ) so that efforts to control this invasive species can be prioritized. We developed laser-ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) as a technique to quantify elemental concentrations in larval sea lamprey statoliths and explored the use of statolith microchemistry as a tool to discriminate among larval sea lamprey production streams. Our analyses demonstrate that (i) traversing across the statolith with the laser is preferable to drilling down through its apex, (ii) preserving specimens in 95% ethanol versus freezing them has minimal effects on elemental concentrations, (iii) a minimum of 15 individuals per stream should accurately depict stream-specific statolith elemental signatures, and (iv) LA-ICP-MS is preferable to particle-induced X-ray emission (PIXE) for statolith analysis, based on higher precision, lower cost, reduced sampling-time requirements, and wider availability. Using LA-ICP-MS, we could discriminate among larvae from 13 streams located in Lakes Michigan, Huron, and Superior with 82% classification accuracy, indicating that this tool holds promise for determining natal origins of sea lamprey in the Great Lakes.
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35

Haeseker, Steven L., Michael L. Jones, Randall M. Peterman, James R. Bence, Wenjing Dai, and Gavin C. Christie. "Explicit consideration of uncertainty in Great Lakes fisheries management: decision analysis of sea lamprey (Petromyzon marinus) control in the St. Marys River." Canadian Journal of Fisheries and Aquatic Sciences 64, no. 10 (October 1, 2007): 1456–68. http://dx.doi.org/10.1139/f07-114.

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We used decision analysis to assist the Great Lakes Fishery Commission (GLFC) with sea lamprey (Petromyzon marinus) control in the St. Marys River, which connects Lake Superior to Lake Huron and until recently has been a major source of sea lamprey infestation of Lake Huron. The process involved decision-makers, managers, and experts in an analysis of management options, objectives, and critical uncertainties affecting the expected performance of alternative choices. We developed quantitative assessments of uncertainty about sea lamprey demographics and about the implementation effectiveness of three pest control options: trapping adult lampreys, sterile male releases, and lampricide treatment. We used a stochastic simulation model to forecast future parasitic sea lamprey abundance in Lake Huron for 10 management options. Management options that included enhanced levels of trapping and sterile male releases exhibited the best performance for all measures. Our analysis substantially influenced the GLFC strategy for the St. Marys River, providing an example of how explicit consideration of uncertainty using decision analysis can influence fishery management decisions.
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36

Mulvaney, Kate K., Seungyoon Lee, Tomas O. Höök, and Linda S. Prokopy. "Casting a net to better understand fisheries management: An affiliation network analysis of the Great Lakes Fishery Commission." Marine Policy 57 (July 2015): 120–31. http://dx.doi.org/10.1016/j.marpol.2015.03.008.

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37

Guthrie, Amanda G., William W. Taylor, Andrew M. Muir, Henry A. Regier, and Marc Gaden. "Linking Water Quality and Fishery Management Facilitated the Development of Ecosystem‐based Management in the Great Lakes Basin." Fisheries 44, no. 6 (June 2019): 288–92. http://dx.doi.org/10.1002/fsh.10240.

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38

Bi, Rujia, Yan Jiao, Can Zhou, and Eric Hallerman. "A Bayesian spatiotemporal approach to inform management unit appropriateness." Canadian Journal of Fisheries and Aquatic Sciences 76, no. 2 (February 2019): 217–37. http://dx.doi.org/10.1139/cjfas-2017-0526.

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One prerequisite for sustainable fisheries management is to match management actions with biological processes. Stocks are fundamental units for fisheries management. Understanding the spatial structure of fish stocks is critical for conducting defensible stock assessments, applying efficient management strategies, and ensuring the sustainability of fish stocks. Yellow perch (Perca flavescens) is an important fishery in the Great Lakes. The appropriateness of its management units (MUs) has been identified as of high concern by the Great Lakes Fisheries Commission. Here we established integrated nested Laplace approximations and stochastic partial differential equations as two powerful tools for modeling spatiotemporal patterns of fish relative biomass. These fast computational approaches were applied to fit a Bayesian hierarchical hurdle model to occurrence and positive mass of yellow perch caught in gill-net surveys. Yellow perch relative biomass index has clear temporal variation and spatial heterogeneity, with the two middle MUs for yellow perch within Lake Erie merging together. The method explicitly models the spatiotemporal correlation structure inherent in biomass survey data at a reasonable computational cost, and the estimated spatiotemporal correlation informs stock structure.
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39

