Vertical export of marine pelagic protists in an ice-free high-Arctic fjord (Adventfjorden, West Spitsbergen) throughout 2011-2012

2019 ◽  
Vol 83 (1) ◽  
pp. 65-82 ◽  
Author(s):  
M Marquardt ◽  
R Skogseth ◽  
I Wiedmann ◽  
A Vader ◽  
M Reigstad ◽  
...  
Keyword(s):  
High Arctic ◽  
Arctic Fjord ◽  
Vertical Export ◽  
West Spitsbergen

scholarly journals Spring Succession and Vertical Export of Diatoms and IP25 in a Seasonally Ice-Covered High Arctic Fjord

2018 ◽  
Vol 6 ◽  
Author(s):  
Audrey Limoges ◽  
Guillaume Massé ◽  
Kaarina Weckström ◽  
Michel Poulin ◽  
Marianne Ellegaard ◽  
...  
Keyword(s):  
High Arctic ◽  
Arctic Fjord ◽  
Vertical Export

The annual planktonic protist community structure in an ice-free high Arctic fjord (Adventfjorden, West Spitsbergen)

2017 ◽  
Vol 169 ◽  
pp. 61-72 ◽  
Author(s):  
A.M. Kubiszyn ◽  
J.M. Wiktor ◽  
J.M. Wiktor ◽  
C. Griffiths ◽  
S. Kristiansen ◽  
...  
Keyword(s):  
Community Structure ◽  
High Arctic ◽  
Arctic Fjord ◽  
West Spitsbergen

scholarly journals Glacial and depth influence on sublittoral macroalgal standing stock in a high-Arctic fjord

2020 ◽  
Vol 194 ◽  
pp. 104045
Author(s):  
Marta Ronowicz ◽  
Maria Włodarska-Kowalczuk ◽  
Piotr Kukliński
Keyword(s):  
Standing Stock ◽  
High Arctic ◽  
Arctic Fjord

Biochemical composition of particles shape particle-attached bacterial community structure in a high Arctic fjord

2019 ◽  
Vol 102 ◽  
pp. 581-592 ◽  
Author(s):  
Anand Jain ◽  
Kottekkatu Padinchati Krishnan ◽  
Archana Singh ◽  
Femi Anna Thomas ◽  
Nazira Begum ◽  
...  
Keyword(s):  
Community Structure ◽  
Bacterial Community ◽  
Biochemical Composition ◽  
Bacterial Community Structure ◽  
High Arctic ◽  
Arctic Fjord

scholarly journals Unsynchronised and synchronised vertical migration of zooplankton in a high Arctic fjord

2006 ◽  
Vol 51 (6) ◽  
pp. 2586-2599 ◽  
Author(s):  
Finlo R. Cottier ◽  
Geraint A. Tarling ◽  
Anette Wold ◽  
Stig Falk-Petersen
Keyword(s):  
Vertical Migration ◽  
High Arctic ◽  
Arctic Fjord

Lipid composition and trophic relationships of krill species in a high Arctic fjord

Polar Biology ◽  
2014 ◽  
Vol 39 (10) ◽  
pp. 1803-1817 ◽  
Author(s):  
Kim Huenerlage ◽  
Martin Graeve ◽  
Friedrich Buchholz
Keyword(s):  
Lipid Composition ◽  
High Arctic ◽  
Trophic Relationships ◽  
Arctic Fjord

scholarly journals A marine zooplankton community vertically structured by light across diel to interannual timescales

2021 ◽  
Vol 17 (2) ◽  
pp. 20200810
Author(s):  
Laura Hobbs ◽  
Neil S. Banas ◽  
Jonathan H. Cohen ◽  
Finlo R. Cottier ◽  
Jørgen Berge ◽  
...  
Keyword(s):  
Predation Risk ◽  
Zooplankton Community ◽  
Foraging Strategy ◽  
High Arctic ◽  
Visual Predation ◽  
Marine Zooplankton ◽  
Arctic Fjord ◽  
Change Impact ◽  
Extreme Seasonality ◽  
The Vertical Distribution

The predation risk of many aquatic taxa is dominated by visually searching predators, commonly a function of ambient light. Several studies propose that changes in visual predation will become a major climate-change impact on polar marine ecosystems. The High Arctic experiences extreme seasonality in the light environment, from 24 h light to 24 h darkness, and therefore provides a natural laboratory for studying light and predation risk over diel to seasonal timescales. Here, we show that zooplankton (observed using acoustics) in an Arctic fjord position themselves vertically in relation to light. A single isolume (depth-varying line of constant light intensity, the value of which is set at the lower limit of photobehaviour reponses of Calanus spp. and krill) forms a ceiling on zooplankton distribution. The vertical distribution is structured by light across timescales, from the deepening of zooplankton populations at midday as the sun rises in spring, to the depth to which zooplankton ascend to feed during diel vertical migration. These results suggest that zooplankton might already follow a foraging strategy that will keep visual predation risk roughly constant under changing light conditions, such as those caused by the reduction of sea ice, but likely with energetic costs such as lost feeding opportunities as a result of altered habitat use.

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