Influence of saHnity and food deprivation on growth and RNA-DNA ratio in red drum Sciaenops ocellatus (Pisces: Sciaenidae)
Juvenile Red drum Sciaenops ocellatus held in 30 ppl natural seawater or fresh water were starved or fed ad libítum for su weeks, and sampled each week for growth and for determination of RNA, DNA, and protein contents of white and red muscles and liver. Specific growth Tate and condition factor wer...
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Universidad de Costa Rica
2016
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Online Access: | https://hdl.handle.net/10669/27432 http://revistas.ucr.ac.cr/index.php/rbt/article/view/23350 https://doi.org/10.15517/rbt.v41i2.23350 |
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ftunivcostarica:oai:https://www.kerwa.ucr.ac.cr:10669/27432 2023-05-15T18:06:04+02:00 Influence of saHnity and food deprivation on growth and RNA-DNA ratio in red drum Sciaenops ocellatus (Pisces: Sciaenidae) Chung, Kyung S. Holt, G. Joan Arnold, Connie R. 2016-05-03T15:33:14Z application/pdf https://hdl.handle.net/10669/27432 http://revistas.ucr.ac.cr/index.php/rbt/article/view/23350 https://doi.org/10.15517/rbt.v41i2.23350 eng eng Universidad de Costa Rica http://revistas.ucr.ac.cr/index.php/rbt/article/view/23350 doi:10.15517/rbt.v41i2.23350 https://hdl.handle.net/10669/27432 Copyright (c) 2016 Revista de Biología Tropical/International Journal of Tropical Biology and Conservation Revista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol. 41 (2) August 1993; 187-195 Revista Biología Tropical; Vol. 41 (2) August 1993; 187-195 2215-2075 0034-7744 10.15517/rbt.v41i2 artículo científico 2016 ftunivcostarica https://doi.org/10.15517/rbt.v41i2.23350 https://doi.org/10.15517/rbt.v41i2 2022-10-30T05:39:51Z Juvenile Red drum Sciaenops ocellatus held in 30 ppl natural seawater or fresh water were starved or fed ad libítum for su weeks, and sampled each week for growth and for determination of RNA, DNA, and protein contents of white and red muscles and liver. Specific growth Tate and condition factor were used lo compare changes in nucleic acid and protein concentrations in fish tissues. Salinity had liule effect on growth, while starvalÍon caused a significant reducuon in all growth parameters and in the RNA-DNA ratio after three weeks. The RNA-DNA ralÍos of red and white muscles of the fed fish were greater than those of the starved fish and also were related to specific growth Tate and fish condition factor. Nucleic acid concentralÍons in liver were highly variable. Since wrute muscle predorninates and is more easily sampled in red drum than red muscle, and because it has less variable RNA-DNA ratios than liver, it is the tissue recornmended for nucleic acid analysis of physiological condition and growth. Se cultivaron los juveniles del pez rojo, Sciaenops ocellatus, durante seis semanas en aguas de mar natural al 30 ppm y en agua dulce, alimentando unos ad libitum y manteniendootros en ayunas, para analizar ARN, ADN, y proteínas del músculo blanco, rojo e hígado cada semana. La tasa de crecimiento específico y el factor de condición fueron los parámetros usados para comparar los cambios de los ácidos nucleicos y proteínas en tejidos del pez. La salinidad presentó poco efecto sobre el crecimiento, mientras que la inanición causó una disminución significativa en todos los parámetros de crecimiento y en la relación de ARN ADN después de tres semanas. La tasa ARN ADN en el músculo blanco y rojo de los peces alimentados fue mayor y también estuvo en relación con la tasa de crecimiento específico y el factor de condición. Las concentraciones de ácidos nucleicos de hígado fueron altamente variables. La musculatura blanca es dominante, más fácil de obtener que la roja, y menos variable en la tasa ARN-ADN que el hígado; ... Other/Unknown Material Red drum Sciaenops ocellatus Universidad de Costa Rica: Repositorio Kérwá Blanco ENVELOPE(-55.233,-55.233,-61.250,-61.250) Roja ENVELOPE(-67.150,-67.150,-68.317,-68.317) |
institution |
Open Polar |
collection |
Universidad de Costa Rica: Repositorio Kérwá |
op_collection_id |
ftunivcostarica |
language |
English |
description |
