Adams, M.S., J. Titus & M. D. McCracken, 1974. Depth distribution of photosynthetic activity in a Myriophyllum spicatum community in Lake Wingra. Limnol. Oceanogr. 19: 377–389.
Adams, M. S., P. Guilizzoni & S. Adams, 1978. Relationship of dissolved inorganic carbon to macrophyte photosynthesis in some Italian lakes. Limnol. Oceanogr. 23: 912–919.
Aiken, S. G., P. Newroth & I. Wile, 1979. The biology of Canadian weeds (34). Myriophyllum spicatum L. Can. J. Pl. Sci. 59: 201–215.
Allen, E. D. & D. H. N. Spence, 1981. The differential ability of aquatic plants to utilize the inorganic carbon supply in fresh water. New Phytol. 87: 269–284.
Allenby, K. G., 1981. Some analyses of aquatic plants and their waters. Hydrobiologia 87: 177–190.
Amundsen, C. C. & A. L. Brenkert, 1978. Characterization of the growth of Myriophyllum spicatum and its influence in the aquatic ecosystem of the Tennessee Valley. Univ. Tenn. Wat. Resour. Res. Cent. Res. Rep. 67, Knoxville, 242 pp.
Andrews, J. H., 1980. Plant pathogens as agents for biological and integrated control of aquatic plants. Univ. Wisc. Wat. Res. Cent. tech. Completion Rep. 80–01, Madison, 36 pp.
Andrews, J. H. & E. P. Hecht, 1981. Evidence for pathogenicity of Fusarium sporotrichioides to eurasian watermilfoil, Myriophyllum spicatum. Can. J. Bot. 59: 1069–1077.
Andrews, J. H., E. P. Hecht & S. Bashirian, 1982. Association between the fungus Acremonium curvulum and eurasian watermilfoil, Myriophyllum spicatum. Can. J. Bot. 60: 1216–1221.
Angerilli, N. & B. Beirne, 1980. Influences of aquatic plant on colonization of artificial ponds by mosquitoes and their insect predators. Can. Ent. 112: 793–796.
Barko, J. W., 1983. The growth of Myriophyllum spicatum L. in relation to selected characteristics of sediment and solution. Aquat. Bot. 15: 91–103.
Barko, J. W. & R. M. Smart, 1980. Mobilization of sediment phosphorus by submergent freshwater macrophytes. Freshwat. Biol. 10: 229–239.
Barko, J. W. & R. M. Smart, 1981. Sediment-based nutrition of submersed macrophytes. Aquat. Bot. 10: 339–352.
Bayley, S. E., 1970. Ecology and disease of Myriophyllum spicatum L. Ph.D. Thesis, John Hopkins Univ., Baltimore, 192 pp.
Bayley, S., H. Rabin & C. Southwick, 1968. Recent decline in the distribution and abundance of Eurasian milfoil in Chesapeake Bay. Chesapeake Sci. 9: 173–181.
Bayley, S., V. D. Stotts, P. F. Springer & J. Steenis, 1978. Changes in submerged aquatic macrophyte populations at the head of Chesapeake Bay 1958–1975. Estuaries 1: 73–84.
Bean, G. A., M. Fusco & W. Klarman, 1973. Studies on the ‘Lake Venice disease’ of Eurasian milfoil in the Chesapeake Bay. Chesapeake Sci. 14: 279–280.
Best, M. D. & K. E. Mantai, 1978. Growth of Myriophyllum spicatum: sediment or lake water as a source of nitrogen and phosphorus. Ecology 59: 1075–1080.
Bilby, R., 1977. Effects of a spate on the macrophyte vegetation of a stream pool. Hydrobiologia 56: 109–112.
Black, M. A., S. C. Maberly & D. H. N. Spence, 1981. Resistances to carbon fixation in four submerged freshwater macrophytes. New Phytol. 89: 557–568.
