Scavenging by megabenthos and demersal fish on the South Georgia slope
The scavenging megafauna of the South Georgia and Shag Rocks slope in the south-west Atlantic (625-15 19 m) were investigated using autonomous baited camera systems. Two surveys were conducted: the first in 1997 (13 deployments) used a conventional 35 mm stills camera with a 200 J flash, whilst the...
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Cambridge University Press
2002
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ftnerc:oai:nora.nerc.ac.uk:17535 2023-05-15T14:14:51+02:00 Scavenging by megabenthos and demersal fish on the South Georgia slope Yau, Cynthia Collins, Martin A. Bagley, Phil .M. Everson, Inigo Priede, Imants G. 2002 http://nora.nerc.ac.uk/id/eprint/17535/ http://journals.cambridge.org/download.php?file=%2FANS%2FANS14_01%2FS0954102002000536a.pdf&code=62b5786513091234b1a15cd526574854 unknown Cambridge University Press Yau, Cynthia; Collins, Martin A. orcid:0000-0001-7132-8650 Bagley, Phil .M.; Everson, Inigo; Priede, Imants G. 2002 Scavenging by megabenthos and demersal fish on the South Georgia slope. Antarctic Science, 14 (1). 16-24. https://doi.org/10.1017/S0954102002000536 <https://doi.org/10.1017/S0954102002000536> Publication - Article PeerReviewed 2002 ftnerc https://doi.org/10.1017/S0954102002000536 2023-02-04T19:31:09Z The scavenging megafauna of the South Georgia and Shag Rocks slope in the south-west Atlantic (625-15 19 m) were investigated using autonomous baited camera systems. Two surveys were conducted: the first in 1997 (13 deployments) used a conventional 35 mm stills camera with a 200 J flash, whilst the second in 2000 (1 5 deployments) used low-light digital video cameras. The scavenging community responded rapidly to the arrival of bait on the sea floor and was dominated by stone crabs (Lithodidae) and toothfish (Dissostichus eleginoides). Stone crabs took up residence around the bait until it was consumed, with a maximum number of 108 in the field of view after four hours. The most frequently observed crab species was Paralomis formosa. Paralomis spinosissima, Neolithodes diomedea and Lithodes sp., were also observed. Toothfish were the most frequently observed scavenging fish and were seen during all but one deployment, typically making brief visits (1-2 min) to the bait, but appeared startled by the flash in the 1997 survey. Labriform swimming (sculling with the pectoral fins) was the principal form of locomotion in toothfish (0.22 body lengths (BL) sec-I), but they were capable of more rapid sub-carangiform (using caudal trunk and fin) motion (3 BL sec-I) when startled. Other scavenging fish observed included the blue-hake Antimora rostrata, grenadiers (Macrourus spp.), skates, liparids and zoarcids. Article in Journal/Newspaper Antarctic Science Natural Environment Research Council: NERC Open Research Archive Hake ENVELOPE(15.612,15.612,66.797,66.797) Shag Rocks ENVELOPE(-42.033,-42.033,-53.550,-53.550) Antarctic Science 14 1 16 24 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
description |
The scavenging megafauna of the South Georgia and Shag Rocks slope in the south-west Atlantic (625-15 19 m) were investigated using autonomous baited camera systems. Two surveys were conducted: the first in 1997 (13 deployments) used a conventional 35 mm stills camera with a 200 J flash, whilst the second in 2000 (1 5 deployments) used low-light digital video cameras. The scavenging community responded rapidly to the arrival of bait on the sea floor and was dominated by stone crabs (Lithodidae) and toothfish (Dissostichus eleginoides). Stone crabs took up residence around the bait until it was consumed, with a maximum number of 108 in the field of view after four hours. The most frequently observed crab species was Paralomis formosa. Paralomis spinosissima, Neolithodes diomedea and Lithodes sp., were also observed. Toothfish were the most frequently observed scavenging fish and were seen during all but one deployment, typically making brief visits (1-2 min) to the bait, but appeared startled by the flash in the 1997 survey. Labriform swimming (sculling with the pectoral fins) was the principal form of locomotion in toothfish (0.22 body lengths (BL) sec-I), but they were capable of more rapid sub-carangiform (using caudal trunk and fin) motion (3 BL sec-I) when startled. Other scavenging fish observed included the blue-hake Antimora rostrata, grenadiers (Macrourus spp.), skates, liparids and zoarcids. |
format |
Article in Journal/Newspaper |
author |
Yau, Cynthia Collins, Martin A. Bagley, Phil .M. Everson, Inigo Priede, Imants G. |
spellingShingle |
Yau, Cynthia Collins, Martin A. Bagley, Phil .M. Everson, Inigo Priede, Imants G. Scavenging by megabenthos and demersal fish on the South Georgia slope |
author_facet |
Yau, Cynthia Collins, Martin A. Bagley, Phil .M. Everson, Inigo Priede, Imants G. |
author_sort |
Yau, Cynthia |
title |
Scavenging by megabenthos and demersal fish on the South Georgia slope |
title_short |
Scavenging by megabenthos and demersal fish on the South Georgia slope |
title_full |
Scavenging by megabenthos and demersal fish on the South Georgia slope |
title_fullStr |
Scavenging by megabenthos and demersal fish on the South Georgia slope |
title_full_unstemmed |
Scavenging by megabenthos and demersal fish on the South Georgia slope |
title_sort |
scavenging by megabenthos and demersal fish on the south georgia slope |
publisher |
Cambridge University Press |
publishDate |
2002 |
url |
http://nora.nerc.ac.uk/id/eprint/17535/ http://journals.cambridge.org/download.php?file=%2FANS%2FANS14_01%2FS0954102002000536a.pdf&code=62b5786513091234b1a15cd526574854 |
long_lat |
ENVELOPE(15.612,15.612,66.797,66.797) ENVELOPE(-42.033,-42.033,-53.550,-53.550) |
geographic |
Hake Shag Rocks |
geographic_facet |
Hake Shag Rocks |
genre |
Antarctic Science |
genre_facet |
Antarctic Science |
op_relation |
Yau, Cynthia; Collins, Martin A. orcid:0000-0001-7132-8650 Bagley, Phil .M.; Everson, Inigo; Priede, Imants G. 2002 Scavenging by megabenthos and demersal fish on the South Georgia slope. Antarctic Science, 14 (1). 16-24. https://doi.org/10.1017/S0954102002000536 <https://doi.org/10.1017/S0954102002000536> |
op_doi |
https://doi.org/10.1017/S0954102002000536 |
container_title |
Antarctic Science |
container_volume |
14 |
container_issue |
1 |
container_start_page |
16 |
op_container_end_page |
24 |
_version_ |
1766287229215309824 |