Development of free neuromasts in Engraulis ringens and Strangomera bentincki (Teleostei, Clupeiformes) early larvae

Neuromast morphology and distribution are characterized during early ontogeny of anchoveta (Engraulis ringens) and common sardine (Strangomera bentincki). Although both species share morphological features, they show several differences during their early ontogeny, such as size at hatching and yolk...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Llanos-Rivera,Alejandra, Herrera,Guillermo, Tarifeño,Eduardo, Castro,Leonardo R
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2014
Materias:	neuromasts larvae Engraulis Strangomera Clupeiforms Chile
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2014000100022
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-560X2014000100022
record_format	dspace
spelling	oai:scielo:S0718-560X20140001000222014-04-23Development of free neuromasts in Engraulis ringens and Strangomera bentincki (Teleostei, Clupeiformes) early larvaeLlanos-Rivera,AlejandraHerrera,GuillermoTarifeño,EduardoCastro,Leonardo R neuromasts larvae Engraulis Strangomera Clupeiforms Chile Neuromast morphology and distribution are characterized during early ontogeny of anchoveta (Engraulis ringens) and common sardine (Strangomera bentincki). Although both species share morphological features, they show several differences during their early ontogeny, such as size at hatching and yolk absorption. Larvae were obtained from incubation of planktonic eggs (at 12°C), collected during the spawning season 2001 (August-September) at Coliumo Bay. The neuromasts were observed from hatching to 25 days, and the pattern of neuromast appearance, in newly hatched larva, until yolk absorption, was determined using Janus Green staining and scanning electronic microscope. Results showed a similar pattern of neuromast development in both species. At hatching, two pairs of neuromasts were observed in the cephalic area and 8-9 in the rest of the body, which increased to 19 pairs and to 30-39 pairs at a larval size of 11 mm, respectively. On the average, 12 hair cells per neuromast were counted, with little variation among neuromasts. The polarity of these hair cells was closest to multiple polarity. Neuromast positioning for both species, anchoveta and common sardine larvae, are similar to those of Engraulis mordax and Clupea harengus, respectively. The similar development pattern of these species seems to be related to similar functional constraints and close taxonomic affinity.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.42 n.1 20142014-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2014000100022en103856/vol42-issue1-fulltext-22
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	neuromasts larvae Engraulis Strangomera Clupeiforms Chile
spellingShingle	neuromasts larvae Engraulis Strangomera Clupeiforms Chile Llanos-Rivera,Alejandra Herrera,Guillermo Tarifeño,Eduardo Castro,Leonardo R Development of free neuromasts in Engraulis ringens and Strangomera bentincki (Teleostei, Clupeiformes) early larvae
description	Neuromast morphology and distribution are characterized during early ontogeny of anchoveta (Engraulis ringens) and common sardine (Strangomera bentincki). Although both species share morphological features, they show several differences during their early ontogeny, such as size at hatching and yolk absorption. Larvae were obtained from incubation of planktonic eggs (at 12°C), collected during the spawning season 2001 (August-September) at Coliumo Bay. The neuromasts were observed from hatching to 25 days, and the pattern of neuromast appearance, in newly hatched larva, until yolk absorption, was determined using Janus Green staining and scanning electronic microscope. Results showed a similar pattern of neuromast development in both species. At hatching, two pairs of neuromasts were observed in the cephalic area and 8-9 in the rest of the body, which increased to 19 pairs and to 30-39 pairs at a larval size of 11 mm, respectively. On the average, 12 hair cells per neuromast were counted, with little variation among neuromasts. The polarity of these hair cells was closest to multiple polarity. Neuromast positioning for both species, anchoveta and common sardine larvae, are similar to those of Engraulis mordax and Clupea harengus, respectively. The similar development pattern of these species seems to be related to similar functional constraints and close taxonomic affinity.
author	Llanos-Rivera,Alejandra Herrera,Guillermo Tarifeño,Eduardo Castro,Leonardo R
author_facet	Llanos-Rivera,Alejandra Herrera,Guillermo Tarifeño,Eduardo Castro,Leonardo R
author_sort	Llanos-Rivera,Alejandra
title	Development of free neuromasts in Engraulis ringens and Strangomera bentincki (Teleostei, Clupeiformes) early larvae
title_short	Development of free neuromasts in Engraulis ringens and Strangomera bentincki (Teleostei, Clupeiformes) early larvae
title_full	Development of free neuromasts in Engraulis ringens and Strangomera bentincki (Teleostei, Clupeiformes) early larvae
title_fullStr	Development of free neuromasts in Engraulis ringens and Strangomera bentincki (Teleostei, Clupeiformes) early larvae
title_full_unstemmed	Development of free neuromasts in Engraulis ringens and Strangomera bentincki (Teleostei, Clupeiformes) early larvae
title_sort	development of free neuromasts in engraulis ringens and strangomera bentincki (teleostei, clupeiformes) early larvae
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2014000100022
work_keys_str_mv	AT llanosriveraalejandra developmentoffreeneuromastsinengraulisringensandstrangomerabentinckiteleosteiclupeiformesearlylarvae AT herreraguillermo developmentoffreeneuromastsinengraulisringensandstrangomerabentinckiteleosteiclupeiformesearlylarvae AT tarifenoeduardo developmentoffreeneuromastsinengraulisringensandstrangomerabentinckiteleosteiclupeiformesearlylarvae AT castroleonardor developmentoffreeneuromastsinengraulisringensandstrangomerabentinckiteleosteiclupeiformesearlylarvae
_version_	1714205123232661504

Development of free neuromasts in Engraulis ringens and Strangomera bentincki (Teleostei, Clupeiformes) early larvae

Ejemplares similares