Macroinvertebrate functional organization and water quality in a large arid river from Patagonia (Argentina)
作者： M. L. Miserendino
DOI: 10.1051/LIMN:2007008
关键词: Biomass (ecology) 、 Water quality 、 Detritus 、 Fauna 、 Benthic zone 、 Relative species abundance 、 Hydrology 、 Drainage basin 、 Abundance (ecology) 、 Ecology 、 Environmental science
摘要: The composition and abundance of functional feeding groups the macroinvertebrate communities were investigated along Chubut River in Patagonian Precordillera Plateau, Argentina. (>1000 km) is largest river area hydrological regime modified lower section by an artificial reservoir (Florentino Ameghino Dam). Quantitative benthic samples collected at 13 sites upper, middle sections basin. Sites visited four times during 2004 physicochemical parameters, chlorophyll a particulate organic matter (POM) assessed. In terms relative abundance, collector-gatherers scrapers/grazers predominant most sites. Shredders not abundant upper practically absent basin Collector filterers that comprised more than 25 % pre-regulated site right below dam. POM biomass decreased significantly with distance from source showed marked increase reservoir. We conclude although there was distinct headwaters fauna River, sequential downstream changes species composition, (apart shredders) represented down whole length river. Finally, usefulness biotic indices metrics relation main environmental features discussed.
paperity.org参考文章(46)
P D Armitage, Environmental changes induced by stream regulation and their effect on lotic macroinvertebrate communities Regulated Rivers-research & Management. pp. 139- ,(1984)
Barbara Bis, Anna Zdanowicz, Maciej Zalewski, Effects of catchment properties on hydrochemistry, habitat complexity and invertebrate community structure in a lowland river Hydrobiologia. ,vol. 422, pp. 369- 387 ,(2000) , 10.1007/978-94-011-4164-2_30
Irina Izaguirre, Guillermo Tell, Rubén Darió Quintana, Flora y fauna patagónicas Ediciones Caleuche. ,(1997)
Pamela F. Reece, John S. Richardson, Benthic macroinvertebrate assemblages of coastal and continental streams and large rivers of southwestern British Columbia, Canada. Hydrobiologia. ,vol. 439, pp. 77- 89 ,(2000) , 10.1023/A:1004105820586
Alex Tawanda Kuvarega, Philip Taru, Application of biological measures for stream integrity assessment in south-east Brazil. Environmental Monitoring and Assessment. ,vol. 101, pp. 117- 128 ,(2005) , 10.1007/S10661-005-9141-1
P. Smilauer, C.J.F. ter Braak, CANOCO Reference Manual and User's Guide to Canoco for Windows: Software for Canonical Community Ordination (Version 4) Centre for Biometry. ,(1998)
Stella M Velásquez, M Laura Miserendino, Análisis de la materia orgánica alóctona y organización funcional de macroinvertebrados en relación con el tipo de hábitat en ríos de montaña de Patagonia Ecología austral. ,vol. 13, pp. 67- 82 ,(2003)
Nels H Troelstrup, Garv L Hergenrader, None, Effect of hydropower peaking flow fluctuations on community structure and feeding guilds of invertebrates colonizing artificial substrates in a large impounded river Hydrobiologia. ,vol. 199, pp. 217- 228 ,(1990) , 10.1007/BF00006354
SHERRI JOHNSON, ALAN COVICH, Scales of observation of riparian forests and distributions of suspended detritus in a prairie river Freshwater Biology. ,vol. 37, pp. 163- 175 ,(1997) , 10.1046/J.1365-2427.1997.00150.X
G. Bretschko, River/land ecotones: scales and patterns Hydrobiologia. ,vol. 303, pp. 83- 91 ,(1995) , 10.1007/978-94-017-3360-1_8