The Zooplankton of the Upper Waters of the Bermuda Area of the North Atlantic PDF Download
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Author: Hilary B.. Moore
Publisher:
ISBN:
Category : Zooplankton
Languages : en
Pages : 97
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Book Description
Author: Hilary B.. Moore
Publisher:
ISBN:
Category : Zooplankton
Languages : en
Pages : 97
Get Book Here
Book Description
Author: Hilary B. Moore
Publisher:
ISBN:
Category : Marine animals
Languages : en
Pages : 97
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Book Description
Author: Georgiana Baxter Deevey
Publisher:
ISBN:
Category : Marine biology
Languages : en
Pages : 408
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Book Description
Author: Hilary B. Moore
Publisher:
ISBN:
Category :
Languages : en
Pages : 97
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Author:
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 818
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Author:
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 200
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Book Description
Author:
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 44
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Author:
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 790
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Author: Hossem Edine Smati
Publisher:
ISBN:
Category :
Languages : en
Pages : 169
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Book Description
Physical forcing drives the space and time discontinuity (patchiness) of plankton in the ocean. The thesis was focused on the role of these forcing on the zooplankton, studied using both acoustic and traditional methods with net sampling. The study was based on two examples. The first one concerns the northwestern Sargasso Sea where high resolution time-series data on 0-200m macrozooplankton abundance and distribution off Bermuda was estimated from volume backscattering strength (Sv) measured with a 153-Khz ADCP. Three types of eddies were identified: a productive cyclonic eddy, the periphery of a mode water eddy, and the periphery of an anticyclonic eddy. Sv values increased during passage of theses eddies, with a more pronounced increase associated with the edge of the cyclonic and the anticyclonic eddies, suggesting a significant biological response to localized upwelling in the high velocity boundary of these eddies. In the second example, spatial and temporal distribution of zooplankton off New Caledonia was studied during two multidisciplinary cruises in 2011. Zooplankton variability was assessed using net sampling together with acoustic measurements (shipborne ADCP, scientific echosounder and TAPS). Higher amplitudes of diel vertical migration (DVM) of zooplankton were associated with higher abundance of large zooplankton and cold waters to the south of the study area, while lower DVM amplitudes in the north were associated with warmer waters and higher abundance of small organisms. These acoustic measurements clearly evidenced the role of physical forcing, particularly mesoscale features, in shaping zooplankton space and time distribution.
Author: P A Kirkpatrick
Publisher: BRILL
ISBN: 9004627553
Category : Science
Languages : en
Pages : 160
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