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| Costa,Weruska de Melo; Lavander,Henrique David; Oliveira,Leônidas; Souza,André Batista de; Gálvez,Alfredo Olivera; Arana,Luiz Alejandro Vinatea. |
| O objetivo deste trabalho foi avaliar a remoção de compostos nitrogenados e fosfatados e da carga orgânica poluidora oriunda de cultivo heterotrófico de camarão marinho, por meio de reator anaeróbico. Foi construído um reator com fluxo ascendente, em que os efluentes de entrada e saída foram avaliados continuamente durante 120 horas, com três repetições. Os parâmetros físicos e químicos avaliados foram: temperatura, pH, condutividade, ortofosfato, nitrito, nitrato, amônia, demanda química de oxigênio e sólidos totais. O reator permaneceu estável, com boas condições de retenção de sólidos. O reator anaeróbico removeu 96,7% do nitrogênio amoniacal e 91% de ortofosfatos dos efluentes de cultivo de camarão marinho, o que mostra que os efluentes tratados estão... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Litopenaeus vannamei; Águas residuais; Controle de poluição; Cultivo de camarão; Qualidade de água. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000800058 |
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| Oliveira,Isabela Bacalhau de; Lavander,Henrique David; Lima,Priscilla Celes Maciel de; Oliveira,Carlos Yure Barbosa de; Dantas,Danielli Matias de Macedo; Gálvez,Alfredo Olivera. |
| ABSTRACT: Anomalocardia brasiliana post-larvae were cultured for 28 days to evaluate the effect of stocking density on their growth and survival rate. Three stocking densities were tested 40, 80 and 160 post-larvae cm-2, in experimental units (2-L) with static cultivation system and total water renewal at each 48 hours. The experimental design was completely randomized with three treatments and three repetitions each. Stocking density of 40 post-larvae cm-2 reached 1 mm length within 24 days, while only 18% of the post-larvae at density of 80 post-larvae cm-2 reached 1 mm length in the same time. The density of 40 post-larvae cm-2 had the highest specific growth rate, 4.98±0.08% day-1. The survival rates of post-larvae at lower densities were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aquaculture; Clams; Larviculture; Microalgae; West Indian pointed venus. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019001200652 |
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| Funo,Izabel Cristina da Silva Almeida; Antonio,Ícaro Gomes; Marinho,Yllana Ferreira; Monteles,Josinete Sampaio; Lopes,Rodolf Gabriel Prazeres Silva; Gálvez,Alfredo Olivera. |
| ABSTRACT: The purpose of this study was to determine the moment of the year for the oyster recruitment and define the type of collector and environmental conditions that maximize recruitment. Collections were conducted, during 12 months, on Amazon Macrotidal Mangrove at two different sites: raft (point I) and mangrove (point II). In each location three types of collectors were used (1) transparent PET bottles, (2) green PET bottles, and (3) PVC sheets, each with three replicates. Spats were counted and measured at 45-day intervals, while the environmental data were measured every two weeks. Identification of oyster species occurred by genetic testing (multiplex PCR) by randomly selecting individuals by sampling. Results indicated spat capturing was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mangrove oyster; Spat collection; Environmental variables. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000300650 |
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