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The digestive tract of cephalopods: toward non-invasive in vivo monitoring of its physiology

2017Journal article Open access
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dc.contributor.authorPonte, Giovanna
dc.contributor.authorSykes, Antonio V.
dc.contributor.authorCooke, Gavan M.
dc.contributor.authorAlmansa, Eduardo
dc.contributor.authorAndrews, Paul L. R.
dc.date.accessioned2018-12-07T14:53:27Z
dc.date.available2018-12-07T14:53:27Z
dc.date.issued2017
dc.description.abstractEnsuring the health and welfare of animals in research is paramount, and the normal functioning of the digestive tract is essential for both. Here we critically assess non-or minimally-invasive techniques which may be used to assess a cephalopod's digestive tract functionality to inform health monitoring. We focus on: (i) predatory response as an indication of appetitive drive; (ii) body weight assessment and interpretation of deviations (e.g., digestive gland weight loss is disproportionate to body weight loss in starvation); (iii) oro-anal transit time requiring novel, standardized techniques to facilitate comparative studies of species and diets; (iv) defecation frequency and analysis of fecal color (diet dependent) and composition (parasites, biomarkers, and cytology); (v) digestive tract endoscopy, but passage of the esophagus through the brain is a technical challenge; (vi) high resolution ultrasound that offers the possibility of imaging the morphology of the digestive tract (e.g., food distribution, indigestible residues, obstruction) and recording contractile activity; (vii) needle biopsy (with ultrasound guidance) as a technique for investigating digestive gland biochemistry and pathology without the death of the animal. These techniques will inform the development of physiologically based assessments of health and the impact of experimental procedures. Although intended for use in the laboratory they are equally applicable to cephalopods in public display and aquaculture.
dc.description.sponsorshipRITMARE Flagship Project (Italian Ministry of Education, University and Research-MIUR); RITMARE Flagship Project (Stazione Zoologica AntonDohrn-SZN); OCTOWELF project (Spanish Government) [AGL 2013-49101-C2-1-R]; Fundacao para a Ciencia e a Tecnologia [IF/00576/2014, CCMAR - UID/Multi/04326/2013]
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.3389/fphys.2017.00403
dc.identifier.issn1664-042X
dc.identifier.urihttp://hdl.handle.net/10400.1/11521
dc.language.isoeng
dc.peerreviewedyes
dc.publisherFrontiers Media Sa
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectCuttlefish Sepia-Officinalis
dc.subjectOctopus-Vulgaris Cuvier
dc.subjectAmmonia excretion
dc.subjectOxygen-consumption
dc.subjectEledone-Cirrhosa
dc.subjectCulture density
dc.subjectEuropean Cuttlefish
dc.subjectProtein-turnover
dc.subjectEnergy-balance
dc.subjectGrowth-rate
dc.titleThe digestive tract of cephalopods: toward non-invasive in vivo monitoring of its physiology
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage403
oaire.citation.titleFrontiers in Physiology
oaire.citation.volume8
person.familyNameSykes
person.givenNameAntónio
person.identifier107454
person.identifier.ciencia-id7510-6641-5A42
person.identifier.orcid0000-0002-5207-0612
person.identifier.ridC-3609-2012
person.identifier.scopus-author-id7102626426
rcaap.rightsopenAccess
rcaap.typearticle
relation.isAuthorOfPublicationb9d55f95-5de8-40cf-82a3-96ec98c91a55
relation.isAuthorOfPublication.latestForDiscoveryb9d55f95-5de8-40cf-82a3-96ec98c91a55

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