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The effect of rapid decompression on barotrauma and survival rate in swallowtail seaperch (Anthias anthias): defining protocols for mitigating surfacing mortality

2019Journal article Restricted access
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dc.contributor.authorSilva, Luís
dc.contributor.authorRosa, Rui Guedes
dc.contributor.authorCampino, Nelson
dc.contributor.authorMartins, Inês
dc.contributor.authorPinho, Mário Rui
dc.contributor.authorCorreia, João
dc.contributor.authorMorato, Telmo
dc.date.accessioned2020-07-03T13:12:07Z
dc.date.available2020-07-03T13:12:07Z
dc.date.issued2019
dc.description.abstractSwallowtail seaperch, Anthias anthias, is a popular fish in the public aquaria industry worldwide, but is subject to barotrauma and high mortality rates if an appropriate decompression profile is not used. Here, we analyze behavioral response to pressure reductions in swallowtail to define protocols for mitigating surfacing mortality. Four different pressure reduction rates were tested (15%, 25%, 35%, and 45%) in several lifting steps from an initial depth of 30 m. Decompression using this procedure was done with 12 and 24 h acclimation duration at each step allowing fish to recover from the pressure reduction. Fish condition was assessed based on swimming behavior, immediately after each new pressure reduction also after each acclimation time. Additionally, fish condition was monitored in a post-decompression trial for 14 days. During decompression, both conditions - initial and final - showed statistically significant differences in the reduction rates tested but showed no differences in acclimation times, and no interaction of the two factors. Neither pressure nor acclimation time affected the condition of the animal in post-decompression trials. Ascension steps near the surface are associated with larger decreases in neutrally buoyant fish compared to deeper decompression steps. Close monitoring of the effect of decompression on A. anthias in the control group, showed that a 29% reduction in pressure could indicate an approximate value of the free vertical range of this species, while swimbladder rupture can occur between 63 and 70% of pressure reduction. The optimal protocol for mitigating surfacing mortality combines two decompression profiles used in this experiment with a total duration of 84 h and comprising 4 lifting steps. The protocol developed to mitigate surfacing mortality was designed for conditions where oceanic cages or containers can be lifted gradually.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSilva, Luis & Rosa, Rui & Campino, Nelson & Martins, Inês & Pinho, Mário & Correia, João & Morato, Telmo. (2018). The effect of rapid decompression on barotrauma and survival rate in swallowtail seaperch (Anthias anthias): Defining protocols for mitigating surfacing mortality. Aquaculture. 498. 10.1016/j.aquaculture.2018.08.052.pt_PT
dc.identifier.doi10.1016/j.aquaculture.2018.08.052pt_PT
dc.identifier.issn0044-8486
dc.identifier.urihttp://hdl.handle.net/10400.8/4989
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectAquarium fishpt_PT
dc.subjectBuoyancypt_PT
dc.subjectSwimbladderpt_PT
dc.subjectPressure reductionpt_PT
dc.subjectMarine ornamentalpt_PT
dc.titleThe effect of rapid decompression on barotrauma and survival rate in swallowtail seaperch (Anthias anthias): defining protocols for mitigating surfacing mortalitypt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage412pt_PT
oaire.citation.startPage405pt_PT
oaire.citation.titleAquaculturept_PT
oaire.citation.volume498pt_PT
person.familyNameCorreia
person.givenNameJoão
person.identifier414226
person.identifier.ciencia-id281D-9F46-4EAE
person.identifier.orcid0000-0002-3613-5420
person.identifier.scopus-author-id7202364150
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationabeaad7a-8608-4693-8300-42ddd475fa59
relation.isAuthorOfPublication.latestForDiscoveryabeaad7a-8608-4693-8300-42ddd475fa59

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