Using Diets to Reveal Overlap and Egg Predation among Benthivorous Fishes in Lake Michigan
Ecological stability in the Laurentian Great Lakes has been altered by nonindigenous species, such as the Round Goby Neogobius melanostomus and dreissenid mussels, and by declines in native amphipods Diporeia spp. We evaluated whether these changes could influence diet overlap between three benthivo...
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2013
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Online Access: | https://hdl.handle.net/2027.42/141248 https://doi.org/10.1080/00028487.2012.756431 |
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ftumdeepblue:oai:deepblue.lib.umich.edu:2027.42/141248 |
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openpolar |
institution |
Open Polar |
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University of Michigan: Deep Blue |
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unknown |
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Natural Resources and Environment Science |
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Natural Resources and Environment Science Mychek‐londer, Justin G. Bunnell, David B. Stott, Wendylee Diana, James S. French, John R. P. Chriscinske, Margret A. Using Diets to Reveal Overlap and Egg Predation among Benthivorous Fishes in Lake Michigan |
topic_facet |
Natural Resources and Environment Science |
description |
Ecological stability in the Laurentian Great Lakes has been altered by nonindigenous species, such as the Round Goby Neogobius melanostomus and dreissenid mussels, and by declines in native amphipods Diporeia spp. We evaluated whether these changes could influence diet overlap between three benthivorous fishes (Slimy Sculpin Cottus cognatus, Deepwater Sculpin Myoxocephalus thompsonii, and Round Goby) and whether predation on eggs of native species was occurring. We examined diets of fish collected at depths of 69â 128Â m in Lake Michigan offshore of Frankfort and Muskegon, Michigan, and Two Rivers and Sturgeon Bay, Wisconsin, during Januaryâ May 2009 and 2010. Important prey (by dry weight proportion and by percent frequency of occurrence) for Slimy Sculpin were Mysis (0.34; 45%), Diporeia (0.16; 34%), and Limnocalanus macrurus (0.22; 68%); important prey for Deepwater Sculpin were Mysis (0.74; 92%) and Diporeia (0.16; 54%). Round Goby consumed mainly bivalves (i.e., dreissenids: 0.68; 95%) and Mysis (0.15; 37%). The two sculpin species consumed the eggs of Bloaters Coregonus hoyi (Slimy Sculpin: 0.04, 11%; Deepwater Sculpin: 0.02, 7%) and the eggs of Deepwater Sculpin (Slimy Sculpin: 0.03, 13%; Deepwater Sculpin: 0.05, 16%) during Februaryâ May at all sites. Round Goby also consumed eggs of these species but at lower levels (â ¤0.01; <1%). Diet overlap was identified between sculpin species at Frankfort and Sturgeon Bay, suggesting possible interspecific competition, but their diets did not overlap at Two Rivers; diet overlap was never observed between Round Goby and either sculpin species. Given that (1) diet overlap varied by site and (2) diet proportions varied spatially more than temporally, benthivores appear to be exhibiting localized responses to recent ecological changes. Overall, these results reveal that egg predation and interspecific competition could be important interactions to consider in future examinations of the population dynamics of these species or in ecosystem models that forecast how ... |
format |
Article in Journal/Newspaper |
author |
Mychek‐londer, Justin G. Bunnell, David B. Stott, Wendylee Diana, James S. French, John R. P. Chriscinske, Margret A. |