Bole, J. B. & J. R. Allan, 1978. Uptake of phosphorus from sediment by aquatic plants, Myriophyllum spicatum and Hydrilla verticillata. Wat. Res. 12: 353–358.
Borawa, J., J. H. Kerby, M. T. Huisch & A. W. Mullis, 1979. Currituck Sound fish populations before and after infestation by eurasian watermilfoil. In Proc. ann. Conf. S.E. Ass. Fish Wildl. Ag.: 520–528.
Bristow, J. W. & M. Whitcombe, 1971. The role of roots in the nutrition of aquatic vascular plants. Am. J. Bot. 58: 8–13.
British Columbia Ministry of Environment, 1981. A summary of biological research on eurasian milfoil in British Columbia, 11 Inf. Bull., aquat. Pl. Mgmt Prog. Victoria, 18 pp.
Buscemi, P. A., 1958. Littoral oxygen depletion produced by a cover of Elodea canadensis. Oikos 9: 239–245.
Carignan, R. & J. Kalff, 1980. Phosphorus sources for aquatic weeds, water or sediments. Science 207: 987–989.
Carpenter, S. R., 1980. The decline of Myriophyllum spicatum in a eutrophic Wisconsin U.S.A. lake. Can. J. Bot. 58: 527–535.
Carpenter, S. R. & M. S. Adams, 1977. The macrophyte tissue nutrient pool of a hardwater eutrophic lake: implications for macrophyte harvesting. Aquat. Bot. 3: 239–255
Carpenter, S. R. & M. S. Adams, 1978. Macrophyte control by harvesting and herbicides: implications for phosphorus cycling in Lake Wingra, Wisconsin. J. aquat. Pl. Mgmt 16: 20–23.
Carpenter, S. R. & A. Gasith, 1978. Mechanical cutting of submersed macrophytes: immediate effects on littoral water chemistry and metabolism. Wat. Res. 12: 55–57.
Casterlin, M. E. & W. W. Reynolds, 1978. Habitat selection by juvenile bluegill sunfish, Lepomis macrochirus. Hydrobiologia 59: 75–80.
Cattaneo, A. & J. Kalf, 1979. Primary production of algae growing on natural and artificial aquatic plants: a study of interactions between epiphytes and their substrate. Limnol. Oceanogr. 24: 1031–1037.
Chapman, V. J., J. M. A. Brown, C. F. Hill & J. L. Carr, 1974. Biology of excessive weed growth in the hydro-electric lakes of the Waitako River, New Zealand. Hydrobiologia 44: 349–367.
Crowder, L. B. & W. E. Cooper, 1979. The effects of macrophyte removal on the feeding efficiency and growth of sunfishes: evidence from pond studies. In J. E. Breck, R. T. Prentki & O. L. Loucks (eds), Aquatic plants, lake management, and ecosystem consequences of lake harvesting. Inst. envir. Stud., Univ. Wisc., Madison: 251–268.
Crowder, L. B. & W. E. Cooper, 1982. Habitat structural complexity and the interaction between bluegills and their prey. Ecology 63: 1802–1813.
Crum, G. H. & R. W. Bachmann, 1973. Submersed aquatic macrophytes of the Iowa great lakes region. Iowa St. J. Res. 48: 147–173.
Curtis, J. T., 1959. The vegetation of Wisconsin. University of Wisconsin Press, Madison, 657 pp.
Dale, H. M., 1981. Hydrostatic pressure as a controlling factor in the depth distribution of Eurasian watermilfoil, Myriophyllum spicatum L. Hydrobiologia 79: 239–244.
Danell, K., 1977. Short-term plant succession following the colonization of a northern Swedish lake by the muskrat Ondatra zibethica. J. appl. Ecol. 14: 933–948.
DeGroote, D. & R. A. Kennedy, 1977. Photosynthesis in Elodea canadensis 4 carbon acid synthesis. Pl. Physiol. 59: 1133–1135.
