Chemical and visual sensory systems in feeding behaviour of the Antarctic fish Ophthalmolycus amberensis (Zoarcidae)
The Antarctic eelpout Ophthalmolycus amberensis occurs in Admiralty Bay (King George Island, South Shetlands), at 140-200m depth, where light intensity is low. To assess behavioural and sensory adaptations for feeding under these conditions, laboratory tests were undertaken. Dead krill, fish fillet,...
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National Institute of Polar Research
2001
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ftdoajarticles:oai:doaj.org/article:9bebe5345ade49b09412338c015589c9 2023-05-15T13:57:41+02:00 Chemical and visual sensory systems in feeding behaviour of the Antarctic fish Ophthalmolycus amberensis (Zoarcidae) Edith Fanta Flavia Sant' Anna Rios Ana Aparecida Meyer Sonia Regina Grotzner Tania Zaleski 2001-03-01T00:00:00Z https://doi.org/10.15094/00009151 https://doaj.org/article/9bebe5345ade49b09412338c015589c9 EN JA eng jpn National Institute of Polar Research http://doi.org/10.15094/00009151 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00009151 0085-7289 2432-079X https://doaj.org/article/9bebe5345ade49b09412338c015589c9 Antarctic Record, Vol 45, Iss 1, Pp 27-42 (2001) Geography (General) G1-922 article 2001 ftdoajarticles https://doi.org/10.15094/00009151 2022-12-30T21:47:05Z The Antarctic eelpout Ophthalmolycus amberensis occurs in Admiralty Bay (King George Island, South Shetlands), at 140-200m depth, where light intensity is low. To assess behavioural and sensory adaptations for feeding under these conditions, laboratory tests were undertaken. Dead krill, fish fillet, and live amphipods were the preferred food items. Feeding responses were mainly induced by chemical stimuli. Visual stimuli were weak elicitors, leading to a long delay in the initiation of feeding behaviour. These fishes present a large olfactory epithelium, a high density of taste buds on the snout and close to the nostrils, and a retina that contained long rods, but no cones. Food selection was observed. Varied types of taste buds were present on the lips and in the oro-pharyngeal cavity. The capacity to use a chemo-sensory system as first elicitor for food detection, either in the absence or presence of light, allows O. amberensis to efficiently exploit different habitats at the sea bottom, in all Antarctic seasons. Article in Journal/Newspaper Antarc* Antarctic King George Island Directory of Open Access Journals: DOAJ Articles Admiralty Bay Antarctic King George Island The Antarctic |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English Japanese |
topic |
Geography (General) G1-922 |
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Geography (General) G1-922 Edith Fanta Flavia Sant' Anna Rios Ana Aparecida Meyer Sonia Regina Grotzner Tania Zaleski Chemical and visual sensory systems in feeding behaviour of the Antarctic fish Ophthalmolycus amberensis (Zoarcidae) |
topic_facet |
Geography (General) G1-922 |
description |
The Antarctic eelpout Ophthalmolycus amberensis occurs in Admiralty Bay (King George Island, South Shetlands), at 140-200m depth, where light intensity is low. To assess behavioural and sensory adaptations for feeding under these conditions, laboratory tests were undertaken. Dead krill, fish fillet, and live amphipods were the preferred food items. Feeding responses were mainly induced by chemical stimuli. Visual stimuli were weak elicitors, leading to a long delay in the initiation of feeding behaviour. These fishes present a large olfactory epithelium, a high density of taste buds on the snout and close to the nostrils, and a retina that contained long rods, but no cones. Food selection was observed. Varied types of taste buds were present on the lips and in the oro-pharyngeal cavity. The capacity to use a chemo-sensory system as first elicitor for food detection, either in the absence or presence of light, allows O. amberensis to efficiently exploit different habitats at the sea bottom, in all Antarctic seasons. |
format |
Article in Journal/Newspaper |
author |
Edith Fanta Flavia Sant' Anna Rios Ana Aparecida Meyer Sonia Regina Grotzner Tania Zaleski |
author_facet |
Edith Fanta Flavia Sant' Anna Rios Ana Aparecida Meyer Sonia Regina Grotzner Tania Zaleski |
author_sort |
Edith Fanta |
title |
Chemical and visual sensory systems in feeding behaviour of the Antarctic fish Ophthalmolycus amberensis (Zoarcidae) |
title_short |
Chemical and visual sensory systems in feeding behaviour of the Antarctic fish Ophthalmolycus amberensis (Zoarcidae) |
title_full |
Chemical and visual sensory systems in feeding behaviour of the Antarctic fish Ophthalmolycus amberensis (Zoarcidae) |
title_fullStr |
Chemical and visual sensory systems in feeding behaviour of the Antarctic fish Ophthalmolycus amberensis (Zoarcidae) |
title_full_unstemmed |
Chemical and visual sensory systems in feeding behaviour of the Antarctic fish Ophthalmolycus amberensis (Zoarcidae) |
title_sort |
chemical and visual sensory systems in feeding behaviour of the antarctic fish ophthalmolycus amberensis (zoarcidae) |
publisher |
National Institute of Polar Research |
publishDate |
2001 |
url |
https://doi.org/10.15094/00009151 https://doaj.org/article/9bebe5345ade49b09412338c015589c9 |
geographic |
Admiralty Bay Antarctic King George Island The Antarctic |
geographic_facet |
Admiralty Bay Antarctic King George Island The Antarctic |
genre |
Antarc* Antarctic King George Island |
genre_facet |
Antarc* Antarctic King George Island |
op_source |
Antarctic Record, Vol 45, Iss 1, Pp 27-42 (2001) |
op_relation |
http://doi.org/10.15094/00009151 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00009151 0085-7289 2432-079X https://doaj.org/article/9bebe5345ade49b09412338c015589c9 |
op_doi |
https://doi.org/10.15094/00009151 |
_version_ |
1766265494740926464 |