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The distribution of estuarine fish larvae: nutritional condition and co-occurrence with predators and prey

2000Journal article Restricted access
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dc.contributor.authorEsteves, E.
dc.contributor.authorPina, T.
dc.contributor.authorTeodosio, Maria
dc.contributor.authorAndrade, José Pedro
dc.date.accessioned2013-02-21T15:01:00Z
dc.date.available2013-02-21T15:01:00Z
dc.date.issued2000
dc.date.updated2013-02-19T16:32:09Z
dc.description.abstractFish larvae were collected monthly between March and September 1997 in the Mira and Guadiana estuaries (southern Portugal). Hydrological parameters were registered and zooplankton samples were obtained simultaneously. Densities of fish larvae (ind·100 m–3) were calculated from 211 samples and larval nutritional condition measured as RNA/DNA ratios were obtained for 346 individuals, using a fluorimetric method for nucleic acid quantification. Correlating variables were further studied using multiple regression analysis in order to assess the relative importance of abiotic and biotic factors affecting within-year trends in abundance and nutritional condition of estuarine fish larvae. Results indicated that: 1) the abundance of fish larvae seems conditioned by temperature and predation; and 2) their nutritional condition is dependent on temperature and prey availability. Temperature is an important variable structuring estuaries and therefore conditions the behaviour and physiology of fish larvae. Furthermore, the co-occurrence of predators and larvae might be related to similar feeding patterns or comensalism. Whenever feeding conditions are suitable, they usually determine enhanced growth and nutritional condition. However, predation seems to control this latter relationship through its effect on larval mortality.por
dc.identifier.citationEsteves, E.; Pina, T.; Chicharo, M. A.; Andrade, J. P. The distribution of estuarine fish larvae: Nutritional condition and co-occurrence with predators and prey, Acta Oecologica-International Journal of Ecology, 21, 3, 161-173, 2000.por
dc.identifier.issn1146-609X
dc.identifier.otherAUT: EES01759;MCH00377;JAN00399;
dc.identifier.urihttp://hdl.handle.net/10400.1/2390
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherÉditions scientifiques et médicales Elsevier SASpor
dc.subjectFish larvaepor
dc.subjectDistributionpor
dc.subjectRNApor
dc.subjectDNA ratiospor
dc.subjectNutritional conditionpor
dc.subjectCapelin Mallotus-Villosuspor
dc.titleThe distribution of estuarine fish larvae: nutritional condition and co-occurrence with predators and preypor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage173por
oaire.citation.issue3por
oaire.citation.startPage161por
oaire.citation.titleActa Oecologica-International Journal of Ecologypor
oaire.citation.volume21por
person.familyNameEsteves
person.familyNameTeodosio
person.familyNameAndrade
person.givenNameEduardo
person.givenNameMaria
person.givenNameJose
person.identifier.ciencia-idC81D-666A-FF24
person.identifier.ciencia-idAF10-647B-65FB
person.identifier.ciencia-idD514-1A21-F020
person.identifier.orcid0000-0002-1872-8185
person.identifier.orcid0000-0002-0939-9885
person.identifier.orcid0000-0002-5482-9776
person.identifier.ridE-9582-2012
person.identifier.ridB-5077-2013
person.identifier.scopus-author-id7003885183
person.identifier.scopus-author-id56196396700
person.identifier.scopus-author-id7201722097
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublicationaa7fd030-1bcb-4f16-83ad-508346a35f97
relation.isAuthorOfPublicationb39b2d6d-d6f5-4130-a9b9-4e7624d44676
relation.isAuthorOfPublication8f1ffbdc-85aa-4342-8bd8-61eb6d6be74e
relation.isAuthorOfPublication.latestForDiscovery8f1ffbdc-85aa-4342-8bd8-61eb6d6be74e

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