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Environmental control of mesozooplankton community structure in the Seine estuary (English Channel) ArchiMer
Mouny, P; Dauvin, Jc.
This paper is the first to describe the spatio-temporal changes of mesozooplankton in the Seine estuary. Monthly samples were collected along the estuary in 1996 in order to analyse the seasonal changes of the mesozooplankton community and to identify the major environmental parameters that may influence the spatial distribution of zooplankton in this megatidal estuary. Statistical analysis (canonical correspondence analysis) showed that salinity was the main factor correlated with the longitudinal distribution of zooplankton. Marine species (Temora longicornis, barnacle larvae...) were located in the outer part of the estuary, while more oligohaline species (Eurytemora affinis) were recorded in the inner part of the estuary. A mixed zone was characterised...
Tipo: Text Palavras-chave: Zooplancton; Eurytemora affinis; Cycle annuel; Facteurs environnementaux; Estuaire de la Seine; Zooplankton; Eurytemora affinis; Annual cycle; Environmental parameters; Seine estuary.
Ano: 2002 URL: http://archimer.ifremer.fr/doc/00322/43325/42929.pdf
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Global expressions for seasonal temperatures of the sea surface and ambient air - The influence of tidal currents and water depth ArchiMer
Prandle, D.
A 'single point' coupled ocean-atmosphere model is formulated to study seasonal temperature cycles with particular application to shelf seas. The simplified atmospheric module is consistent with the physical processes described by Gill [4] while the vertical exchange of heat in the ocean module is determined via a turbulence closure model. The various empirical coefficients in the atmospheric module were determined by fitting the model output to North Atlantic observational data over the latitude range 0 degrees to 65 degrees N. The model is then applied to the shallow, strongly tidal North Sea. The general validity of the model is demonstrated, thereby indicating that the seasonal cycles of the sea surface, T-s, and ambient air, T-a, are generally...
Tipo: Text Palavras-chave: Température; Cycle annuel; Couplage océan-atmosphère; Mer bordière; Mer du Nord; Temperature; Annual cycle; Atmosphere-ocean coupling; Shelf seas; North Sea.
Ano: 1998 URL: http://archimer.ifremer.fr/doc/00325/43665/43205.pdf
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POTENTIALLY HARMFUL CYANOBACTERIA IN OYSTER BANKS OF TÉRMINOS LAGOON, SOUTHEASTERN GULF OF MEXICO Acta biol.Colomb.
POOT-DELGADO,Carlos Antonio; OKOLODKOV,Yuri B.; AKÉ-CASTILLO,José Antolin; RENDÓN von OSTEN.,Jaime.
ABSTRACT Cyanobacteria inhabit hypersaline, marine and freshwater environments. Some toxic and non-toxic species can form harmful blooms. The aim of this study was to identify potentially harmful cyanobacterial species in the oyster banks of Términos Lagoon, the southeastern Gulf of Mexico. Six sample sites (up to 2-m depth) were monitored monthly from August 2012 to September 2013. Water temperature, salinity, pH, dissolved oxygen saturation (% DO), inorganic nutrients and abundance of cyanobacteria were determined. Temperature and salinity were characterized by marked seasonal differences (26.8 to 30.6 °C and 6.1 to 19.5, respectively). The pH values (ranging from 7.1 to 8.4) and the % DO (88.4 to 118.2 %) suggest a predominance of photosynthetic...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Annual cycle; Cyanobacteria; Eutrophication; Gulf of Mexico; Harmful algal blooms.
Ano: 2018 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2018000100051
Registros recuperados: 3
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