DeMarte, J. A. & R. T. Hartman, 1974. Studies on absorption of 32P, 50Fe, and 45Ca by watermilfoil (Myriophyllum exalbescens). Ecology 55: 188–194.
Elser, H. J., 1969. Observations on the deline of watermilfoil and other aquatic plants, Maryland 1962–1967. Hyacinth Cont. J. 8: 52–60.
Eminson, D. & B. Moss, 1980. The composition and ecology of periphyton communities in freshwater, 1. The influence of host type and external environment on community composition. Br. phycol. J. 15: 429–446.
Fassett, N., 1969. A manual of aquatic plants. University of Wisconsin Press, Madison, 405 pp.
Fitzgerald, G., 1969. Some factors in the competition or antogonism among bacteria, algae and aquatic weeds. J. Phycol. 5: 351–359.
Forest, H. S., 1977. Study of submerged aquatic vascular plants in northern glacial lakes, New York state, U.S.A. Folia geobot. phytotax. 12: 329–341.
Forsberg, C., 1964. The vegetation changes in Lake Takern. Svensk Bot. Tidskr. 58: 44–54.
Gerloff, G. C., 1975. Nutritional ecology of nuisance aquatic plants. U.S. E.P.A. Res. Rep. EPA-660/3–75–027, Corvallis, 78 pp.
Gerloff, G. C. & P. H. Krombholz, 1966. Tissue analysis as a measure of nutrient availability for growth of angiosperm aquatic plants. Limnol. Oceanogr. 11: 529–537.
Grace, J. B. & R. G. Wetzel, 1978. The production biology of eurasian watermilfoil: a review. J. aquat. Pl. Mgmt 16: 1–10.
Grainger, J., 1947. Nutrition and flowering of water plants. J. Ecol. 35: 49–64.
Haag, R. W., 1979. The ecological significance of dormancy in some rooted aquatic plants. J. Ecol. 67: 727–738.
Harman, W. N., 1974. Phenology and physiognomy of the hydrophytic community in Otsego Lake, N.Y. Rhodora 76: 497–508.
Hasler, A. & E. Jones, 1949. Demonstration of the antagonistic action of large aquatic plants on algae and rotifers. Ecology 30: 359–364.
Hayslip, H. F. & F. W. Zettler, 1973. Past and current research on disease of Eurasian watermilfoil (Myriophyllum spicatum L.) Hyacinth Cont. J. 11: 38–40.
Hellquist, C. B., 1972. Range extension of vascular plants in New England. Rhodora 74: 131–141.
Hellquist, C. B., 1980. Correlation of alkalinity and the distribution of potamogeton in New England. Rhodora 82: 331–344.
Hough, R. A., 1979. Photosynthesis, respiration and organic carbon release in Elodea canadensis. Aquat. Bot. 7: 1–12.
Hough, R. A. & R. G. Wetzel, 1979. Photosynthetic pathways of some aquatic plants. Aquat. Bot. 3: 297–313
Hutchinson, G. E., 1975. A treatise on limnology, 3. John Wiley & Sons, N.Y., 660 pp.
Jeschke, L. & K. Muther, 1978. Plant sociology of the Rheinsberger Lakes. Limnologica 11: 307–353.
Jewell, W. J., 1970. Aquatic weed decay: dissolved oxygen utilization and nitrogen and phosphorus regeneration. J. Wat. Pollut. Cont. Fed. 43: 1457–1467.
Jones, R. C., A. Gurevitch & M. S. Adams, 1979. Significance of the epiphyte component of the littoral to biomass and phosphorus removal by harvesting. In J. E. Breck, R. T. Prentki & O.L. Loucks (eds), Aquatic plants, lake management, and ecosystem consequences of lake harvesting. Inst. envir. Stud. Univ. Wisc., Madison: 51–62.
Joyner, B. G. & T. E. Freeman, 1973. Pathogenicity of Rhizoctonia solani to aquatic plants. Phytopathology 63: 681–685.
