Swimming Energetics and Performance of Instrumented Adelie Penguins (Pygoscelis Adeliae)
The effects of implanted and of externally attached instruments (1.8% of body cross-sectional area) were studied on Adé1ie penguins ( Pygoscelis adeliae ) using a 21 m long canal in conjunction with respirometry at Esperanza Bay, Antarctica. Penguins in both groups covered the same mean distance (17...
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fthighwire:oai:open-archive.highwire.org:jexbio:158/1/355 2023-05-15T13:47:25+02:00 Swimming Energetics and Performance of Instrumented Adelie Penguins (Pygoscelis Adeliae) CULIK, BORIS WILSON, RORY P. 1991-07-01 00:00:00.0 text/html http://jeb.biologists.org/cgi/content/short/158/1/355 en eng Company of Biologists http://jeb.biologists.org/cgi/content/short/158/1/355 Copyright (C) 1991, Company of Biologists Journal Articles TEXT 1991 fthighwire 2013-04-02T07:25:48Z The effects of implanted and of externally attached instruments (1.8% of body cross-sectional area) were studied on Adé1ie penguins ( Pygoscelis adeliae ) using a 21 m long canal in conjunction with respirometry at Esperanza Bay, Antarctica. Penguins in both groups covered the same mean distance (173 m in 5 min) as controls. Implanted birds preferred to swim at slower speeds (1.3–1.7 ms-1) than did the controls (1.9–2.1 ms-1), whereas penguins with external instruments had a bimodal speed distribution with maxima at 1.7–1.9 and 2.3–2.5 ms-1. Power input during swimming averaged 20% less in implanted penguins (12.7 W kg-1) and 42% more in penguins fitted with external instruments (22.5 W kg-1) compared with controls (15.8 W kg-1). Similarly, cost of transport was 23% lower in implanted penguins (7.0 J kg-1 m-1) and 25% higher in externally instrumented birds (11.3 J kg-1 m-1) compared with controls (9.0 J kg-1 m-1). Possible reasons for the effects caused by the devices are discussed and the advantages and disadvantages of implanted and externally fitted devices are compared. Text Antarc* Antarctica Pygoscelis adeliae HighWire Press (Stanford University) Esperanza ENVELOPE(-56.983,-56.983,-63.400,-63.400) |
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HighWire Press (Stanford University) |
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English |
topic |
Journal Articles |
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Journal Articles CULIK, BORIS WILSON, RORY P. Swimming Energetics and Performance of Instrumented Adelie Penguins (Pygoscelis Adeliae) |
topic_facet |
Journal Articles |
description |
The effects of implanted and of externally attached instruments (1.8% of body cross-sectional area) were studied on Adé1ie penguins ( Pygoscelis adeliae ) using a 21 m long canal in conjunction with respirometry at Esperanza Bay, Antarctica. Penguins in both groups covered the same mean distance (173 m in 5 min) as controls. Implanted birds preferred to swim at slower speeds (1.3–1.7 ms-1) than did the controls (1.9–2.1 ms-1), whereas penguins with external instruments had a bimodal speed distribution with maxima at 1.7–1.9 and 2.3–2.5 ms-1. Power input during swimming averaged 20% less in implanted penguins (12.7 W kg-1) and 42% more in penguins fitted with external instruments (22.5 W kg-1) compared with controls (15.8 W kg-1). Similarly, cost of transport was 23% lower in implanted penguins (7.0 J kg-1 m-1) and 25% higher in externally instrumented birds (11.3 J kg-1 m-1) compared with controls (9.0 J kg-1 m-1). Possible reasons for the effects caused by the devices are discussed and the advantages and disadvantages of implanted and externally fitted devices are compared. |
format |
Text |
author |
CULIK, BORIS WILSON, RORY P. |
author_facet |
CULIK, BORIS WILSON, RORY P. |
author_sort |
CULIK, BORIS |
title |
Swimming Energetics and Performance of Instrumented Adelie Penguins (Pygoscelis Adeliae) |
title_short |
Swimming Energetics and Performance of Instrumented Adelie Penguins (Pygoscelis Adeliae) |
title_full |
Swimming Energetics and Performance of Instrumented Adelie Penguins (Pygoscelis Adeliae) |
title_fullStr |
Swimming Energetics and Performance of Instrumented Adelie Penguins (Pygoscelis Adeliae) |
title_full_unstemmed |
Swimming Energetics and Performance of Instrumented Adelie Penguins (Pygoscelis Adeliae) |
title_sort |
swimming energetics and performance of instrumented adelie penguins (pygoscelis adeliae) |
publisher |
Company of Biologists |
publishDate |
1991 |
url |
http://jeb.biologists.org/cgi/content/short/158/1/355 |
long_lat |
ENVELOPE(-56.983,-56.983,-63.400,-63.400) |
geographic |
Esperanza |
geographic_facet |
Esperanza |
genre |
Antarc* Antarctica Pygoscelis adeliae |
genre_facet |
Antarc* Antarctica Pygoscelis adeliae |
op_relation |
http://jeb.biologists.org/cgi/content/short/158/1/355 |
op_rights |
Copyright (C) 1991, Company of Biologists |
_version_ |
1766247094481321984 |