Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/120383
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dc.contributor.authorReis Vasconcelos, Joana Patriciaen_US
dc.contributor.authorAlves, Adrianaen_US
dc.contributor.authorGouveia, Elisabeteen_US
dc.contributor.authorFaria, Graçaen_US
dc.date.accessioned2023-02-03T11:12:36Z-
dc.date.available2023-02-03T11:12:36Z-
dc.date.issued2006en_US
dc.identifier.issn0873-4704en_US
dc.identifier.urihttp://hdl.handle.net/10553/120383-
dc.description.abstractBetween 1984 and 1986, 630 pairs of sagitta otoliths were collected to determine the age and growth of the blue jack mackerel, Trachurus picturatus from Madeiran waters. The oldest specimen in this study was nine years old and the largest was 46 cm of total length (TL). The parameters of the von Bertalanffy growth curve were estimated for the whole period studied for all fish (L∞=42.32 cm, k=0.161 year-1, t0= -2.563 year; r2=0.743) for males (L∞=39.57 cm, k=0.194 year-1, t0=-2.282 year; r2=0.722) and for females (L∞=49.78 cm, k=0.114 year-1, t0=-3.052 year; r2 = 0.747). There was no significant differences in mean lengths (t–test, p>0,05) and in the von Bertalanffy growth curves (F-test, p>0,05) between sexes. The validity of otolith readings for estimating age and growth was supported by results from backcalculation method. No significant differences were found in the Bertalanffy growth curves between direct reading of otoliths and backcalculation. Growth parameters estimated from backcalculated sizes-at-age were: for both sexes, L∞=48.28 cm, k=0.135 year-1, t0=-2.898 year and r2=0.999; for males, L∞=44.79 cm, k=0.143 year-1, t0=-3.207 year, r2=0.999; and females, L∞=44.63 cm, k=0.163 year-1, t0=-2.430 year, r2=0.999. The relationship between length and weight was calculated for all fish (Wt=0.00764Lt3.05746; r2=0.951), for males (Wt=0.01271Lt2.90807; r2=0.915) and for females (Wt=0.00604Lt3.12613; r2=0.948).en_US
dc.languageengen_US
dc.relation.ispartofArquipélago. Ciências biológicas e marinhasen_US
dc.sourceArquipélago. Ciências biológicas e marinhas [ISSN 0873-4704], v. 23A, p. 47-57en_US
dc.subject3105 Peces y fauna silvestreen_US
dc.subject240109 Crecimiento animalen_US
dc.subject531201 Agricultura, silvicultura, pescaen_US
dc.titleAge and growth of the blue jack mackerel, Trachurus picturatus Bowdich, 1825 (Pisces: Teleostei) off Madeira archipelagoen_US
dc.typeinfo:eu-repo/semantics/Articleen_US
dc.typeArticleen_US
dc.contributor.orcid0000-0003-3880-2554-
dc.relation.volume23Aen_US
dc.investigacionCienciasen_US
dc.type2Artículoen_US
local.message.claim2023-02-28T12:54:36.767+0000|||rp05545|||submit_approve|||dc_contributor_author|||None-
dc.identifier.external66914601-
dc.utils.revisionen_US
dc.identifier.ulpgcNoen_US
dc.contributor.buulpgcBU-BASen_US
item.grantfulltextopen-
item.fulltextCon texto completo-
crisitem.author.deptGIR ECOAQUA: Biodiversidad y Conservación-
crisitem.author.deptIU de Investigación en Acuicultura Sostenible y Ec-
crisitem.author.orcid0000-0003-3880-2554-
crisitem.author.parentorgIU de Investigación en Acuicultura Sostenible y Ec-
crisitem.author.fullNameReis Vasconcelos, Joana Patricia-
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