Tissue Analysis as a Measure of Nutrient Availability for the Growth of Angiosperm Aquatic Plants1

Gerloff, G. C.; Krombholz, P. H.

doi:10.4319/lo.1966.11.4.0529

Cited by 378 publications

(203 citation statements)

References 3 publications

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“…Phosphorus concentrations remained above critical concentrations (1.3 mg/g dry plant weight, value suggested by Gerloff & Krombholz 1966), during the growing season, indicating by that this nutrient did not limit macrophyte growth in the most oligotrophic site. The phosphorus storage in plants depended on the trophic level of water and sediment.…”

Section: Space and Time Phosphorus Content Fluctuation In Aquatic Macmentioning

confidence: 99%

Linking phosphorus pools of water, sediment and macrophytes in running waters

Thiébaut¹,

Müller²

2003

Ann. Limnol. - Int. J. Lim.

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The aim of our paper was to study the space and time variations of phosphorus contents in the sediment, water and tissue of aquatic plants. Tissue Total Phosphorus of six aquatic plants (Callitriche platycarpa, C. hamulata, C. obtusangula, Elodea nuttallii, E. canadensis and Ranunculus peltatus) was analysed alongside the sediment Total Phosphorus (TP) and Soluble Reactive Phosphorus concentrations (SRP) in water, at the same site. Twelve sites were selected, and, samples were collected to test the seasonal and the annual patterns of phosphorus variation in 3 compartments. Streams ranged from oligotrophic to eutrophic waters. The sediments varied from mesotrophic to eutrophic states. A highly significant site effect was shown for water and for sediment. Water SRP varied with time (season, year), whereas no significant time effect was established for the sediment TP. Tissue TP varied according to year and season in Callitriche platycarpa, C. hamulata and E. nuttallii. The tissue phosphorus storage depended on the trophic level of sediment and water and varied according to species. The rank order of tissue TP content was C. obtusangula > R. peltatus ≥ E. nuttallii ≥ E. canadensis > C. platycarpa > C. hamulata. Removal of aquatic plants biomass with its accumulated phosphorus could be an alternative technique to other eutrophication control strategies. Further work is needed to improve our knowledge to estimate the ecological risk of harvesting on biodiversity and on ecosystem function.

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Section: Space and Time Phosphorus Content Fluctuation In Aquatic Macmentioning

confidence: 99%

Linking phosphorus pools of water, sediment and macrophytes in running waters

Thiébaut¹,

Müller²

2003

Ann. Limnol. - Int. J. Lim.

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“…3; ANOVA, P < 0.001). The P concentrations of macrophytes, particularly macroalgae, were often well below the critical level for maximum growth (0.13% dry wt for angiosperms, Gerloff and Krombholz 1966), suggesting that macrophyte growth may often be P limited in nature. The P content of phytoplankton differed among algal groups, green algae having the highest contents and blue-greens the lowest (ANO-VA, P < 0.001).…”

mentioning

confidence: 99%

“…Gerloff and Krombholz 1966), there is a wealth of data on the elemental composition of aquatic plants. However, attempts to compare the nutrient concentration of different aquatic plant groups have been few (e.g.…”

mentioning

confidence: 99%

Nutrient concentration of aquatic plants: Patterns across species

1992

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An extensive compilation of data for 96 phytoplankton species, 46 macroalgal species, 27 seagrass species, 11 species of freshwater angiosperms, and several mixed phytoplankton and macroalgal communities revealed a tendency toward higher concentrations of N and P in phytoplankton compared to those of macrophytes. The depletion of P, and to a lesser extent N, in macrophytes, particularly macroalgae, appears to reflect a greater degree of P and N limitation of growth of natural macrophyte populations, rather than an intrinsic difference in their chemical composition relative to that of phytoplankton. Close associations between nutrients, particularly a strong linear relationship between concentrations of N and P, reflect the similar biochemical basis of the different aquatic plant groups and appear to represent a fundamental characteristic of the plant kingdom. The results obtained indicate, therefore, that aquatic plants form a continuum across a unique pattern of change in nutrient concentrations, despite considerable differences in their architectural, evolutionary, and life histories, and the growth conditions encountered in their habitats.

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“…For both species, the N:P ratio was above 16, suggesting P limitation if this threshold can be used for Characeae. However, if considering actual concentrations for both N and P, both species were always above limiting levels of 13 and 1.3 mg g dryweight -1 (Gerloff & Krombholz, 1966) for N and P respectively, indicating that these plants were not limited by these nutrients. Measurements of water nutrients did not show evidence of increasing P limitation as well, but indicated a strong reduction of nitrate by C. globularis relative to C. virgata and the cylinders with no plants, whereas there were no differences in phosphate.…”

Section: Discussionmentioning

confidence: 99%

Iron addition as a shallow lake restoration measure: impacts on charophyte growth

et al. 2012

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Eutrophication has caused a decline of charophyte species in many shallow lakes in Europe. Even though external inputs of phosphorus are declining, internal loading of P from the sediment seems to delay the recovery of these systems. Iron is a useful chemical binding agent to combat internal phosphorus loading. However, the effects of iron addition on charophytes are not yet known. In this study we experimentally tested the potential toxicity of iron(III)chloride (FeCl 3 ) on two different charophytes, Chara virgata Kützing and Chara globularis Thuiller added at the concentration of 20 g Fe m -2 and 40 g Fe m -2 to the surface water. C. virgata growth was not significantly affected, whereas C. globularis growth significantly decreased with increasing iron concentrations. Nonetheless, biomass of both species increased in all treatments relative to starting conditions. The decrease of C. globularis biomass with high iron additions may have been caused by a drop in pH and alkalinity in combination with iron induced light limitation. Iron addition over a longer time scale, however, will not cause this rapid drop in pH. Therefore, we conclude that adding iron(III)chloride in these amounts to the surface water of a lake can potentially be a useful restoration method.

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Tissue Analysis as a Measure of Nutrient Availability for the Growth of Angiosperm Aquatic Plants1

Cited by 378 publications

References 3 publications

Linking phosphorus pools of water, sediment and macrophytes in running waters

Linking phosphorus pools of water, sediment and macrophytes in running waters

Nutrient concentration of aquatic plants: Patterns across species

Iron addition as a shallow lake restoration measure: impacts on charophyte growth

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