Repository logo
 
Publication

Steroids accumulate in the rearing water of commercial recirculating aquaculture systems

2014-07-23Journal article Open access
Simple item page
dc.contributor.authorMota, Vasco
dc.contributor.authorMartins, Catarina I. M.
dc.contributor.authorEding, Ep
dc.contributor.authorCanario, Adelino V. M.
dc.contributor.authorVerreth, Johan
dc.date.accessioned2014-09-18T09:53:12Z
dc.date.available2015-07-23T00:30:15Z
dc.date.issued2014-07-23
dc.description.abstractLittle information is available on steroid concentrations in the rearing water of aquaculture systemsand whether they accumulate in recirculating aquaculture systems (RAS). Therefore this study aimedat determining (1) the concentrations and variation of cortisol and sex steroids in RAS, (2) the con-tribution of fish rearing conditions to steroid concentrations in seven commercial RAS. Each RAS wassampled twice at three different points: (1) make-up water; (2) influent and (3) effluent of the rear-ing unit. The results showed significant higher steroid concentrations in the influent and effluent whencompared with the make-up water. On average cortisol concentration was 15.7% higher in the efflu-ent when compared with the influent. Mean steroid concentrations in the rearing unit effluent variedbetween: 3.8–217.0 ng/L for cortisol, 3–12.5 ng/L for testosterone, 0.9–7.1 ng/L for 11-ketoteststerone and1.8–12.8 ng/L for 17,20 -dihydroxypregn-4-en-3-one. Stocking density, Total Ammonia-Nitrogen con-centration and orthophosphate-P concentration (a measure of make-up water usage) showed a positivecorrelation with sex steroids in the water. The steroid concentrations from the present study were ordersof magnitude lower than initial estimations indicating a water treatment efficiency of >99%. The resultssuggest that an intensification of fish production through decrease of make-up water use and increaseof stocking density will lead to a build-up of steroids in the water. Although intensification is critical forthe economical success of RAS, this ultimately could affect fish performance as steroids accumulates inthe water of RAS at levels that can potentially be detected by some fish species.por
dc.description.sponsorshipInstitution FCT – Fundação para a Ciência e Tecnologiapor
dc.identifier.citationVasco C. Mota, Catarina I.M. Martins, Ep H. Eding, Adelino V.M. Canário, Johan A.J. Verreth. Steroids accumulate in the rearing water of commercial recirculating aquaculture systems, 2014, Aquaculture Engineering, 62., 9-16, http://dx.doi.org/10.1016/j.aquaeng.2014.07.004por
dc.identifier.doihttp://dx.doi.org/10.1016/j.aquaeng.2014.07.004
dc.identifier.issn0144-8609
dc.identifier.otherAUT: ACA00258;
dc.identifier.urihttp://hdl.handle.net/10400.1/4980
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevierpor
dc.relationTHE ACCUMULATION OF STEROIDS IN THE WATER OF RECIRCULATING AQUACULTURE SYSTEMS
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0144860914000764por
dc.subjectSteroids in waterpor
dc.subjectFishpor
dc.subjectCortisolpor
dc.subjectTestosteronepor
dc.subject11-Ketotestosteronepor
dc.subject17,20 -Dihydroxypregn-4-en-3-onepor
dc.titleSteroids accumulate in the rearing water of commercial recirculating aquaculture systemspor
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleTHE ACCUMULATION OF STEROIDS IN THE WATER OF RECIRCULATING AQUACULTURE SYSTEMS
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/FARH/SFRH%2FBD%2F65673%2F2009/PT
oaire.citation.endPage16por
oaire.citation.startPage9por
oaire.citation.titleAquaculture Engineeringpor
oaire.citation.volume62por
oaire.fundingStreamFARH
person.familyNameMota
person.familyNameCanario
person.givenNameVasco
person.givenNameAdelino
person.identifier143624
person.identifier.ciencia-id1F1E-D3B3-F804
person.identifier.orcid0000-0002-9718-6440
person.identifier.orcid0000-0002-6244-6468
person.identifier.ridE-2905-2019
person.identifier.ridC-7942-2009
person.identifier.scopus-author-id56255184300
person.identifier.scopus-author-id56568523700
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication5eb995f3-5056-4564-b46a-4a6acf1d12c7
relation.isAuthorOfPublication5f6e51ee-9113-469e-8b9e-f30f2d452521
relation.isAuthorOfPublication.latestForDiscovery5eb995f3-5056-4564-b46a-4a6acf1d12c7
relation.isProjectOfPublicationfad7d238-adf0-408f-8750-f02ff20f7364
relation.isProjectOfPublication.latestForDiscoveryfad7d238-adf0-408f-8750-f02ff20f7364

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Steroids accumulate in the rearing water of commercial recirculating aquaculture systems.pdf
Size:
617.98 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.61 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

CCM2-Artigos (em revistas ou actas indexadas)