Eutrophication in three Canadian Areas of Concern: Phytoplankton and major nutrient interactions
Keywords:
algal blooms, cyanobacteria, diatoms, flagellates, nutrient enrichmentAbstract
The Bay of Quinte, Hamilton Harbour and Toronto Harbour are all coastal regions of Lake Ontario that have experienced eutrophication and all have been designated as ‘Areas of Concern’ under the terms of the Great Lakes Water Quality Agreement. An assessment of the phytoplankton communities in relation to nutrient (P,N,Si) regimes was undertaken during 2015 (Bay of Quinte) and 2016 (Hamilton Harbour and Toronto Harbour) in order to compare and contrast the dynamics of eutrophication in the three ecosystems. Bay of Quinte was found to be phosphorus and silica enriched, but nitrogen limited which resulted in a phytoplankton community dominated by both filamentous diatoms and diazotrophic (N–fixing) cyanobacteria. Hamiton Harbour was phosphorus and nitrogen enriched, but silica depleted with a community dominated by small and large phytoflagellates in addition to experiencing cyanobacteria blooms. Toronto Harbour, by contrast, showed only moderate phosphorus enrichment and no nitrogen limitation, but some silica depletion; phytoplankton was dominated by smaller flagellates and pennate diatoms. Our findings suggest that while phosphorus was a key factor causing cultural eutrophication, other nutrients including nitrogen and silica also had important roles in determining the biomass and composition of the algal standing crop. Future management activities need to consider how the interactions of phosphorus with other nutrients (nitrogen, silica) affect the dynamics of the phytoplankton community in order to promote the recovery of eutrophic ecosystems.
References
Bay of Quinte Remedial Action Plan
, 2018. http://www.bqrap.ca [accessed April 12, 2018].
Bowen, K.
, Currie, W.
, 2017. Elevated zooplankton production in a eutrophic Lake Ontario embayment: Hamilton Harbour 2002–2014. Aquat. Ecosyst. Health Mgmt. 20(3), 230–241.
Carlson, R.
, 1977. A trophic state index for lakes. Limnol. Oceanogr. 22(2), 361–369.
Conley, D.J.
, Schelske, C.L
, Stoermer, E.F.
, 1993. Modification of the biogeochemical cycle of silica with eutrophication. Mar. Ecol. Prog. Ser. 101, 179–192.
Crumpton, W.G.
, 1987. A simple and reliable method for making mounts of phytoplankton for light and fluorescence microscopy. Limnol. Oceanogr. 32(5), 1154–1159.
Dove, A.
, Chapra, S.
, 2015. Long-term trends of nutrients and trophic response variables for the Great Lakes. Limnol. Oceanogr. 60, 696–721.
Gardner, W.
, Newell, S.
, McCarthy, M.
, Hoffman, D.
, Lu, K.
, Lavrentryev, P.
, Hellweger, F.
, Wilhelm, S.
, Liu, Z.
, Bruesewitz, D.
, Paerl, H.
, 2017. Community Biological Ammonium Demand: a conceptual model for cyanobacteria blooms in eutrophic lakes. Environ. Sci. Technol. 51, 7785–7793.
George, T.K.
, Boyd, D.
, 2007. Limitations on the development of quantitative monitoring plans to track progress of Beneficial Use Impairment restoration at Great Lakes Areas of Concern. J. Great Lakes Res. 33, 686–692.
Glibert, P.M.
, Burford, M.A.
, 2017. Globally changing nutrient loads and harmful algal blooms: Recent advances, new paradigms, and continuing challenges. Oceanography 30(1), 58–69.
Haffner, G.D.
, Harris, G.P.
, Jarai, M.K.
, 1980. Physical variability and phytoplankton communities. III. Vertical structure in phytoplankton populations. Archiv. Hydrobiol. 89(3), 363–381.
Haffner, G.D.
, Poulton, D.J.
, Kohli, B
., 1982. Physical processes and eutrophication. Wat. Res. Bull. 18(3), 457–464.
