Banca de QUALIFICAÇÃO: RAQUEL SANTOS BATISTA

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
DISCENTE : RAQUEL SANTOS BATISTA
DATA : 07/09/2021
HORA: 14:00
LOCAL: Ensino Remoto Emergencial.
TÍTULO:

BENTONIC MACROINVERTEBRATES AS BIOLOGICAL INDICATORS OF ENVIRONMENTAL QUALITY IN THE NORTH PANTANAL, CÁCERES-MT, BRAZIL.

PALAVRAS-CHAVES:

Water resources, Wetlands, Anthropization, Biotic indices, Aquatic insects.

PÁGINAS: 63
GRANDE ÁREA: Ciências Biológicas
ÁREA: Biologia Geral
RESUMO:

Aquatic invertebrates are of great ecological importance in freshwater environments, participating decisively in the processes of fragmentation and decomposition of organic matter. The identification of the aquatic macrofauna is quite approximately in determining the environmental quality through the use of biomonitoring indices. Researchers and companies from all over the world have used macroinvertebrates as pieces for environmental qualification because they are considered good biological indicators, due to their sensitivity they respond to environmental variations, which, according to the families present there, receive a note that serves for the creation and adaptation of environmental quality biomonitoring indexes. Therefore, this research aims to investigate the biodiversity of benthic macroinvertebrates in environments with different degrees of anthropization, as well as to qualify their efficiency and suitability of biotic indexes of assessment in tropical humid areas. The first work was carried out a scientometric review of scientific articles indexed in the Scopus, ScienceDirect and Scielo databases in an interval from 2000 to 2020; the second article deals with the description of the community's diversity using environmental quality indicators. The results of the research in scientometric analysis showed a scientific production of 314 articles, among which 60 biotic indexes were addressed. Among these, EPT (Ephemeroroptera, Plecoptera and Trichopter) was the most used in scientific research. Among the indexes found, the only one that showed a trend of use for the coming years was the ASPT (Average Score Per Taxon). The studied indices represent water monitoring options that, with adaptations, can be used in different climates and hydrographic basins in the world, carried out in eight locations (Paraguay River, urban streams, Caramujo streams, water ponds and Taiamã Ecological Station (UC- Campo, UC- Rio Paraguai and UC- Rio Bracinho,). Macroinvertebrates were samples using a Van Veen dredge and at the Laboratory, families were analyzed and identified. To take data on the limnological variables, a multiparametric probe was used in addition to the samples of water for the analysis of nitrogen and phosphorus. The macrofauna was represented by 2.210 individuals and the greatest abundance was found in more preserved places, there were positive and statistically significant relationships for dissolved oxygen, water temperature and rapid assessment protocol-RAP with the density of the organisms (ind/m²). The results showed that the indexes EPT and IBF (Benthic Family Index) were the best that match the reality of the environments, corresponding to the results of the RAP. The principal component analysis (PCA) characterized each environment with distinct variables. We can conclude that, for a more robust characterization of aquatic environments, it is necessary to apply several biotic indices together with the physical and chemical variables, thus strengthening the monitoring of environmental quality as well as the creation of biological indexes.

MEMBROS DA BANCA:
Interno - 83161001 - CELIA ALVES DE SOUZA
Interno - 65536013 - CLAUMIR CESAR MUNIZ
Externo à Instituição - CRISTINA MÁRCIA DE MENEZES BUTAKKA - UNIC
Presidente - 118188001 - ERNANDES SOBREIRA OLIVEIRA JUNIOR