author_facet |
Mychek‐londer, Justin G. Bunnell, David B. Stott, Wendylee Diana, James S. French, John R. P. Chriscinske, Margret A. |
author_sort |
Mychek‐londer, Justin G. |
title |
Using Diets to Reveal Overlap and Egg Predation among Benthivorous Fishes in Lake Michigan |
title_short |
Using Diets to Reveal Overlap and Egg Predation among Benthivorous Fishes in Lake Michigan |
title_full |
Using Diets to Reveal Overlap and Egg Predation among Benthivorous Fishes in Lake Michigan |
title_fullStr |
Using Diets to Reveal Overlap and Egg Predation among Benthivorous Fishes in Lake Michigan |
title_full_unstemmed |
Using Diets to Reveal Overlap and Egg Predation among Benthivorous Fishes in Lake Michigan |
title_sort |
using diets to reveal overlap and egg predation among benthivorous fishes in lake michigan |
publisher |
Wiley Periodicals, Inc. |
publishDate |
2013 |
url |
https://hdl.handle.net/2027.42/141248 https://doi.org/10.1080/00028487.2012.756431 |
genre |
Cottus cognatus Slimy sculpin |
genre_facet |
Cottus cognatus Slimy sculpin |
op_relation |
Mychek‐londer, Justin G. Bunnell, David B.; Stott, Wendylee; Diana, James S.; French, John R. P.; Chriscinske, Margret A. (2013). "Using Diets to Reveal Overlap and Egg Predation among Benthivorous Fishes in Lake Michigan." Transactions of the American Fisheries Society 142(2): 492-504. 0002-8487 1548-8659 https://hdl.handle.net/2027.42/141248 doi:10.1080/00028487.2012.756431 Transactions of the American Fisheries Society T. J. Pitcher, 2001 Fisheries managed to rebuild ecosystems? reconstructing the past to salvage the future, Ecological Applications, 11: Pages 601 â 617. W. J. Christie, 1974 Changes in the fish species composition of the Great Lakes, Journal of the Fisheries Research Board of Canada, 31: Pages 827 â 854. D. V. Rottiers, 1965. In Some aspects of the life history of Cottus cognatus in Lake Michigan. Master’s thesis, University of Michigan, Ann Arbor. D. E. Richardson, J. A. Hare, M. J. Fogarty and J. S. Link, 2011 Role of egg predation by Haddock in the decline of an Atlantic Herring population, Proceedings of the National Academy of Sciences of the USA, 108: Pages 13606 â 13611. P. E. Rosel and T. D. Kocher, 2002 DNAâ based identification of larval cod in stomach contents of predatory fishes, Journal of Experimental Marine Biology and Ecology, 267: Pages 75 â 88. E. F. Roseman, D. J. Jude, M. K. Raths, T. G. Coon and W. W. Taylor, 1998 Occurrence of the Deepwater Sculpin ( Myoxocephalus thompsoni ) in western Lake Erie, Journal of Great Lakes Research, 24: Pages 479 â 483. E. F. Roseman, W. W. Taylor, D. B. Hayes, A. L. Jones and J. T. Francis, 2006 Predation on Walleye eggs by fish on reefs in western Lake Erie, Journal of Great Lakes Research, 32: Pages 415 â 423. J. S. Schaeffer, A. Bowen, M. Thomas, J. R. P. French III and G. L. Curtis, 2005 Invasion history, proliferation, and offshore diet of the Round Goby Neogobius melanostomus in western Lake Huron, USA, Journal of Great Lakes Research, 31: Pages 414 â 425. T. W. Schoener, 1970 Nonsynchronous spatial overlap of lizards in patchy habitats, Ecology, 51: Pages 408 â 418. M. C. Scott and G. S. Helfman, 2001 Native invasions, homogenization, and the mismeasure of integrity of fish assemblages, Fisheries, 26 11, Pages 6 â 15. M. A. Shea and J. C. Makarewicz, 1989 Production, biomass, and trophic interactions of Mysis relicta in Lake Ontario, Journal of Great Lakes Research, 15: Pages 223 â 232. S. H. Smith, 1968 Species succession and fishery exploitation in the Great Lakes, Journal of the Fisheries Research Board of Canada, 25: Pages 667 â 