Variability of mesozooplankton biomass and individual size in a coast-offshore transect in the Catalan Sea: relationships with chlorophyll a and hydrographic features

Handle URI:
http://hdl.handle.net/10754/621896
Title:
Variability of mesozooplankton biomass and individual size in <em>a</em> coast-offshore transect in the Catalan Sea: relationships with chlorophyll <em>a</em> and hydrographic features
Authors:
Alcaraz, Miquel; Calbet, Albert; Isari, Stamatina ( 0000-0003-3457-0274 ) ; Irigoien, Xabier ( 0000-0002-5411-6741 ) ; Trepat, Isabel; Saiz, Enric
Abstract:
The temporal and spatial changes of zooplankton and chlorophyll a concentration were studied during the warm stratification period (early June) at three stations whose traits corresponded to the coastal, frontal, and offshore-dome water conditions described for the Catalan Sea. We sampled the stations for 12 days at a frequency ranging from less than 10 to 102 h, with a spatial resolution ranging from 10 to 104 m. The objective was to determine the variability of mesozooplankton and phytoplankton (chlorophyll a) biomass, and average individual size (mass) across a coast-offshore transect in relation to the stratification conditions prevailing in the NW Mediterranean during summer. The vertical distribution of phytoplankton biomass displayed a clear deep maximum at 60 m depth except at the coastal station. This maximum exists during most of the year and is especially important during the density stratification period. It was accompanied during daylight hours by a coherent zooplankton maximum. At sunset mesozooplankton ascended and dispersed, with larger organisms from deeper layers joining the migrating community and increasing the average individual mass. The highest variability of mesozooplankton biomass, individual mass and chlorophyll a concentration occurred at the front station due to the coupling between the vertical migration of zooplankton and the particular characteristics of the front. According to the data shown, the highest variability was observed at the lowest scales.
KAUST Department:
Red Sea Research Center (RSRC)
Citation:
Alcaraz M, Calbet A, Isari S, Irigoien X, Trepat I, et al. (2016) Variability of mesozooplankton biomass and individual size in <em>a</em> coast-offshore transect in the Catalan Sea: relationships with chlorophyll <em>a</em> and hydrographic features. Scientia Marina 80: 79–87. Available: http://dx.doi.org/10.3989/scimar.04353.15A.
Publisher:
Departmento de Publicaciones del CSIC
Journal:
Scientia Marina
Issue Date:
11-Oct-2016
DOI:
10.3989/scimar.04353.15A
Type:
Article
ISSN:
1886-8134; 0214-8358
Sponsors:
We are deeply grateful to Marta Estrada for her friendship, stimulating inspiration and collaboration over almost five decades. This paper is intended as a small homage to her kind and inspired leadership. The VARIMED-95 cruise took place in the framework of the Spanish research project AMB94-1019 from the Ministry of Science to M. Alcaraz. Financial support was also provided by the projects MAR98-0854 and CTM2006-12344-c02 to M.A., TOPCOP-CTM2011-23480 to E. Saiz and FERMI (CGL2014-59227-R) to AC and ES. The authors are indebted to all the participants in the VARIMED-95 cruise, and to the crew of the RV Hespérides. This is a contribution of the Marine Zooplankton Ecology Research Group of the Generalitat de Catalunya (2014 SGR 498).
Additional Links:
http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1659/2138
Appears in Collections:
Articles; Red Sea Research Center (RSRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorAlcaraz, Miquelen
dc.contributor.authorCalbet, Alberten
dc.contributor.authorIsari, Stamatinaen
dc.contributor.authorIrigoien, Xabieren
dc.contributor.authorTrepat, Isabelen
dc.contributor.authorSaiz, Enricen
dc.date.accessioned2016-11-29T08:47:43Z-
dc.date.available2016-11-29T08:47:43Z-
dc.date.issued2016-10-11en
dc.identifier.citationAlcaraz M, Calbet A, Isari S, Irigoien X, Trepat I, et al. (2016) Variability of mesozooplankton biomass and individual size in <em>a</em> coast-offshore transect in the Catalan Sea: relationships with chlorophyll <em>a</em> and hydrographic features. Scientia Marina 80: 79–87. Available: http://dx.doi.org/10.3989/scimar.04353.15A.en
dc.identifier.issn1886-8134en
dc.identifier.issn0214-8358en
dc.identifier.doi10.3989/scimar.04353.15Aen
dc.identifier.urihttp://hdl.handle.net/10754/621896-
dc.description.abstractThe temporal and spatial changes of zooplankton and chlorophyll a concentration were studied during the warm stratification period (early June) at three stations whose traits corresponded to the coastal, frontal, and offshore-dome water conditions described for the Catalan Sea. We sampled the stations for 12 days at a frequency ranging from less than 10 to 102 h, with a spatial resolution ranging from 10 to 104 m. The objective was to determine the variability of mesozooplankton and phytoplankton (chlorophyll a) biomass, and average individual size (mass) across a coast-offshore transect in relation to the stratification conditions prevailing in the NW Mediterranean during summer. The vertical distribution of phytoplankton biomass displayed a clear deep maximum at 60 m depth except at the coastal station. This maximum exists during most of the year and is especially important during the density stratification period. It was accompanied during daylight hours by a coherent zooplankton maximum. At sunset mesozooplankton ascended and dispersed, with larger organisms from deeper layers joining the migrating community and increasing the average individual mass. The highest variability of mesozooplankton biomass, individual mass and chlorophyll a concentration occurred at the front station due to the coupling between the vertical migration of zooplankton and the particular characteristics of the front. According to the data shown, the highest variability was observed at the lowest scales.en
dc.description.sponsorshipWe are deeply grateful to Marta Estrada for her friendship, stimulating inspiration and collaboration over almost five decades. This paper is intended as a small homage to her kind and inspired leadership. The VARIMED-95 cruise took place in the framework of the Spanish research project AMB94-1019 from the Ministry of Science to M. Alcaraz. Financial support was also provided by the projects MAR98-0854 and CTM2006-12344-c02 to M.A., TOPCOP-CTM2011-23480 to E. Saiz and FERMI (CGL2014-59227-R) to AC and ES. The authors are indebted to all the participants in the VARIMED-95 cruise, and to the crew of the RV Hespérides. This is a contribution of the Marine Zooplankton Ecology Research Group of the Generalitat de Catalunya (2014 SGR 498).en
dc.publisherDepartmento de Publicaciones del CSICen
dc.relation.urlhttp://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1659/2138en
dc.rightsThis is an open-access article distributed under the terms of the Creative Commons Attribution (CC-by) Spain 3.0 License.en
dc.subjectzooplankton biomassen
dc.subjectNW Mediterraneanen
dc.subjectspatial distributionen
dc.subjectshort-term variabilityen
dc.titleVariability of mesozooplankton biomass and individual size in <em>a</em> coast-offshore transect in the Catalan Sea: relationships with chlorophyll <em>a</em> and hydrographic featuresen
dc.typeArticleen
dc.contributor.departmentRed Sea Research Center (RSRC)en
dc.identifier.journalScientia Marinaen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionInstitut de Ciències del Mar, CSIC, P. Marítim de la Barceloneta 37-49, 08003 Barcelona, Spain.en
kaust.authorIsari, Stamatinaen
kaust.authorIrigoien, Xabieren
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