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Organic phosphate in UK rivers and its relevance to algal and bryophyte surveys

Published online by Cambridge University Press:  26 January 2011

Brian A. Whitton*
Affiliation:
School of Biological and Biomedical Sciences, University of Durham, Durham DH1 3LE, UK
Colin Neal
Affiliation:
Centre for Ecology and Hydrology, McLean Building, Crowmarsh Gifford, Wallingford OX10 8BB, UK
*
*Corresponding author: b.a.whitton@durham.ac.uk
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Abstract

Although the data on phosphate obtained in surveys are used to assess the distribution of river biota, the approach is flawed when the organisms use P fractions not included in routine analysis. This is especially important where aquatic phototrophs are partially or largely dependent on aqueous organic phosphate. This paper reports a study where the data are sufficient to assess the quantitative importance of organic phosphate in rivers in eastern UK. Filterable hydrolyzable phosphate-P (FHP) is used as a surrogate for organic phosphate, although FHP sometimes includes other P forms. Eighteen sites were sampled weekly for at least one, but mostly three years (2033 samples). The data are compared for mid- and lower-reach sites. FHP formed at least 20% TFP (total filterable phosphate-P) at 14 sites, with the percentage values higher at the more upstream and more northern sites. FHP exceeded 1000 μg.L−1 P in 32 mid- and 53 lower-reach records. The lower the TFP concentration, the higher the % FHP at both types of site. Five sites had over 25% of their records where FHP is likely to be especially important for growth of algae and bryophytes, based on FHP being >50 μg.L−1 P when TFP ≤200 μg.L−1 P. These include the upper site on River Swale, and other literature for this river indicates that FHP becomes increasingly important further upstream and even more so in tributary streams. FHP should be included in monitoring programmes for upland rivers, especially where the catchment includes peat-rich soils.