693. G. B. Steinhart, E. A. Marschall and R. A. Stein, 2004 Round Goby predation on Smallmouth Bass offspring in nests during simulated catchâ andâ release angling, Transactions of the American Fisheries Society, 133: Pages 121 â 131. H. M. Tyus and J. F. Saunders III., 2000 Nonnative fish control and endangered fish recovery: lessons from the Colorado River, Fisheries, 25 9, Pages 17 â 24. H. A. Vanderploeg, T. F. Nalepa, D. J. Jude, E. L. Mills, K. T. Holeck, J. R. Liebig, I. A. Grigorovich and H. Ojaveer, 2002 Dispersal and emerging ecological impacts of Pontoâ Caspian species in the Laurentian Great Lakes, Canadian Journal of Fisheries and Aquatic Sciences, 59: Pages 1209 â 1228. H. A. Vanderploeg, S. A. Pothoven, G. L. Fahnenstiel, J. F. Cavaletto, J. R. Liebig, C. A. Stow, T. F. Nalepa, C. P. Madenjian and D. B. Bunnell, 2012 Seasonal zooplankton dynamics in Lake Michigan: disentangling impacts of resource limitation, ecosystem engineering, and predation during a critical ecosystem transition, Journal of Great Lakes Research, 38: Pages 336 â 352. A. Vilaâ Gispert, M. G. Fox, L. Zamora and R. Morenoâ Amich, 2007 Morphological variation in Pumpkinseed Lepomis gibbosus introduced into Iberian lakes and reservoirs; adaptations to habitat type and diet?, Journal of Fish Biology, 71: Pages 163 â 181. M. G. Walsh, D. E. Dittman and R. O’Gorman, 2007 Occurrence and food habits of the Round Goby in the profundal zone of southwestern Lake Ontario, Journal of Great Lakes Research, 33: Pages 83 â 92. L. Wells, 1980. In Food of Alewives, Yellow Perch, Spottail Shiners, Troutâ perch, and Slimy and Fourhorn Sculpins in southeastern Lake Michigan, U.S. Fish and Wildlife Service, Technical Paper 98, Great Lakes Science Center, Ann Arbor, Michigan. L. Wells and A. L. McLain, 1973 Lake Michigan: man’s effects on native fish stocks and other biota, Great Lakes Fishery Commission Technical Report 20. K. O. Winemiller, 1989 Ontogenetic diet shifts and resource partitioning among piscivorous fishes in the Venezuelan llanos, Environmental Biology of Fishes, 26: Pages 177 â 199. J. A. Wojcik, M. S. Evans and D. J. Jude, 1986 Food of Deepwater Sculpin, Myoxocephalus thompsoni, from southeastern Lake Michigan, Journal of Great Lakes Research, 12: Pages 225 â 231. M. S. Zimmerman and C. C. Krueger, 2009 An ecosystem perspective on reâ establishing native deepwater fishes in the Laurentian Great Lakes, North American Journal of Fisheries Management, 29: Pages 1352 â 1371. E. H. Ahlstrom and H. G. Moser, 1976 Eggs and larvae of fishes and their role in systematic investigations and in fisheries, Revue des Travaux de l’Institut des Pêches Maritimes, 40 3/4, Pages 379 â 398. S. F. Altschul, W. Gish, W. Miller, E. W. Myers and D. J. Lipman, 1990 Basic local alignment search tool, Journal of Molecular Biology, 215: Pages 403 â 410. T. E. Andrew and A. Herzig, 1984 The respiration rate of the resting eggs of Leptodora kindti (Focke 1844) and Bythotrephes longimanus Leydig 1860 (Crustacea, Cladocera) at environmentally encountered temperatures, Oecologia, 64: Pages 241 â 244. S. Balshine, A. Verma, V. Chant and T. Theysmeyer, 2005 Competitive interactions between Round Gobies and Logperch, Journal of Great Lakes Research, 31: Pages 68 â 77. R. P. Barbiero, D. B. Bunnell, D. C. Rockwell and M. L. Tuchman, 2009 Recent increases in the large glacialâ relict calanoid Limnocalanus macrurus in Lake Michigan, Journal of Great Lakes Research, 35: Pages 285 â 292. A. C. Benke, 1990 A perspective on America’s vanishing streams, Journal of the North American Benthological Society, 9: Pages 77 â 88. M. A. Bergstrom and A. F. Mensinger, 