Cone spectral sensitivity in the harbor seal ( Phoca vitulina ) and implications for color vision
The retinas of harbor seals (Phoca vitulina) contain two morphologically distinct photoreceptor types: rods and cones. The spectral properties of the cones have not been previously studied. The spectral sensitivities of the cones of harbor seals were measured using a retinal gross potential techniqu...
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1998
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crcansciencepubl:10.1139/z98-129 2023-12-17T10:31:14+01:00 Cone spectral sensitivity in the harbor seal ( Phoca vitulina ) and implications for color vision Crognale, Michael A Levenson, David H Ponganis, Paul J Deegan II, Jess F Jacobs, Gerald H 1998 http://dx.doi.org/10.1139/z98-129 http://www.nrcresearchpress.com/doi/pdf/10.1139/z98-129 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 76, issue 11, page 2114-2118 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 1998 crcansciencepubl https://doi.org/10.1139/z98-129 2023-11-19T13:38:55Z The retinas of harbor seals (Phoca vitulina) contain two morphologically distinct photoreceptor types: rods and cones. The spectral properties of the cones have not been previously studied. The spectral sensitivities of the cones of harbor seals were measured using a retinal gross potential technique, flicker photometric electroretinography. We found a cone spectral sensitivity curve with a peak at about 510 nm. The shape of the spectral sensitivity curve remained invariant despite large changes in chromatic adaptation, implying that harbor seals have only a single cone photopigment. This means that harbor seals must lack color vision at photopic light levels. Any color discrimination in this species would have to be based on combined input from rods and cones and thus restricted to mesopic light levels. The spectral sensitivity of the cone pigment in the harbor seal is shifted to shorter wavelengths than those of terrestrial carnivores, consistent with adaptation to the aquatic photic environment. Article in Journal/Newspaper harbor seal Phoca vitulina Canadian Science Publishing (via Crossref) The Cones ENVELOPE(78.344,78.344,-68.635,-68.635) Cones The ENVELOPE(78.344,78.344,-68.635,-68.635) Cones, The ENVELOPE(78.344,78.344,-68.635,-68.635) Canadian Journal of Zoology 76 11 2114 2118 |
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Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Crognale, Michael A Levenson, David H Ponganis, Paul J Deegan II, Jess F Jacobs, Gerald H Cone spectral sensitivity in the harbor seal ( Phoca vitulina ) and implications for color vision |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
The retinas of harbor seals (Phoca vitulina) contain two morphologically distinct photoreceptor types: rods and cones. The spectral properties of the cones have not been previously studied. The spectral sensitivities of the cones of harbor seals were measured using a retinal gross potential technique, flicker photometric electroretinography. We found a cone spectral sensitivity curve with a peak at about 510 nm. The shape of the spectral sensitivity curve remained invariant despite large changes in chromatic adaptation, implying that harbor seals have only a single cone photopigment. This means that harbor seals must lack color vision at photopic light levels. Any color discrimination in this species would have to be based on combined input from rods and cones and thus restricted to mesopic light levels. The spectral sensitivity of the cone pigment in the harbor seal is shifted to shorter wavelengths than those of terrestrial carnivores, consistent with adaptation to the aquatic photic environment. |
format |
Article in Journal/Newspaper |
author |
Crognale, Michael A Levenson, David H Ponganis, Paul J Deegan II, Jess F Jacobs, Gerald H |
author_facet |
Crognale, Michael A Levenson, David H Ponganis, Paul J Deegan II, Jess F Jacobs, Gerald H |
author_sort |
Crognale, Michael A |
title |
Cone spectral sensitivity in the harbor seal ( Phoca vitulina ) and implications for color vision |
title_short |
Cone spectral sensitivity in the harbor seal ( Phoca vitulina ) and implications for color vision |
title_full |
Cone spectral sensitivity in the harbor seal ( Phoca vitulina ) and implications for color vision |
title_fullStr |
Cone spectral sensitivity in the harbor seal ( Phoca vitulina ) and implications for color vision |
title_full_unstemmed |
Cone spectral sensitivity in the harbor seal ( Phoca vitulina ) and implications for color vision |
title_sort |
cone spectral sensitivity in the harbor seal ( phoca vitulina ) and implications for color vision |
publisher |
Canadian Science Publishing |
publishDate |
1998 |
url |
http://dx.doi.org/10.1139/z98-129 http://www.nrcresearchpress.com/doi/pdf/10.1139/z98-129 |
long_lat |
ENVELOPE(78.344,78.344,-68.635,-68.635) ENVELOPE(78.344,78.344,-68.635,-68.635) ENVELOPE(78.344,78.344,-68.635,-68.635) |
geographic |
The Cones Cones The Cones, The |
geographic_facet |
The Cones Cones The Cones, The |
genre |
harbor seal Phoca vitulina |
genre_facet |
harbor seal Phoca vitulina |
op_source |
Canadian Journal of Zoology volume 76, issue 11, page 2114-2118 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z98-129 |
container_title |
Canadian Journal of Zoology |
container_volume |
76 |
container_issue |
11 |
container_start_page |
2114 |
op_container_end_page |
2118 |
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1785584427286396928 |