Abstract
In fall 1997, the toxic cyanobacterium Microcystis aeruginosa was documented in Lake Sammamish (western Washington, U.S.A.) for the first time. Cyanobacterial activity and environmental conditions that may promote toxic cyanobacteria were investigated during summer and fall 1999. Development of toxic Microcystis was hypothesized to be due to runoff of nutrients from the watershed (external loading hypothesis) or from vertical migration of dormant cyanobacteria from the nutrient-rich sediments into the water column (cyanobacterial migration hypothesis). Microcystins were detected using an enzyme-linked immunosorbent assay during late August and early September 1999 despite low cyanobacterial abundance. Microcystin concentrations ranged between 0.19–3.8 μg l−1 throughout the lake and at all depths with the exception of the boat launch where concentrations reached 43 μg l−1. Comparison of the conditions associated with the toxic episodes in 1997 and 1999 indicate that Microcystis is associated with a stable water column, increased surface total phosphorus concentrations (> 10 μg l−1), surface temperatures greater than 22 °C, high total nitrogen to phosphorus ratios (> 30), and increased water column transparency (up to ∼5.5 m). Migration of the cyanobacteria, Microcystis and Anabaena, occurred in both the deep and shallow portions of the lake. Microcystis dominated (89–99%) the migrating cyanobacteria with greater migration from the shallow station. External loading of nutrients due to the large rainfall preceding the 1997 toxic episode may have provided the nutrients needed to fuel that bloom. However, toxic Microcystis occurred in 1999 despite the lack of rain and subsequent external runoff. The migration of Microcystis from the nutrient-rich sediments may have been the inoculum for the toxic population detected in 1999.
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References
American Public Health Association (APHA), American Water Works Association (AWWA), & Water Pollution Control Federation (WPCF), 1992. Standard Methods for the Examination of Water and Wastewater, 18th ed. APHA, AWWA, and WPCF, Washington, D.C.
Barbiero, R. P. & E. B. Welch, 1992. Contribution of benthic blue-green algal recruitment to lake populations and phosphorus translocation. Freshwat. Biol. 27: 249-260.
Carmichael, W.W., 1994. The toxins of cyanobacteria. Sci. am. 270: 78-86.
Carmichael, W. W. & P. R. Gorham, 1981. The mosaic nature of toxic blooms of cyanobacteria. In Carmichael, W. W. (ed.), The Water Environment: Algal Toxins and Health. Plenum Press, New York (NY): 161-172.
Chorus, I. (ed.), 2001. Cyanotoxins. Springer-Verlag, Berlin, Germany: 357 pp.
Chorus, I. & J. Bartram (eds), 1999. Toxic Cyanobacteria in Drinking Water: A Guide to their Public Health Consequences, Monitoring and Management. E & FN Spon, U.K.: 416 pp.
Chorus, I., I. R. Falconer, H. J. Salas & J. Bartram, 2000. Health risks caused by freshwater cyanobacteria in recreational waters. J. Toxicol. Environ. Health. B. Crit. Rev. 4: 323-347.
Chu, F. S., X. Huang & R. D. Wei, 1990. Enzyme-linked immunosorbent assay for microcystins in blue-green algal blooms. J. Assoc. Off. Anal. Chem. 73: 451-456.
Fastner, J., U. Neumann, B. Wirsing, J. Weckesser, C. Wiedner, B. Nixdorf & I. Chorus, 1999. Microcystins (hepatotoxic helptapeptides in German fresh water bodies. Environ. Toxicol. 14: 13-22.
Hansson, L.-A., 1995. Diurnal recruitment patterns in algae: effects of light cycles and stratified conditions. J. Phycol. 31: 540-546.
Hansson, L.-A., L. G. Rudstam, T. B. Johnson, P. Soranno & Y. Allen, 1994. Patterns in algal recruitment from sediment to water in a dimictic, eutrophic lake. Can. J. Fish. aquat. Sci. 51: 2825-2833.
Hyenstrand, P., P. Blomqvist & A. Pettersson, 1998. Factors determining cyanobacterial success in aquatic systems - a literature review. Arch. Hydrobiol. Spec. Issues Advanc. Limnol. 51: 41-62.
Jacoby, J. M., D. C. Collier, E. B. Welch, F. J. Hardy & M. Crayton, 2000. Environmental factors associated with a toxic bloom of Microcystis aeruginosa. Can. J. Fish. aquat. Sci. 57: 231-240.
