Acoustic analysis of crabeater seal (Lobodon carcinophaga) vocalizations in the Southern Kerguelen Plateau region of East Antarctica

2021 ◽  
Vol 150 (5) ◽  
pp. 3353-3361
Author(s):  
Harsha Nagaraj ◽  
Kylie Owen ◽  
Mary-Anne Lea ◽  
Brian S Miller
Keyword(s):  
Acoustic Analysis ◽  
East Antarctica ◽  
Kerguelen Plateau ◽  
Plateau Region ◽  
Crabeater Seal

Impact of the Agulhas Return Current on the oceanography of the Kerguelen Plateau region, Southern Ocean, over the last 40 kyrs

2021 ◽  
Vol 251 ◽  
pp. 106711
Author(s):  
M. Civel-Mazens ◽  
X. Crosta ◽  
G. Cortese ◽  
E. Michel ◽  
A. Mazaud ◽  
...  
Keyword(s):  
Southern Ocean ◽  
Kerguelen Plateau ◽  
Plateau Region ◽  
Return Current

Antarctic Polar Front migrations in the Kerguelen Plateau region, Southern Ocean, over the past 360 kyrs

2021 ◽  
pp. 103526
Author(s):  
M. Civel-Mazens ◽  
X. Crosta ◽  
G. Cortese ◽  
E. Michel ◽  
A. Mazaud ◽  
...  
Keyword(s):  
Southern Ocean ◽  
Polar Front ◽  
Antarctic Polar Front ◽  
Kerguelen Plateau ◽  
Plateau Region ◽  
The Past

SHIPBOARD LINE TRANSECT SURVEYS OF CRABEATER SEAL ABUNDANCE IN THE PACK-ICE OFF EAST ANTARCTICA: EVALUATION OF ASSUMPTIONS

2004 ◽  
Vol 20 (3) ◽  
pp. 602-620 ◽  
Author(s):  
Colin Southwell ◽  
Bill De La Mare ◽  
David Borchers ◽  
Louise Burt
Keyword(s):  
East Antarctica ◽  
Line Transect ◽  
Crabeater Seal ◽  
Pack Ice

scholarly journals Taking account of dependent species in management of the Southern Ocean krill fishery: estimating crabeater seal abundance off east Antarctica

2008 ◽  
Vol 45 (2) ◽  
pp. 622-631 ◽  
Author(s):  
Colin Southwell ◽  
Charles G. M. Paxton ◽  
David Borchers ◽  
Peter Boveng ◽  
William de la Mare
Keyword(s):  
Southern Ocean ◽  
East Antarctica ◽  
Crabeater Seal

Mesopelagic organic carbon remineralization in the Kerguelen Plateau region tracked by biogenic particulate Ba

2008 ◽  
Vol 55 (5-7) ◽  
pp. 868-879 ◽  
Author(s):  
S.H.M. Jacquet ◽  
F. Dehairs ◽  
N. Savoye ◽  
I. Obernosterer ◽  
U. Christaki ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Kerguelen Plateau ◽  
Plateau Region ◽  
Carbon Remineralization

scholarly journals Characterizing Marine Heatwaves in the Kerguelen Plateau Region

2021 ◽  
Vol 7 ◽  
Author(s):  
Zimeng Su ◽  
Gabriela S. Pilo ◽  
Stuart Corney ◽  
Neil J. Holbrook ◽  
Mao Mori ◽  
...  
Keyword(s):  
Southern Oscillation ◽  
Hot Spot ◽  
Austral Summer ◽  
Southern Annular Mode ◽  
Marine Biodiversity ◽  
Kerguelen Plateau ◽  
Plateau Region ◽  
Potential Predictability ◽  
The North ◽  
Temperature Signal

Marine heatwaves (MHWs) are prolonged extreme oceanic warm water events. Globally, the frequency and intensity of MHWs have been increasing in recent years, and it is expected that this trend is reflected in the Kerguelen Plateau region. MHWs can negatively impact the structure of marine biodiversity, marine ecosystems, and commercial fisheries. Considering that the KP is a hot-spot for marine biodiversity, characterizing MHWs and their drivers for this region is important, but has not been performed. Here, we characterize MHWs in the KP region between January 1994 and December 2016 using a combination of remotely sensed observations and output from a publicly available model hindcast simulation. We describe a strong MHW event that starts during the 2011/2012 austral summer and persists through winter, dissipating in late 2012. During the winter months, the anomalous temperature signal deepens from the surface to a depth of at least 150 m. We show that downwelling-favorable winds occur in the region during these months. At the end of 2012, as the MHW dissipates, upwelling-favorable winds prevail. We also show that the ocean temperature on the KP is significantly correlated with key modes of climate variability. Over the KP, temperature at both the ocean surface and at a depth of 150 m correlates significantly with the Indian Ocean Dipole. To the south of the KP, temperature variations are significantly correlated with the El Niño Southern Oscillation, and to both the north and south of the KP, with the Southern Annular Mode. These results suggest there may be potential predictability in ocean temperatures, and their extremes, in the KP region. Strong MHWs, like the event in 2012, may be detrimental to the unique ecosystem of this region, including economically relevant species, such as the Patagonian Toothfish.

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