2009 Interspecific resource competition between the invasive Round Goby and three native species: Logperch, Slimy Sculpin, and Spoonhead Sculpin, Transactions of the American Fisheries Society, 138: Pages 1009 â 1017. H. H. Bottrell, A. Duncan, Z. M. Gliwicz, E. Grygierek, A. Herzig, A. Hillbrichtâ Ilkowska, H. Kurasawa, P. Larsson and T. Weglenska, 1976 A review of some problems in zooplankton production studies, Norwegian Journal of Zoology, 24: Pages 419 â 456. S. B. Brandt, 1986a Disappearance of the Deepwater Sculpin ( Myoxocephalus thompsoni ) from Lake Ontario: the keystone predator hypothesis, Journal of Great Lakes Research, 12: Pages 18 â 24. S. B. Brandt, 1986b Ontogenetic shifts in habitat, diet, and dielâ feeding periodicity of Slimy Sculpin in Lake Ontario, Transactions of the American Fisheries Society, 115: Pages 711 â 715. D. B. Bunnell, S. R. David and C. P. Madenjian, 2009a Decline in Bloater fecundity in southern Lake Michigan after decline of Diporeia, Journal of Great Lakes Research, 35: Pages 45 â 49. D. B. Bunnell, C. P. Madenjian, J. D. Holuszko, J. V. Adams and J. R. P. French III., 2009b Expansion of Dreissena into offshore waters of Lake Michigan and potential impacts on fish populations, Journal of Great Lakes Research, 35: Pages 74 â 80. C. J. Byron and J. S. Link, 2010 Stability in the feeding ecology of four demersal fish predators in the US northeast shelf large marine ecosystem, Marine Ecology Progress Series, 406: Pages 239 â 250. L. Carreonâ Martinez, T. B. Johnson, S. A. Ludsin and D. D. Heath, 2011 Utilization of stomach content DNA to determine diet diversity in piscivorous fishes, Journal of Fish Biology, 78: Pages 1170 â 1182. M. A. Chotkowski and J. E. Marsden, 1999 Round Goby and Mottled Sculpin predation on Lake Trout eggs and fry: field predictions from laboratory experiments, Journal of Great Lakes Research, 25: Pages 26 â 35. V. Christensen, 1995 A model of trophic interactions in the North Sea in 1981, the year of the stomach, Dana, 11: Pages 1 â 28. V. Christensen and C. J. Walters, 2004 Ecopath with Ecosim: methods, capabilities and limitations, Ecological Modelling, 172: Pages 109 â 139. N. Daan, A. D. Rijnsdorp and G. R. van Overbeeke, 1985 Predation by North Sea herring Clupea harengus on eggs of plaice Pleuronectes platessa and cod Gadus morhua, Transactions of the American Fisheries Society, 114: Pages 499 â 506. B. M. Davis, J. F. Savino and L. M. Ogilvie, 2007 Diet niches of major forage fish in Lake Michigan, Advances in Limnology, 60: Pages 261 â 275. R. Dermott, 2001 Sudden disappearance of the amphipod Diporeia from eastern Lake Ontario, 1993â 1995, Journal of Great Lakes Research, 27: Pages 423 â 433. |
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Transactions of the American Fisheries Society |
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ftumdeepblue:oai:deepblue.lib.umich.edu:2027.42/141248 2023-08-20T04:06:00+02:00 Using Diets to Reveal Overlap and Egg Predation among Benthivorous Fishes in Lake Michigan Mychek‐londer, Justin G. Bunnell, David B. Stott, Wendylee Diana, James S. French, John R. P. Chriscinske, Margret A. 2013-03 application/pdf https://hdl.handle.net/2027.42/141248 https://doi.org/10.1080/00028487.2012.756431 unknown Wiley Periodicals, Inc. Taylor & Francis Group Mychek‐londer, Justin G. Bunnell, David B.; Stott, Wendylee; Diana, James S.; French, John R. P.; Chriscinske, Margret A. (2013). "Using Diets to Reveal Overlap and Egg Predation among Benthivorous Fishes in Lake Michigan." Transactions of the American Fisheries Society 142(2): 492-504. 