Age and growth of the Dolphinfish Coryphaena hippurus in the coast of Oaxaca and Chiapas, Mexico

Daily growth increments were analyzed in otoliths of Dolphinfish (Coryphaena hippurus) in the coasts of Oaxaca and Chiapas, on the central Mexican Pacific, from September 2004 to September 2005. Results showed that it is possible to count daily growth rings in the sagittae, mainly on the pararostrum...

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Autores principales:	Solano-Fernández,Mauricio, Montoya-Márquez,José Alberto, Gallardo-Cabello,Manuel, Espino-Barr,Elaine
Lenguaje:	English
Publicado:	Universidad de Valparaíso. Facultad de Ciencias del Mar 2015
Materias:	Daily growth increments sagitta von Bertalanffy Gompertz Mexican Pacific
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572015000400008
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spelling	oai:scielo:S0718-195720150004000082016-01-26Age and growth of the Dolphinfish Coryphaena hippurus in the coast of Oaxaca and Chiapas, MexicoSolano-Fernández,MauricioMontoya-Márquez,José AlbertoGallardo-Cabello,ManuelEspino-Barr,Elaine Daily growth increments sagitta von Bertalanffy Gompertz Mexican Pacific Daily growth increments were analyzed in otoliths of Dolphinfish (Coryphaena hippurus) in the coasts of Oaxaca and Chiapas, on the central Mexican Pacific, from September 2004 to September 2005. Results showed that it is possible to count daily growth rings in the sagittae, mainly on the pararostrum zone. Seasonal growth rings were not detected, that is, longer than daily periodicity. We consider that this method is ideal to identify daily growth rings in young organisms. As specimen age and the amplitude of the growth rings diminish, these rings can be underestimated because they appear to overlap. The Gompertz growth model best described the first growth phase (L0= 7.02, G= 3.04, g= 2.89), and the von Bertalanffy constants were: L∞= 231.65 cm, W∞= 77.926 kg, K= 0.874, t0= 0.074. The longevity was estimated at 3.44 years. Sexual dimorphism results in differences in the weight-length relationship and the relative condition factor with males (W= 2.154 · 10-5 · L2.788, CFr= 1.04) having higher values than females (W= 4.608 · 10-5 · L2.586, CFr= 0.96), due to the presence of the bony crest in males.info:eu-repo/semantics/openAccessUniversidad de Valparaíso. Facultad de Ciencias del MarRevista de biología marina y oceanografía v.50 n.3 20152015-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572015000400008en10.4067/S0718-19572015000400008
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Daily growth increments sagitta von Bertalanffy Gompertz Mexican Pacific
spellingShingle	Daily growth increments sagitta von Bertalanffy Gompertz Mexican Pacific Solano-Fernández,Mauricio Montoya-Márquez,José Alberto Gallardo-Cabello,Manuel Espino-Barr,Elaine Age and growth of the Dolphinfish Coryphaena hippurus in the coast of Oaxaca and Chiapas, Mexico
description	Daily growth increments were analyzed in otoliths of Dolphinfish (Coryphaena hippurus) in the coasts of Oaxaca and Chiapas, on the central Mexican Pacific, from September 2004 to September 2005. Results showed that it is possible to count daily growth rings in the sagittae, mainly on the pararostrum zone. Seasonal growth rings were not detected, that is, longer than daily periodicity. We consider that this method is ideal to identify daily growth rings in young organisms. As specimen age and the amplitude of the growth rings diminish, these rings can be underestimated because they appear to overlap. The Gompertz growth model best described the first growth phase (L0= 7.02, G= 3.04, g= 2.89), and the von Bertalanffy constants were: L∞= 231.65 cm, W∞= 77.926 kg, K= 0.874, t0= 0.074. The longevity was estimated at 3.44 years. Sexual dimorphism results in differences in the weight-length relationship and the relative condition factor with males (W= 2.154 · 10-5 · L2.788, CFr= 1.04) having higher values than females (W= 4.608 · 10-5 · L2.586, CFr= 0.96), due to the presence of the bony crest in males.
author	Solano-Fernández,Mauricio Montoya-Márquez,José Alberto Gallardo-Cabello,Manuel Espino-Barr,Elaine
author_facet	Solano-Fernández,Mauricio Montoya-Márquez,José Alberto Gallardo-Cabello,Manuel Espino-Barr,Elaine
author_sort	Solano-Fernández,Mauricio
title	Age and growth of the Dolphinfish Coryphaena hippurus in the coast of Oaxaca and Chiapas, Mexico
title_short	Age and growth of the Dolphinfish Coryphaena hippurus in the coast of Oaxaca and Chiapas, Mexico
title_full	Age and growth of the Dolphinfish Coryphaena hippurus in the coast of Oaxaca and Chiapas, Mexico
title_fullStr	Age and growth of the Dolphinfish Coryphaena hippurus in the coast of Oaxaca and Chiapas, Mexico
title_full_unstemmed	Age and growth of the Dolphinfish Coryphaena hippurus in the coast of Oaxaca and Chiapas, Mexico
title_sort	age and growth of the dolphinfish coryphaena hippurus in the coast of oaxaca and chiapas, mexico
publisher	Universidad de Valparaíso. Facultad de Ciencias del Mar
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572015000400008
work_keys_str_mv	AT solanofernandezmauricio ageandgrowthofthedolphinfishcoryphaenahippurusinthecoastofoaxacaandchiapasmexico AT montoyamarquezjosealberto ageandgrowthofthedolphinfishcoryphaenahippurusinthecoastofoaxacaandchiapasmexico AT gallardocabellomanuel ageandgrowthofthedolphinfishcoryphaenahippurusinthecoastofoaxacaandchiapasmexico AT espinobarrelaine ageandgrowthofthedolphinfishcoryphaenahippurusinthecoastofoaxacaandchiapasmexico
_version_	1714202351534866432

Age and growth of the Dolphinfish Coryphaena hippurus in the coast of Oaxaca and Chiapas, Mexico

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