Catianis, Irina, Dan Secrieru, Iulian Pojar, Dumitru Grosu, Albert Scrieciu, Ana Bianca Pavel, and Dan Vasiliu. "Water Quality, Sediment Characteristics and Benthic Status of the Razim-Sinoie Lagoon System, Romania." Open Geosciences 10, no. 1 (March 13, 2018): 12–33. http://dx.doi.org/10.1515/geo-2018-0002.

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AbstractRazim Lake is the biggest of Romania’s freshwater lakes and along with other basins as Golovita, Zmeica and Sinoie constitutes a system of great ecological significance, playing also an essential role in the supply of water for irrigation, fishery exploitation, farming, flood prevention, recreational navigation and water tourism. Due to their importance, the environmental conditions in the Razim - Sinoie coastal lakes have attracted an increased public attention in contemporary society. To assess the levels, dissemination and potential sources of contamination in the above-mentioned lagoon system, random sampling was used to collect water and sediment samples from every lake and several analytical techniques were performed to investigate their environmental characteristics. The results obtained from this study indicated that, in water, concentrations of various physico-chemical parameters are, mostly, in agreement with correlated environmental standards. Slight variations and/or occasional exceeding of the maximum admissible limits were generally limited to small areas showing levels that would not warrant special concern. In sediments, the mean concentrations of some specific trace metals were below the levels of potential effect. Benthic samples revealed 31 taxa belonging to 16 zoo-benthal subdivisions. The results of this study showed good ecological status despite local several natural and anthropogenic stressors as fishery exploitation, farming, recreational navigation and water tourism.
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40

Beeton, Alfred M. "Large freshwater lakes: present state, trends, and future." Environmental Conservation 29, no. 1 (March 2002): 21–38. http://dx.doi.org/10.1017/s0376892902000036.

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The large freshwater lakes of the world are an extremely valuable resource, not only because 68% of the global liquid surface fresh water is contained in them, but because of their importance to the economies, social structure, and viability of the riparian countries. This review provides decision makers with the knowledge of large lakes (≥ 500 km2) essential to establishing policies and implementing strategies compatible with sustainable development. This is achieved by considering the present state of the lakes, the extent of changes and factors causing them, long-term consequences of these changes, major threats and possible states of the lakes into the year 2025. Case studies of lakes are presented, namely the St Lawrence Great Lakes of North America as representatives of glacial scour lakes of North America, northern Europe and Asia, and the African Great Lakes as representatives of tropical tectonic lakes. Lake Baikal is also included because it is unique for its species, great age, and largest single volume of liquid surface fresh water. The Aral Sea is further included because of the ecological disaster following diversion of water away from its basin. The major impacts on large lakes are diversions, eutrophication, invasive species, land-use change, overexploitation of resources, and pollution. These impacts can or do affect all the representative lakes, but to varying degree. The St Lawrence Great Lakes have been severely impacted by eutrophication, land-use change, overfishing, invasive species and pollution. Eutrophication has been reversed for these lakes and constraints are now in place on land use change, such as shoreline alteration and destruction of wetlands. With the demise of most commercial fishing, overfishing is no longer as important. Invasive species have become a major problem as increasingly non-indigenous species gain access to the lakes. Pollution continues as a major impact. These problems are likely to continue and seriously impact use of the resources as well as bring about changes in the biota. Among the African Great Lakes, invasive species are a major problem in Lake Victoria, and eutrophication associated with land-use change and overexploitation of resources is a growing problem. Many endemic species have been lost and many are threatened, so that species associations will have changed by 2025. The Aral Sea continues to disappear and in the future, the remaining largest part of it will continue to become increasingly saline and eventually disappear. A small body of water will remain as a freshwater lake with a productive, although small, fishery. Lake Baikal shows evidence of pollution in the southern basin and is likely to be impacted by land-use changes, primarily logging. Some non-indigenous species are present, but so far, they are not a major problem. Overexploitation of resources in the watershed could lead to adverse impacts on inshore waters. Overfishing has been recognized and appears under control. The major threat to Baikal is continued and growing pollution. Climate change and pollution are global problems that will affect all lakes, large and small. At present, while some warming has occurred, climate change appears not to have impacted large lakes. Present studies on the Laurentian Great Lakes predict possible major impacts. Pollution, especially from persistent toxic substances such as PCBs, is a global problem. Diversion of water out or away from large lakes will become more of a threat as global human population growth continues and water supplies from rivers and ground water become depleted.
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41