0002-8487 1548-8659 https://hdl.handle.net/2027.42/141248 doi:10.1080/00028487.2012.756431 Transactions of the American Fisheries Society T. J. Pitcher, 2001 Fisheries managed to rebuild ecosystems? reconstructing the past to salvage the future, Ecological Applications, 11: Pages 601 â 617. W. J. Christie, 1974 Changes in the fish species composition of the Great Lakes, Journal of the Fisheries Research Board of Canada, 31: Pages 827 â 854. D. V. Rottiers, 1965. In Some aspects of the life history of Cottus cognatus in Lake Michigan. Master’s thesis, University of Michigan, Ann Arbor. D. E. Richardson, J. A. Hare, M. J. Fogarty and J. S. Link, 2011 Role of egg predation by Haddock in the decline of an Atlantic Herring population, Proceedings of the National Academy of Sciences of the USA, 108: Pages 13606 â 13611. P. E. Rosel and T. D. Kocher, 2002 DNAâ based identification of larval cod in stomach contents of predatory fishes, Journal of Experimental Marine Biology and Ecology, 267: Pages 75 â 88. E. F. Roseman, D. J. Jude, M. K. Raths, T. G. Coon and W. W. Taylor, 1998 Occurrence of the Deepwater Sculpin ( Myoxocephalus thompsoni ) in western Lake Erie, Journal of Great Lakes Research, 24: Pages 479 â 483. E. F. Roseman, W. W. Taylor, D. B. Hayes, A. L. Jones and J. T. Francis, 2006 Predation on Walleye eggs by fish on reefs in western Lake Erie, Journal of Great Lakes Research, 32: Pages 415 â 423. J. S. Schaeffer, A. Bowen, M. Thomas, J. R. P. French III and G. L. Curtis, 2005 Invasion history, proliferation, and offshore diet of the Round Goby Neogobius melanostomus in western Lake Huron, USA, Journal of Great Lakes Research, 31: Pages 414 â 425. T. W. Schoener, 1970 Nonsynchronous spatial overlap of lizards in patchy habitats, Ecology, 51: Pages 408 â 418. M. C. Scott and G. S. Helfman, 2001 Native invasions, homogenization, and the mismeasure of integrity of fish assemblages, Fisheries, 26 11, Pages 6 â 15. M. A. Shea and J. C. Makarewicz, 1989 Production, biomass, and trophic interactions of Mysis relicta in Lake Ontario, Journal of Great Lakes Research, 15: Pages 223 â 232. S. H. Smith, 1968 Species succession and fishery exploitation in the Great Lakes, Journal of the Fisheries Research Board of Canada, 25: Pages 667 â 693. G. B. Steinhart, E. A. Marschall and R. A. Stein, 2004 Round Goby predation on Smallmouth Bass offspring in nests during simulated catchâ andâ release angling, Transactions of the American Fisheries Society, 133: Pages 121 â 131. H. M. Tyus and J. F. Saunders III., 2000 Nonnative fish control and endangered fish recovery: lessons from the Colorado River, Fisheries, 25 9, Pages 17 â 24. H. A. Vanderploeg, T. F. Nalepa, D. J. Jude, E. L. Mills, K. T. Holeck, J. R. Liebig, I. A. Grigorovich and H. Ojaveer, 2002 Dispersal and emerging ecological impacts of Pontoâ Caspian species in the Laurentian Great Lakes, Canadian Journal of Fisheries and Aquatic Sciences, 59: Pages 1209 â 1228. H. A. Vanderploeg, S. A. Pothoven, G. L. Fahnenstiel, J. F. Cavaletto, J. R. Liebig, C. A. Stow, T. F. Nalepa, C. P. Madenjian and D. B. Bunnell, 2012 Seasonal zooplankton dynamics in Lake Michigan: disentangling impacts of resource limitation, ecosystem engineering, and predation during a critical ecosystem transition, Journal of Great Lakes Research, 38: Pages 336 â 352. A. Vilaâ Gispert, M. G. Fox, L. Zamora and R. Morenoâ Amich, 2007 Morphological variation in Pumpkinseed Lepomis gibbosus introduced into Iberian lakes and reservoirs; adaptations to habitat type and diet?, Journal of Fish Biology, 71: Pages 163 â 181. M. G. Walsh, D. E. Dittman and R. O’Gorman, 2007 Occurrence and food habits of the Round Goby in the