First measurements of euphausiid growth rates in the northern Humboldt Current (23ºS)

One hundred and five juveniles and adults of Euphausia mucronata were incubated in order to estimate their daily growth rates (DGR) using the standard instantaneous growth rate method. From 77 krill that survived after 2 days of incubation under laboratory conditions, 70 individuals molted (35.1% ma...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Riquelme-Bugueño,Ramiro, Gómez-Gutiérrez,Jaime, Escribano,Rubén, Ruz,Paula, Hidalgo,Pamela, Schneider,Wolfgang
Lenguaje:	English
Publicado:	Universidad de Valparaíso. Facultad de Ciencias del Mar 2016
Materias:	Euphausia mucronata intermolt period Bahía Mejillones Southeastern Pacific Chile
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572016000200020
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0718-19572016000200020
record_format	dspace
spelling	oai:scielo:S0718-195720160002000202016-09-05First measurements of euphausiid growth rates in the northern Humboldt Current (23ºS)Riquelme-Bugueño,RamiroGómez-Gutiérrez,JaimeEscribano,RubénRuz,PaulaHidalgo,PamelaSchneider,Wolfgang Euphausia mucronata intermolt period Bahía Mejillones Southeastern Pacific Chile One hundred and five juveniles and adults of Euphausia mucronata were incubated in order to estimate their daily growth rates (DGR) using the standard instantaneous growth rate method. From 77 krill that survived after 2 days of incubation under laboratory conditions, 70 individuals molted (35.1% males, 64.9% females). E. mucronata mean intermolt period was 5.2 days (range = 4-9 d) with mean DGR of 0.01 mm d-1 for males and -0.04 mm d-1 for females. Overall mean DGR was -0.02 mm d-1. DGRs were positive (31%), zero (12%) and negative (57%). DGR<0 evidenced body shrinking process suggesting that environmental conditions in austral autumn 2010 were unfavorable for the krill population. However, because females had DGR<0 values more frequently than males it is probable that females also used part of their energy on gonad development rather than body growth.info:eu-repo/semantics/openAccessUniversidad de Valparaíso. Facultad de Ciencias del MarRevista de biología marina y oceanografía v.51 n.2 20162016-08-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572016000200020en10.4067/S0718-19572016000200020
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Euphausia mucronata intermolt period Bahía Mejillones Southeastern Pacific Chile
spellingShingle	Euphausia mucronata intermolt period Bahía Mejillones Southeastern Pacific Chile Riquelme-Bugueño,Ramiro Gómez-Gutiérrez,Jaime Escribano,Rubén Ruz,Paula Hidalgo,Pamela Schneider,Wolfgang First measurements of euphausiid growth rates in the northern Humboldt Current (23ºS)
description	One hundred and five juveniles and adults of Euphausia mucronata were incubated in order to estimate their daily growth rates (DGR) using the standard instantaneous growth rate method. From 77 krill that survived after 2 days of incubation under laboratory conditions, 70 individuals molted (35.1% males, 64.9% females). E. mucronata mean intermolt period was 5.2 days (range = 4-9 d) with mean DGR of 0.01 mm d-1 for males and -0.04 mm d-1 for females. Overall mean DGR was -0.02 mm d-1. DGRs were positive (31%), zero (12%) and negative (57%). DGR<0 evidenced body shrinking process suggesting that environmental conditions in austral autumn 2010 were unfavorable for the krill population. However, because females had DGR<0 values more frequently than males it is probable that females also used part of their energy on gonad development rather than body growth.
author	Riquelme-Bugueño,Ramiro Gómez-Gutiérrez,Jaime Escribano,Rubén Ruz,Paula Hidalgo,Pamela Schneider,Wolfgang
author_facet	Riquelme-Bugueño,Ramiro Gómez-Gutiérrez,Jaime Escribano,Rubén Ruz,Paula Hidalgo,Pamela Schneider,Wolfgang
author_sort	Riquelme-Bugueño,Ramiro
title	First measurements of euphausiid growth rates in the northern Humboldt Current (23ºS)
title_short	First measurements of euphausiid growth rates in the northern Humboldt Current (23ºS)
title_full	First measurements of euphausiid growth rates in the northern Humboldt Current (23ºS)
title_fullStr	First measurements of euphausiid growth rates in the northern Humboldt Current (23ºS)
title_full_unstemmed	First measurements of euphausiid growth rates in the northern Humboldt Current (23ºS)
title_sort	first measurements of euphausiid growth rates in the northern humboldt current (23ºs)
publisher	Universidad de Valparaíso. Facultad de Ciencias del Mar
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572016000200020
work_keys_str_mv	AT riquelmebuguenoramiro firstmeasurementsofeuphausiidgrowthratesinthenorthernhumboldtcurrent23os AT gomezgutierrezjaime firstmeasurementsofeuphausiidgrowthratesinthenorthernhumboldtcurrent23os AT escribanoruben firstmeasurementsofeuphausiidgrowthratesinthenorthernhumboldtcurrent23os AT ruzpaula firstmeasurementsofeuphausiidgrowthratesinthenorthernhumboldtcurrent23os AT hidalgopamela firstmeasurementsofeuphausiidgrowthratesinthenorthernhumboldtcurrent23os AT schneiderwolfgang firstmeasurementsofeuphausiidgrowthratesinthenorthernhumboldtcurrent23os
_version_	1714202360946884608

First measurements of euphausiid growth rates in the northern Humboldt Current (23ºS)

Ejemplares similares