Type
Research Article
Copyright
© EDP Sciences, 2011

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References

American Public Health Association, 2005. Standard Methods for the Examination of Water and Wastewater, 21st edn., Washington, DC.
Baldwin, D.S., 1998. Reactive “organic” phosphorus revisited. Wat. Res. , 32, 22652270.CrossRefGoogle Scholar
Christmas, M. and Whitton, B.A., 1998. Phosphorus and aquatic bryophytes in the Swale-Ouse river system, north-east England. 1. Relationship between ambient phosphorus, internal N:P ratio and surface phosphatase activity. Sci. Total Environ ., 210/211, 389399.CrossRefGoogle Scholar
Denison, F.H., Haygarth, P.M., House, W.A. and Bristow, A.W., 1998. The measurement of dissolved phosphorus compounds: evidence for hydrolysis during storage and implications for analytical definitions in environmental analysis. Int. J. Environ. Anal. Chem. , 69, 111123.CrossRefGoogle Scholar
Eisenreich, S.J., Bannerman, R.T. and Armstrong, D.E., 1975. A simplified phosphorus analysis technique. Environment Letters , 9, 4353.CrossRefGoogle Scholar
Ellwood, N.T.W. and Whitton, B.A., 2007. Importance of organic phosphate hydrolyzed in stalks of the lotic diatom Didymosphenia geminata and the possible impact of climatic and atmospheric changes. Hydrobiologia , 592, 121133.CrossRefGoogle Scholar
Ellwood, N.T.W., Turner, B.L., Haile, S.M. and Whitton, B.A., 2007. Seasonal changes in the surface phosphatase kinetics of aquatic mosses in northern England. J. Bryol. , 29, 174182.CrossRefGoogle Scholar
Ellwood, N.T.W., Haile, S.M. and Whitton, B.A., 2008. Aquatic plant nutrients, moss phosphatase activities and tissue composition in four upland streams in northern England. J. Hydrol. , 350, 246260.CrossRefGoogle Scholar
Haygarth, P.M., Warwick, M.S. and House, W.A., 1997. Size distribution of colloidal molybdate reactive phosphorus in river waters and soil solution. Wat. Res. , 31, 439448.CrossRefGoogle Scholar
Heath, R.T., 2005. Microbial turnover of organic phosphorus in aquatic systems. In: Turner, B.L., Frossard, E. and Baldwin, D.S. (eds.), Organic phosphorus in the environment, CAB International, Wallingford, 183203.Google Scholar
House, W.A. and Warwick, M.S., 1998. Intensive measurements of nutrient dynamics in the River Swale. Sci. Total Environ. , 210/211, 117137.CrossRefGoogle Scholar
Jarvie, H.P., Whitton, B.A. and Neal, C., 1998. Nitrogen and phosphorus in east coast British rivers; Speciation, sources and biological significance. Sci. Total Environ. , 210/211, 79109.CrossRefGoogle Scholar
Jarvie, H.P., Withers, P.J.A. and Neal, C., 2002. Sampling, storage, speciation and sensitivity: considerations towards robust measurement of phosphorus in rivers. Hydrol. Earth Syst. Sc. , 6, 113131.CrossRefGoogle Scholar
Jarvie, H.P., Haygarth, P.M., Neal, C., Butler, P., Smith, B., Naden, P.S., Joynes, A., Neal, M., Wickham, H., Armstrong, L., Harman, S. and Palmer-Felgate, E.J., 2008. Stream water chemistry and quality along an upland-lowland rural land-use continuum, south-west England. J. Hydrol. , 350, 215231.CrossRefGoogle Scholar
Jarvie, H.P., Withers, P.J.A., Bowes, M.J., Palmer-Felgate, E.J., Harper, D.M., Wasiak, K., Wasiak, P., Hodgkinson, R.A., Bates, A., Stoate, C., Neal, M., Wickham, H.D., Harman, S.A. and Armstrong, L.K., 2010. Streamwater phosphorus and nitrogen across a gradient in rural–agricultural land use intensity. Agricult. Ecosyst. Environ. , 135, 238252.CrossRefGoogle Scholar
Kawecka, B. and Sanecki, J., 2003. Didymosphenia geminata in running waters of southern Poland – symptoms of change in water quality? Hydrobiologia , 495, 193201.CrossRefGoogle Scholar
Kilroy, C., 2004. A new alien diatom, Didymosphenia geminata (Lyngbye) Schmidt: its biology, distribution, effects and potential risks for New Zealand fresh waters, NIWA, Christchurch.
Lambert, D. and Maher, W., 1994. An evaluation of the efficiency of the alkaline persulphate digestion method for the determination of total phosphorus in turbid waters. Wat. Res. , 29, 79.CrossRefGoogle Scholar
Leeks, G.J.L., Neal, C., Jarvie, H.P., Casey, H. and Leach, D.V., 1997. The LOIS river monitoring network: strategy and implementation. Sci. Total Environ. , 194/195, 101109.CrossRefGoogle Scholar
Livingstone, D. and Whitton, B.A., 1984. Water chemistry and phosphatase activity of the blue-green alga Rivularia in Upper Teesdale streams. J. Ecol. , 72, 405421.CrossRefGoogle Scholar