Juvenile Red drum Sciaenops ocellatus held in 30 ppl natural seawater or fresh water were starved or fed ad libítum for su weeks, and sampled each week for growth and for determination of RNA, DNA, and protein contents of white and red muscles and liver. Specific growth Tate and condition factor were used lo compare changes in nucleic acid and protein concentrations in fish tissues. Salinity had liule effect on growth, while starvalÍon caused a significant reducuon in all growth parameters and in the RNA-DNA ratio after three weeks. The RNA-DNA ralÍos of red and white muscles of the fed fish were greater than those of the starved fish and also were related to specific growth Tate and fish condition factor. Nucleic acid concentralÍons in liver were highly variable. Since wrute muscle predorninates and is more easily sampled in red drum than red muscle, and because it has less variable RNA-DNA ratios than liver, it is the tissue recornmended for nucleic acid analysis of physiological condition and growth. Se cultivaron los juveniles del pez rojo, Sciaenops ocellatus, durante seis semanas en aguas de mar natural al 30 ppm y en agua dulce, alimentando unos ad libitum y manteniendootros en ayunas, para analizar ARN, ADN, y proteínas del músculo blanco, rojo e hígado cada semana. La tasa de crecimiento específico y el factor de condición fueron los parámetros usados para comparar los cambios de los ácidos nucleicos y proteínas en tejidos del pez. La salinidad presentó poco efecto sobre el crecimiento, mientras que la inanición causó una disminución significativa en todos los parámetros de crecimiento y en la relación de ARN ADN después de tres semanas. La tasa ARN ADN en el músculo blanco y rojo de los peces alimentados fue mayor y también estuvo en relación con la tasa de crecimiento específico y el factor de condición. Las concentraciones de ácidos nucleicos de hígado fueron altamente variables. La musculatura blanca es dominante, más fácil de obtener que la roja, y menos variable en la tasa ARN-ADN que el hígado; ... |
format |
Other/Unknown Material |
author |
Chung, Kyung S. Holt, G. Joan Arnold, Connie R. |
spellingShingle |
Chung, Kyung S. Holt, G. Joan Arnold, Connie R. Influence of saHnity and food deprivation on growth and RNA-DNA ratio in red drum Sciaenops ocellatus (Pisces: Sciaenidae) |
author_facet |
Chung, Kyung S. Holt, G. Joan Arnold, Connie R. |
author_sort |
Chung, Kyung S. |
title |
Influence of saHnity and food deprivation on growth and RNA-DNA ratio in red drum Sciaenops ocellatus (Pisces: Sciaenidae) |
title_short |
Influence of saHnity and food deprivation on growth and RNA-DNA ratio in red drum Sciaenops ocellatus (Pisces: Sciaenidae) |
title_full |
Influence of saHnity and food deprivation on growth and RNA-DNA ratio in red drum Sciaenops ocellatus (Pisces: Sciaenidae) |
title_fullStr |
Influence of saHnity and food deprivation on growth and RNA-DNA ratio in red drum Sciaenops ocellatus (Pisces: Sciaenidae) |
title_full_unstemmed |
Influence of saHnity and food deprivation on growth and RNA-DNA ratio in red drum Sciaenops ocellatus (Pisces: Sciaenidae) |
title_sort |
influence of sahnity and food deprivation on growth and rna-dna ratio in red drum sciaenops ocellatus (pisces: sciaenidae) |
publisher |
Universidad de Costa Rica |
publishDate |
2016 |
url |
https://hdl.handle.net/10669/27432 http://revistas.ucr.ac.cr/index.php/rbt/article/view/23350 https://doi.org/10.15517/rbt.v41i2.23350 |
long_lat |
ENVELOPE(-55.233,-55.233,-61.250,-61.250) ENVELOPE(-67.150,-67.150,-68.317,-68.317) |
geographic |
Blanco Roja |
geographic_facet |
Blanco Roja |
genre |
Red drum Sciaenops ocellatus |
genre_facet |
Red drum Sciaenops ocellatus |
op_source |
Revista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol. 41 (2) August 1993; 187-195 Revista Biología Tropical; Vol. 41 (2) August 1993; 187-195 2215-2075 0034-7744 10.15517/rbt.v41i2 |
op_relation |
http://revistas.ucr.ac.cr/index.php/rbt/article/view/23350 doi:10.15517/rbt.v41i2.23350 https://hdl.handle.net/10669/27432 |
op_rights |
Copyright (c) 2016 Revista de Biología Tropical/International Journal of Tropical Biology and Conservation |
op_doi |
https://doi.org/10.15517/rbt.v41i2.23350 https://doi.org/10.15517/rbt.v41i2 |
_version_ |
1766177647869558784 |