Growth and survival of the native oyster Crassostrea gasar cultured under different stocking densities in two grow-out systems in tropical climate
ABSTRACT Survival and growth of the native oyster Crassostrea gasar along the juvenile and adult phases were evaluated in three different stocking densities [low (D), medium (2D) and high (3D)] and in two grow-out systems (fixed and floating system). The fixed system consisted of a rack made with PV...
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Federal de Minas Gerais
2021-08-01
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| Series: | Arquivo Brasileiro de Medicina Veterinária e Zootecnia |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352021000400893&tlng=en |
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| author | A.R.G. Macedo S. Sühnel C.A.M. Cordeiro E.S.C.L. Nunes N.C. Sousa M.V.S. Couto E.M. Lopes J.A. Pereira Junior D.S. Sampaio A.P. Legat J.F.A. Legat P.E.G. Paixão R.Y. Fujimoto |
| author_facet | A.R.G. Macedo S. Sühnel C.A.M. Cordeiro E.S.C.L. Nunes N.C. Sousa M.V.S. Couto E.M. Lopes J.A. Pereira Junior D.S. Sampaio A.P. Legat J.F.A. Legat P.E.G. Paixão R.Y. Fujimoto |
| author_sort | A.R.G. Macedo |
| collection | DOAJ |
| description | ABSTRACT Survival and growth of the native oyster Crassostrea gasar along the juvenile and adult phases were evaluated in three different stocking densities [low (D), medium (2D) and high (3D)] and in two grow-out systems (fixed and floating system). The fixed system consisted of a rack made with PVC, fixed from the bottom with wood sticks. The floating system consisted of floating bags suspended by a rack made with PVC and maintained submerged from the seawater surface by eight floats. Survival and shell height of oysters cultured after 30, 60 and 90 days were registered in each phase and in each grow-out system. Results showed that the grow-out system did not affect survival and growth of C. gasar in the juvenile and adult phases. The tested densities affected the survival of oysters cultured over time in both phases but did not affect oyster growth. At times analyzed, it was observed positive growth in juvenile oysters grow after 90 days of culture. However, in the adult phase, no growth was observed after 90 days of culture. Oyster yield was higher in the density 3D, in both juvenile and adult phases. These findings contributed to the development of the oyster C. gasar culture. |
| first_indexed | 2024-04-11T16:55:07Z |
| format | Article |
| id | doaj.art-282ab75e4b744164b0a40a16568d4831 |
| institution | Directory Open Access Journal |
| issn | 1678-4162 |
| language | English |
| last_indexed | 2024-04-11T16:55:07Z |
| publishDate | 2021-08-01 |
| publisher | Universidade Federal de Minas Gerais |
| record_format | Article |
| series | Arquivo Brasileiro de Medicina Veterinária e Zootecnia |
| spelling | doaj.art-282ab75e4b744164b0a40a16568d48312022-12-22T04:13:17ZengUniversidade Federal de Minas GeraisArquivo Brasileiro de Medicina Veterinária e Zootecnia1678-41622021-08-0173489390110.1590/1678-4162-12002Growth and survival of the native oyster Crassostrea gasar cultured under different stocking densities in two grow-out systems in tropical climateA.R.G. Macedohttps://orcid.org/0000-0002-3667-2234S. Sühnelhttps://orcid.org/0000-0002-0501-8491C.A.M. Cordeirohttps://orcid.org/0000-0002-2698-6918E.S.C.L. Nuneshttps://orcid.org/0000-0003-2256-0212N.C. Sousahttps://orcid.org/0000-0002-7580-5650M.V.S. Coutohttps://orcid.org/0000-0001-9235-0996E.M. Lopeshttps://orcid.org/0000-0002-1165-5665J.A. Pereira Juniorhttps://orcid.org/0000-0001-6505-5676D.S. Sampaiohttps://orcid.org/0000-0002-2688-6001A.P. Legathttps://orcid.org/0000-0002-8395-877XJ.F.A. Legathttps://orcid.org/0000-0002-7179-7921P.E.G. Paixãohttps://orcid.org/0000-0002-8949-4232R.Y. Fujimotohttps://orcid.org/0000-0002-5039-4445ABSTRACT Survival and growth of the native oyster Crassostrea gasar along the juvenile and adult phases were evaluated in three different stocking densities [low (D), medium (2D) and high (3D)] and in two grow-out systems (fixed and floating system). The fixed system consisted of a rack made with PVC, fixed from the bottom with wood sticks. The floating system consisted of floating bags suspended by a rack made with PVC and maintained submerged from the seawater surface by eight floats. Survival and shell height of oysters cultured after 30, 60 and 90 days were registered in each phase and in each grow-out system. Results showed that the grow-out system did not affect survival and growth of C. gasar in the juvenile and adult phases. The tested densities affected the survival of oysters cultured over time in both phases but did not affect oyster growth. At times analyzed, it was observed positive growth in juvenile oysters grow after 90 days of culture. However, in the adult phase, no growth was observed after 90 days of culture. Oyster yield was higher in the density 3D, in both juvenile and adult phases. These findings contributed to the development of the oyster C. gasar culture.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352021000400893&tlng=enfloating systemfixed system, native oysterstocking density |
| spellingShingle | A.R.G. Macedo S. Sühnel C.A.M. Cordeiro E.S.C.L. Nunes N.C. Sousa M.V.S. Couto E.M. Lopes J.A. Pereira Junior D.S. Sampaio A.P. Legat J.F.A. Legat P.E.G. Paixão R.Y. Fujimoto Growth and survival of the native oyster Crassostrea gasar cultured under different stocking densities in two grow-out systems in tropical climate Arquivo Brasileiro de Medicina Veterinária e Zootecnia floating system fixed system, native oyster stocking density |
| title | Growth and survival of the native oyster Crassostrea gasar cultured under different stocking densities in two grow-out systems in tropical climate |
| title_full | Growth and survival of the native oyster Crassostrea gasar cultured under different stocking densities in two grow-out systems in tropical climate |
| title_fullStr | Growth and survival of the native oyster Crassostrea gasar cultured under different stocking densities in two grow-out systems in tropical climate |
| title_full_unstemmed | Growth and survival of the native oyster Crassostrea gasar cultured under different stocking densities in two grow-out systems in tropical climate |
| title_short | Growth and survival of the native oyster Crassostrea gasar cultured under different stocking densities in two grow-out systems in tropical climate |
| title_sort | growth and survival of the native oyster crassostrea gasar cultured under different stocking densities in two grow out systems in tropical climate |
| topic | floating system fixed system, native oyster stocking density |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352021000400893&tlng=en |
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