Growth and gonadal development in diploid and triploid turbot (Scophthalmus maximus)
This study determined the effect of triploidy on the survival, growth and gonadal development of turbot from 6 to 48 months of age. From 6 to 24 months of age (first sexual maturity), survival was similar in both ploidies ( P N0.05). From 24 to 48 months of age, after the first sexual maturity, surv...
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Language: | English |
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Centro Oceanográfico de Vigo
2006
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Online Access: | http://hdl.handle.net/10508/7383 https://doi.org/10.1016/j.aquaculture.2005.05.010 |
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ftieo:oai:repositorio.ieo.es:10508/7383 2023-05-15T18:15:45+02:00 Growth and gonadal development in diploid and triploid turbot (Scophthalmus maximus) Cal, R. (Rosa) Vidal, S. (Sergio) Gómez-Ceruelo, M.C. (María Castora) Álvarez-Blázquez, B. (Blanca) Martínez, P. (Paulino) Piferrer, F. (Francesc) 2006 http://hdl.handle.net/10508/7383 https://doi.org/10.1016/j.aquaculture.2005.05.010 eng eng Centro Oceanográfico de Vigo http://www.sciencedirect.com/science/article/pii/S0044848605003455 0044-8486 http://hdl.handle.net/10508/7383 Aquaculture, 251. 2006: 99-108 doi:10.1016/j.aquaculture.2005.05.010 Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ openAccess CC-BY-NC-ND Triploidy Growth Gonadal Development Turbot (Scophthalmus maximus) Sex ratio article 2006 ftieo https://doi.org/10.1016/j.aquaculture.2005.05.010 2022-08-30T23:47:05Z This study determined the effect of triploidy on the survival, growth and gonadal development of turbot from 6 to 48 months of age. From 6 to 24 months of age (first sexual maturity), survival was similar in both ploidies ( P N0.05). From 24 to 48 months of age, after the first sexual maturity, survival was 91.9% in diploids and 100% in triploids, which did not exhibit the post-spawning-associated mortality. Growth was similar for both ploidies during the first year of life. After that, triploids grew significantly ( P b0.05) more that diploids, with more marked differences after each spawning season. From 24 to 48 months, the average weight difference between both ploidies was 11.4F1.9%, ranging from 4.3 to 23.0%. At 47 months of age, the biomass of triploids was 10.3% greater in total weight and 14.3% greater in eviscerated weight. Gonads of triploid males were similar to that of diploids, whereas in triploid females, they were significantly smaller and rudimentary. A histological analysis carried out at 47 months of age showed complete sterility of triploids in both sexes. Sex ratio was 1 male (M):0.6 female (F), for diploids, significantly ( P b0.05) different from 1:1, and 1 M:3.3 F for triploids, significantly ( P b0.05) different from 1:1 and from the diploids. Since females grow more than males, culture of triploids benefited from the high female ratio, which helped to reduce size dispersion. In addition, their sterility allowed better performance by avoiding the reduction in growth that takes place during the spawning periods. Together, these observations indicate that triploidy induction can be an interesting option for turbot aquaculture, especially for the production of large-size fish of more than 2 years of age. 2 Article in Journal/Newspaper Scophthalmus maximus Turbot Instituto Español de Oceanografía: e-IEO Aquaculture 251 1 99 108 |
institution |
Open Polar |
collection |
Instituto Español de Oceanografía: e-IEO |
op_collection_id |
ftieo |
language |
English |
topic |
Triploidy Growth Gonadal Development Turbot (Scophthalmus maximus) Sex ratio |
spellingShingle |
Triploidy Growth Gonadal Development Turbot (Scophthalmus maximus) Sex ratio Cal, R. (Rosa) Vidal, S. (Sergio) Gómez-Ceruelo, M.C. (María Castora) Álvarez-Blázquez, B. (Blanca) Martínez, P. (Paulino) Piferrer, F. (Francesc) Growth and gonadal development in diploid and triploid turbot (Scophthalmus maximus) |
topic_facet |
Triploidy Growth Gonadal Development Turbot (Scophthalmus maximus) Sex ratio |
description |
This study determined the effect of triploidy on the survival, growth and gonadal development of turbot from 6 to 48 months of age. From 6 to 24 months of age (first sexual maturity), survival was similar in both ploidies ( P N0.05). From 24 to 48 months of age, after the first sexual maturity, survival was 91.9% in diploids and 100% in triploids, which did not exhibit the post-spawning-associated mortality. Growth was similar for both ploidies during the first year of life. After that, triploids grew significantly ( P b0.05) more that diploids, with more marked differences after each spawning season. From 24 to 48 months, the average weight difference between both ploidies was 11.4F1.9%, ranging from 4.3 to 23.0%. At 47 months of age, the biomass of triploids was 10.3% greater in total weight and 14.3% greater in eviscerated weight. Gonads of triploid males were similar to that of diploids, whereas in triploid females, they were significantly smaller and rudimentary. A histological analysis carried out at 47 months of age showed complete sterility of triploids in both sexes. Sex ratio was 1 male (M):0.6 female (F), for diploids, significantly ( P b0.05) different from 1:1, and 1 M:3.3 F for triploids, significantly ( P b0.05) different from 1:1 and from the diploids. Since females grow more than males, culture of triploids benefited from the high female ratio, which helped to reduce size dispersion. In addition, their sterility allowed better performance by avoiding the reduction in growth that takes place during the spawning periods. Together, these observations indicate that triploidy induction can be an interesting option for turbot aquaculture, especially for the production of large-size fish of more than 2 years of age. 2 |
format |
Article in Journal/Newspaper |
author |
Cal, R. (Rosa) Vidal, S. (Sergio) Gómez-Ceruelo, M.C. (María Castora) Álvarez-Blázquez, B. (Blanca) Martínez, P. (Paulino) Piferrer, F. (Francesc) |
author_facet |
Cal, R. (Rosa) Vidal, S. (Sergio) Gómez-Ceruelo, M.C. (María Castora) Álvarez-Blázquez, B. (Blanca) Martínez, P. (Paulino) Piferrer, F. (Francesc) |
author_sort |
Cal, R. (Rosa) |
title |
Growth and gonadal development in diploid and triploid turbot (Scophthalmus maximus) |
title_short |
Growth and gonadal development in diploid and triploid turbot (Scophthalmus maximus) |
title_full |
Growth and gonadal development in diploid and triploid turbot (Scophthalmus maximus) |
title_fullStr |
Growth and gonadal development in diploid and triploid turbot (Scophthalmus maximus) |
title_full_unstemmed |
Growth and gonadal development in diploid and triploid turbot (Scophthalmus maximus) |
title_sort |
growth and gonadal development in diploid and triploid turbot (scophthalmus maximus) |
publisher |
Centro Oceanográfico de Vigo |
publishDate |
2006 |
url |
http://hdl.handle.net/10508/7383 https://doi.org/10.1016/j.aquaculture.2005.05.010 |
genre |
Scophthalmus maximus Turbot |
genre_facet |
Scophthalmus maximus Turbot |
op_relation |
http://www.sciencedirect.com/science/article/pii/S0044848605003455 0044-8486 http://hdl.handle.net/10508/7383 Aquaculture, 251. 2006: 99-108 doi:10.1016/j.aquaculture.2005.05.010 |
op_rights |
Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ openAccess |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1016/j.aquaculture.2005.05.010 |
container_title |
Aquaculture |
container_volume |
251 |
container_issue |
1 |
container_start_page |
99 |
op_container_end_page |
108 |
_version_ |
1766188963914055680 |