Multiscale spatial variability in epibiont assemblage structure associated with stipes of kelp Laminaria hyperborea in the northeast Atlantic

2021 ◽  
Author(s):  
NG King ◽  
PJ Moore ◽  
C Wilding ◽  
HL Jenkins ◽  
DA Smale
Keyword(s):  
Spatial Variability ◽  
Assemblage Structure ◽  
Laminaria Hyperborea ◽  
Northeast Atlantic

scholarly journals Environmental factors influencing primary productivity of the forest-forming kelp Laminaria hyperborea in the northeast Atlantic

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Dan A. Smale ◽  
Albert Pessarrodona ◽  
Nathan King ◽  
Michael T. Burrows ◽  
Anna Yunnie ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Primary Productivity ◽  
Laminaria Hyperborea ◽  
Northeast Atlantic ◽  
Factors Influencing

Seasonal and spatial variability of the CO2 system parameters in the Northeast Atlantic based on measurements from a surface ocean observation platform.

2021 ◽  
Author(s):  
David Curbelo Hernández ◽  
Melchor González Dávila ◽  
Aridane González González ◽  
David González Santana ◽  
Juana Magdalena Santana Casiano
Keyword(s):  
Spatial Variability ◽  
Continental Shelf ◽  
Inorganic Carbon ◽  
Coastal Upwelling ◽  
Seasonal Temperature ◽  
Entire Area ◽  
Northeast Atlantic ◽  
System Parameters ◽  
The North ◽  
Effect Ratio

<p>The seasonal and spatial variability of the CO<sub>2</sub> system parameters and CO<sub>2</sub> air-sea exchange was studied in the Northeast Atlantic Ocean between the northwest African coastal upwelling and the oligotrophic open-ocean waters of the North Atlantic subtropical gyre. Data was collected aboard a volunteer observing ship (VOS) from February 2019 to February 2020. The seasonal and spatial variability of CO<sub>2 </sub>fugacity in seawater (fCO<sub>2,sw</sub>) was strongly driven by the seasonal temperature variation, which increased with latitude and was lower throughout the year in coastal regions where the upwelling and offshore transport was more intense. The thermal to biological effect ratio (T/B) was approximately 2, with minimum values along the African coastline related to higher biological activity in the upwelled waters. The fCO<sub>2,sw</sub> increased from winter to summer by 11.84 ± 0.28 µatmºC<sup>-1</sup> on the inter-island routes and by 11.71 ± 0.25 µatmºC<sup>-1</sup> along the northwest African continental shelf. The seasonality of total inorganic carbon (C<sub>T</sub>) normalized to constant salinity of 36.7 (NC<sub>T</sub>) was studied throughout the region. The effect of biological processes and calcification/dissolution on NC<sub>T</sub> between February and October represented >90% of the reduction of inorganic carbon while air-sea exchange described <6%. The seasonality of air-sea CO<sub>2</sub> exchange was controlled by temperature. The surface waters of the entire region acted as a CO<sub>2</sub> sink during the cold months and as a CO<sub>2 </sub>source during the warm months. The Canary basin acted as a net sink of -0.26 ± 0.04 molC m<sup>-2</sup> yr<sup>-1</sup>. The northwest African continental shelf behaved as a stronger sink at -0.48 ± 0.09 molC m<sup>-2</sup> yr<sup>-1</sup>. The calculated average CO<sub>2</sub> flux for the entire area was -2.65 ± 0.44 TgCO<sub>2</sub> yr<sup>-1</sup> (-0.72 ± 0.12 TgC yr<sup>-1</sup>).<strong> </strong></p>

Spatial variability induces generalization in contextual cueing.

2020 ◽  
Vol 46 (12) ◽  
pp. 2295-2313
Author(s):  
Yoko Higuchi ◽  
Yoshiyuki Ueda ◽  
Kazuhisa Shibata ◽  
Jun Saiki
Keyword(s):  
Spatial Variability ◽  
Contextual Cueing

Rockfish assemblage structure and spawning locations in southern California identified through larval sampling

2016 ◽  
Vol 547 ◽  
pp. 177-192 ◽  
Author(s):  
AR Thompson ◽  
JR Hyde ◽  
W Watson ◽  
DC Chen ◽  
LW Guo
Keyword(s):  
Southern California ◽  
Assemblage Structure

Spatial variability in responses to environmental conditions in Southern Hemisphere long-finned pilot whales

2019 ◽  
Vol 629 ◽  
pp. 207-218 ◽  
Author(s):  
V Hamilton ◽  
K Evans ◽  
B Raymond ◽  
E Betty ◽  
MA Hindell
Keyword(s):  
Spatial Variability ◽  
Southern Hemisphere ◽  
Environmental Conditions ◽  
Pilot Whales
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