Zooplankton long-term changes in the NW Mediterranean Sea: Decadal periodicity forced by winter hydrographic conditions related to large-scale atmospheric changes?
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| Title: | Zooplankton long-term changes in the NW Mediterranean Sea: Decadal periodicity forced by winter hydrographic conditions related to large-scale atmospheric changes? |
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| Authors: | García-Comas, Carmen1,2,3 carmencomas@gmail.com, Stemmann, Lars1,2 stemmann@obs-vlfr.fr, Ibanez, Frédéric1,2, Berline, Léo1,2,4, Mazzocchi, Maria Grazia3, Gasparini, Stéphane1,2, Picheral, Marc1,2, Gorsky, Gabriel1,2 |
| Source: | Journal of Marine Systems. Sep2011, Vol. 87 Issue 3/4, p216-226. 11p. |
| Subjects: | Zooplankton, Hydrography, Climate change, Cold weather conditions, North Atlantic oscillation, Salinity, Principal components analysis, Time series analysis |
| Geographic Terms: | Ligurian Sea, Mediterranean Sea |
| Abstract: | Abstract: Copepod, chaetognath, decapod larva, siphonophore and jellyfish monthly abundances, from 1974 to 2003 at Point B (northwestern Mediterranean), were obtained with the ZooScan. Principal component analysis (PCA) was performed on zooplankton, and another PCA on local environment. Almost-decadal periods (1974–1982, 1983–1991, 1992–1999, and 2000–2003) were distinguished in the 1st PC of zooplankton, and that of local environment (1974–1980, 1981–1991, 1992–1998, and 1999–2003). The 1st PC of local environment was correlated with winter North Atlantic Oscillation (NAO) until early 1990s. In early 1980s, all groups increased and the majority of the decade abundances were above the long-term average for most groups. In the 1990s, all decreased, and in early 2000s they increased. This synchrony suggests bottom-up control as main mechanism structuring these groups. The 1980s were characterized by low winter temperature and high salinity. We hypothesize that phytoplankton production was favored during that decade due to increased nutrient uprise to surface by strong winter vertical mixing. In the 1990s salinity decreased probably to the detriment of vertical mixing and carrying capacity of the system. These results stress the role of salinity as physical forcing on water-column stability, in the NW Mediterranean, and the importance of winter conditions to determine the state of pelagic ecosystems. [Copyright &y& Elsevier] |
| Copyright of Journal of Marine Systems is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 60663375 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Zooplankton long-term changes in the NW Mediterranean Sea: Decadal periodicity forced by winter hydrographic conditions related to large-scale atmospheric changes? – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22García-Comas%2C+Carmen%22">García-Comas, Carmen</searchLink><relatesTo>1,2,3</relatesTo><i> carmencomas@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Stemmann%2C+Lars%22">Stemmann, Lars</searchLink><relatesTo>1,2</relatesTo><i> stemmann@obs-vlfr.fr</i><br /><searchLink fieldCode="AR" term="%22Ibanez%2C+Frédéric%22">Ibanez, Frédéric</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Berline%2C+Léo%22">Berline, Léo</searchLink><relatesTo>1,2,4</relatesTo><br /><searchLink fieldCode="AR" term="%22Mazzocchi%2C+Maria+Grazia%22">Mazzocchi, Maria Grazia</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Gasparini%2C+Stéphane%22">Gasparini, Stéphane</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Picheral%2C+Marc%22">Picheral, Marc</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Gorsky%2C+Gabriel%22">Gorsky, Gabriel</searchLink><relatesTo>1,2</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Marine+Systems%22">Journal of Marine Systems</searchLink>. Sep2011, Vol. 87 Issue 3/4, p216-226. 11p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Zooplankton%22">Zooplankton</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrography%22">Hydrography</searchLink><br /><searchLink fieldCode="DE" term="%22Climate+change%22">Climate change</searchLink><br /><searchLink fieldCode="DE" term="%22Cold+weather+conditions%22">Cold weather conditions</searchLink><br /><searchLink fieldCode="DE" term="%22North+Atlantic+oscillation%22">North Atlantic oscillation</searchLink><br /><searchLink fieldCode="DE" term="%22Salinity%22">Salinity</searchLink><br /><searchLink fieldCode="DE" term="%22Principal+components+analysis%22">Principal components analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Time+series+analysis%22">Time series analysis</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Ligurian+Sea%22">Ligurian Sea</searchLink><br /><searchLink fieldCode="DE" term="%22Mediterranean+Sea%22">Mediterranean Sea</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract: Copepod, chaetognath, decapod larva, siphonophore and jellyfish monthly abundances, from 1974 to 2003 at Point B (northwestern Mediterranean), were obtained with the ZooScan. Principal component analysis (PCA) was performed on zooplankton, and another PCA on local environment. Almost-decadal periods (1974–1982, 1983–1991, 1992–1999, and 2000–2003) were distinguished in the 1st PC of zooplankton, and that of local environment (1974–1980, 1981–1991, 1992–1998, and 1999–2003). The 1st PC of local environment was correlated with winter North Atlantic Oscillation (NAO) until early 1990s. In early 1980s, all groups increased and the majority of the decade abundances were above the long-term average for most groups. In the 1990s, all decreased, and in early 2000s they increased. This synchrony suggests bottom-up control as main mechanism structuring these groups. The 1980s were characterized by low winter temperature and high salinity. We hypothesize that phytoplankton production was favored during that decade due to increased nutrient uprise to surface by strong winter vertical mixing. In the 1990s salinity decreased probably to the detriment of vertical mixing and carrying capacity of the system. These results stress the role of salinity as physical forcing on water-column stability, in the NW Mediterranean, and the importance of winter conditions to determine the state of pelagic ecosystems. [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Marine Systems is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.jmarsys.2011.04.003 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 11 StartPage: 216 Subjects: – SubjectFull: Zooplankton Type: general – SubjectFull: Hydrography Type: general – SubjectFull: Climate change Type: general – SubjectFull: Cold weather conditions Type: general – SubjectFull: North Atlantic oscillation Type: general – SubjectFull: Salinity Type: general – SubjectFull: Principal components analysis Type: general – SubjectFull: Time series analysis Type: general – SubjectFull: Ligurian Sea Type: general – SubjectFull: Mediterranean Sea Type: general Titles: – TitleFull: Zooplankton long-term changes in the NW Mediterranean Sea: Decadal periodicity forced by winter hydrographic conditions related to large-scale atmospheric changes? Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: García-Comas, Carmen – PersonEntity: Name: NameFull: Stemmann, Lars – PersonEntity: Name: NameFull: Ibanez, Frédéric – PersonEntity: Name: NameFull: Berline, Léo – PersonEntity: Name: NameFull: Mazzocchi, Maria Grazia – PersonEntity: Name: NameFull: Gasparini, Stéphane – PersonEntity: Name: NameFull: Picheral, Marc – PersonEntity: Name: NameFull: Gorsky, Gabriel IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 09 Text: Sep2011 Type: published Y: 2011 Identifiers: – Type: issn-print Value: 09247963 Numbering: – Type: volume Value: 87 – Type: issue Value: 3/4 Titles: – TitleFull: Journal of Marine Systems Type: main |
| ResultId | 1 |
