Prokaryotic community and diversity in coastal surface waters along the Western Antarctic Peninsula

Polar Science ◽  
2021 ◽  
pp. 100764
Author(s):  
Rafet Cagri Ozturk ◽  
Ali Muzaffer Feyzioglu ◽  
Ilhan Altinok
Keyword(s):  
Antarctic Peninsula ◽  
Surface Waters ◽  
Western Antarctic Peninsula ◽  
Prokaryotic Community

scholarly journals Controls on dissolved and particulate iron distributions in surface waters of the Western Antarctic Peninsula shelf

2017 ◽  
Vol 196 ◽  
pp. 81-97 ◽  
Author(s):  
Amber L. Annett ◽  
Jessica N. Fitzsimmons ◽  
Marie J.M. Séguret ◽  
Maria Lagerström ◽  
Michael P. Meredith ◽  
...  
Keyword(s):  
Antarctic Peninsula ◽  
Surface Waters ◽  
Western Antarctic Peninsula ◽  
Particulate Iron

scholarly journals Nearshore mixing and nutrient delivery along the western Antarctic Peninsula

2017 ◽  
Vol 29 (5) ◽  
pp. 397-409 ◽  
Author(s):  
D. Reide Corbett ◽  
Jared Crenshaw ◽  
Kimberly Null ◽  
Richard N. Peterson ◽  
Leigha E. Peterson ◽  
...  
Keyword(s):  
Southern Ocean ◽  
Antarctic Peninsula ◽  
Surface Waters ◽  
Coastal Waters ◽  
Global Climate ◽  
Western Antarctic Peninsula ◽  
Carbon Cycles ◽  
Column Dynamics ◽  
Mixing Rates ◽  
Seawater Samples

AbstractThe surface waters of the Southern Ocean play a key role in the global climate and carbon cycles by promoting growth of some of the world’s largest phytoplankton blooms. Several studies have emphasized the importance of glacial and sediment inputs of Fe that fuel the primary production of the Fe-limited Southern Ocean. Although the fertile surface waters along the shelf of the western Antarctic Peninsula (WAP) are influenced by large inputs of freshwater, this freshwater may take multiple pathways (e.g. calving, streams, groundwater discharge) with different degrees of water-rock interactions leading to variable Fe flux to coastal waters. During the summers of 2012–13 and 2013–14, seawater samples were collected along the WAP, near Anvers Island, to observe water column dynamics in nearshore and offshore waters. Tracers (223,224Ra, 222Rn, 18O, 2H) were used to evaluate the source and transport of water and nutrients in coastal fjords and across the shelf. Coastal waters are compared across two field seasons, with increased freshwater observed during 2014. Horizontal mixing rates of water masses along the WAP ranged from 110–3600 m2 s-1. These mixing rates suggest a rapid transport mechanism for moving meltwater offshore.

Aerosol Marine Primary Carbohydrates and Atmospheric Transformation in the Western Antarctic Peninsula

2021 ◽  
Author(s):  
Sebastian Zeppenfeld ◽  
Manuela van Pinxteren ◽  
Dominik van Pinxteren ◽  
Heike Wex ◽  
Elisa Berdalet ◽  
...  
Keyword(s):  
Antarctic Peninsula ◽  
Western Antarctic Peninsula

scholarly journals Correction to: Summer phyto‑ and bacterioplankton communities during low and high productivity scenarios in the Western Antarctic Peninsula

Polar Biology ◽  
2021 ◽  
Author(s):  
Sebastián Fuentes ◽  
José Ignacio Arroyo ◽  
Susana Rodriguez‑Marconi ◽  
Italo Masotti ◽  
Tomás Alarcon‑Schumacher ◽  
...  
Keyword(s):  
Antarctic Peninsula ◽  
Western Antarctic Peninsula ◽  
High Productivity ◽  
Bacterioplankton Communities

scholarly journals Evidence of resource partitioning between humpback and minke whales around the western Antarctic Peninsula

2009 ◽  
Vol 25 (2) ◽  
pp. 402-415 ◽  
Author(s):  
Ari S. Friedlaender ◽  
Gareth L. Lawson ◽  
Patrick N. Halpin
Keyword(s):  
Antarctic Peninsula ◽  
Resource Partitioning ◽  
Western Antarctic Peninsula ◽  
Minke Whales

Phytoplankton in the embayments of King George Island (Antarctic Peninsula): a review with emphasis on diatoms

Polar Record ◽  
2018 ◽  
Vol 54 (2) ◽  
pp. 158-175 ◽  
Author(s):  
Priscila Kienteca Lange ◽  
Ryszard Ligowski ◽  
Denise Rivera Tenenbaum
Keyword(s):  
Antarctic Peninsula ◽  
Early Summer ◽  
Western Antarctic Peninsula ◽  
King George Island ◽  
Accurate Identification ◽  
Phytoplankton Assemblages ◽  
Marine Food Web ◽  
Planktonic Diatoms ◽  
Local Material ◽  
Marine Food

ABSTRACTConsidering that phytoplankton assemblages are good bioindicators of environmental conditions, the sensitivity of the Western Antarctic Peninsula (WAP) to climate change, and the importance of some areas of its islands as Antarctic Specially Managed Areas, this work assembles published datasets on phytoplankton biodiversity and ecology in confined coastal areas (embayments) of King George Island, WAP. Over 33 years (1980–2013), 415 species from 122 genera have been identified to species level, being mostly diatoms (371 species), with 10 new species described with local material (6 diatoms, 4 cyanobacteria). The importance of diatoms was indicated by the frequent occurrence of Corethron pennatum, Pseudogomphonema kamtshaticum, and abundant benthic genera in the plankton (e.g. Navicula, Cocconeis). The increased contribution of dinoflagellates after 2010 suggests marked changes in the water column. Early-summer blooms differ between the bays' eastern and western shores, with terrestrial melting and wind-driven upwelling inducing the dominance of benthic species at eastern shores, whereas planktonic diatoms (Thalassiosira, Pseudo-nizschia, and Chaetoceros) are most abundant along western shores and central areas. The importance of an accurate identification of organisms that are becoming key ecological components of the region is discussed, as recent changes in the microflora may affect the entire marine food web.

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