https://socictopen.socict.org/files/original/9b953de406e121a67d3dbf50555bddc3.pdf 7c4fc309b9a2f94071b9aa13cffa9adc 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 Taxonomical and ecological characteristics of the desmids placoderms in reservoir: analyzing the spatial and temporal distribution Creator An entity primarily responsible for making the resource Sirlene Aparecida Felisberto, Liliana Rodrigues, Helivânia Sardinha dos Santos Description An account of the resource AIM: This study aimed to evaluate the influence of river-dam axis and abiotic factors on the composition of Closteriaceae, Gonatozygaceae, Mesotaeniaceae and Peniaceae in a tropical reservoir METHODS: Water samples for physical, chemical and periphyton analysis were collected in April and August 2002 in different regions along the axis of the river-dam of Rosana Reservoir, River Basin Paranapanema. The substrates collected, always in the litoranea region, were petioles of Eichhornia azurea (Swartz) Kunth. To examine the relationship of abiotic variables with reservoir zones and between the floristic composition of desmids, we used principal component analysis (PCA) and canonical correspondence analysis (CCA RESULTS: The results of the PCA explained 81.3% of the total variability in the first two axes. In the first axis, the variables of conductivity, water temperature and the pH were related to the sampling regions of April with higher values, while for the month of August, nitrate, total phosphorus and dissolved oxygen showed higher values. We identified 20 taxa, distributed in the genera Closterium (14), Gonatozygon (4), Netrium (1) and Penium (1). Spatially, the higher taxa were recorded in the lacustrine region for both collection periods. The canonical correspondence analysis (CCA) summarized 62.2% of total data variability of taxa in the first two axes, and in August, Closterium incurvum Brébisson, C. cornu Ehrenberg ex Ralfs and Gonatozygon monotaenium De Bary, were related to higher values of turbidity and nitrate to the lacustrine and intermediate regions CONCLUSION: Thus, the formation of groups was due to the regions along the longitudinal axis, then the seasonal period, which must be related to the low current velocity, the higher values of temperature and the water transparency, especially in late summer Date A point or period of time associated with an event in the lifecycle of the resource 2014 Subject The topic of the resource Zygnemaphyceae, algas perifíticas, ecología, taxonomia Identifier An unambiguous reference to the resource within a given context 10.1590/S2179-975X2014000400007 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=S2179-975X2014000400007&amp;lng=en&amp;tlng=en" target="_blank" rel="noreferrer noopener">http://www.scielo.br/scielo.php?script=sci_arttext&amp;pid=S2179-975X2014000400007&amp;lng=en&amp;tlng=en</a>