https://www.socictopen.socict.org/files/original/e3f3f8d1d2e93fdbac37c74dce6367e6.pdf 8640e2b71b39e664b69e3dc6e6fad48f Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Agricultura sostenible Description An account of the resource Dominio científico: Agricultura sostenible Text A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Small dams also change the benthic macroinvertebrates community in rocky rivers Creator An entity primarily responsible for making the resource Gilmar Perbiche-Neves, Leticia de Mattos, Larissa Dal Molin Kruger, Ana Lucia Suriani Affonso, Sidnei Pressinatte Junior Description An account of the resource Abstract Aim: Here we analyzed some basic ecological attributes (richness and density) of the benthic community in a stretch of a rocky river under the influence of a small dam of a meter in height, forming a small reservoir of run-of-river type. Methods Sediment samples were taken with a Petersen collector at three different periods and in three sites: upstream from the dam (site 1), close to the dam (site 2) and downstream from the dam (site 3). Organisms were separated in large groups and Chironomidae genera. Results The particle size analysis indicated that the sites 1 and 2 are dominated by fine sediments, in contrast to site 3, composed of medium and coarse sediments. A total of 23 taxa of benthic macroinvertebrate groups and 31 genera of Chironomidae were found. Richness and density were different among sampling sites, and for large groups and Chironomidae its attributes increased towards downstream, probably explained by the sediment composition and the originally lotic conditions in site 3, confirmed by all statistical analysis used. In the dam site (2) there was a richness decrease. Non metric multidimensional analysis showed a clear spatial separation of large groups of macroinvertebrates and chironomid genera between sampling sites, indicating that there are typical taxa of each spatial compartment. Canonical correspondence analysis correlated only rubble sediment with the abundance of large groups, and for Chironomidae genera only the granules type was correlationed, with two groups of taxa in the anlysis: one with sites 1 and 2, and other with site 3. Conclusions Even very small dams in rocky rivers as in the present study alter the environmental variables and ecological attributes of benthic macroinvertebrates. Date A point or period of time associated with an event in the lifecycle of the resource 2017 Subject The topic of the resource Brasil, Chironomidae, Rio Jordão, ecología, lóticos, sedimento Identifier An unambiguous reference to the resource within a given context 10.1590/s2179-975x5316 Source A related resource from which the described resource is derived Acta Limnologica Brasiliensia Publisher An entity responsible for making the resource available Associação Brasileira de Limnologia Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Ecology Relation A related resource <a href="http://www.scielo.br/scielo.php?script=sci_arttext&amp;pid=S2179-975X2017000100315&amp;lng=en&amp;tlng=en" target="_blank" rel="noreferrer noopener">http://www.scielo.br/scielo.php?script=sci_arttext&amp;pid=S2179-975X2017000100315&amp;lng=en&amp;tlng=en</a>