Distribution and abundance of Euphausia mucronata: development stages and its relationship with temperature and chlorophyll-a concentration

ABSTRACT Euphausia mucronata abundance and distribution of the developmental stages (calyptopis, furciliae, juveniles, and adults) was analyzed as a function of seawater temperature and chlorophyll-a concentration between Paposo (25°S) and Coquimbo (30°S), Chile. Zooplankton samples were obtained us...

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Autores principales:	González,Pamela, Mujica,Armando, Nava,María Luisa
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2021
Materias:	Euphausia mucronata development stages chlorophyll-a Q coefficient Humboldt Current System southeastern Pacific
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2021000400640
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spelling	oai:scielo:S0718-560X20210004006402021-09-27Distribution and abundance of Euphausia mucronata: development stages and its relationship with temperature and chlorophyll-a concentrationGonzález,PamelaMujica,ArmandoNava,María Luisa Euphausia mucronata development stages chlorophyll-a Q coefficient Humboldt Current System southeastern Pacific ABSTRACT Euphausia mucronata abundance and distribution of the developmental stages (calyptopis, furciliae, juveniles, and adults) was analyzed as a function of seawater temperature and chlorophyll-a concentration between Paposo (25°S) and Coquimbo (30°S), Chile. Zooplankton samples were obtained using bongo nets during February of three consecutive years (2014-2016). The Q coefficient was used to explore the relationship between the distribution and abundance of the development stages of E. mucronata with the temperature recorded throughout the water column. The adults were considerably more abundant than the rest of the ontogenetic development stages during the study period. The abundance of adults decreased from February 2014 to 2016, having a negative correlation with temperature. Relative abundance of juveniles and larvae increased positively related to the total euphausiid abundance. The Q coefficient showed a significant association of all development states concerning the low-temperature intervals recorded throughout the seawater column. Q coefficient showed no association with chlorophyll-a concentration through the recorded intervals throughout the water column and neither with the vertical abundance and distribution of E. mucronata specimens.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.49 n.4 20212021-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2021000400640en10.3856/vol49-issue4-fulltext-2509
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Euphausia mucronata development stages chlorophyll-a Q coefficient Humboldt Current System southeastern Pacific
spellingShingle	Euphausia mucronata development stages chlorophyll-a Q coefficient Humboldt Current System southeastern Pacific González,Pamela Mujica,Armando Nava,María Luisa Distribution and abundance of Euphausia mucronata: development stages and its relationship with temperature and chlorophyll-a concentration
description	ABSTRACT Euphausia mucronata abundance and distribution of the developmental stages (calyptopis, furciliae, juveniles, and adults) was analyzed as a function of seawater temperature and chlorophyll-a concentration between Paposo (25°S) and Coquimbo (30°S), Chile. Zooplankton samples were obtained using bongo nets during February of three consecutive years (2014-2016). The Q coefficient was used to explore the relationship between the distribution and abundance of the development stages of E. mucronata with the temperature recorded throughout the water column. The adults were considerably more abundant than the rest of the ontogenetic development stages during the study period. The abundance of adults decreased from February 2014 to 2016, having a negative correlation with temperature. Relative abundance of juveniles and larvae increased positively related to the total euphausiid abundance. The Q coefficient showed a significant association of all development states concerning the low-temperature intervals recorded throughout the seawater column. Q coefficient showed no association with chlorophyll-a concentration through the recorded intervals throughout the water column and neither with the vertical abundance and distribution of E. mucronata specimens.
author	González,Pamela Mujica,Armando Nava,María Luisa
author_facet	González,Pamela Mujica,Armando Nava,María Luisa
author_sort	González,Pamela
title	Distribution and abundance of Euphausia mucronata: development stages and its relationship with temperature and chlorophyll-a concentration
title_short	Distribution and abundance of Euphausia mucronata: development stages and its relationship with temperature and chlorophyll-a concentration
title_full	Distribution and abundance of Euphausia mucronata: development stages and its relationship with temperature and chlorophyll-a concentration
title_fullStr	Distribution and abundance of Euphausia mucronata: development stages and its relationship with temperature and chlorophyll-a concentration
title_full_unstemmed	Distribution and abundance of Euphausia mucronata: development stages and its relationship with temperature and chlorophyll-a concentration
title_sort	distribution and abundance of euphausia mucronata: development stages and its relationship with temperature and chlorophyll-a concentration
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2021
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2021000400640
work_keys_str_mv	AT gonzalezpamela distributionandabundanceofeuphausiamucronatadevelopmentstagesanditsrelationshipwithtemperatureandchlorophyllaconcentration AT mujicaarmando distributionandabundanceofeuphausiamucronatadevelopmentstagesanditsrelationshipwithtemperatureandchlorophyllaconcentration AT navamarialuisa distributionandabundanceofeuphausiamucronatadevelopmentstagesanditsrelationshipwithtemperatureandchlorophyllaconcentration
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Distribution and abundance of Euphausia mucronata: development stages and its relationship with temperature and chlorophyll-a concentration

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