Jupp, B. D. & D. H. W. Spence, 1977. Limitations on macrophytes in a eutrophic lake, Lock Leven, 1. Effects of Phytoplankton. J. Ecol. 65: 175–186.
Kadono, Y., 1980. Photosynthetic carbon sources in some Potamogeton species. Bot. Mag., Tokyo 93: 185–194.
Kangasniemi, B. J., 1983. Observations on herbivorous insects that feed on Myriophyllum spicatum in British Columbia. In U.S. E.P.A. (ed.), Lake restoration, protection and management. Proc. 2nd ann. Conf. N. am. Lake Mgmt Soc. EPA 440/5–83–001 Wash., D.C.: 214–218.
Keast, A., 1984. The introduced aquatic macrophyte, Myriophyllum spicatum, as habitat for fish and their invertebrate prey. Can. J. Zool. G2: 1289–1303.
Kimbel, J. C., 1982. Factors influencing potential intralake colonization by Myriophyllum spicatum L. Aquat. Bot. 14: 295–307.
Krecker, F. H., 1939. A comparative study of the animal populations of certain submerged aquatic plants. Ecology 20: 553–562.
Krull, J. N., 1970. Aquatic plant-macroinvertebrate associations and waterfowl. J. Wildl. Mgmt 34: 707–718.
Kuflikowski, T., 1974. The phytophilous fauna of the dam reservoir at Goczalkowice, Poland. Acta hydrobiol. 16: 189–207.
Kunii, H., 1982. Life cycle and growth of Potamogeton crispus L. in shallow pond Ojage-ike. Bot. Mag., Tokyo 95: 109–124.
Landers, D. H., 1979. Nutrient release from senescing milfoil and phytoplankton response. In J. E. Breck, R. T. Prentki & O. L. Loucks (eds), Aquatic plants, lake management and ecosystem consequences of lake harvesting. Inst. envir. Stud. Univ. Wisc., Madison: 127–134.
Lind, C. T. & G. Cottam, 1969. The submerged aquatics of University Bay: A study in eutrophication. Am. Midl. Nat. 81: 353–369.
Lloyd, N. D. H., D. T. Canvin & J. M. Bristow, 1977. Photosynthesis and photorespiration in submerged aquatic vascular plants. Can. J. Bot. 55: 3001–3005.
Loczy, S., R. Carignan & D. Planas, 1983. The role of roots in carbon uptake by the submersed macrophytes Myriophyllum spicatum, Vallisneria americana, and Heteranthera dubia. Hydrobiologia 98: 3–7.
Lundegardh-Ericson, C., 1972. Changes during four years in the aquatic macrovegetation in a flad in northern Stockholm Archipelago. Svensk Bot. Tidskr. 66: 207–225.
Lunney, C. A., G. J. Davis & M. M. Jones, 1975. Unusual structures associated with peripheral reticulum in chloroplasts of Myriophyllum spicatum L. J. Ultrastruct. Res. 50: 293–296.
Maberly, S. C. & D. N. H. Spence, 1983. Photosynthetic inorganic carbon use by freshwater plants. J. Ecol. 71: 705–724.
Madsen, J. D., 1982. The aquatic macrophyte communities of two trout streams in Wisconsin. M.Sci. Thesis, Univ. Wisc., Madison, 108 pp.
McGaha, Y. J., 1952. The limnological relations of insects to certain aquatic flowering plants. Trans. am. microscop. Soc. 71: 355–381.
Menzie, C. A., 1980. The chironomid insecta diptera and other fauna of the Myriophyllum spicatum plant bed in the lower Hudson River, New York, U.S.A. Estuaries 3: 38–54.
Misra, R. D., 1938. The distribution of aquatic plants in the English lakes. J. Ecol. 26: 411–452.
Moyle, J. B., 1945. Some chemical factors influencing the distribution of aquatic plants in Minnesota. Am. Midl. Nat. 34: 402–421.
