Habitat preference and dive behavior of non‑breeding emperor penguins in the eastern Ross Sea, Antarctica

2018 ◽  
Vol 593 ◽  
pp. 155-171 ◽  
Author(s):  
KT Goetz ◽  
BI McDonald ◽  
GL Kooyman
Keyword(s):  
Habitat Preference ◽  
Ross Sea ◽  
Dive Behavior ◽  
Emperor Penguins

Bird and mammal life recorded during the Antarctic drift of SY Aurora, 1915–16

Polar Record ◽  
1990 ◽  
Vol 26 (159) ◽  
pp. 277-288 ◽  
Author(s):  
P. D. Shaughnessy
Keyword(s):  
Southern Ocean ◽  
Ross Sea ◽  
Killer Whales ◽  
Food Items ◽  
Emperor Penguins ◽  
Sea Birds ◽  
Pack Ice ◽  
Antarctic Expedition ◽  
The Antarctic ◽  
Blue Whales

AbstractAfter landing the Ross Sea shore party of Shackleton's Imperial Trans-Antarctic Expedition at Cape Evans, McMurdo Sound, SY Aurora drifted for 313 days between May 1915 and March 1916 in the pack iceof the Ross Sea and Southern Ocean. During the drift A. H. Ninnis maintained observations of the fauna. He was out hunting on the pack ice on at least 86 days to augment the ship's slender provisions, taking 289 penguins, 10 other sea birds and 20 seals. He sighted whales on at least 15 days, including killer whales in July and August and four large whales, possibly blue whales, in November. He also noted birds returning south for the breeding season in spring, progress of moult in emperor penguins, pupping of crabeater and leopard seals, and food items of several seals and seabirds. Most of his report is presented here, edited to improve its readability and remove abbreviations; the text is preceded by a brief summary of the fauna seen and followed by footnotes on some of his observations.

scholarly journals Development of diving capacity in emperor penguins

1999 ◽  
Vol 202 (7) ◽  
pp. 781-786 ◽  
Author(s):  
P.J. Ponganis ◽  
L.N. Starke ◽  
M. Horning ◽  
G.L. Kooyman
Keyword(s):  
Lactate Dehydrogenase ◽  
Citrate Synthase ◽  
Ross Sea ◽  
Hemoglobin Concentration ◽  
Developmental Changes ◽  
Physiological Variables ◽  
Diving Depth ◽  
Emperor Penguins ◽  
Aptenodytes Forsteri ◽  
Juvenile Development

To compare the diving capacities of juvenile and adult emperor penguins Aptenodytes forsteri, and to determine the physiological variables underlying the diving ability of juveniles, we monitored diving activity in juvenile penguins fitted with satellite-linked time/depth recorders and examined developmental changes in body mass (Mb), hemoglobin concentration, myoglobin (Mb) content and muscle citrate synthase and lactate dehydrogenase activities. Diving depth, diving duration and time-at-depth histograms were obtained from two fledged juveniles during the first 2.5 months after their depature from the Cape Washingon colony in the Ross Sea, Antarctica. During this period, values of all three diving variables increased progressively. After 8–10 weeks at sea, 24–41 % of transmitted maximum diving depths were between 80 and 200 m. Although most dives lasted less than 2 min during the 2 month period, 8–25 % of transmitted dives in the last 2 weeks lasted 2–4 min. These values are lower than those previously recorded in adults during foraging trips. Of the physiological variables examined during chick and juvenile development, only Mb and Mb content did not approach adult values. In both near-fledge chicks and juveniles, Mb was 50–60 % of adult values and Mb content was 24–31 % of adult values. This suggests that the increase in diving capacity of juveniles at sea will be most dependent on changes in these factors.

Crary bank: a deep foraging habitat for emperor penguins in the western Ross Sea

Polar Biology ◽  
2020 ◽  
Vol 43 (7) ◽  
pp. 801-811 ◽  
Author(s):  
G. L. Kooyman ◽  
K. Goetz ◽  
C. L. Williams ◽  
P. J. Ponganis ◽  
K. Sato ◽  
...  
Keyword(s):  
Ross Sea ◽  
Foraging Habitat ◽  
Emperor Penguins ◽  
Western Ross Sea

Breeding habitats of emperor penguins in the western Ross Sea

1993 ◽  
Vol 5 (2) ◽  
pp. 143-148 ◽  
Author(s):  
Gerald L. Kooyman
Keyword(s):  
Sea Ice ◽  
Ross Sea ◽  
Open Water ◽  
Emperor Penguin ◽  
Water Access ◽  
Emperor Penguins ◽  
Breeding Habitats ◽  
Fresh Snow ◽  
Fast Ice ◽  
Western Ross Sea

Within the Western Ross Sea, there are six emperor penguin colonies of widely different size that occur exclusively on sea ice. In 1990 a survey of all six sites, two by close overflights and four from the ground, showed that the breeding habitats were highly variable. The most important physical characteristics of these habitats appear to be stable fast ice, nearby open water, access to fresh snow, and shelter from the wind.

scholarly journals Moult habitat, pre- and post-moult diet and post-moult travel of Ross Sea emperor penguins

2004 ◽  
Vol 267 ◽  
pp. 281-290 ◽  
Author(s):  
GL Kooyman ◽  
DB Siniff ◽  
I Stirling ◽  
JL Bengtson
Keyword(s):  
Ross Sea ◽  
Emperor Penguins

Latitudinal distribution of penguins, seals and whales observed during a late autumn transect through the Ross Sea

2004 ◽  
Vol 16 (3) ◽  
pp. 313-318 ◽  
Author(s):  
ROBERT P. VAN DAM ◽  
GERALD L. KOOYMAN
Keyword(s):  
Sea Ice ◽  
Marine Mammals ◽  
Ross Sea ◽  
Ice Shelf ◽  
Ross Ice Shelf ◽  
Emperor Penguins ◽  
Winter Foraging ◽  
Cruise Line ◽  
Abundance And Distribution ◽  
Adélie Penguins

During a cruise to the Ross Ice Shelf we counted all penguins and marine mammals seen whilst underway. Our objective was to determine the abundance and distribution of these animals along our cruise line. From 14 May until 11 June the sun was below the horizon. Our observations were from the 18 m high bridge. Most watches were in the dark, aided by the bridge spotlights. A total of 79 emperor penguins, 920 Adélie penguins, and 27 marine mammals were counted. We conclude that the Ross Sea, in which wildlife flourishes during the summer, is depauperate in winter. The low numbers of marine mammals may be due partially to their tendency to remain below the surface most of the time. However, Adélie penguins, a visual hunter which rests on sea ice at night, appear to prefer pack ice edges where there is a few hours of daylight and civil twilight for pursuit of prey. Non-breeding emperor penguins also rest on sea ice at night. All but four were observed north of the Ross Sea. Unlike more northerly colonies where females lay their egg and disperse in May female departure in the Ross Sea appears to be later and, we were unable to determine their winter foraging area.

scholarly journals Latitudinal, sex and inter-specific differences in mercury and other trace metal concentrations in Adélie and Emperor penguins in the Ross Sea, Antarctica

2020 ◽  
Vol 154 ◽  
pp. 111047
Author(s):  
Natalie Pilcher ◽  
Sally Gaw ◽  
Regina Eisert ◽  
Travis W. Horton ◽  
Andrew M. Gormley ◽  
...  
Keyword(s):  
Trace Metal ◽  
Ross Sea ◽  
Metal Concentrations ◽  
Emperor Penguins
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