Biological strategy to improve decomposition of organic matter in tilapia pond
Abstract: Aim The increment of decomposition of organic matter in sediment samples from Nile tilapia farms was evaluated with the introduction of Bacillus subtilis and B. licheniformis bacteria. Methods Sediment samples placed in 18L plastic boxes received single dose inoculum with the following c...
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Limnologia
2020-11-01
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| Series: | Acta Limnologica Brasiliensia |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2020000100706&tlng=en |
| _version_ | 1818744672610156544 |
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| author | Gustavo Ruschel Lopes Hugo Mendes de Oliveira Gabriel Fernandes Alves de Jesus Maurício Laterça Martins Carlos Henrique Araújo de Miranda Gomes Thiago Soligo José Luiz Pedreira Mouriño |
| author_facet | Gustavo Ruschel Lopes Hugo Mendes de Oliveira Gabriel Fernandes Alves de Jesus Maurício Laterça Martins Carlos Henrique Araújo de Miranda Gomes Thiago Soligo José Luiz Pedreira Mouriño |
| author_sort | Gustavo Ruschel Lopes |
| collection | DOAJ |
| description | Abstract: Aim The increment of decomposition of organic matter in sediment samples from Nile tilapia farms was evaluated with the introduction of Bacillus subtilis and B. licheniformis bacteria. Methods Sediment samples placed in 18L plastic boxes received single dose inoculum with the following concentrations: 1.21 x 106 CFU g-1 (equivalent to 75 g ha-1), 2.41 x 106 CFU g-1 (equivalent to 150 g ha-1), 4.82 x 106 CFU g-1 (equivalent to 300 g ha-1) and 1.61 x 107 CFU g-1 (equivalent to 1000 g ha-1), in addition to a control treatment with saline solution only. Organic matter content, total organic carbon (TOC) and oxidizable (OOC), total nitrogen (TN), ratios (TOC: N and OOC: N), clay content, pH in water, Shoemaker, McLean, Pratt index (SMP Index), phosphorus (P), potassium (K), calcium (Ca) and magnesium (Mg) contents, potential acidity (H + Al), cation exchange capacity (CEC) at pH 7.0, base saturation (V) and sum of bases (S). Results The values of OM showed significant difference, between the lowest values (treatments 75, 150 and 300 g ha-1) and the highest value, (control treatment). TOC, OOC, NT and their relationships (TOC: N and OOC: N) showed significant differences between the mean values of the control treatment and the other treatments. Conclusions The addition of Bacillus subtilis and B. licheniformis bacteria increased the decomposition rate of organic matter in sediments samples from Nile tilapia farms. |
| first_indexed | 2024-12-18T02:48:02Z |
| format | Article |
| id | doaj.art-ed98c0706576431daca5fe06cc9e17de |
| institution | Directory Open Access Journal |
| issn | 2179-975X |
| language | English |
| last_indexed | 2024-12-18T02:48:02Z |
| publishDate | 2020-11-01 |
| publisher | Associação Brasileira de Limnologia |
| record_format | Article |
| series | Acta Limnologica Brasiliensia |
| spelling | doaj.art-ed98c0706576431daca5fe06cc9e17de2022-12-21T21:23:31ZengAssociação Brasileira de LimnologiaActa Limnologica Brasiliensia2179-975X2020-11-013210.1590/s2179-975x8419Biological strategy to improve decomposition of organic matter in tilapia pondGustavo Ruschel Lopeshttps://orcid.org/0000-0002-0506-3567Hugo Mendes de Oliveirahttps://orcid.org/0000-0003-4523-3302Gabriel Fernandes Alves de Jesushttps://orcid.org/0000-0003-0594-3529Maurício Laterça Martinshttps://orcid.org/0000-0002-0862-6927Carlos Henrique Araújo de Miranda Gomeshttps://orcid.org/0000-0001-6533-9249Thiago Soligohttps://orcid.org/0000-0001-5592-1315José Luiz Pedreira Mouriñohttps://orcid.org/0000-0002-8619-0882Abstract: Aim The increment of decomposition of organic matter in sediment samples from Nile tilapia farms was evaluated with the introduction of Bacillus subtilis and B. licheniformis bacteria. Methods Sediment samples placed in 18L plastic boxes received single dose inoculum with the following concentrations: 1.21 x 106 CFU g-1 (equivalent to 75 g ha-1), 2.41 x 106 CFU g-1 (equivalent to 150 g ha-1), 4.82 x 106 CFU g-1 (equivalent to 300 g ha-1) and 1.61 x 107 CFU g-1 (equivalent to 1000 g ha-1), in addition to a control treatment with saline solution only. Organic matter content, total organic carbon (TOC) and oxidizable (OOC), total nitrogen (TN), ratios (TOC: N and OOC: N), clay content, pH in water, Shoemaker, McLean, Pratt index (SMP Index), phosphorus (P), potassium (K), calcium (Ca) and magnesium (Mg) contents, potential acidity (H + Al), cation exchange capacity (CEC) at pH 7.0, base saturation (V) and sum of bases (S). Results The values of OM showed significant difference, between the lowest values (treatments 75, 150 and 300 g ha-1) and the highest value, (control treatment). TOC, OOC, NT and their relationships (TOC: N and OOC: N) showed significant differences between the mean values of the control treatment and the other treatments. Conclusions The addition of Bacillus subtilis and B. licheniformis bacteria increased the decomposition rate of organic matter in sediments samples from Nile tilapia farms.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2020000100706&tlng=enaquaculturebioremediationBacillus subtilisBacillus licheniformissediment |
| spellingShingle | Gustavo Ruschel Lopes Hugo Mendes de Oliveira Gabriel Fernandes Alves de Jesus Maurício Laterça Martins Carlos Henrique Araújo de Miranda Gomes Thiago Soligo José Luiz Pedreira Mouriño Biological strategy to improve decomposition of organic matter in tilapia pond Acta Limnologica Brasiliensia aquaculture bioremediation Bacillus subtilis Bacillus licheniformis sediment |
| title | Biological strategy to improve decomposition of organic matter in tilapia pond |
| title_full | Biological strategy to improve decomposition of organic matter in tilapia pond |
| title_fullStr | Biological strategy to improve decomposition of organic matter in tilapia pond |
| title_full_unstemmed | Biological strategy to improve decomposition of organic matter in tilapia pond |
| title_short | Biological strategy to improve decomposition of organic matter in tilapia pond |
| title_sort | biological strategy to improve decomposition of organic matter in tilapia pond |
| topic | aquaculture bioremediation Bacillus subtilis Bacillus licheniformis sediment |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2020000100706&tlng=en |
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