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Does the nutritional condition limit survival potential of sardine Sardina pilchardus (Walbaum, 1792) larvae off the north coast of Spain? RNA/DNA ratios and their variability

1998Journal article Restricted access
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dc.contributor.authorChicharo, Maria Alexandra
dc.contributor.authorChícharo, Luís
dc.contributor.authorValdes, L.
dc.contributor.authorLopez-Jamar, E.
dc.contributor.authorRe, P.
dc.date.accessioned2013-02-26T15:36:45Z
dc.date.available2013-02-26T15:36:45Z
dc.date.issued1998
dc.date.updated2013-02-19T16:34:31Z
dc.description.abstractThe aim of this study was to determine the nutritional condition of Sardina pilchardus larvae and the percentage of larvae that were starving at the time of capture. The survey was conducted, during the spawning season, in April and May of 1991 and 1992, off the northern coast of Spain. An accepted ¯uorimetric technique was used to determine the concentrations of both RNA and DNA and to calculate RNA/DNA ratio for each larva. RNA/DNA ratios were related to the zooplankton biomass (>53 mm). Low percentages of starving larvae (RNA/DNA ratio less than 1.3) were registered, ranging from 0% to 2.5%. Results based on the mean and variance of individual larval growth rates showed that predation pressure was not increasing from 1991 to 1992. Based on the presence of sardine larvae in good condition together with low predation, a high recruitment was expected. However, the 1993 recruitment, from 1992 spring spawning, was very poor. This was associated mainly with unfavourable advection from the nursery area. Moreover, even low levels of starvation, such as registered, operating over long time periods could have considerable consequences for larval mortality.por
dc.identifier.citationChicharo, M. A.; Chicharo, L. M. Z.; Valdes, L.; Lopez-Jamar, E.; Re, P. Does the nutritional condition limit survival potential of sardine Sardina pilchardus (Walbaum, 1792) larvae off the north coast of Spain? RNA/DNA ratios and their variability, Fisheries Research, 39, 1, 43-54, 1998.por
dc.identifier.doi10.1016/S0165-7836(98)00167-2
dc.identifier.issn0165-7836
dc.identifier.otherAUT: MCH00377;
dc.identifier.urihttp://hdl.handle.net/10400.1/2483
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevierpor
dc.subjectFish larvaepor
dc.subjectNutritional conditionpor
dc.subjectSardina pilcharduspor
dc.subjectRNApor
dc.subjectDNA ratiospor
dc.subjectRNA DNA ratiospor
dc.titleDoes the nutritional condition limit survival potential of sardine Sardina pilchardus (Walbaum, 1792) larvae off the north coast of Spain? RNA/DNA ratios and their variabilitypor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage54por
oaire.citation.issue1por
oaire.citation.startPage43por
oaire.citation.titleFisheries Researchpor
oaire.citation.volume39por
person.familyNameTeodosio
person.familyNameChicharo
person.givenNameMaria
person.givenNameLuis
person.identifier.ciencia-idAF10-647B-65FB
person.identifier.ciencia-id6716-EE1C-B995
person.identifier.orcid0000-0002-0939-9885
person.identifier.orcid0000-0002-4933-2300
person.identifier.ridB-5077-2013
person.identifier.scopus-author-id56196396700
person.identifier.scopus-author-id6602881426
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublicationb39b2d6d-d6f5-4130-a9b9-4e7624d44676
relation.isAuthorOfPublicationd3ff8510-3be1-4a6a-abdd-eb671a819aef
relation.isAuthorOfPublication.latestForDiscoveryb39b2d6d-d6f5-4130-a9b9-4e7624d44676

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