Sago Pondweed (Potamogeton pectinatus L.): A Literature Review

Table 6

Table 6. Chemical content of natural waters inhabited by sago pondweed.

Characteristic                        Unit of measure          Range or single observation
pH and alkalinity system                                           (reference^a)
 pH                                                              6.3-10.7 (1;2)
 Total alkalinity                     g/L CaCO₃                0.018-34.7 (3;4)
 HCO₃ alkalinity                      g/L CaCO₃                    0-20.2 (4)
 CO₃ alkalinity                       g/L CaCO₃                    0-25.4
 CO₂                                  mg/L                         0-9 (2)
 Total hardness                       g/L CaCO₃                    0-l4.0^b (4;5)
 Noncarbonate hardness                mg/L CaCO₃                  57-3,700 (6)
Nutrient system        
 NO₃-N                                mg/L                         0-22.7 (7;8)
 NO₂-N                                mg/L                         0-0.32 (9; 10)
 NH₃-N                                mg/L                      0.01-10.6 (11;12)
 Organic-N                            mg/L                           <8.74 (13)
 SRP                                  mg/L                         0-44 (14)
 SUP                                  ug/L                         1-10 (15)
 Total P                              mg/L                           <646 (15)
 K                                    mg/L                       0.8-270 (9;6)
Other ions and compounds                                           
 Al                                   mg/L                         0-48.0 (16;9)
 As                                   ug/L                         9-200 (6)
 B                                    mg/L                      0.57-2.9 (6)
 Ba                                   ug/L                       100-200 (6)
 Ca                                   mg/L                         0-565 (4)
 Cd                                   ug/L                         0-4.15 (6; 18)
 Cl                                   mg/L                         0-10,517 (14; 19)
 Co                                   ug/L                         0-2 (6)
 Cr                                   ug/L                         0-30 (6)
 Cu                                   ug/L                         0-180 (6; 17)
 Fe                                   mg/L                         0-1.0 (13)
 Fl                                   ug/L                           100 (6)
 Hg                                   ug/L                       0.1-0.5 (6)
 Li                                   mg/L                      0.46-1.8 (6)
 Mg                                   mg/L                         0-3,400 (4;5)
 Mn                                   ug/L                        10-150 (13)
 Mo                                   ug/L                         3-16 (6)
 Na                                   mg/L                       2.6-5,890 (9;20)
 Ni                                   ug/L                         3-170 (6;17)
 O₂                                   mg/L                       4.6-22.2 (21;22)
 Pb                                   ug/L                         3-10 (6)
 S                                    mg/L                       0.2-4.4 (5)
 Se                                   ug/L                           1 (6)
 SiO₂                                 mg/L                       0.08-69 (4)
 SO₄                                  mg/L                          0-10,000^b(14;6)
 Sr                                   ug/L                        410-970 (6)
 Va                                   ug/L                          4-14 (6)
 Zn                                   ug/L                          4-140 (6;17)
 Chlorophyll a                        ug/L                       0.01-11.98 (23;24)

^aReference: (1) Moyle 1945, (2) Hellquist 1975; (3) Spence et al. 1979a; (4) McCarraher 1977; (5) U.S. Army Corps of Engineers 1984, unpublished data West Stump Lake, North Dakota; (6) U.S. Geological Survey 1976 to 1979, unpublished data. West Stump (7)Olson 1979; 8) Holmes and Whitton 1977 (9) Harris and Silvey 1948; (10) Ho 1979, (11)Gibbs 1973; (12) Kulshreshtha and Gopal 1982, (13) Krapu and Duebbert 1974; (14) Pip 1979, (15) Howard-Williams 1981; (16) Deevey 1957,cited in Cole 1963; (17) Kollman and Wali 1976; (18) Adams et al. 1980; (19) Spence et al. 1979a; (20) Hill et al. 1975; (21) Chapman 1960a; (22) Billore and Vyas 1981; (23) Jupp and Spence 1977a; (24) Vermaak et al. 1981.
^b= low.

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