Influence of stocking density on growth, metabolism and stress of thick- lipped grey mullet (Chelon labrosus) juveniles

Physiological responses to different stocking densities and their subsequent effects on growth rate, energy metabolism and endocrine system were assessed in thick-lipped grey mullet (Chelon labrosus) juveniles. Three different groups of 150 fish (0.383 ± 0.020 g body mass, 101 days post-hatching (dp...

Full description

Bibliographic Details
Authors: Heras, Verónica de las, Martos-Sitcha, Juan Antonio, Yúfera, Manuel, Mancera, Juan Miguel, Martínez-Rodríguez, Gonzalo
Format: article
Status:Versión aceptada para publicación
Publication Date:2015
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/168555
Online Access:http://hdl.handle.net/10261/168555
Access Level:Open access
Keyword:Chelon labrosus
Growth hormone
IGF-I
Metabolites
Stocking density
Stress
id ES_fb9569ee3208af7d2a47e827c82cf65e
oai_identifier_str oai:digital.csic.es:10261/168555
network_acronym_str ES
network_name_str España
repository_id_str
spelling Influence of stocking density on growth, metabolism and stress of thick- lipped grey mullet (Chelon labrosus) juvenilesHeras, Verónica de lasMartos-Sitcha, Juan AntonioYúfera, ManuelMancera, Juan MiguelMartínez-Rodríguez, GonzaloChelon labrosusGrowth hormoneIGF-IMetabolitesStocking densityStressPhysiological responses to different stocking densities and their subsequent effects on growth rate, energy metabolism and endocrine system were assessed in thick-lipped grey mullet (Chelon labrosus) juveniles. Three different groups of 150 fish (0.383 ± 0.020 g body mass, 101 days post-hatching (dph)) were maintained in triplicate under three different stocking densities: 0.7, 2.0 and 6.7 kg·m− 3. All individuals were sampled at days 0, 20, 45 and 75 to obtain biometric parameters, while 25–30 specimens from each treatment were sampled for the plasma, liver and pituitary collection at the end of the experiment (75 days). The lowest growth increase, both in body mass and total length, was shown in the group held at the highest stocking density (6.7 kg·m− 3), just by the end of the experiment (176 dph). Moreover, higher plasma cortisol and glucose values were obtained in the group stocked at 0.7 kg·m− 3, whereas individuals maintained under the maximum density (6.7 kg·m− 3) had the highest hepatic glycogen and lowest glucose content. In addition, growth hormone (GH) and insulin-like growth factor (IGF-I) gene expression increased in the group maintained under the highest stocking condition. Our results indicate that C. labrosus juveniles activated both Hypothalamus–Pituitary–Interrenal (cortisol) and somatotropic (GH/IGF-I) axes to modulate metabolic and stress pathways in specimens held at different stocking densities to compensate their growth rates.Study funded by project “Optimización del proceso de maduración y desove del mugílido Chelon labrosus” co-financed by Ministry of Education (Spain) and European Social Fund to GM-R, project AGL2010-14876 from Ministry of Science and Innovation (Spain) to JMM, and by project Consolider-Ingenio 2010 (CSD2007-00002) to MY. V de las H was supported by an employment contract from the first project referenced, and JAM-S by a PhD fellowship (FPU, Reference AP2008-01194) from Ministry of Education (Spain).Peer reviewedElsevierMinisterio de Educación, Cultura y Deporte (España)European CommissionMinisterio de Ciencia e Innovación (España)Ministerio de Educación y Ciencia (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201820182015info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/168555reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1016/j.aquaculture.2015.05.033Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1685552026-05-22T06:33:51Z
dc.title.none.fl_str_mv Influence of stocking density on growth, metabolism and stress of thick- lipped grey mullet (Chelon labrosus) juveniles
title Influence of stocking density on growth, metabolism and stress of thick- lipped grey mullet (Chelon labrosus) juveniles
spellingShingle Influence of stocking density on growth, metabolism and stress of thick- lipped grey mullet (Chelon labrosus) juveniles
Heras, Verónica de las
Chelon labrosus
Growth hormone
IGF-I
Metabolites
Stocking density
Stress
title_short Influence of stocking density on growth, metabolism and stress of thick- lipped grey mullet (Chelon labrosus) juveniles
title_full Influence of stocking density on growth, metabolism and stress of thick- lipped grey mullet (Chelon labrosus) juveniles
title_fullStr Influence of stocking density on growth, metabolism and stress of thick- lipped grey mullet (Chelon labrosus) juveniles
title_full_unstemmed Influence of stocking density on growth, metabolism and stress of thick- lipped grey mullet (Chelon labrosus) juveniles
title_sort Influence of stocking density on growth, metabolism and stress of thick- lipped grey mullet (Chelon labrosus) juveniles
dc.creator.none.fl_str_mv Heras, Verónica de las
Martos-Sitcha, Juan Antonio
Yúfera, Manuel
Mancera, Juan Miguel
Martínez-Rodríguez, Gonzalo
author Heras, Verónica de las
author_facet Heras, Verónica de las
Martos-Sitcha, Juan Antonio
Yúfera, Manuel
Mancera, Juan Miguel
Martínez-Rodríguez, Gonzalo
author_role author
author2 Martos-Sitcha, Juan Antonio
Yúfera, Manuel
Mancera, Juan Miguel
Martínez-Rodríguez, Gonzalo
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Educación, Cultura y Deporte (España)
European Commission
Ministerio de Ciencia e Innovación (España)
Ministerio de Educación y Ciencia (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Chelon labrosus
Growth hormone
IGF-I
Metabolites
Stocking density
Stress
topic Chelon labrosus
Growth hormone
IGF-I
Metabolites
Stocking density
Stress
description Physiological responses to different stocking densities and their subsequent effects on growth rate, energy metabolism and endocrine system were assessed in thick-lipped grey mullet (Chelon labrosus) juveniles. Three different groups of 150 fish (0.383 ± 0.020 g body mass, 101 days post-hatching (dph)) were maintained in triplicate under three different stocking densities: 0.7, 2.0 and 6.7 kg·m− 3. All individuals were sampled at days 0, 20, 45 and 75 to obtain biometric parameters, while 25–30 specimens from each treatment were sampled for the plasma, liver and pituitary collection at the end of the experiment (75 days). The lowest growth increase, both in body mass and total length, was shown in the group held at the highest stocking density (6.7 kg·m− 3), just by the end of the experiment (176 dph). Moreover, higher plasma cortisol and glucose values were obtained in the group stocked at 0.7 kg·m− 3, whereas individuals maintained under the maximum density (6.7 kg·m− 3) had the highest hepatic glycogen and lowest glucose content. In addition, growth hormone (GH) and insulin-like growth factor (IGF-I) gene expression increased in the group maintained under the highest stocking condition. Our results indicate that C. labrosus juveniles activated both Hypothalamus–Pituitary–Interrenal (cortisol) and somatotropic (GH/IGF-I) axes to modulate metabolic and stress pathways in specimens held at different stocking densities to compensate their growth rates.
publishDate 2015
dc.date.none.fl_str_mv 2015
2018
2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/168555
url http://hdl.handle.net/10261/168555
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1016/j.aquaculture.2015.05.033
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869425342614077440
score 15,812429

Similar Items