01. Universidade Federal Rural de Pernambuco - UFRPE (Sede)
URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/1
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Item Avaliação de parâmetros de produção na Estação de Piscicultura Continental Johei Koike, UFRPE(2023-09-13) Silva, Karla Tamires Costa da; Porto Neto, Fernando de Figueiredo; http://lattes.cnpq.br/1475750525654086; http://lattes.cnpq.br/7979379154298688An aquatic environment for rational fish farming has its own complex ecology, where the dynamics of biological and physical-chemical processes determine water quality conditions. Planktonic communities represent a sensitive tool to monitor environmental variations, as indicators of water quality, levels of pollution and eutrophication, as well as important food sources for the trophic chain. The present work aims to evaluate the quality of water and plankton composition, as a management tool in fish farming at the Continental Pisciculture Station Johei Koike, UFRPE. The total volume of the ponds and the flow rate of the supply channel were calculated, and water was collected for five consecutive weeks in nine active fish ponds at the station, located on the main campus of the Federal Rural University of Pernambuco (UFRPE). In each pond a surface horizontal trawl was carried out with a plankton net (mesh opening of 64 μm). Plankton samples were preserved in 70% alcohol and analyzed at the Zooplankton Laboratory of the Department of Oceanography at UFPE. The identification took place at the taxonomic level of large groups. For the nine ponds the water transparency was always less than 25 cm, and in general the temperature was always between 28 and 29°C. Thus, a low variety of plankton species was observed in the ponds. Phytoplankton populations did not show large variations. In the nine ponds, the phylum Chlorophyta was the group of algae with the highest number of cells. As for zooplankton it varied between the nurseries according to the type of fish cultivated and the trophic conditions. The phylum Rotifera was in greater numbers in the nurseries. However, total phytoplankton and zooplankton densities point to three different pond groups, where pond size and type as well as uses and management seem to significantly affect populations of these organisms.Item Caracterização da composição do plâncton em viveiros de piscicultura na Estação de Piscicultura Continental Johei Koike (UFRPE)(2022-10-07) Laurentino, Isla Mishele da Silva; Porto Neto, Fernando de Figueiredo; http://lattes.cnpq.br/1475750525654086; http://lattes.cnpq.br/3476650402323599An aquatic environment for the rational creation of fish has its own complex ecology, where the dynamics of biological and physical-chemical processes determine the conditions of water quality. Planktonic communities represent a sensitive tool to monitor environmental variations, such as indicators of water quality, levels of pollution and eutrophication, as well as important food sources for the trophic chain. The objective was to investigate the planktonic community of three active fish ponds in a diversion system and identify patterns in this community. Weekly water collections were carried out in three active fish ponds, at the Professor Johei Koike Aquaculture Station located on the headquarters of the Federal Rural University of Pernambuco (UFRPE). A superficial horizontal trawl was performed in each pond, with a plankton net with a mesh opening of 64 μm. The plankton samples were preserved in 70% alcohol and analyzed at the Zooplankton Laboratory of the Department of Oceanography at UFPE. The identification took place at the taxonomic level of large groups. For the three ponds, the water transparency was always below 25cm, decreasing from ponds 1 to 3 and in general the temperature was always between 28 and 29°C. Thus, a low variety of plankton species was observed in the ponds. Phytoplankton populations did not show great variations, in the three ponds the phylum Chlorophyta was the group of algae with the highest number of cells. On the other hand, zooplankton varied between ponds according to the type of fish cultivated and trophic conditions, the phylum Rotifera was in greater number in the three ponds, however, with abundance in relation to the other species in pond 3. that water quality parameters and the type of fish farmed appear to be the main factors controlling plankton