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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Main Authors: Chung, Kyung S., Holt, G. Joan, Arnold, Connie R.
Format: Other/Unknown Material
Language:English
Published: Universidad de Costa Rica 2016
Subjects:
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
id ftunivcostarica:oai:https://www.kerwa.ucr.ac.cr:10669/27432
record_format openpolar
spelling 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
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