scholarly journals Trophic pathways of phytoplankton size classes through the zooplankton food web over the spring transition period in the north-west Mediterranean Sea

2017 ◽  
Vol 122 (8) ◽  
pp. 6309-6324 ◽  
Author(s):  
Brian P. V. Hunt ◽  
François Carlotti ◽  
Katty Donoso ◽  
Marc Pagano ◽  
Fabrizio D'Ortenzio ◽  
...  
Keyword(s):  
Food Web ◽  
Mediterranean Sea ◽  
Transition Period ◽  
North West ◽  
Size Classes ◽  
The North ◽  
Trophic Pathways ◽  
Spring Transition ◽  
Phytoplankton Size

scholarly journals Probing the Rare Biosphere of the North-West Mediterranean Sea: An Experiment with High Sequencing Effort

PLoS ONE ◽  
2016 ◽  
Vol 11 (7) ◽  
pp. e0159195 ◽  
Author(s):  
Bibiana G. Crespo ◽  
Philip J. Wallhead ◽  
Ramiro Logares ◽  
Carlos Pedrós-Alió
Keyword(s):  
Mediterranean Sea ◽  
North West ◽  
The North ◽  
Rare Biosphere

High Contribution of SAR11 to Microbial Activity in the North West Mediterranean Sea

2011 ◽  
Vol 63 (2) ◽  
pp. 324-333 ◽  
Author(s):  
Mélissa Laghdass ◽  
Philippe Catala ◽  
Jocelyne Caparros ◽  
Louise Oriol ◽  
Philippe Lebaron ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Microbial Activity ◽  
North West ◽  
The North ◽  
High Contribution

scholarly journals Bioluminescence and fluorescence of three sea pens in the north-west Mediterranean sea

2020 ◽  
Author(s):  
Warren R Francis ◽  
Anaïs Sire de Vilar
Keyword(s):  
Mediterranean Sea ◽  
Dark Adaptation ◽  
Fluorescence Spectra ◽  
Green Light ◽  
Emission Spectra ◽  
North West ◽  
The North ◽  
Light Production ◽  
Long Time ◽  
Basic Parameters

AbstractBioluminescence of Mediterranean sea pens has been known for a long time, but basic parameters such as the emission spectra are unknown. Here we examined bioluminescence in three species of Pennatulacea, Pennatula rubra, Pteroeides griseum, and Veretillum cynomorium. Following dark adaptation, all three species could easily be stimulated to produce green light. All species were also fluorescent, with bioluminescence being produced at the same sites as the fluorescence. The shape of the fluorescence spectra indicates the presence of a GFP closely associated with light production, as seen in Renilla. Our videos show that light proceeds as waves along the colony from the point of stimulation for all three species, as observed in many other octocorals. Features of their bioluminescence are strongly suggestive of a “burglar alarm” function.

Patterns of spatial variability of seagrass epiphytes in the north-west Mediterranean Sea

2007 ◽  
Vol 151 (6) ◽  
pp. 2025-2035 ◽  
Author(s):  
David Balata ◽  
Ugo Nesti ◽  
Luigi Piazzi ◽  
Francesco Cinelli
Keyword(s):  
Spatial Variability ◽  
Mediterranean Sea ◽  
North West ◽  
The North

scholarly journals Time-clustering of wave storms in the Mediterranean Sea

2016 ◽  
Author(s):  
Giovanni Besio ◽  
Riccardo Briganti ◽  
Alessandro Romano ◽  
Lorenzo Mentaschi ◽  
Paolo De Girolamo
Keyword(s):  
Spatial Distribution ◽  
Mediterranean Sea ◽  
Time Scales ◽  
Horizontal Resolution ◽  
North West ◽  
Temporal Sampling ◽  
The North ◽  
Allan Factor ◽  
Long Time ◽  
The Mediterranean

Abstract. In this contribution we identify storm time-clustering in the Mediterranean Sea through the analysis of the spatial distribution of the Allan Factor. This parameter is evaluated from long time series of wave height provided by means of oceanographic buoy measurements and hindcast re-analysis spanning in the period 1979–2014 and characterized by a horizontal resolution of about 0.1 degree in longitude and latitude and a temporal sampling of one hour (Mentaschi et a., 2015). Results reveal clustering mainly for two distinct ranges of time scales. The first range of time scales (12 hrs to 50 days) is associated to sequences of storms generated by the persistence of the same meteorological system. The second range, associated to timescales beteween 50 and 100 days, reveals seasonal fluctuations. Transitional regimes are present at some locations in the basin. The spatial distribution of the Allan Factor reveals that the clustering at smaller time scales is present in the North-West of the Mediterranean, while clustering at larger scales is observed in the whole basin. This analysis is believed to be important to assess the local increased flood and coastal erosion risks due to storm clustering.

Plankton succession and assemblage structure in two neighbouring littoral ecosystems in the north-west Mediterranean Sea

2005 ◽  
Vol 56 (1) ◽  
pp. 69 ◽  
Author(s):  
J.-L. Jamet ◽  
N. Jean ◽  
G. Bogé ◽  
S. Richard ◽  
D. Jamet
Keyword(s):  
Mediterranean Sea ◽  
Physical Environment ◽  
Human Activities ◽  
Early Spring ◽  
North West ◽  
Classical Scheme ◽  
The North ◽  
Seasonal Factors ◽  
Northern Winter ◽  
Plankton Communities

We studied seasonal variations in bacterial abundance and succession in phyto- and zooplankton assemblages (particularly small taxa) in two neighbouring shallow bays (near Toulon, Mediterranean Sea, France): Little Bay (polluted, eutrophic), and Niel Bay (less polluted, oligotrophic). In Little Bay, bacteria developed in northern spring and phytoplankton (Dinophyceae > 20 µm) in late northern winter–early spring. Zooplankton levels peaked at the end of northern spring and in autumn; this community was dominated by Oithona nana. In Niel Bay, bacterial levels peaked during northern spring and autumn. Phytoplankton (Dinophyceae, Bacillariophyceae) abundance was low and only peaked in June. Zooplankton levels peaked in northern mid-summer. Little Bay was influenced more by the land and by human activities than by the sea. Seasonal factors (e.g. water temperature) and sudden influences (e.g. rain and, indirectly, Mistral wind) may have modified the succession of the plankton communities in this bay. Successions did not follow Margalef’s model and the classical scheme for zooplankton. Conversely, Niel Bay functioning and plankton assemblages were most influenced by the physical environment of the sea than by the land or by human activities. Successions were closely related to the classical scheme of the Mediterranean Sea.

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