TCC - Bacharelado em Engenharia de Pesca (UAST)
URI permanente para esta coleçãohttps://arandu.ufrpe.br/handle/123456789/2938
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5 resultados
Resultados da Pesquisa
Item Acompanhamento e relato das atividades desenvolvidas no Laboratório de Experimentação de Organismos Aquáticos(2019) Santos, Wagner Soares; Falcon, Dario Rocha; http://lattes.cnpq.br/9816735154471425Item Atividades aquícolas no laboratório de experimentação de organismos aquáticos, UFRPE, UAST, Serra Talhada-PE(2019) Silva, Weverson Ailton da; Silva, Ugo Lima; http://lattes.cnpq.br/1858876631961029; http://lattes.cnpq.br/8320689687057292Item Atividades aquícolas no laboratório de experimentação de organismos aquáticos, UFRPE, UAST, Serra Talhada - PE(2018) Silva, Joyce Carla Carvalho da; Silva, Ugo Lima; http://lattes.cnpq.br/1858876631961029; http://lattes.cnpq.br/5764032184191409Item Efeito de densidades de estocagem na disponibilidade de alimento natural em berçário de camarão Litopenaeus vannamei (Boone, 1931) cultivado com tecnologia de biofloco(2018) Santos, Jorge Luiz da Silva; Silva, Ugo Lima; http://lattes.cnpq.br/1858876631961029; http://lattes.cnpq.br/3650685131155739The objective of this work was to determine the main components of planktonic food in the nursery of shrimp L. vannameiwith biofloc technology. The experiment was carried out for 28 days and a randomized design with three post-larval storage densities, D2: 2 PLs. L-1, D4: 4 PLs. L-1and D6: 6 PLs.L-1, with four replicates each, using molasses as carbon source, in the C: N ratio of 15: 1. Samples were collected weekly, with 2 liters of water in each tank, which were filtered with plankton net and concentrated in 250 mL. The qualitative and quantitative study of plankton with 1 mL sub-samples for zooplankton was carried out in the Sedgwick-Rafter chamber (ind.L-1). The phytoplankton was evaluated in slides and coverslips (nº cells.mL-1) analyzing 0,1 mL, bothunder light microscope. The temperature values remained close to 22 ° C, below the ideal temperature for L. vannameicultivation, since the appropriate range for this species is between 26 to 33ºC, but the dissolved oxygen was in the ideal conditions for its culture, which should be above 4.0 mg.L-1and during the experiment remained above 8 mg.L-1. The development of shrimp did not show any difference between the treatments, for the final weight variable, since the survival, the D2treatment obtained the highest survival (> 72%) and the production in D6was higher than in the other treatments (2.98 Pls.L-1). The zooplankton community in the nursery tanks was represented by 23 genera, distributed among the groups Rotifera, Protozoa, Nematoda, Platelmintos and Cladocera. The Protozoa group presented the most diversification, regardless of the treatment, and also presented the highest abundance (> 66%). The main genera of Protozoa were Aspidisca, Euplotesand Trinema, and the phytoplankton community was composed of 16 genera, distributed in the classes Chlorophyceae, Bacillariophyta, Cyanophyceaeand Dinophyceae, the dominant class was Bacillariophyta(> 41%), with the genera Naviculaand Cyclotella. The density of 4 PL.L-1gave the highest density of zooplankton, but for the phytoplankton the density of 6 PLs.L-1was the one with the highest amount.Item Microalgas do Semiárido: florações nocivas, variabilidade sazonal e suas possíveis aplicações biotecnológicas(2018) Oliveira, Carlos Yure Barbosa de; Dantas, Danielli Matias de Macêdo; Olivera Gálvez, Alfredo; http://lattes.cnpq.br/7002327312102794; http://lattes.cnpq.br/3422902414863662; http://lattes.cnpq.br/3825860944561089Microalgae and cyanobacteria are eukaryotes and prokaryotes, respectively, photosynthetic and use atmospheric CO2, light and inorganic compounds for their growth. In addition, they produce nutritional, bioactive compounds and some species mayproduce toxins (like some species of cyanobacteria and dinoflagellates). The present study aimed to identify and isolate species from the phytoplankton community of reservoirs located in the semiarid Pernambucano and later to evaluate the biotechnological potential of microorganisms previously isolated from the center of cultureof the Laboratório de Produção de Alimento Vivo (LAPVI-UFRPE/Sede). For the collection of these organisms a network with a mesh of 20μm was used, being part of the collected material fixed in formaldehyde to 4% and the rest submitted to the culture. After the sorting of all collected material, the canonical correspondence analysis was performed to evaluate possible interactions between the abiotic parameters and the species found. The evaluation of biotechnological potential occurred by the bioremediation capacity test of Chlorella vulgarisin effluent from a biofloc system (BFT). Twenty-one taxa were recorded, most of them of the class Chlorophyceae. Among the species found, we highlight the presence of Ceratium furcoides, an exotic dinoflagellate that is found in a growing geographic expansion in Brazil. In the evaluation of bioremediation potential, the presence of Chlorella vulgaris promoted a reduction in the levels of nitrogenous and phosphate compounds of the BFT effluent of approximately, 79.2% and 48%, respectively. In addition to the removal capacity of these compounds, BFT effluent presented as potential medium for the cultivation of this microalgae.