Mulligan, H. F., A. Baranowski & R. Johnson, 1976. Nitrogen and phosphorus fertilization of aquatic vascular plants and algae in replicated ponds, 1 Initial response to fertilization. Hydrobiologia 48: 109–116.
Nichols, D. S. & D. R. Keeney, 1973. Nitrogen and phosphorus release from decaying water milfoil. Hydrobiologia 45: 509–525.
Nichols, D. S. & D. R. Keeney, 1976a. Nitrogen nutrition of Myriophyllum spicatum: Variation of plant tissue nitrogen concentration with season and site in Lake Wingra. Freshwat. Biol. 6: 137–144.
Nichols, D. S. & D. R. Keeney, 1976b. Nitrogen nutrition of Myriophyllum spicatum: Uptake and translocation of 15N by shoots and roots. Freshwat. Biol. 6: 145–154.
Nichols, S. A., 1971. The distribution and control of macrophyte biomass in Lake Wingra. Technical Report OWRR. B-019-Wis. Univ. Wisc. Wat. Resour. Cent, Madison, 132 pp.
Nichols, S. A., 1973. The effects of harvesting aquatic macrophytes on algae. Trans. Wis. Acad. Sci. 61: 165–172.
Nichols, S. A., 1982. Sampling characteristics of macrophyte biomass. Wat. Res. Bull. 18: 521–523.
Nichols, S. A., 1984. Macrophyte community dynamics in a dredged Wisconsin Lake. Wat. Res. Bull. 20: 573–576.
Nichols, S. A. & S. Mori, 1971. The littoral macrophyte vegetation of Lake Wingra. Trans. Wis. Acad. Sci. 59: 107–119.
Nichols, S. A. & B. Shaw, 1983. Review of management tactics for integrated aquatic weed management of eurasian water-milfoil (Myriophyllum spicatum), curlyleaf pondweed (Potamogeton crispus) and elodea (Elodea canadensis). U.S. E.P.A. (ed.), Lake Restoration, protection and management. Proc. 2nd ann. Conf. N. am. Lake Mgmt, Soc. EPA 440/5–83–001, Wash., D.C.: 181–192.
Oglesby, R. T., A. Vogel, J. H. Peverly & R. Johnson, 1976. Changes in submerged plants at the south end of Cayuga Lake following tropical storm Agnes. Hydrobiologia 48: 251–255.
Olsen, S., 1950. Aquatic plants and hydrospheric factors. 1 Aquatic plants in SW Jutland, Denmark. Svensk Bot. Tidskr. 44: 1–32.
Patten, B. C., 1956. Notes on the biology of Myriophyllum spicatum L. in a New Jersey lake. Bull. Torrey bot. Club 83: 5–18.
Pearsall, W. H., 1920. The aquatic vegetation of English lakes. J. Ecol. 8: 163–199.
Penfound, W. H., T. F. Hall & A. D. Hess, 1945. The spring phenology of plants in and around reservoirs in north Alabama with particular reference to malaria control. Ecology 26: 332–352.
Peverly, J. H. & J. Brittain, 1978. The effect of milfoil (Myriophyllum spicatum L.) on phosphorus movement between sediment and water. J. Gt Lakes Res. 4: 62–68.
Peverly, J. H. & R. L. Johnson, 1979. Nutrient chemistry in herbicide treated ponds of differing fertility. J. envir. Qual. 8: 294–300.
Phillips, C. L., D. Eminson & B. Moss, 1978. A mechanism to account for macrophyte decline in progressively eutrophicated freshwaters. Aquat. Bot. 4: 103–126.
Reed, C. F., 1977. History and distribution of Eurasian watermilfoil in United States and Canada. Phytologia 36: 416–436.
Rogers, K. H. & C. M. Breen, 1980. Growth and reproduction of Potamogeton crispus in a South African Lake. J. Ecol. 68: 561–571.