Muir, A. M., D. M. Leonard, and C. C. Krueger. "Past, present and future of fishery management on one of the world’s last remaining pristine great lakes: Great Bear Lake, Northwest Territories, Canada." Reviews in Fish Biology and Fisheries 23, no. 3 (November 9, 2012): 293–315. http://dx.doi.org/10.1007/s11160-012-9295-1.

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42

Hilscherova, K., A. Blankenship, K. Kannan, M. Nie, L. L. Williams, K. Coady, B. L. Upham, J. E. Trosko, S. Bursian, and J. P. Giesy. "Oxidative Stress in Laboratory-Incubated Double-Crested Cormorant Eggs Collected from the Great Lakes." Archives of Environmental Contamination and Toxicology 45, no. 4 (December 1, 2003): 533–46. http://dx.doi.org/10.1007/s00244-003-0156-8.

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43

Alekseeva, N. K., S. Yu Evgrafova, A. E. Detsura, A. V. Guzeva, M. K. Meteleva, and I. V. Fedorova. "An availibility of arctic lakes organic sediments to microbial degradation: a laboratory incubation experiment." Arctic and Antarctic Research 67, no. 1 (March 23, 2021): 100–121. http://dx.doi.org/10.30758/0555-2648-2021-67-1-100-121.

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The water ecosystems of the Arctic region are most vulnerable to modern climatic changes since the global biogeochemical processes mostly occur on the territories of the permafrost zone. Aquatic ecosystems show a high degree of sensitivity to climatic changes; both in these and in other ecosystems, the biogeochemical processes are intense. These water bodies are located in the permafrost zone, which is vulnerable to temperature increases. The paper gives new insights into the fundamental research question of how fast the organic matter of thawing permafrost can be converted to greenhouse gases emitted into the atmosphere (CO2, CH4). We aimed to assess the microbial response and the associated release of CO2 and CH4 from the Arctic lakes in response to temperature increase. We investigated lakes located in the Lena River delta in the Samoylov Island, Russia, at 72° 22′ N, 126° 28′ E. Bottom sediments from three thermokarst and three oxbow lakes were anaerobically incubated in the laboratory at two temperature regimes (at 4 °C and at 25 °C). All the oxbow lakes have shown similar dynamics of methane emission both at low temperatures (4 °C) and at high temperatures (25 °C). The shift of carbon isotopic composition in methane has indicated that methane is emitted in all the oxbow lakes with a similar composition of microbial communities. In the thermokarst lakes, the emission of methane in the sediments proceeded differently at low and at high temperatures. These results have indicated a dissimilar composition of methanogenic / methanotrophic populations in the thermokarst and oxbow lakes. In both cases, the temperature increase caused a growth in methane emission from the sediments of the Arctic lakes. The thermokarst lakes will make a greater contribution to methane emission than the oxbow lakes. Thus, it is believed that the emission of methane from the thermokarst lakes will rise from 6 to 46 times due to ambient temperature increase. Methane emission from the oxbow lakes will grow from 1.8 to 7.6 times. Our results suggest that with the global warming both thermokarst and oxbow lakes could become a great source of methane emission into the atmosphere.
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44

Vélez-Espino, Luis Antonio, Robert L. McLaughlin, and Thomas C. Pratt. "Management inferences from a demographic analysis of sea lamprey (Petromyzon marinus) in the Laurentian Great Lakes." Canadian Journal of Fisheries and Aquatic Sciences 65, no. 2 (February 1, 2008): 227–44. http://dx.doi.org/10.1139/f07-166.

