Abstract
An in situ chamber technique was used to obtain seasonal estimates of benthic community metabolism at three stations in an agriculturally disturbed stream. Two stations with open canopies were examined. Sand was the dominant substrate at one site, cobble at the other. The third station was shaded by riparian vegetation and had a sand substrate.
Seasonal estimates of net community productivity (NCP) and community respiration (CR) at the cobble section were significantly higher than those calculated for the sand sections (p>0.05). Ratios of gross community productivity (GCP) to 24 h respiration indicated autotrophic conditions in the cobble and extreme heterotrophy in the sand. NCP was significantly higher (p<0.05) in the open canopy sand than in the riparian shaded sand only when turbidity and discharge were low. Measurements of periphyton ash-free dry mass (AFDM) and chlorophyll a support metabolism estimates. Measurements of loose detrital AFDM were very low and variable compared to others reported in the literature. Therefore, allochthonously derived detritus may not be an important energy source for the benthic community.
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Butt, T. L., J. T. Brock, C. E. Cushing, S. V. Gregory, D. K. King & R. C. Petersen, 1978. A comparison of methods for measuring primary productivity and community respiration in streams. Hydrobiologia 60: 3–12.
Bott, T. L., J. T. Brock, C. S. Dunn, R. J. Naiman, R. W. Ovink & R. C. Petersen, 1985. Benthic community metabolism in four temperate stream systems: An inter-biome comparison and evaluation of the river continuum concept. Hydrobiologia 123: 3–45.
Brown, S. S. & D. K. King, 1987. Community metabolism in natural and agriculturally disturbed riffle sections of the Chippewa River, Isabella County, Michigan. Journal of Freshwater Ecology 4: 39–51.
Busch, D. E. & S. G. Fisher, 1981. Metabolism of a desert stream. Freshwat. Biol. 11: 301–307.
Davies-Colley, R. J., C. W. Hickey, J. M. Quinn & P. A. Ryan, 1992. Effects of clay discharges on streams. Hydrobiologia 248: 215–234.
Delong, M. D. & M. A. Brusven, 1992. Patterns of periphyton chlorophyll a in an agricultural nonpoint source impacted stream. Wat. Res. Bull. 28: 731–741.
Hill, W. R. & H. L. Boston, 1991. Community development alters photosynthesis-irradiance relations in stream periphyton. Limnol. Oceanogr. 36: 1375–1389.
Iversen, M. T., J. Thorup, K. Kjeldsen & N. Thyssen, 1991. Spring bloom development of microbenthic algae and associated invertebrates in two reaches of a small lowland stream with contrasting sediment stability. Freshwat. Biol. 26: 189–198.
King, D. K. & K. W. Cummins, 1989a. Autotrophic-heterotrophic community metabolism relationships of a woodland stream. J. Freshwat. Ecol. 5: 205–217.
King, D. K., 1989b. Factors affecting autotrophic-heterotrophic relationships of a woodland stream. J. Freshwat. Ecol. 5: 219–230.
King, D. K., 1989c. Estimates of detrital and epilithon community metabolism from particle-sized riffle sediments of a woodland stream. J. Freshwat. Ecol. 5: 231–245.
Lenat, D. R., 1984. Agriculture and stream water quality: a biological evaluation of erosion control practices. Envir. Mgmt 8: 333–344.
Miller, A. R., R. L. Lowe & J. T. Rotenberry, 1987. Succession of diatom communities on sand grains. J. Ecol. 75: 693–709.
Minshall, G. W., R. C. Peterson, T. L. Bott, C. E. Cushing, K. W. Cummins, R. L. Vannote & J. R. Sedell, 1992. Stream ecosystem dynamics of the Salmon River, Idaho: an 8th-order system. J. n. am. benthol. Soc. 11: 111–137.
Minshall, G. W., R. C. Peterson, K. W. Cummins, T. L. Bott, J. R. Sedell, C. E. Cushing & R. L. Vannote, 1983. Interbiome comparison of stream ecosystem dynamcis. Ecol. Monogr. 53: 1–24.
Naiman, R. J. & J. R. Sedell, 1980. Relationships between metabolic parameters and stream order in Oregon. Can. J. Fish. aquat. Sci. 37: 834–847.
Naimo, T., J. B. Layzer & A. C. Miller, 1988. Benthic community metabolism in two northern Mississippi streams. J. Freshwat. Ecol. 4: 503–515.
Pfeifer, R. F. & W. F. McDiffett 1975. Some factors affecting primary productivity of stream riffle communities. Arch. Hydrobiol. 75: 306–317.
Resh, V. H., A. V. Brown, A. P. Covich, M. E. Gurtz, H. E. Li, G. W. Minshall, S. R. Reice, A. L. Sheldon, B. J. Wallace & R. C. Wissmar, 1988. The role of disturbance in stream ecology. J. n. am. benthol. Soc. 7: 433–455.
Stevenson, J. R., C. G. Peterson, D. B. Kirschtel, C. C. King & N. C. Tuchman, 1991. Density-dependent growth, ecological strategies, and effects of nutrients and shading on benthic diatom succession in streams. J. Phycol. 27: 59–69.
Stock, M. S. & A. K. Ward, 1989. Establishment of a bedrock epilithic community in a small stream: microbial (algal and bacterial) metabolism and physical structure. Can. J. Fish. aquat. Sci. 46: 1874–1883.
Swales, S., 1982. Environmental effects of river channel works used in land drainage improvement. J. envir. Mgmt 14: 103–126.
Tett, P., C. Gallegos & M. G. Kelly, 1978. Relationships among substrate, flow, and benthic microalgal pigment density in the Mechums River, Virginia. Limnol. Oceanogr. 23: 785–797.
Tuchman, N. C. & R. H. King, 1993. Changes in mechanisms of summer detritus processing between wooded and agricultural sites in a Michigan headwater stream. Hydrobiol. 268: 115–127.
Vannote, R. L., W. G. Minshall, K. W. Cummins, J. R. Sedell & C. E. Cushing, 1980. The river continuum concept. Can. J. Fish. aquat. Sci. 37: 130–137.
Vollenweider, R. A., 1969. A manual on methods for measuring primary production in aquatic environments. International Biological Program Handbook No. 12. Blackwell Scientific Publications Ltd., Oxford, England: 213 pp.
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Rier, S.T., King, D.K. Effects of inorganic sedimentation and riparian clearing on benthic community metabolism in an agriculturally-disturbed stream. Hydrobiologia 339, 111–121 (1996). https://doi.org/10.1007/BF00008919
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DOI: https://doi.org/10.1007/BF00008919