St. John, H., 1965. Monograph of the genus Elodea (Hydrocharitaceae) 4. The species of eastern and central North America & summary. Rhodora 67: 1–35, 155–180.
Saitoh, M., K. Narita & S. Isikawa, 1970. Photosynthetic nature of some aquatic plants in relation to temperature. Bot. Mag., Tokyo 83: 10–12.
Salvucci, M. E. & G. Bowes, 1983. Two photosynthetic mechanisms mediating the low photorespiratory state in submersed aquatic angiosperms. Pl. Physiol. 73: 488–496.
Sastroutomo, S. S., 1980. Environmental control of turion formation in curly pondweed (Potamogeton crispus). Physiol. Pl. 49: 261–264.
Sastroutomo, S. S., 1981. Turion formation, dormancy, and germination in curly pondweed, Potamogeton crispus L. Aquat. Bot. 10: 161–173.
Sastroutomo, S. S., I. Ikusima, M. Numata & S. Iizumi, 1979. The importance of turions in the propagation of pondweed (Potamogeton crispus L.). Ecol. Rev. 19: 75–88.
Scales, P. & A. Bryan, 1979. Studies on aquatic macrophytes part 27. Transport of Myriophyllum spicatum fragments by boaters and assessment of the 1978 boat quarantine program. Br. Columbia Minist. Envir., Wat. Invest. Branch, Victoria, 36 pp.
Schmid, W. P., 1965, Distribution of aquatic vegetation as measured by line intercept with SCUBA. Ecology 46: 816–823.
Schmitt, M. R., 1977. The dependence of net photosynthesis on internal phosphorus levels in Myriophyllum spicatum L. M.Sci. Thesis, Univ. Wisc., Madison, 57 pp.
Schmitt, M. R. & M. S. Adams, 1981. Dependence of rates of apparent photosynthesis on tissue phosphorus concentrations in Myriophyllum spicatum L. Aquat. Bot. 11: 379–387.
Schults, D. W. & K. W. Maleug, 1971. Uptake of radiophosphorus by rooted aquatic plants. In Proc. 3rd Nat. Symp. Radioecol. Oak Ridge, Tenn.: 417–424.
Sculthorpe, C. D., 1967. The biology of aquatic vascular plants. Edward Arnold Ltd., Lond., 610 pp.
Seddon, B., 1972. Aquatic macrophytes as limnological indicators. Freshwat. Biol. 2: 107–130.
Sheldon, R. B. & C. W. Boylen, 1977. Maximum depth inhabited by aquatic vascular plants. Am. Midl. Nat. 97: 248–254.
Smith, F. A. & N. A. Walker, 1980. Photosynthesis by aquatic plants: effects of unstirred layers in relation to assimilation of CO2 and HCO3− and to carbon isotopic discrimination. New Phytol. 86: 245–259.
Sondergaard, M., 1979. Light and dark respiration and the effect of the lacunal system on refixation of carbon dioxide in submerged aquatic plants. Aquat. Bot. 6: 269–284.
Sondergaard, M. & K. Sand-Jensen, 1979. The delay in carbon-14 fixation rates by 3 submerged macrophytes, a source of error in the carbon-14 technique. Aquat. Bot. 6: 111–120.
Soszka, G. J., 1975a. Ecological relations between invertebrates and macrophytes in the lake littoral. Ekol. pol. 23: 393–415.
Soszka, G. J., 1975b. The invertebrates on submerged macrophytes in three Masurian lakes. Ekol. pol. 23: 371–391.
Spence, D. H. N., 1964. The macrophytic vegetation of freshwater lochs, swamps and associated fens. In J. H. Burnett (ed.), The Vegetation of Scotland, Oliver & Boyd, Edinburgh: 406–425.
Spence, D. H. N., 1967. Factors controlling the distribution of freshwater macrophytes with particular reference to the lochs of Scotland. J. Ecol. 55: 147–170.