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We use matrix models incorporating uncertainty in values of life history traits and density-dependent survival to assess pest management strategies implemented by the Great Lakes Fishery Commission to control nonnative sea lamprey (Petromyzon marinus) in the Laurentian Great Lakes. The primary method of sea lamprey control has been treatment of rearing tributaries with chemical lampricides, but release of sterilized males and deployment of migratory barriers and traps are important components of the management plan. Uncertainties in the effectiveness of alternative control remain, however. Our models demonstrated that the management target of reducing lampricide use by 20% while maintaining current levels of control could be achieved if alternative methods are used to suppress current lake-wide fecundity rates by 49%–65%, assuming equal lampricide efficiency on larvae and metamorphosing individuals, or by 42%–55% when lampricide mortality on larvae is assumed to be half of that on metamorphosing individuals. At current levels of lampricide use, reduction to 72%–88% of current fecundity rates is recommended to ensure long-term control of sea lamprey populations in the face of uncertainty in current estimates of population growth rates. New control options targeting additional vital rates, such as survival of the parasitic life stage, could further reduce reliance on lampricides while maintaining effective sea lamprey control.
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45

Alves, Jose-Henrique G. M., Arun Chawla, Hendrik L. Tolman, David Schwab, Gregory Lang, and Greg Mann. "The Operational Implementation of a Great Lakes Wave Forecasting System at NOAA/NCEP*." Weather and Forecasting 29, no. 6 (December 1, 2014): 1473–97. http://dx.doi.org/10.1175/waf-d-12-00049.1.

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Abstract The development of a Great Lakes wave forecasting system at NOAA’s National Centers for Environmental Prediction (NCEP) is described. The system is an implementation of the WAVEWATCH III model, forced with atmospheric data from NCEP’s regional Weather Research and Forecasting (WRF) Model [the North American Mesoscale Model (NAM)] and the National Digital Forecast Database (NDFD). Reviews are made of previous Great Lakes wave modeling efforts. The development history of NCEP’s Great Lakes wave forecasting system is presented. A performance assessment is made of model wind speeds, as well as wave heights and periods, relative to National Data Buoy Center (NDBC) measurements. Performance comparisons are made relative to NOAA’s Great Lakes Environmental Research Laboratory (GLERL) wave prediction system. Results show that 1- and 2-day forecasts from NCEP have good skill in predicting wave heights and periods. NCEP’s system provides a better representation of measured wave periods, relative to the GLERL model in most conditions. Wave heights during storms, however, are consistently underestimated by NCEP’s current operational system, whereas the GLERL model provides close agreement with observations. Research efforts to develop new wave-growth parameterizations and overcome this limitation have led to upgrades to the WAVEWATCH III model, scheduled to become operational at NCEP in 2013. Results are presented from numerical experiments made with the new wave-model physics, showing significant improvements to the skill of NCEP’s Great Lakes wave forecasting system in predicting storm wave heights.
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46

Hansen, Gretchen J. A., and Michael L. Jones. "A rapid assessment approach to prioritizing streams for control of Great Lakes sea lampreys (Petromyzon marinus): a case study in adaptive management." Canadian Journal of Fisheries and Aquatic Sciences 65, no. 11 (November 2008): 2471–84. http://dx.doi.org/10.1139/f08-153.

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We developed and evaluated an alternative method (rapid assessment or RA) for assessment of larval sea lampreys, Petromyzon marinus . We determined that using RA would result in at least as many, if not more, sea lampreys being killed than would using the current assessment method (quantitative assessment sampling or QAS) to select streams for lampricide treatment. Both assessment methods were carried out simultaneously throughout the entire Great Lakes basin from 2005 to 2007. RA required fewer resources than the current method and thus allowed for the chemical treatment of additional streams with lampricides, given a fixed overall budget for control. Population estimates generated from the QAS surveys showed that using RA would result in approximately equal numbers of metamorphosing lamprey and greater numbers of larval lamprey killed than by using QAS. Mark–recapture results indicated that prioritizing streams for treatment using RA may result in higher numbers of metamorphosing and larval lampreys killed than by using QAS. RA is currently being adopted throughout the Great Lakes as the method for assessing larval sea lamprey populations. Other fishery management programs may benefit from examining the value of their assessment programs relative to other uses of resources.
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47

Young, Bradley, BJ Allaire, and Stephen Smith. "Achieving Sea Lamprey Control in Lake Champlain." Fishes 6, no. 1 (January 26, 2021): 2. http://dx.doi.org/10.3390/fishes6010002.