profundal zone of southwestern Lake Ontario, Journal of Great Lakes Research, 33: Pages 83 â 92. L. Wells, 1980. In Food of Alewives, Yellow Perch, Spottail Shiners, Troutâ perch, and Slimy and Fourhorn Sculpins in southeastern Lake Michigan, U.S. Fish and Wildlife Service, Technical Paper 98, Great Lakes Science Center, Ann Arbor, Michigan. L. Wells and A. L. McLain, 1973 Lake Michigan: man’s effects on native fish stocks and other biota, Great Lakes Fishery Commission Technical Report 20. K. O. Winemiller, 1989 Ontogenetic diet shifts and resource partitioning among piscivorous fishes in the Venezuelan llanos, Environmental Biology of Fishes, 26: Pages 177 â 199. J. A. Wojcik, M. S. Evans and D. J. Jude, 1986 Food of Deepwater Sculpin, Myoxocephalus thompsoni, from southeastern Lake Michigan, Journal of Great Lakes Research, 12: Pages 225 â 231. M. S. Zimmerman and C. C. Krueger, 2009 An ecosystem perspective on reâ establishing native deepwater fishes in the Laurentian Great Lakes, North American Journal of Fisheries Management, 29: Pages 1352 â 1371. E. H. Ahlstrom and H. G. Moser, 1976 Eggs and larvae of fishes and their role in systematic investigations and in fisheries, Revue des Travaux de l’Institut des Pêches Maritimes, 40 3/4, Pages 379 â 398. S. F. Altschul, W. Gish, W. Miller, E. W. Myers and D. J. Lipman, 1990 Basic local alignment search tool, Journal of Molecular Biology, 215: Pages 403 â 410. T. E. Andrew and A. Herzig, 1984 The respiration rate of the resting eggs of Leptodora kindti (Focke 1844) and Bythotrephes longimanus Leydig 1860 (Crustacea, Cladocera) at environmentally encountered temperatures, Oecologia, 64: Pages 241 â 244. S. Balshine, A. Verma, V. Chant and T. Theysmeyer, 2005 Competitive interactions between Round Gobies and Logperch, Journal of Great Lakes Research, 31: Pages 68 â 77. R. P. Barbiero, D. B. Bunnell, D. C. Rockwell and M. L. Tuchman, 2009 Recent increases in the large glacialâ relict calanoid Limnocalanus macrurus in Lake Michigan, Journal of Great Lakes Research, 35: Pages 285 â 292. A. C. Benke, 1990 A perspective on America’s vanishing streams, Journal of the North American Benthological Society, 9: Pages 77 â 88. M. A. Bergstrom and A. F. Mensinger, 2009 Interspecific resource competition between the invasive Round Goby and three native species: Logperch, Slimy Sculpin, and Spoonhead Sculpin, Transactions of the American Fisheries Society, 138: Pages 1009 â 1017. H. H. Bottrell, A. Duncan, Z. M. Gliwicz, E. Grygierek, A. Herzig, A. Hillbrichtâ Ilkowska, H. Kurasawa, P. Larsson and T. Weglenska, 1976 A review of some problems in zooplankton production studies, Norwegian Journal of Zoology, 24: Pages 419 â 456. S. B. Brandt, 1986a Disappearance of the Deepwater Sculpin ( Myoxocephalus thompsoni ) from Lake Ontario: the keystone predator hypothesis, Journal of Great Lakes Research, 12: Pages 18 â 24. S. B. Brandt, 1986b Ontogenetic shifts in habitat, diet, and dielâ feeding periodicity of Slimy Sculpin in Lake Ontario, Transactions of the American Fisheries Society, 115: Pages 711 â 715. D. B. Bunnell, S. R. David and C. P. Madenjian, 2009a Decline in Bloater fecundity in southern Lake Michigan after decline of Diporeia, Journal of Great Lakes Research, 35: Pages 45 â 49. D. B. Bunnell, C. P. Madenjian, J. D. Holuszko, J. V. Adams and J. R. P. French III., 2009b Expansion of Dreissena into offshore waters of Lake Michigan and potential impacts on fish populations, Journal of Great Lakes Research, 35: Pages 74 â 80. C. J. Byron and J. S. Link, 2010 Stability in the feeding ecology of four demersal fish predators in the US northeast shelf