populations in ponds.Item Efeito da frequência de adição do zooplâncton Brachionus plicatilis sobre o desempenho zootécnico de pós-larvas da espécie Litopenaeus vannamei cultivado em sistema de bioflocos(2023-03-15) Malandra, Adely Leticia Alves; Silva, Luis Otávio Brito da; http://lattes.cnpq.br/3365265235618078; http://lattes.cnpq.br/5263002170389598Item Avaliação ambiental do estuário do Capibaribe por intermédio da fauna planctônica: estrutura e indicadores biológicos da qualidade da água(2019-12-12) Cruz, Maria Mylena Oliveira da; Melo Júnior, Mauro de; http://lattes.cnpq.br/6735233221650148; http://lattes.cnpq.br/7317426286930736The general objective of this work was to evaluate a heavily polluted estuary (Capibaribe) through the zooplankton community and verify its potential use as a bioindicator of water quality. To test the hypothesis that in the Capibaribe estuary, the water quality condition is eutrophicated to the point of sustaining (i) a zooplankton community formed by species indicative of abundant particulate organic matter, low oxygenation and high turbidity and (ii) the establishment of small populations dominated mainly by rotifers, the campaigns were carried out in the urban area of the river in the city of Recife (Pernambuco), in three sectors based on the salinity gradient: Euhaline, Polyhaline, Meso-oligohaline and 9 collection stations. Six campaigns were carried out, always during low tide. Data regarding environmental variables were measured from a Horida U-52 probe. Zooplankton samples were collected by filtering a minimum of 100 L through a plankton net (45 µm) and a graduated bucket and fixed with 4% saline formaldehyde. The bioindication of taxa was evaluated by the Indication Value (IndVal) method, where ten species belonging to the Rotifera group, Copepoda and Polychaeta larvae were found. For the zooplankton community, 46 taxa belonging to the groups Rotifera, Annelida (Polychaeta), Mollusca (velliceroy of Gastropoda), Crustacea (Copepoda, Cladocera, Decapoda, Cirripedia), Chaetognatha and Chordata (fish larvae and eggs) were recorded. Rotifera was the most frequent group, especially Brachionus angularis (81.48%), the mean density was 625.4+-731.8 ind. L-1. The highest richness was in the Euhaline (dry) and Meso-oligohaline (rainy) sectors, the rotifer dominance and diversity were higher in the Meso-oligohaline sector for both periods. The study proved the hypotheses that the estuary is dominated by smallsized species and bioindicators of abiotic factors that indicate pollution, showing that the Capibaribe River estuary is being affected by anthropic disturbance and that bioindicator species can be used for water quality monitoring.Item Estudos sobre a fauna planctônica de um complexo estuarino no litoral norte de Pernambuco: estado da arte e perspectivas(2019-02-05) Pereira, Rayssa Thaís de Oliveira; Melo Júnior, Mauro de; http://lattes.cnpq.br/6735233221650148; http://lattes.cnpq.br/3001942985766390Estuaries are very dynamic environments and have a high level of productivity. The Santa Cruz Channel, located on the northern coast of Pernambuco, acts as the key element in regulating the abiotic phenomena of the estuarine complex. The zooplankton is represented by important species in the bioindicación in the quality of the water, since, its communities are directly affected by the biotic and abiotic conditions. The present study aims to gather a quantitative of research published between the 1970s and 2010, aiming to raise scientific gaps related to the estuarine zooplankton of this estuarine complex. A total of 20 published articles and book chapters were analyzed. The studies were tabulated, based on the presence (1) and absence (0) of elements such as year of publication, locality, subjects addressed, biotic and abiotic aspects of the area. Studies related to the estuarine zooplankton of the Santa Cruz Channel were started in the 1970s. However, during the most recent decades (1990-2010), surveys are characterized by the continuity of the descriptive works, to the detriment of the analyzes on vertical migration, secondary production, feeding and exploration of more zooplanktonic groups besides Copepoda, Decapoda and total zooplankton. Some approaches have gained greater visibility in the last years of the decade of 2010, presenting more descriptive researches regarding zooplankton and the estuarine complex.