Jacoby, J. M., H. L. Gibbons, R. Hanowell & D. D. Bouchard, 1994. Wintertime blue-green algal toxicity in a mesotrophic lake. Freshwat. Ecol. 9: 241-251.
Kenworthy, B. R., 2000. Factors associated with cyanobacterial toxin production in Lake Sammamish, WA. M. S. Thesis, University of Washington, Department of Civil and Environmental Engineering, Seattle, Washington.
Kotak, B. G., A. K.-Y. Lam, E. E. Prepas, S. L. Kenefick & S. E. Hrudey, 1995. Variability of the hepatotoxin microcystin-LR in hypereutrophic drinking water lakes. J. Phycol. 31: 248-263.
Kotak, B. G., R. W. Zurawell, E. E. Prepas & C. F. B. Holmes, 1996. Microcystin-LR concentration in aquatic food web compartments from lakes of varying trophic status. Can. J. Fish. aquat. Sci. 53: 1974-1985.
Kromkamp, J. C. & L. R. Mur, 1984. Buoyant density changes in the cyanobacterium Microcystis aeruginosa due to changes in the cellular carbohydrate content. FEMS Microbiol. Lett. 25: 105-109.
Lindenschmidt, K. E. & I. Chorus, 1997. The effect of aeration on stratification and phytoplankton populations in Lake Tengel, Berlin. Arch. Hydrobiol 3: 317-346.
Olsen, F. C. W., 1950. Quantitative estimation of filamentous algae. Trans. am. Microsc. Soc. 69: 272-279.
Paerl, H. W., 1988. Nuisance phytoplankton blooms in coastal, estuarine, and inland waters. Limnol. Oceanogr. 33: 823-847.
Perakis, S. S., E. B. Welch & J. M. Jacoby, 1996. Sedimentto-water blue-green algal recruitment in response to alum and environmental factors. Hydrobiologia 318: 165-177.
Perkins, W. W., E. B. Welch, J. Frodge & T. Hubbard, 1997. A zero-degree of freedom total phosphorus model; 2. application to Lake Sammamish, Washington. Lake & Reserv. Manage. 13: 131-141.
Singh, H. N. & K. M. Sunita, 1974. A biochemical study of spore germination in the blue-green alga Anabaena doliolum. J. exp. Bot. 25: 837-845.
Sonnichsen, J. D., J. M. Jacoby & E. B. Welch, 1997. Response of cyanobacterial migration to alum treatment in Green Lake. Arch. Hydrobiol. 140: 373-392.
Thomas, R. H. & A. E. Walsby, 1986. The effect of temperature on recovery of buoyancy by Microcystis. J. gen. Microbiol. 132: 1665-1672.
Valderrama, J. C., 1981. The simultaneous analysis of total nitrogen and total phosphorus in natural waters. Mar. Chem. 10: 109-122.
Visser, P. M., B. W. Ibelings, B. Van der Veer, J. Koedood & L. R. Mur, 1996. Artificial mixing prevents nuisance blooms of the cyanobacterium Microcystis in Lake Nieuwe Meer, The Netherlands. Freshwat. Biol. 36: 435-450.
Visser, P. M., J. Passarge & L. R. Mur, 1997. Modeling vertical migration of the cyanobacterium Microcystis. Hydrobiologia 349: 99-109.
Watanabe, M. F., H. D. Park & M. Watanabe, 1994. Compositions of Microcystis species and heptapeptide toxins. Verh. int. Ver. Limnol. 25: 2226-2229.
Welch, E. B., 1992. Ecological Effects of Wastewater. Chapman & Hall, London: 425 pp.
Welch, E. B., D. E. Spyridakis, J. I. Shuster & R. R. Horner, 1986. Declining lake sediment phosphorus release and oxygen deficit following wastewater diversion. J. Wat. Pollut. Contr. Fed. 58: 92-96.
World Health Organization (WHO), 1998. Guidelines for Drinking-Water Quality. 2nd ed. Addendum to Vol 2, Health Criteria and other Supporting Information. WHO, Geneva.
Yu, S.-H., 1989. Drinking water and primary liver cancer. In Tang, Z. Y., M. C. Wu & S. S. Xia (eds), Primary Liver Cancer. China Academic Publishers/Springer, New York (NY): 30-37.
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Johnston, B.R., Jacoby, J.M. Cyanobacterial toxicity and migration in a mesotrophic lake in western Washington, USA. Hydrobiologia 495, 79–91 (2003). https://doi.org/10.1023/A:1025496922050
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DOI: https://doi.org/10.1023/A:1025496922050