large marine ecosystem, Marine Ecology Progress Series, 406: Pages 239 â 250. L. Carreonâ Martinez, T. B. Johnson, S. A. Ludsin and D. D. Heath, 2011 Utilization of stomach content DNA to determine diet diversity in piscivorous fishes, Journal of Fish Biology, 78: Pages 1170 â 1182. M. A. Chotkowski and J. E. Marsden, 1999 Round Goby and Mottled Sculpin predation on Lake Trout eggs and fry: field predictions from laboratory experiments, Journal of Great Lakes Research, 25: Pages 26 â 35. V. Christensen, 1995 A model of trophic interactions in the North Sea in 1981, the year of the stomach, Dana, 11: Pages 1 â 28. V. Christensen and C. J. Walters, 2004 Ecopath with Ecosim: methods, capabilities and limitations, Ecological Modelling, 172: Pages 109 â 139. N. Daan, A. D. Rijnsdorp and G. R. van Overbeeke, 1985 Predation by North Sea herring Clupea harengus on eggs of plaice Pleuronectes platessa and cod Gadus morhua, Transactions of the American Fisheries Society, 114: Pages 499 â 506. B. M. Davis, J. F. Savino and L. M. Ogilvie, 2007 Diet niches of major forage fish in Lake Michigan, Advances in Limnology, 60: Pages 261 â 275. R. Dermott, 2001 Sudden disappearance of the amphipod Diporeia from eastern Lake Ontario, 1993â 1995, Journal of Great Lakes Research, 27: Pages 423 â 433. IndexNoFollow Natural Resources and Environment Science Article 2013 ftumdeepblue https://doi.org/10.1080/00028487.2012.756431 2023-07-31T20:41:10Z Ecological stability in the Laurentian Great Lakes has been altered by nonindigenous species, such as the Round Goby Neogobius melanostomus and dreissenid mussels, and by declines in native amphipods Diporeia spp. We evaluated whether these changes could influence diet overlap between three benthivorous fishes (Slimy Sculpin Cottus cognatus, Deepwater Sculpin Myoxocephalus thompsonii, and Round Goby) and whether predation on eggs of native species was occurring. We examined diets of fish collected at depths of 69â 128 m in Lake Michigan offshore of Frankfort and Muskegon, Michigan, and Two Rivers and Sturgeon Bay, Wisconsin, during Januaryâ May 2009 and 2010. Important prey (by dry weight proportion and by percent frequency of occurrence) for Slimy Sculpin were Mysis (0.34; 45%), Diporeia (0.16; 34%), and Limnocalanus macrurus (0.22; 68%); important prey for Deepwater Sculpin were Mysis (0.74; 92%) and Diporeia (0.16; 54%). Round Goby consumed mainly bivalves (i.e., dreissenids: 0.68; 95%) and Mysis (0.15; 37%). The two sculpin species consumed the eggs of Bloaters Coregonus hoyi (Slimy Sculpin: 0.04, 11%; Deepwater Sculpin: 0.02, 7%) and the eggs of Deepwater Sculpin (Slimy Sculpin: 0.03, 13%; Deepwater Sculpin: 0.05, 16%) during Februaryâ May at all sites. Round Goby also consumed eggs of these species but at lower levels (â ¤0.01; <1%). Diet overlap was identified between sculpin species at Frankfort and Sturgeon Bay, suggesting possible interspecific competition, but their diets did not overlap at Two Rivers; diet overlap was never observed between Round Goby and either sculpin species. Given that (1) diet overlap varied by site and (2) diet proportions varied spatially more than temporally, benthivores appear to be exhibiting localized responses to recent ecological changes. Overall, these results reveal that egg predation and interspecific competition could be important interactions to consider in future examinations of the population dynamics of these species or in ecosystem models that forecast how ... Article in Journal/Newspaper Cottus cognatus Slimy sculpin University of Michigan: Deep Blue Transactions of the American Fisheries Society 142 2 492 504 |