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2016 | 25 | 2 |
Tytuł artykułu

Response of small-stream biota to sudden flow pulses following extreme precipitation events

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Extreme discharge rate increases in small streams caused by sudden extreme precipitation events are classifi ed as small-scale pulse-type disturbances. Small highland brooks in agricultural landscapes (arable land and meadows) are frequently characterised by extremely low flows during normal conditions, plus the rare appearance of high-flow events that periodically may reset their ecosystems. We studied two small highland brooks to assess the impact of extreme discharge rates (flow pulses) upon periphyton, macrozoobenthos, and fish assemblages. No distinct changes were recorded in composition of periphyton assemblage or fish (brown trout, Salmo trutta m. fario) occurrence following such flow pulses. Cyanobacteria, however, were absent following a flow pulse, while growth appeared to be boosted in green algae (Chlorophyceae). Similarly, there was no negative response observed in macrozoobenthos communities, with density, diversity, taxa richness, and saprobic indices remaining either more-or-less unchanged or considerably enhanced following high-discharge episodes. These observations were confi rmed through Sörensen’s similarity indices, which indicated no signifi cant change in either periphyton or macrozoobenthos following such episodes.
Słowa kluczowe
Wydawca
-
Rocznik
Tom
25
Numer
2
Opis fizyczny
p.495-501,fig.,ref.
Twórcy
autor
  • Institute of Aquaculture, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Husova tr.458/12, 370 05 Ceske Budejovice, Czech Republic
autor
  • Research Institute for Soil and Water Conservation, Lidicka 25/27, 602 00 Brno, Czech Republic
  • Research Institute for Soil and Water Conservation, Lidicka 25/27, 602 00 Brno, Czech Republic
  • Institute of Vertebrate Biology AS CR, Kvetna 8, 603 65 Brno, Czech Republic
autor
  • Institute of Vertebrate Biology AS CR, Kvetna 8, 603 65 Brno, Czech Republic
Bibliografia
  • 1. IPCC. Climate Change 2007. Synthesis Report. An Assessment of the Intergovernmental Panel on Climate Change, Valencia. http://www.ipcc.ch/pdf/ assessment-report/ar4/syr/ ar4_syr.pdf, 2007.
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  • 6. BOOJI M. J. Impact of climate change on river flooding assessed with different spatial model resolutions. J. Hydrol., 303 (1), 176, 2005.
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  • 9. SNYDER E., NELSON J., DROGOWSKI J., HARJU M. Aquatic Ecosystem Response to Storm Water Abatement Measures in the Ravines of the GVSU Allendale Campus: Establishment of Base-line Biological Condition. Technical Reports Paper 6, Online:http://scholarworks.gvsu.edu/biore-ports/6. 2008.
  • 10. STUBBINGTON R., WOOD P.J., BOULTON A.J. Low flow controls on benthic and hyporheic macroinvertebpate assemblages during supra-seasonal drought. Hydrol. Process., 23, 2252, 2009.
  • 11. ALLAN J.D., CASTILLO M.M. Stream ecology: structure and function of running waters. Chapman and Hall, London, 450 p., 2007.
  • 12. WYER M.D., KAY D., WATKINS J., DAVIES Ch., KAY Ch., ROD T., PORTER J., MOORE C. Evaluating short-term changes in recreational water quality during a hydrograph event using a combination of microbial tracers, environmental microbiology, microbial source tracking and hydrological techniques: A case study in Southwest Wales, UK. Water Res., 44 (16), 4783, 2010.
  • 13. SPONSELLER R.A., GRIMM N.B., BOULTON A.J., SABO J.L. Responses of macroinvertebrate communities to long-term flow variability in a Sonoran Desert stream. Global Change Biol., 16, 2891, 2010.
  • 14. CSN 75 7715. Jakost vod - Biologický rozbor - Stanovení nárostů (Water quality - Biological analysis - Determination of periphyton. In Czech). Czech Standards Institute, Prague, 1998.
  • 15. CSN 75 7716. Jakost vod - Biologický rozbor - Stanovení saprobního indexu (Water quality - Biological analysis -Determination of saprobic index. In Czech). Czech Standards Institute, Prague, 1998.
  • 16. MATOUŠKOVÁ M. Assessment of river habitat quality within European Water Framework Directive - application to different catchments in the Czech Republic. Geografie. Praha: Charles University, 3 (113), 19, 2008.
  • 17. VALOVÁ Z., ADÁMEK Z. Ekologické dopady extrémních srážko-odtokových situací v malých povodích - přehled. (Ecological implications of extreme precipitation-discharge events in small catchment areas. A review. In Czech). Bulletin VÚRH Vodňany, 46 (3), 53, 2010.
  • 18. SUREN A.M., JOWET I.G. Effects of floods versus low flows on invertebrates in a New Zealand gravel-bed river. Freshwater Biol., 51, 2207, 2006.
  • 19. FULLER R.L., LAFAVE C., ANASTASI M., MOLINA J., SALCEDO H., WARD S. The role of canopy cover on the recovery of periphyton and macroinvertebrate communities after a month-long flood. Hydrobiologia, 598, 47, 2008.
  • 20. ADÁMEK Z., HELEŠIC J., MARŠÁLEK B., RULÍK M. Applied Hydrobiology. FROV JU, Vodňany, 350., 2014.
  • 21. TORNÉS E., ACUŇA V., DAHM C.N., SABATER S. Flood disturbance effects on benthic diatom assemblage structure in a semiarid river network. J. Phycol., 51, 133, 2015.
  • 22. GJERLOV C., HILDREW A.G., JONES J.I. Mobility of stream invertebrates in relation to disturbance and refugia: a test for habitat templet theory. J. N. Am. Benthol. Soc., 22, 207, 2003.
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
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