Phototoxicity and fish predation: selective factors in color morphs ofHeterocope
In the Toolik Lake region of arctic Alaska, Heterocope septentrionalis occurs in two distinct color morphs, dark red and pale green. The dark form tends to occur in shallow fishless ponds and the pale form in large, deep lakes with fish. Phototoxicity and fish predation experiments on the two morphs...
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ftutahsudc:oai:digitalcommons.usu.edu:wats_facpub-1191 2023-05-15T15:01:04+02:00 Phototoxicity and fish predation: selective factors in color morphs ofHeterocope Luecke, Chris O'Brien, W. J. 1981-01-01T08:00:00Z https://digitalcommons.usu.edu/wats_facpub/192 unknown Hosted by Utah State University Libraries https://digitalcommons.usu.edu/wats_facpub/192 Copyright for this work is held by the author. Transmission or reproduction of materials protected by copyright beyond that allowed by fair use requires the written permission of the copyright owners. Works not in the public domain cannot be commercially exploited without permission of the copyright owner. Responsibility for any use rests exclusively with the user. For more information contact the Institutional Repository Librarian at digitalcommons@usu.edu. PDM Watershed Sciences Faculty Publications phototoxicity fish predation color morph heterocope Aquaculture and Fisheries Environmental Sciences Fresh Water Studies text 1981 ftutahsudc 2022-08-11T17:19:28Z In the Toolik Lake region of arctic Alaska, Heterocope septentrionalis occurs in two distinct color morphs, dark red and pale green. The dark form tends to occur in shallow fishless ponds and the pale form in large, deep lakes with fish. Phototoxicity and fish predation experiments on the two morphs showed that the dark red form had better survivorship in bright sunlight and the pale green form was less susceptible to predation by visually feeding fish. The red color is caused by a keto-carotenoid pigment. In lakes where predation presents a threat than sunlight the keto-carotenoid pigment is complexed with a protein to produce green Heterocope. Text Arctic Alaska Utah State University: DigitalCommons@USU Arctic |
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Open Polar |
collection |
Utah State University: DigitalCommons@USU |
op_collection_id |
ftutahsudc |
language |
unknown |
topic |
phototoxicity fish predation color morph heterocope Aquaculture and Fisheries Environmental Sciences Fresh Water Studies |
spellingShingle |
phototoxicity fish predation color morph heterocope Aquaculture and Fisheries Environmental Sciences Fresh Water Studies Luecke, Chris O'Brien, W. J. Phototoxicity and fish predation: selective factors in color morphs ofHeterocope |
topic_facet |
phototoxicity fish predation color morph heterocope Aquaculture and Fisheries Environmental Sciences Fresh Water Studies |
description |
In the Toolik Lake region of arctic Alaska, Heterocope septentrionalis occurs in two distinct color morphs, dark red and pale green. The dark form tends to occur in shallow fishless ponds and the pale form in large, deep lakes with fish. Phototoxicity and fish predation experiments on the two morphs showed that the dark red form had better survivorship in bright sunlight and the pale green form was less susceptible to predation by visually feeding fish. The red color is caused by a keto-carotenoid pigment. In lakes where predation presents a threat than sunlight the keto-carotenoid pigment is complexed with a protein to produce green Heterocope. |
format |
Text |
author |
Luecke, Chris O'Brien, W. J. |
author_facet |
Luecke, Chris O'Brien, W. J. |
author_sort |
Luecke, Chris |
title |
Phototoxicity and fish predation: selective factors in color morphs ofHeterocope |
title_short |
Phototoxicity and fish predation: selective factors in color morphs ofHeterocope |
title_full |
Phototoxicity and fish predation: selective factors in color morphs ofHeterocope |
title_fullStr |
Phototoxicity and fish predation: selective factors in color morphs ofHeterocope |
title_full_unstemmed |
Phototoxicity and fish predation: selective factors in color morphs ofHeterocope |
title_sort |
phototoxicity and fish predation: selective factors in color morphs ofheterocope |
publisher |
Hosted by Utah State University Libraries |
publishDate |
1981 |
url |
https://digitalcommons.usu.edu/wats_facpub/192 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Alaska |
genre_facet |
Arctic Alaska |
op_source |
Watershed Sciences Faculty Publications |
op_relation |
https://digitalcommons.usu.edu/wats_facpub/192 |
op_rights |
Copyright for this work is held by the author. Transmission or reproduction of materials protected by copyright beyond that allowed by fair use requires the written permission of the copyright owners. Works not in the public domain cannot be commercially exploited without permission of the copyright owner. Responsibility for any use rests exclusively with the user. For more information contact the Institutional Repository Librarian at digitalcommons@usu.edu. |
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PDM |
_version_ |
1766333112435867648 |