Springer, P. F., G. F. Beavens & V. D. Stotts, 1961. Eurasian watermilfoil — a rapidly spreading pest plant in eastern waters. Presented at N.E. Wildl. Conf., Halifax, Nova Scotia, June 11–14, 1961.
Stanley, R. A., 1970. Studies on nutrition, photosynthesis and respiration in Myriophyllum spicatum L. Ph.D. Thesis, Duke Univ., Durham, N.C., 140 pp.
Stanley, R. A., 1976. Response of Eurasian watermilfoil to subfreezing temperature. J. aquat. Pl. Mgmt 14: 36–39.
Stanley, R. A. & A. W. Naylor, 1972. Photosynthesis in Eurasian watermilfoil. Pl. Physiol. 50: 149–151.
Stanley, R. A. & A. W. Naylor, 1973. Glycolate metabolism in Eurasian watermilfoil (Myriophyllum spicatum). Physiol. Pl. 29: 60–63.
Steenis, J. H. & V. D. Stotts, 1961. Progress report on control of Eurasian watermilfoil in Chesapeake Bay. Proc. N.E. Weed Cont. Conf. 15: 566–570.
Stuckey, R. L., 1979. Distribution history of Potamogeton crispus (curly pondweed) in North America. Bartonia 46: 22–42.
Stuckey, R. L., J. R. Wehrmeister & R. J. Bartolotta, 1978. Submersed aquatic vascular plants in ice-covered ponds of central Ohio. Rhodora 80: 575–580.
Tamisier, A., 1971. The diet of teal ducks Anas crecca in the Camargue Region, Alauda 39: 261–311.
Titus, J. E., 1977. The comparative physiological ecology of three submerged macrophytes. Ph.D. Thesis, Univ. Wisc., Madison, 195 pp.
Titus, J. E. & M. S. Adams, 1979. Coexistence and the comparative light relations of the submersed macrophytes Myriophyllum spicatum, and Vallisneria americana. Oecologia 40: 273–286.
Trudeau, P. N., 1982. Nuisance aquatic plants and aquatic plant management programs in the United States, 3. Northeastern and north central region. MITRE Corporation, McClean, Virg., 157 pp.
Van, T. K., W. R. Haller & G. Bowes, 1976. Photosynthesis of three submerged aquatic macrophytes. Pl. Physiol. 57: 761–768.
Waisel, Y. & Z. Shapira, 1971. Functions performed by roots of some submerged hydrophytes. Isr. J. Bot. 20: 69–77.
Wehrmeister, J. R., 1978. An ecological life history of the pond-weed Potamogeton crispus L. in North America. Ohio St. Univ., Cent. Lake Erie Area Res. Tech. Rep. 99: Columbus, 157 pp.
Welsh, R. P. H. & P. Denny, 1979. The translocation of phosphorus-32 in 2 submerged aquatic angiosperm species. New Phytol. 82: 645–656.
Wetzel, R. G., 1975. Limnology. W. B. Saunders & Co., Philad., 743 pp.
Wile, I., G. Hitchin & G. Beggs, 1979. Impact of mechanical harvesting on Chemung Lake. In J. E. Breck, R. T. Prentki & O. L. Loucks (eds), Aquatic plants, lake management, and ecosystem consequences of lake harvesting. Inst. envir. Stud., Univ. Wisc., Madison: 145–159.
Wilson, L. R., 1937. A quantitative and ecological study of the larger plants of Sweeney Lake, Oneida County, Wisconsin, Bull. Torrey Bot. Club 64: 199–208.
Wilson, L. R., 1941. The larger vegetation of Trout Lake, Vilas County, Wis. Trans. Wis. Acad. Sci. 33: 135–146.
Yeo, R. R., 1966. Yield of propagules of certain aquatic plants. Weeds 14: 110–113.
Zettler, F. W. & T. E. Freeman, 1972. Plant pathogens as biocontrols of aquatic weeds. Ann. Rev. Phytopath. 10: 455–470.