scholarly journals Seasonal Succession of Free-Living Bacterial Communities in Coastal Waters of the Western Antarctic Peninsula

2016 ◽  
Vol 7 ◽  
Author(s):  
Catherine M. Luria ◽  
Linda A. Amaral-Zettler ◽  
Hugh W. Ducklow ◽  
Jeremy J. Rich
Keyword(s):  
Antarctic Peninsula ◽  
Coastal Waters ◽  
Bacterial Communities ◽  
Seasonal Succession ◽  
Western Antarctic Peninsula ◽  
Free Living

Abundance of Type A killer whales (Orcinus orca) in the coastal waters off the western Antarctic Peninsula

Polar Biology ◽  
2019 ◽  
Vol 42 (8) ◽  
pp. 1477-1488 ◽  
Author(s):  
Holly Fearnbach ◽  
John W. Durban ◽  
David K. Ellifrit ◽  
Robert L. Pitman
Keyword(s):  
Antarctic Peninsula ◽  
Coastal Waters ◽  
Type A ◽  
Orcinus Orca ◽  
Western Antarctic Peninsula ◽  
Killer Whales

Microbial control of bromocarbon concentrations in coastal waters of the western Antarctic Peninsula

2013 ◽  
Vol 151 ◽  
pp. 35-46 ◽  
Author(s):  
C. Hughes ◽  
M. Johnson ◽  
R. Utting ◽  
S. Turner ◽  
G. Malin ◽  
...  
Keyword(s):  
Antarctic Peninsula ◽  
Coastal Waters ◽  
Microbial Control ◽  
Western Antarctic Peninsula

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 Seasonal Succession of Bacterial Communities in Three Eutrophic Freshwater Lakes

2021 ◽  
Vol 18 (13) ◽  
pp. 6950
Author(s):  
Bin Ji ◽  
Cheng Liu ◽  
Jiechao Liang ◽  
Jian Wang
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Water Temperature ◽  
Bacterial Communities ◽  
Seasonal Succession ◽  
Lake Eutrophication ◽  
Urban Lake ◽  
Freshwater Lakes ◽  
Functional Prediction ◽  
Bacterial Indicator

Urban freshwater lakes play an indispensable role in maintaining the urban environment and are suffering great threats of eutrophication. Until now, little has been known about the seasonal bacterial communities of the surface water of adjacent freshwater urban lakes. This study reported the bacterial communities of three adjacent freshwater lakes (i.e., Tangxun Lake, Yezhi Lake and Nan Lake) during the alternation of seasons. Nan Lake had the best water quality among the three lakes as reflected by the bacterial eutrophic index (BEI), bacterial indicator (Luteolibacter) and functional prediction analysis. It was found that Alphaproteobacteria had the lowest abundance in summer and the highest abundance in winter. Bacteroidetes had the lowest abundance in winter, while Planctomycetes had the highest abundance in summer. N/P ratio appeared to have some relationships with eutrophication. Tangxun Lake and Nan Lake with higher average N/P ratios (e.g., N/P = 20) tended to have a higher BEI in summer at a water temperature of 27 °C, while Yezhi Lake with a relatively lower average N/P ratio (e.g., N/P = 14) tended to have a higher BEI in spring and autumn at a water temperature of 9–20 °C. BEI and water temperature were identified as the key parameters in determining the bacterial communities of lake water. Phosphorus seemed to have slightly more impact on the bacterial communities than nitrogen. It is expected that this study will help to gain more knowledge on urban lake eutrophication.

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