Site- and species-specific contribution of charophytes to calcium and phosphorus cycling in lakes

Kufel, Lech; Strzałek, Małgorzata; Biardzka, Elżbieta

doi:10.1007/s10750-015-2498-4

Cited by 32 publications

(35 citation statements)

References 25 publications

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“…The unbalanced biogeochemical cycle of phosphorus in water is a critical reason for eutrophication (Conley et al 2009;Zaaboub et al 2014), while phosphorus migration is closely related to its biological/abiological reactions, i.e., absorption/transfer, sorption/desorption, precipitation/dissolution, oxidation/reduction, and convection/diffusion (Withers and Jarvie 2008;Salerno et al 2014;Baken et al 2015). In general, submerged macrophytes can remove many nutrients from fresh water (Srivastava et al 2008;Dierberg et al 2002) and CaCO 3 -P coprecipitation is reported to play an important role in dephosphorization by submerged macrophytes (Kufel et al 2016). However, little is known about this mechanism.…”

Section: Introductionmentioning

confidence: 99%

Occurrence and characterization of CaCO3-P coprecipitation on the leaf surface of Potamogeton crispus in water

Liu

Guo

Yuan

et al. 2016

Environ Sci Pollut Res

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In this paper, the characterization of CaCO 3 -P coprecipitation on the leaf surface of Potamogeton crispus at various temperatures in pot experiments was investigated. White precipitates occurred on the leaf surfaces during the P. crispus growth period, and the chemical analysis demonstrates that the white precipitates contain Ca and P. The primary constituent of the white precipitates on the leaf of P. crispus was octacalcium phosphate (OCP) and hydroxyapatite. XRD characterization showed that the precipitates mostly consisted of crystals formed by calcium carbonate and hydroxyapatite, and the high calcium/phosphorus ratio indicated that the white coprecipitates were CaCO 3 -P. The scanning electron microscopy (SEM) and energy-dispersive X-ray spectrometry (EDX) results confirmed that the precipitates on the surface of P. crispus leaves were carbonate-containing hydroxylapatite. In addition, no significant differences was observed in the structure of CaCO 3 -P coprecipitation between room temperature and consistent temperature treatments, which means that a little change in the temperature cannot change the process of Ca-P coprecipitation. Finally, coprecipitation of CaCO 3 -P on the leaf surface of P. crispus was proposed based on the morphology and structure analysis of CaCO 3 -P coprecipitation.

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Section: Introductionmentioning

confidence: 99%

Occurrence and characterization of CaCO3-P coprecipitation on the leaf surface of Potamogeton crispus in water

Liu

Guo

Yuan

et al. 2016

Environ Sci Pollut Res

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“…Kufel et al. () observed the highest TP content for Chara globularis and C. intermedia , while encrustation was the lowest in both species. The results are consistent with the negative correlation of precipitated CaCO 3 and TP content of charophytes investigated in this study.…”

Section: Discussionmentioning

confidence: 93%

“…Investigations of in situ encrustation were often done for corticated species (for review see Kufel et al. ). Furthermore, with encrustation being a process related to growth in general, it should exhibit a pronounced seasonality as demonstrated, for instance, by Fernández‐Aláez et al.…”

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confidence: 99%

The seasonal effects on the encrustation of charophytes in two hard‐water lakes

Herbst

Tümpling

Schubert

2018

Journal of Phycology

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Encrustation and element content of six charophyte species from two hard-water lakes were investigated monthly for a period of 1 year. Seasonal patterns were analyzed for the interaction of water chemistry. Encrustation followed a seasonal pattern for Chara contraria, Chara subspinosa, and Nitellopsis obtusa in Lake Krüselin and for Chara globularis and Chara tomentosa in Lake Lützlow. However, no seasonality in the precipitated CaCO was observed for C. subspinosa in Lake Lützlow and for C. tomentosa in Lake Krüselin, indicating a lake-specific dependency. Species-specific encrustation was found. Chara contraria and N. obtusa encrusted the most in June and August, whereas C. subspinosa and Nitella flexilis/opaca exhibited lowest encrustation in March and April. The precipitated CaCO of charophytes correlated negatively to the concentration of total inorganic carbon in both lakes. Element content of plant dry weight was species-specific for Ca and K, and lake-specific for Mg. No specific pattern was found for the TP and Fe contents. The results showed seasonal, species, and lake-specific influences on the encrustation of charophytes.

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“…Previous studies into phosphorus accumulation by charophytes (Kufel et al, 2013;Kufel et al, 2016) have not yet investigated the effects of accumulation on the amount of diffusion from the sediment. The present study is the first to quantitatively demonstrate that, in places where the lake bottom is covered by charophytes, the amount of accumulation is equivalent to the amount of phosphorus diffused from the sediment.…”

Section: Discussionmentioning

confidence: 99%

The Effect of Charophyte Communities on Phosphorus Flow in Lake Shinji, Japan

Komuro

Kamiya

Yamamuro

et al. 2017

AST

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Charophytes are a group of aquatic algae similar to vascular plants; they play an important role in the nutrient cycling of lakes. Specifically, under eutrophication, charophytes have a greater capacity for phosphorus accumulation than vascular plants. During their development, charophytes accumulate calcium within their structures, along with dissolved phosphorus from the water column. The calcified structures are deposited onto the lakebed after the death of the plant, with phosphorus co-precipitating with calcium, limiting its return to the water. Lake Shinji is one of many lakes in Japan where the charophyte population is in decline or Aquatic Science and Technology ISSN 2168-9148 2017, Vol. 5, No. 1 14 extinct. Using aerial photographs acquired 70 years ago, we estimate the extent of the historical charophyte community in Lake Shinji, and quantitatively evaluate and examine the extent to which charophytes accumulated phosphorus in the lake sediment. The amount of phosphorus accumulated by the charophyte community in Lake Shinji is estimated to be 0.5625.5 t P y -1 . Charophytes are not found in Lake Shinji today, and although various species of vascular plants have recolonised the lake, no significant improvement in water transparency has been observed. This study concludes that charophytes are likely to be a more effective measure in combating eutrophication than vascular plants.

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Site- and species-specific contribution of charophytes to calcium and phosphorus cycling in lakes

Cited by 32 publications

References 25 publications

Occurrence and characterization of CaCO3-P coprecipitation on the leaf surface of Potamogeton crispus in water

Occurrence and characterization of CaCO3-P coprecipitation on the leaf surface of Potamogeton crispus in water

The seasonal effects on the encrustation of charophytes in two hard‐water lakes

The Effect of Charophyte Communities on Phosphorus Flow in Lake Shinji, Japan

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