Mateo, P., Berrendero, E., Perona, E., Loza, V. and Whitton, B.A., 2010. Phosphatase activities of cyanobacteria as indicators of nutrient status in a Pyrenees river. Hydrobiologia , 652, 255266.CrossRefGoogle Scholar
McElvie, I.D., 2005. Separation, preconcentration and speciation of organic phosphorus in environmental samples. In: Turner, B.L., Frossard, E. and Baldwin, D.S. (eds.), Organic phosphorus in the environment, CAB International, Wallingford, 121.Google Scholar
Murphy, J. and Riley, J.P., 1962. A modified single solution method for the determination of phosphate in natural waters. Anal. Chim. Acta , 282, 401450.Google Scholar
Neal, C. and Robson, A.J., 2000. A summary of river water quality data collected within the Land Ocean Interaction Study: core data for Eastern UK rivers draining to the North Sea. Sci. Total Environ. , 251/252, 585665.CrossRefGoogle Scholar
Neal, C., House, W.A., Leeks, G.J.L., Whitton, B.A. and Williams, R.J., 2000a. The water quality of UK rivers entering the North Sea. Sci. Total Environ. , 251/252, 58.CrossRefGoogle Scholar
Neal, C., Jarvie, H.P., Whitton, B.A. and Gemmell, J., 2000b. The water quality of the River Wear, north-east England. Sci. Total Environ. , 251/252, 153172.CrossRefGoogle Scholar
Neal, C., Jarvie, H.P., Williams, R.J., Pinder, L.C.V., Collett, G.D., Neal, M. and Bhardwaj, L., 2000c. The water quality of the Great Ouse. Sci. Total Environ. , 251/252, 423440.CrossRefGoogle Scholar
Neal, C., Williams, R.J., Neal, M., Bhardwaj, L.C., Wickham, H., Harrow, M. and Hill, L.K., 2000d. The water quality of the River Thames at a rural site downstream of Oxford. Sci. Total Environ. , 251/252, 441458.CrossRefGoogle Scholar
Neal, C., Jarvie, H.P., Neal, M., Love, A.J., Hill, L. and Wickham, H., 2005. Water quality of treated sewage effluent in a rural area of the upper Thames Basin, southern England, and the impacts of such effluents on riverine phosphorus concentrations. J. Hydrol. , 304, 103117.CrossRefGoogle Scholar
Neal, C., Jarvie, H.P., Williams, R.J., Love, A., Neal, M., Wickham, H., Harman, S. and Armstrong, L., 2010. Declines in phosphorus concentration in the upper River Thames (UK): Links to sewage effluent cleanup and extended end member mixing analysis. Sci . Total Environ. , 408, 13151330.CrossRefGoogle Scholar
Robson, A.J. and Neal, C., 1997. Regional water quality of the river Tweed. Sci. Total Environ ., 194/195, 173192.CrossRefGoogle Scholar
Tipping, E., Corbishley, H.T., Koprivnjak, J.F., Lapworth, D.J., Millerd, M.P., Vincent, C.D. and Hamilton-Taylor, J., 2009. Quantification of natural DOM from UV absorption at two wavelengths. Environ. Chem. , 6, 472476.CrossRefGoogle Scholar
Turner, B.L., 2005. Organic phosphorus transfer from terrestrial to aquatic environments. In: Turner, B.L., Frossard, E. and Baldwin, D.S. (eds.), Organic phosphorus in the environment, CAB International, Wallingford, 269294.CrossRefGoogle Scholar
Turner, B.L., Baxter, R. and Whitton, B.A., 2003. Nitrogen and phosphorus in soil solutions and drainage streams in Upper Teesdale, northern England: Implications of organic compounds for biological nutrient limitation. Sci. Total Environ. , 314/316, 153170.CrossRefGoogle Scholar
Whitton, B.A., Grainger, S.L.J., Hawley, G.R.W. and Simon, J.W., 1991. Cell-bound and extracellular phosphatase activities of cyanobacterial isolates. Microb. Ecol. , 21, 8598.CrossRefGoogle ScholarPubMed
Whitton, B.A., Yelloly, J.M., Christmas, M. and Hernández, I., 1998. Surface phosphatase activity of benthic algal communities in a stream with highly variable ambient phosphate concentrations. Verh. Int. Verein. Limnol. , 26, 967972.Google Scholar
Whitton, B.A., Al-Shehri, A.M., Ellwood, N.T.W. and Turner, B.L., 2005. Ecological aspects of phosphatase activity in cyanobacteria, eukaryotic algae and bryophytes. In: Turner, B.L., Frossard, E. and Baldwin, D.S. (eds.), Organic phosphorus in the environment, CAB International, Wallingford, 205241.CrossRefGoogle Scholar
Whitton, B.A., Ellwood, N.T.W. and Kawecka, B., 2009. Biology of the freshwater diatom Didymosphenia: A review. Hydrobiologia , 630, 137.CrossRefGoogle Scholar
Withers, P.J.A., Hodgkinson, R.H., Adamson, A. and Green, G., 2007. The impact of pasture improvement on phosphorus concentrations in soils and streams in an upland catchment in Northern England. Agricult. Ecosyst. Environ. , 122, 220232.CrossRefGoogle Scholar
Worrall, F., Burt, T.P. and Adamson, J.K., 2004. Trends in dissolved carbon in UK rivers and lakes. Biogeochemistry , 70, 369402.CrossRefGoogle Scholar