Coupling between the thermohaline, chemical and biological fields during summer 2006 in the northeast continental shelf of the Gulf of Cádiz (SW Iberian Peninsula)
The coupling between the thermohaline, chemical and biological variables on the northeast continental shelf of the Gulf of Cádiz was determined during the Emigas I survey in summer 2006. Samples were collected to chemically characterize the different water types and to analyze the chlorophyll a dist...
Published in: | Scientia Marina |
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Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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Consejo Superior de Investigaciones Científicas
2010
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Online Access: | https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1217 https://doi.org/10.3989/scimar.2010.74s1047 |
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ftjscientiamarin:oai:scientiamarina.revistas.csic.es:article/1217 |
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Scientia Marina (E-Journal) |
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English |
topic |
nutrients chlorophyll a nitracline River Guadalquivir Gulf of Cádiz nutrientes clorofila-a nitraclina rio Guadalquivir golfo de Cádiz |
spellingShingle |
nutrients chlorophyll a nitracline River Guadalquivir Gulf of Cádiz nutrientes clorofila-a nitraclina rio Guadalquivir golfo de Cádiz Anfuso, Eleonora Ponce, Rocio Gonzalez Castro, Carmen Forja, Jesús M. Coupling between the thermohaline, chemical and biological fields during summer 2006 in the northeast continental shelf of the Gulf of Cádiz (SW Iberian Peninsula) |
topic_facet |
nutrients chlorophyll a nitracline River Guadalquivir Gulf of Cádiz nutrientes clorofila-a nitraclina rio Guadalquivir golfo de Cádiz |
description |
The coupling between the thermohaline, chemical and biological variables on the northeast continental shelf of the Gulf of Cádiz was determined during the Emigas I survey in summer 2006. Samples were collected to chemically characterize the different water types and to analyze the chlorophyll a distribution. Four different water masses were identified: North Atlantic Central Water (NACW), Surface Atlantic Water (SAW), considered a modification of NACW, and South and North Surface Waters. The highest nutrient levels were found in subsurface NACW, while surface waters were almost nutrient-depleted except in the Guadalquivir region. The isopycnal level of 26.3 kg m-3 marked the limit between nutrient-rich NACW and nutrient-poor surface waters. At the offshore stations, the subsurface cholorophyll a maximum was located at the depth of nitracline and associated with the 26.3 kg m-3 isopycnal level rather than with the pycnocline depth. At the inshore stations, chlorophyll a maxima were observed at the bottom, except for the surface maximum in the River Guadalquivir region. Durante el verano 2006 se llevó a cabo una campaña oceanográfica en la parte NE de la plataforma continental del Golfo de Cádiz para determinar el acoplamiento de las variables termohalinas, químicas y biológicas. En cada estación se tomaron muestras para la caracterización química de las diferentes masas de agua y el análisis de la distribución de clorofila-a. Se diferenciaron cuatro tipos distintos de masas de agua: North Atlantic Central Water (NACW); Surface Atlantic Water (SAW), que es una modificación de la primera y las aguas superficiales del Norte y del Sur. Las concentraciones más elevadas de nutrientes se encontraron asociadas con las aguas profundas (NACW); en cambio las aguas superficiales estaban prácticamente agotadas en nutrientes, con excepción de las estaciones próximas a la desembocadura del Río Guadalquivir. El límite entre NACW rica en nutrientes y las aguas con bajas concentraciones de nutrientes fue establecido en el nivel isopícnico de 26.3 kg m-3. Para las estaciones exteriores, el máximo subsuperficial de clorofila-a no se encontró en la posición de la picnoclina sino en la de la nitraclina, asociado al nivel isopícnico de 26.3 kg m-3. Para las estaciones interiores, el máximo de clorofila se localizó cerca del fondo, con excepción de la región del Río Guadalquivir, donde se observó un máximo superficial. |
format |
Article in Journal/Newspaper |
author |
Anfuso, Eleonora Ponce, Rocio Gonzalez Castro, Carmen Forja, Jesús M. |
author_facet |
Anfuso, Eleonora Ponce, Rocio Gonzalez Castro, Carmen Forja, Jesús M. |
author_sort |
Anfuso, Eleonora |
title |
Coupling between the thermohaline, chemical and biological fields during summer 2006 in the northeast continental shelf of the Gulf of Cádiz (SW Iberian Peninsula) |
title_short |
Coupling between the thermohaline, chemical and biological fields during summer 2006 in the northeast continental shelf of the Gulf of Cádiz (SW Iberian Peninsula) |
title_full |
Coupling between the thermohaline, chemical and biological fields during summer 2006 in the northeast continental shelf of the Gulf of Cádiz (SW Iberian Peninsula) |
title_fullStr |
Coupling between the thermohaline, chemical and biological fields during summer 2006 in the northeast continental shelf of the Gulf of Cádiz (SW Iberian Peninsula) |
title_full_unstemmed |
Coupling between the thermohaline, chemical and biological fields during summer 2006 in the northeast continental shelf of the Gulf of Cádiz (SW Iberian Peninsula) |
