Comparative efficiency and yield in different systems and densities at the nursery culture phase of the oyster Crassostrea gigas in southern Brazil
This study was conducted to compare different aquaculture systems and seed densities for the nursery phase of Crassostrea gigas in Brazil. Small oyster seeds (2 mm in height) reared in three nursery systems (same area/floor), a lantern net, a bouncing bucket or a floating box were compared with thre...
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Instituto de Zootecnia
2014
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ftdoajarticles:oai:doaj.org/article:c2361f5bfd9545819b0979528ac17b3d 2023-05-15T15:57:44+02:00 Comparative efficiency and yield in different systems and densities at the nursery culture phase of the oyster Crassostrea gigas in southern Brazil Fernando Magalhães Ferreira Jaime Fernando Ferreira 2014-02-01T00:00:00Z https://doi.org/10.17523/bia.v71n2p114 https://doaj.org/article/c2361f5bfd9545819b0979528ac17b3d EN ES PT eng spa por Instituto de Zootecnia http://revistas.bvs-vet.org.br/bia/article/view/22856 https://doaj.org/toc/1981-4100 1981-4100 doi:10.17523/bia.v71n2p114 https://doaj.org/article/c2361f5bfd9545819b0979528ac17b3d Boletim de Indústria Animal, Vol 71, Iss 2, Pp 114-121 (2014) Crassostrea gigas growth nursery production seeds Animal culture SF1-1100 article 2014 ftdoajarticles https://doi.org/10.17523/bia.v71n2p114 2022-12-31T03:38:27Z This study was conducted to compare different aquaculture systems and seed densities for the nursery phase of Crassostrea gigas in Brazil. Small oyster seeds (2 mm in height) reared in three nursery systems (same area/floor), a lantern net, a bouncing bucket or a floating box were compared with three initial stocking densities (50, 100 and 200 mL of seeds/system floor). As density increased, there was a significant decline in seed growth and yield, mainly in the lantern nets (P=0.0002). Better yields were observed in the box (P=0.005) and bucket systems (P=0.02) under densities of 50 and 100 mL. However, at the highest density, the nursery box system had the highest seed yield when compared to the lantern net and bucket systems (P=0.003). The results showed that the floating box was the most efficient system tested with a survival of 54% at a density of 100 mL. This was more than twice the survival for the same volumes used in the nursery lantern nets (24%), which was the most common culture method in Brazil prior to this experiment (2002). An additional advantage is the reduced cost of starting with 2.0 mm seeds that cost 50% less than the usual 4.0 to 8.0 mm seeds. These results showed the efficiency of the floating box system, which is currently used by over 90% of oyster producers in Brazil. Article in Journal/Newspaper Crassostrea gigas Directory of Open Access Journals: DOAJ Articles Boletim de Indústria Animal 71 2 114 121 |
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Directory of Open Access Journals: DOAJ Articles |
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English Spanish Portuguese |
topic |
Crassostrea gigas growth nursery production seeds Animal culture SF1-1100 |
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Crassostrea gigas growth nursery production seeds Animal culture SF1-1100 Fernando Magalhães Ferreira Jaime Fernando Ferreira Comparative efficiency and yield in different systems and densities at the nursery culture phase of the oyster Crassostrea gigas in southern Brazil |
topic_facet |
Crassostrea gigas growth nursery production seeds Animal culture SF1-1100 |
description |
This study was conducted to compare different aquaculture systems and seed densities for the nursery phase of Crassostrea gigas in Brazil. Small oyster seeds (2 mm in height) reared in three nursery systems (same area/floor), a lantern net, a bouncing bucket or a floating box were compared with three initial stocking densities (50, 100 and 200 mL of seeds/system floor). As density increased, there was a significant decline in seed growth and yield, mainly in the lantern nets (P=0.0002). Better yields were observed in the box (P=0.005) and bucket systems (P=0.02) under densities of 50 and 100 mL. However, at the highest density, the nursery box system had the highest seed yield when compared to the lantern net and bucket systems (P=0.003). The results showed that the floating box was the most efficient system tested with a survival of 54% at a density of 100 mL. This was more than twice the survival for the same volumes used in the nursery lantern nets (24%), which was the most common culture method in Brazil prior to this experiment (2002). An additional advantage is the reduced cost of starting with 2.0 mm seeds that cost 50% less than the usual 4.0 to 8.0 mm seeds. These results showed the efficiency of the floating box system, which is currently used by over 90% of oyster producers in Brazil. |
format |
Article in Journal/Newspaper |
author |
Fernando Magalhães Ferreira Jaime Fernando Ferreira |
author_facet |
Fernando Magalhães Ferreira Jaime Fernando Ferreira |
author_sort |
Fernando Magalhães Ferreira |
title |
Comparative efficiency and yield in different systems and densities at the nursery culture phase of the oyster Crassostrea gigas in southern Brazil |
title_short |
Comparative efficiency and yield in different systems and densities at the nursery culture phase of the oyster Crassostrea gigas in southern Brazil |
title_full |
Comparative efficiency and yield in different systems and densities at the nursery culture phase of the oyster Crassostrea gigas in southern Brazil |
title_fullStr |
Comparative efficiency and yield in different systems and densities at the nursery culture phase of the oyster Crassostrea gigas in southern Brazil |
title_full_unstemmed |
Comparative efficiency and yield in different systems and densities at the nursery culture phase of the oyster Crassostrea gigas in southern Brazil |
title_sort |
comparative efficiency and yield in different systems and densities at the nursery culture phase of the oyster crassostrea gigas in southern brazil |
publisher |
Instituto de Zootecnia |
publishDate |
2014 |
url |
https://doi.org/10.17523/bia.v71n2p114 https://doaj.org/article/c2361f5bfd9545819b0979528ac17b3d |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_source |
Boletim de Indústria Animal, Vol 71, Iss 2, Pp 114-121 (2014) |
op_relation |
http://revistas.bvs-vet.org.br/bia/article/view/22856 https://doaj.org/toc/1981-4100 1981-4100 doi:10.17523/bia.v71n2p114 https://doaj.org/article/c2361f5bfd9545819b0979528ac17b3d |
op_doi |
https://doi.org/10.17523/bia.v71n2p114 |
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Boletim de Indústria Animal |
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71 |
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2 |
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114 |
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121 |
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