Adapting to the wild: the case of aquaculture-produced and released meagres Argyrosomus regius
The performance of juvenile Argyrosomus regius released off the coast of Mallorca Island (Balearic Islands, Spain) was assessed by comparing the body condition, stable isotope signature and stomach contents of aquaculture-produced A. regius that had been released, fished and returned by fishermen af...
| Autores: | , , , , , |
|---|---|
| Tipo de documento: | artigo |
| Data de publicação: | 2014 |
| País: | España |
| Recursos: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositório: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/311592 |
| Acesso em linha: | http://hdl.handle.net/10261/311592 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Centro Oceanográfico de Baleares condition index Diet restocking stable isotopes time at liberty |
| id |
ES_ee7fd9b34f0fb0bfb83d6f1b76e1554d |
|---|---|
| oai_identifier_str |
oai:digital.csic.es:10261/311592 |
| network_acronym_str |
ES |
| network_name_str |
España |
| repository_id_str |
|
| spelling |
Adapting to the wild: the case of aquaculture-produced and released meagres Argyrosomus regiusGil, María MarPalmer, MiquelGrau Jofre, Antoni MaríaDeudero, SaludAlconchel, J.I.Catalán, Ignacio AlbertoCentro Oceanográfico de Balearescondition indexCentro Oceanográfico de BalearesDietrestockingstable isotopestime at libertyThe performance of juvenile Argyrosomus regius released off the coast of Mallorca Island (Balearic Islands, Spain) was assessed by comparing the body condition, stable isotope signature and stomach contents of aquaculture-produced A. regius that had been released, fished and returned by fishermen after spending from a few days to >1 year at liberty with A. regius reared under controlled conditions on two contrasting diets (well-fed and unfed). During the first 40 days of the experiment, the condition index (KR) of the returned A. regius and the unfed A. regius followed the same decreasing trend. Thereafter, the KR values of the returned A. regius were significantly higher than those of the unfed A. regius but never reached the values of well-fed A. regius. The δ13C signal of the returned A. regius clearly increased (in comparison with the well-fed A. regius) after they had spent a few months at liberty. The temporal pattern depicted by the stable isotopes and the most likely prey composition inferred from this pattern strongly suggest a shift in diet. The stomach contents of the returned A. regius that had spent <100 days at liberty consisted almost exclusively of decapods. The diet of the few returned A. regius that had spent >100 days at liberty consisted entirely of fishes. Wild A. regius from the remaining fishery on the Spanish coast exhibited the same ontogenetic diet shift from invertebrates to fishes, but at a smaller size threshold. Overall, the results demonstrated that culture-reared A. regius experience adverse conditions during the first days after release into the wild but that at least some A. regius are able to adapt to the natural environment after a few months at liberty.Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202320232014info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/311592reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://onlinelibrary.wiley.com/doi/10.1111/jfb.12241Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3115922026-05-22T06:33:51Z |
| dc.title.none.fl_str_mv |
Adapting to the wild: the case of aquaculture-produced and released meagres Argyrosomus regius |
| title |
Adapting to the wild: the case of aquaculture-produced and released meagres Argyrosomus regius |
| spellingShingle |
Adapting to the wild: the case of aquaculture-produced and released meagres Argyrosomus regius Gil, María Mar Centro Oceanográfico de Baleares condition index Centro Oceanográfico de Baleares Diet restocking stable isotopes time at liberty |
| title_short |
Adapting to the wild: the case of aquaculture-produced and released meagres Argyrosomus regius |
| title_full |
Adapting to the wild: the case of aquaculture-produced and released meagres Argyrosomus regius |
| title_fullStr |
Adapting to the wild: the case of aquaculture-produced and released meagres Argyrosomus regius |
| title_full_unstemmed |
Adapting to the wild: the case of aquaculture-produced and released meagres Argyrosomus regius |
| title_sort |
Adapting to the wild: the case of aquaculture-produced and released meagres Argyrosomus regius |
| dc.creator.none.fl_str_mv |
Gil, María Mar Palmer, Miquel Grau Jofre, Antoni María Deudero, Salud Alconchel, J.I. Catalán, Ignacio Alberto |
| author |
Gil, María Mar |
| author_facet |
Gil, María Mar Palmer, Miquel Grau Jofre, Antoni María Deudero, Salud Alconchel, J.I. Catalán, Ignacio Alberto |
| author_role |
author |
| author2 |
Palmer, Miquel Grau Jofre, Antoni María Deudero, Salud Alconchel, J.I. Catalán, Ignacio Alberto |
| author2_role |
author author author author author |
| dc.contributor.none.fl_str_mv |
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] |
| dc.subject.none.fl_str_mv |
Centro Oceanográfico de Baleares condition index Centro Oceanográfico de Baleares Diet restocking stable isotopes time at liberty |
| topic |
Centro Oceanográfico de Baleares condition index Centro Oceanográfico de Baleares Diet restocking stable isotopes time at liberty |
| description |
The performance of juvenile Argyrosomus regius released off the coast of Mallorca Island (Balearic Islands, Spain) was assessed by comparing the body condition, stable isotope signature and stomach contents of aquaculture-produced A. regius that had been released, fished and returned by fishermen after spending from a few days to >1 year at liberty with A. regius reared under controlled conditions on two contrasting diets (well-fed and unfed). During the first 40 days of the experiment, the condition index (KR) of the returned A. regius and the unfed A. regius followed the same decreasing trend. Thereafter, the KR values of the returned A. regius were significantly higher than those of the unfed A. regius but never reached the values of well-fed A. regius. The δ13C signal of the returned A. regius clearly increased (in comparison with the well-fed A. regius) after they had spent a few months at liberty. The temporal pattern depicted by the stable isotopes and the most likely prey composition inferred from this pattern strongly suggest a shift in diet. The stomach contents of the returned A. regius that had spent <100 days at liberty consisted almost exclusively of decapods. The diet of the few returned A. regius that had spent >100 days at liberty consisted entirely of fishes. Wild A. regius from the remaining fishery on the Spanish coast exhibited the same ontogenetic diet shift from invertebrates to fishes, but at a smaller size threshold. Overall, the results demonstrated that culture-reared A. regius experience adverse conditions during the first days after release into the wild but that at least some A. regius are able to adapt to the natural environment after a few months at liberty. |
| publishDate |
2014 |
| dc.date.none.fl_str_mv |
2014 2023 2023 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article http://purl.org/coar/resource_type/c_6501 |
| format |
article |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10261/311592 |
| url |
http://hdl.handle.net/10261/311592 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
https://onlinelibrary.wiley.com/doi/10.1111/jfb.12241 Sí |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess |
| eu_rights_str_mv |
openAccess |
| 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_ |
1869423676104900608 |
| score |
15,812429 |