title_sort |
coupling between the thermohaline, chemical and biological fields during summer 2006 in the northeast continental shelf of the gulf of cádiz (sw iberian peninsula) |
publisher |
Consejo Superior de Investigaciones Científicas |
publishDate |
2010 |
url |
https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1217 https://doi.org/10.3989/scimar.2010.74s1047 |
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ENVELOPE(-57.629,-57.629,-61.898,-61.898) |
geographic |
Límite |
geographic_facet |
Límite |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Scientia Marina; Vol. 74 No. S1 (2010); 47-56 Scientia Marina; Vol. 74 Núm. S1 (2010); 47-56 1886-8134 0214-8358 10.3989/scimar.2010.74s1 |
op_relation |
https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1217/1279 https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1217 doi:10.3989/scimar.2010.74s1047 |
op_rights |
Copyright (c) 2010 Consejo Superior de Investigaciones Científicas (CSIC) https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3989/scimar.2010.74s1047 https://doi.org/10.3989/scimar.2010.74s1 |
container_title |
Scientia Marina |
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74 |
container_issue |
S1 |
container_start_page |
47 |
op_container_end_page |
56 |
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1766132152342151168 |
spelling |
ftjscientiamarin:oai:scientiamarina.revistas.csic.es:article/1217 2023-05-15T17:33:36+02:00 Coupling between the thermohaline, chemical and biological fields during summer 2006 in the northeast continental shelf of the Gulf of Cádiz (SW Iberian Peninsula) Acoplamiento de las variables termohalinas, químicas y biológicas durante el verano 2006 en la parte noreste de la plataforma continental del golfo de Cádiz (SO de la peninsula Iberica) Anfuso, Eleonora Ponce, Rocio Gonzalez Castro, Carmen Forja, Jesús M. 2010-12-30 application/pdf https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1217 https://doi.org/10.3989/scimar.2010.74s1047 eng eng Consejo Superior de Investigaciones Científicas https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1217/1279 https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1217 doi:10.3989/scimar.2010.74s1047 Copyright (c) 2010 Consejo Superior de Investigaciones Científicas (CSIC) https://creativecommons.org/licenses/by/4.0 CC-BY Scientia Marina; Vol. 74 No. S1 (2010); 47-56 Scientia Marina; Vol. 74 Núm. S1 (2010); 47-56 1886-8134 0214-8358 10.3989/scimar.2010.74s1 nutrients chlorophyll a nitracline River Guadalquivir Gulf of Cádiz nutrientes clorofila-a nitraclina rio Guadalquivir golfo de Cádiz info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed article Artículo revisado por pares 2010 ftjscientiamarin https://doi.org/10.3989/scimar.2010.74s1047 https://doi.org/10.3989/scimar.2010.74s1 2022-03-20T16:31:10Z The coupling between the thermohaline, chemical and biological variables on the northeast continental shelf of the Gulf of Cádiz was determined during the Emigas I survey in summer 2006. Samples were collected to chemically characterize the different water types and to analyze the chlorophyll a distribution. Four different water masses were identified: North Atlantic Central Water (NACW), Surface Atlantic Water (SAW), considered a modification of NACW, and South and North Surface Waters. The highest nutrient levels were found in subsurface NACW, while surface waters were almost nutrient-depleted except in the Guadalquivir region. The isopycnal level of 26.3 kg m-3 marked the limit between nutrient-rich NACW and nutrient-poor surface waters. At the offshore stations, the subsurface cholorophyll a maximum was located at the depth of nitracline and associated with the 26.3 kg m-3 isopycnal level rather than with the pycnocline depth. At the inshore stations, chlorophyll a maxima were observed at the bottom, except for the surface maximum in the River Guadalquivir region. Durante el verano 2006 se llevó a cabo una campaña oceanográfica en la parte NE de la plataforma continental del Golfo de Cádiz para determinar el acoplamiento de las variables termohalinas, químicas y biológicas. En cada estación se tomaron muestras para la caracterización química de las diferentes masas de agua y el análisis de la distribución de clorofila-a. Se diferenciaron cuatro tipos distintos de masas de agua: North Atlantic Central Water (NACW); Surface Atlantic Water (SAW), que es una modificación de la primera y las aguas superficiales del Norte y del Sur. Las concentraciones más elevadas de nutrientes se encontraron asociadas con las aguas profundas (NACW); en cambio las aguas superficiales estaban prácticamente agotadas en nutrientes, con excepción de las estaciones próximas a la desembocadura del Río Guadalquivir. El límite entre NACW rica en nutrientes y las aguas con bajas concentraciones de nutrientes fue establecido en el nivel isopícnico de 26.3 kg m-3. Para las estaciones exteriores, el máximo subsuperficial de clorofila-a no se encontró en la posición de la picnoclina sino en la de la nitraclina, asociado al nivel isopícnico de 26.3 kg m-3. Para las estaciones interiores, el máximo de clorofila se localizó cerca del fondo, con excepción de la región del Río Guadalquivir, donde se observó un máximo superficial. Article in Journal/Newspaper North Atlantic Scientia Marina (E-Journal) Límite ENVELOPE(-57.629,-57.629,-61.898,-61.898) Scientia Marina 74 S1 47 56 |