Effects of different submersed macrophytes on sediment biogeochemistry

Wigand, Cathleen; Stevenson, J. Court; Cornwell, Jeffrey C.

doi:10.1016/s0304-3770(96)01108-4

Cited by 129 publications

(80 citation statements)

References 35 publications

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“…A major difference in aquatic habitats compared with terrestrial systems is that the sediment is waterlogged, creating anaerobic environments. Most aquatic macrophytes manage to create small oxygenic boundary layers around their roots (Christensen et al, 1994;Flessa, 1994;Sorrell and Armstrong, 1994;Brix and Sorrell, 1996;Wigand et al, 1997;Jackson and Armstrong, 1999). Aerobic microzones around roots of aquatic angiosperms are small (approx.…”

Section: A Differences Between Terrestrial and Aquatic Habitatsmentioning

confidence: 99%

Allelopathy of Aquatic Autotrophs

Gross¹

2003

Critical Reviews in Plant Sciences

527

355

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Allelopathy in aquatic environments may provide a competitive advantage to angiosperms, algae, or cyanobacteria in their interaction with other primary producers. Allelopathy can influence the competition between different photoautotrophs for resources and change the succession of species, for exarnple, in phytoplankton cornmunities. Field evidence and laboratory studies indicate that allelopathy occurs in all aquatic habitats (marine and freshwater), and that ail prirnary producing organisms (cyanobacteria, micro-and macroalgae as well as angiospenns) are capable of producing and releasing allelopathically active compounds. Although allelopathy also includes positive (stimulating) interactions, the majority of studies describe the inhibitory activity of ailelopathicaily active compounds. Different mechanisms operate depending on whether allelopathy takes place in the Open water (pelagic zone) or is Substrate associated (benthic habitats). Allelopathical interactions are especiaily common in fully aquatic species, such as submersed macrophytes or benthic algae and cyanobacteria. The prevention of shading by epiphytic and planktonic primary producers and the competition for space may be the ultimate cause for allelopathical interactions. Aquatic ailelochemicals often target multiple physiological processes. The inhibition of photosynthesis of competing primary producers seems tobe a frequent mode of action. Multiple biotic and abiotic factors determine the strength of allelopathic interactions. Bacteria associated with the donor or target organism can metabolize excreted aiielochemicals. Frequently, the impact of surplus or limiting nutrients has been shown to affect the overail production of allelochemicals and their effect on target species. Similarities and differences of ailelopathic interactions in marine and freshwater habitats as well as between the different types of producing organisms are discussed.

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Section: A Differences Between Terrestrial and Aquatic Habitatsmentioning

confidence: 99%

Allelopathy of Aquatic Autotrophs

Gross¹

2003

Critical Reviews in Plant Sciences

527

355

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“…Submerged plants can stabilize sediments (Scheffer 1998;Horppila & Nurminen 2003;, remove suspended particles from the water by reducing wave turbulence (Vermaat et al 2000;Horppila & Nurminen 2003), provide a substrate for epiphytic algae that sequesters nutrients from the water (Blumenshine et al 1997;McCormick et al 2001;Toet et al 2003), reduce P fluxes into the water column from sediment (Wigand et al 1997;Horppila & Nurminen 2003;Qin et al 2007), and inhibit phytoplankton growth (Mulderij et al 2007). Thus, areas of dense submerged plants in shallow lakes typically have very clear water and low concentrations of nutrients as well as phytoplankton (Jeppesen et al 1998;Blindow et al 2002).…”

Section: Introductionmentioning

confidence: 99%

Responses of chlorophyll and MDA ofVallisneria natansto nitrogen and phosphorus availability and epiphytic algae

Song

Kong

Xue

et al. 2014

Journal of Freshwater Ecology

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It is common for submerged plants to become less abundant and disappear in eutrophic lakes in the world. To explore degradation mechanisms of submerged plants during the growing season, we determined chlorophyll and malondialdehyde (MDA) concentrations in Vallisneria natans (Lour.) Hara cultivated under four different nutrient concentrations (N/P, mg/L): T1 D 0.5/0.05, T2 D 2.5/0.25, T3 D 4.5/0.45, and T4 D 12.5/1.25) and under low and high density of epiphytic algae. With the increase in nutrients, the content of chlorophyll in the leaves of V. natans varied in the order T3 > T2 > T1 (T4) at low density (grazed) of epiphytic algae and varied in the order T3 > T2 > T1 > T4 in the high density (ungrazed) of epiphytic algae. With the increase in nutrients, the content of MDA in the leaves of V. natans varied in the order T4 >T1 (T2, T3) at the low density (grazed) of epiphytic algae and varied as T4 > T3 > T2 > T1 at the high density of epiphytic algae. At the same time, chlorophyll content of V. natans was significantly higher (p < 0.01 and the content of MDA was significantly lower (p < 0.01) in the grazed treatment than in the non-grazed treatment under the same nutrient concentrations. During the growing season, total nitrogen and total phosphorus concentrations were low (N < 4.5 mg N/L, P < 0.45 mg P/L) in Lake Taihu, a large shallow eutrophic lake in China; consequently water column nutrient loading benefited the growth of V. natans, but the high biomass of epiphytic algae and planktonic algae caused by the high nutrient loading of water column inhibited the growth of V. natans.

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“…Water plants have a great bearing on the phosphorus dynamics. Macrophyte species composition can alter sediment biogeochemistry resulting in varying porewater phosphate and solid-phase phosphorus and metal levels (Wigand et al 1997). However, plants take up substances which they require for growth from the water, and secrete other substances.…”

Section: Introductionmentioning

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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Effects of different submersed macrophytes on sediment biogeochemistry

Cited by 129 publications

References 35 publications

Allelopathy of Aquatic Autotrophs

Allelopathy of Aquatic Autotrophs

Responses of chlorophyll and MDA ofVallisneria natansto nitrogen and phosphorus availability and epiphytic algae

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

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