Hamilton Harbour Remedial Action Plan
, 2012. Beneficial Uses: 2012 Fact Sheet.
Harris, G.P.
, Haffner, G.D.
, Piccinin, B.B.
, 1980. Physical variability and phytoplankton communities: II. Primary productivity by phytoplankton in a physically variable environment. Archiv. Hydrobiol. 88(4), 393–425.
Hartig, J.H.
and Zarull, M.A.
, 1992. Towards defining aquatic ecosystem health for the Great Lakes. J. Aquat. Ecosyst. Health 1, 97–107.
Hiriart-Baer, V.P.
, Boyd, D.
, Long, T.
, Charlton, M.N.
, Milne, J.E.
, 2016. Hamilton Harbour over the last 25 years: insights from a long-term comprehensive water quality monitoring program. Aquat. Ecosyst. Health Mgmt. 19(2),124–133.
International Joint Commission
, 1989. Revised Great Lakes Water Quality Agreement of 1978 between the United States and Canada, as amended by protocol, signed November 18, 1987.
Johnson, M.G.
, Owen, G.E.
, 1971. Nutrients and nutrient budgets in the Bay of Quinte, Lake Ontario. J. Water Pollut. Control Fed. 43, 836–853.
Komárek, J
, Zapomělová, E.
, Šmarda, J.
, Kopecký, J.
, Rejmánková, E.
, Woodhouse, B.
, Komárková, J.
, 2013. Polyphasic evaluation of Limnoraphis robusta, a water–bloom forming cyanobacterium from Lake Atitlán, Guatemala, with a description of Limnoraphis gen. nov. Fottea, Olomouc, 13(1), 39–52.
Krantzberg. G.
, 2004. Science must inform Great Lakes policy. J. Great Lakes. Res. 30, 573–574.
Leach, J.H.
, Dickie, L.M.
, Shuter, B.J.
, Borgmann, U.
, Lysack, W
. 1987. A review of methods for prediction of potential fish production. Can. J. Fish. Aquat. Sci. 44 (Suppl. 2), 471–485.
Lund, J.W.G.
, 1954. The seasonal cycle of the plankton diatom, Melosira italica (EHR.) Kütz. Subsp. Subarctica O. Müll. J. Ecol. 42(1), 151–179.
Monchamp, E-M.
, Pick, F.R.
, Beisner, B.
, Maranger, R.
, 2014. Nitrogen forms influence microcystin concentration and composition via changes in cyanobacterial community structure. PLoS ONE 9(1): e85573. doi:10.1371/journal.pone.0085573
Molot, L.
, Watson, S.
, Creed, I.
, Trick, C.
, McCabe, S.
, Vershoor, M.
, Sorichetti, R.
, Powe, C.
, Venkiteswaran, J.
, Schiff, S.
, 2014. A novel model for cyanobacteria bloom formation: the critical role of anoxia and ferrous iron. Freshwat. Biol. 59, 1323–1340.
Munawar, M.
, Fitzpatrick, M
., 2017. Microbial - Planktonic Foodweb Dynamics of a Eutrophic Area of Concern: Hamilton Harbour. Aquat. Ecosyst. Health Mgmt. 20(3), 214–229
Munawar, M.
, Munawar, I.F.
, 1982. Phycological studies in Lakes Ontario, Erie, Huron and Superior. Can. J. Bot. 60, 1837–1858.
Munawar, M.
, Fitzpatrick, M.
, Niblock, H.
, Kling, H.
, Rozon, R.
, Lorimer, J.
, 2017. Phytoplankton ecology of a culturally eutrophic embayment: Hamilton Harbour, Lake Ontario. Aquat. Ecosyst. Health Mgmt. 20(3), 201–213.
Munawar, M., Fitzpatrick, M., Niblock, H., Kling, H., Lorimer, J., Rozon, R. 2018a. Phytoplankton ecology in the Bay of Quinte: spatial distribution, dynamics and heterogeneity. Aquat. Ecosyst. Health Mgmt. 21(2): 213–226.
Munawar, M.
, Fitzpatrick, M.