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The control of parasitic sea lamprey in Lake Champlain has been a necessary component of its fishery restoration and recovery goals for 30 years. While adopting the approach of the larger and established sea lamprey control program of the Laurentian Great Lakes, local differences emerged that shifted management focus and effort as the program evolved. Increased investment in lamprey assessment and monitoring revealed under-estimations of population density and distribution in the basin, where insufficient control efforts went unnoticed. As control efforts improved in response to a better understanding of the population, the effects of lamprey on the fishery lessened. A long-term evaluation of fishery responses when lamprey control was started, interrupted, delayed, and enhanced provided evidence of a recurring relationship between the level of control effort applied and the measured suppression of the parasitic sea lamprey population. Changes in levels of control efforts over time showed repeatedly that measurable suppression of the parasitic population required effective control of 80% of the known larval population. Understanding the importance of assessment and monitoring and the relationship between control effort and population suppression has led to recognition that a comprehensive, not incremental, approach is needed to achieve effective control of sea lamprey in Lake Champlain.
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48

West, John J. Van. "Ecological and Economic Dependence in a Great Lakes Community-Based Fishery: Fishermen in the Smelt Fisheries of Port Dover, Ontario." Journal of Canadian Studies 24, no. 2 (May 1989): 95–115. http://dx.doi.org/10.3138/jcs.24.2.95.

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49

Jensen, A. L. "Larkin's Predation Model of Lake Trout (Salvelinus namaycush) Extinction with Harvesting and Sea Lamprey (Petromyzon marinus) Predation: A Qualitative Analysis." Canadian Journal of Fisheries and Aquatic Sciences 51, no. 4 (April 1, 1994): 942–45. http://dx.doi.org/10.1139/f94-093.

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After invasion of the Great Lakes by the parasitic marine sea lamprey (Petromyzon marinus), lake trout (Salvelinus namaycush) populations crashed, but there remains some uncertainty concerning the relative importance of sea lamprey predation and harvesting in destruction of the fisheries. Some investigators believe overharvest was important; others think that the sea lamprey alone was enough. Simple models of predation assume monophagous predators and do not predict extinction of prey, but Larkin's modification of the Lotka–Volterra model results in extinction under some circumstances. The dynamics of sea lamprey predation on lake trout were investigated using Larkin's model, and crude estimates of the model parameters indicate that extinction is a likely outcome with or without a fishery.
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50

Richter, Catherine A., Allison N. Evans, Maureen K. Wright-Osment, James L. Zajicek, Scott A. Heppell, Stephen C. Riley, Charles C. Krueger, and Donald E. Tillitt. "Paenibacillus thiaminolyticus is not the cause of thiamine deficiency impeding lake trout (Salvelinus namaycush) recruitment in the Great Lakes." Canadian Journal of Fisheries and Aquatic Sciences 69, no. 6 (June 2012): 1056–64. http://dx.doi.org/10.1139/f2012-043.

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Thiamine (vitamin B1) deficiency is a global concern affecting wildlife, livestock, and humans. In Great Lakes salmonines, thiamine deficiency causes embryo mortality and is an impediment to restoration of native lake trout ( Salvelinus namaycush ) stocks. Thiamine deficiency in fish may result from a diet of prey with high levels of thiaminase I. The discoveries that the bacterial species Paenibacillus thiaminolyticus produces thiaminase I, is found in viscera of thiaminase-containing prey fish, and causes mortality when fed to lake trout in the laboratory provided circumstantial evidence implicating P. thiaminolyticus. This study quantified the contribution of P. thiaminolyticus to the total thiaminase I activity in multiple trophic levels of Great Lakes food webs. Unexpectedly, no relationship between thiaminase activity and either the amount of P. thiaminolyticus thiaminase I protein or the abundance of P. thiaminolyticus cells was found. These results demonstrate that P. thiaminolyticus is not the primary source of thiaminase activity affecting Great Lakes salmonines and calls into question the long-standing assumption that P. thiaminolyticus is the source of thiaminase in other wild and domestic animals.
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