, Niblock, H.
, Lorimer, J.
, 2018b. Autotrophic and Heterotrophic Indicators of Ecological Impairment in Toronto Harbour and Coastal Lake Ontario. Aquat. Ecosyst. Health Mgmt. 21(3): 293–305.
National Laboratory for Environmental Testing (NLET)
, 1997. Manual of Analytical Methods, Major Ions and Nutrients, Volume 1. Environment Canada, Burlington, Ontario.
Nicholls, K.H.
, Heintsch, L
, Carney, E.
, 2002. Univariate step-trend and Multivariate assessments of the apparent effects of P loading reductions and zebra mussels on the phytoplankton of the Bay of Quinte, Lake Ontario. J. Great Lakes Res. 28(1), 15–31.
Paerl, H.W.
, Gardner, W.
, Havens, K.
, Joyner, A.
, McCarthy, M.
, Newell, S.
, Qin, B.
, Scott, J.
, 2016. Mitigating cyanobacterial harmful algal blooms in aquatic ecosystems impacted by climate change and anthropogenic nutrients. Harmful Algae 54, 213–222.
Pick, F.R.
, 2016. Blooming algae: a Canadian perspective on the rise of toxic cyanobacteria. Can. J. Fish. Aquat. Sci. 73, 1149–1158.
Reavie, E.
, Cai, M.
, Twiss, M.
, Carrick, H.
, Davis, T.
, Johengen, T.
, Gossiaux, D.
, Smith, D.
, Palladino, D.
, Burtner, A.
, Sgro, G.
, 2016. Winter–spring diatom production in Lake Erie is an important driver of summer hypoxia. J. Great Lakes Res. 42, 608–618.
Redfield, A.C.
, 1958. The biological control of chemical factors in the environment. Am. Sci. 46(3), 205–221.
Reynolds, C.S.
, Huszar, V.
, Kruk, C.
, Naselli-Flores, L.
, Melo, S.
, 2002. Towards a functional classification of the freshwater phytoplankton. J. Plankt. Res. 24(5), 417–428.
Ridenour, C.
, 2017. Biogeochemical cycling of nutrient silicon in a human-impacted large lake nearshore environment (Hamilton Harbour Area of Concern, Lake Ontario, Canada). M. Sc. Thesis. University of Waterloo. Waterloo, Ontario, Canada.
Schelske, C.L.
, Stoermer, E.F.
, Fahnenstiel, G.L.
, Haibach, M.
, 1986. Phosphorus enrichment, silica utilization, and biogeochemical silica depletion in the Great Lakes. Can. J. Fish. Aquat. Sci. 43, 407–415.
Schindler, D.W.
, 1978. Factors regulating phytoplankton production and standing crop in the world’s freshwaters. Limnol. Oceanogr. 23(3), 478–486.
Strickland, J.D.H.
, Parsons, T.R.
, 1968. A practical handbook of seawater analysis. Bull. Fish. Res. Board Can. Ottawa, ON, Canada.
Toronto and Region Remedial Action Plan
, 2016. Within reach: 2015 Toronto and region Remedial Action Plan progress report. Toronto and Region Conservation Authority, Toronto, ON.
Utermöhl, H.
, 1958. Zur vervolkommnung der quantitativen phytoplankton-methodik. (The improvement of quantitative phytoplankton methodology. In German.) Mitt. Internat. Verein. Limnol. 9, 1–38.
Vallentyne, J.R.
, 1993. Biospheric foundations of the ecosystem approach to environmental management. J. Aquat. Ecosyst. Health 2(1), 9–14.
Vollenweider, R.A.
, 1968. Scientific fundamentals of the eutrophication of lakes and flowing waters, with particular reference to nitrogen and phosphorus as factors in eutrophication. Organization for Economic Co-operation and Development, Paris, France.
Vollenweider, R.A.
, Munawar, M.
, Stadelmann, P.
, 1974. A comparative review of phytoplankton and primary production in the Laurentian Great Lakes. J. Fish. Res. Board Can. 31, 739–762.
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