The influence of light on egg buoyancy and hatching rate of the walleye pollock, Theragra chalcogramma
Changes in buoyancy in fertilized bathypelagic eggs of the walleye pollock, Theragra chalcogramma , collected from Shelikof Strait in the Gulf of Alaska were measured under controlled laboratory conditions in density gradient columns from 90 h post–fertilization through hatching. Eggs were incubated...
Published in: | Journal of Fish Biology |
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Language: | English |
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Wiley
1993
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Online Access: | http://dx.doi.org/10.1111/j.1095-8649.1993.tb00378.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1993.tb00378.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1993.tb00378.x |
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crwiley:10.1111/j.1095-8649.1993.tb00378.x 2024-06-02T08:15:14+00:00 The influence of light on egg buoyancy and hatching rate of the walleye pollock, Theragra chalcogramma Olla, B. L. Davis, M. W. 1993 http://dx.doi.org/10.1111/j.1095-8649.1993.tb00378.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1993.tb00378.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1993.tb00378.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 42, issue 5, page 693-698 ISSN 0022-1112 1095-8649 journal-article 1993 crwiley https://doi.org/10.1111/j.1095-8649.1993.tb00378.x 2024-05-03T10:39:33Z Changes in buoyancy in fertilized bathypelagic eggs of the walleye pollock, Theragra chalcogramma , collected from Shelikof Strait in the Gulf of Alaska were measured under controlled laboratory conditions in density gradient columns from 90 h post–fertilization through hatching. Eggs were incubated at 6° C and exposed to either diel light or constant dark. Eggs held under diel light conditions became more dense than eggs under constant dark beginning <10 h after exposure to light and remained so until 12 h before hatching. Eggs held under constant dark then became more dense than those under diel light. Hatching of eggs under both conditions began at the same time but eggs under diel light showed a delayed hatching rate. Light–induced changes in egg density indicate the ability of walleye pollock eggs to respond to external stimuli and thereby alter their position in the water column in an ecologically meaningful way. Article in Journal/Newspaper Theragra chalcogramma Alaska Wiley Online Library Gulf of Alaska Journal of Fish Biology 42 5 693 698 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Changes in buoyancy in fertilized bathypelagic eggs of the walleye pollock, Theragra chalcogramma , collected from Shelikof Strait in the Gulf of Alaska were measured under controlled laboratory conditions in density gradient columns from 90 h post–fertilization through hatching. Eggs were incubated at 6° C and exposed to either diel light or constant dark. Eggs held under diel light conditions became more dense than eggs under constant dark beginning <10 h after exposure to light and remained so until 12 h before hatching. Eggs held under constant dark then became more dense than those under diel light. Hatching of eggs under both conditions began at the same time but eggs under diel light showed a delayed hatching rate. Light–induced changes in egg density indicate the ability of walleye pollock eggs to respond to external stimuli and thereby alter their position in the water column in an ecologically meaningful way. |
format |
Article in Journal/Newspaper |
author |
Olla, B. L. Davis, M. W. |
spellingShingle |
Olla, B. L. Davis, M. W. The influence of light on egg buoyancy and hatching rate of the walleye pollock, Theragra chalcogramma |
author_facet |
Olla, B. L. Davis, M. W. |
author_sort |
Olla, B. L. |
title |
The influence of light on egg buoyancy and hatching rate of the walleye pollock, Theragra chalcogramma |
title_short |
The influence of light on egg buoyancy and hatching rate of the walleye pollock, Theragra chalcogramma |
title_full |
The influence of light on egg buoyancy and hatching rate of the walleye pollock, Theragra chalcogramma |
title_fullStr |
The influence of light on egg buoyancy and hatching rate of the walleye pollock, Theragra chalcogramma |
title_full_unstemmed |
The influence of light on egg buoyancy and hatching rate of the walleye pollock, Theragra chalcogramma |
title_sort |
influence of light on egg buoyancy and hatching rate of the walleye pollock, theragra chalcogramma |
publisher |
Wiley |
publishDate |
1993 |
url |
http://dx.doi.org/10.1111/j.1095-8649.1993.tb00378.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1993.tb00378.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1993.tb00378.x |
geographic |
Gulf of Alaska |
geographic_facet |
Gulf of Alaska |
genre |
Theragra chalcogramma Alaska |
genre_facet |
Theragra chalcogramma Alaska |
op_source |
Journal of Fish Biology volume 42, issue 5, page 693-698 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1095-8649.1993.tb00378.x |
container_title |
Journal of Fish Biology |
container_volume |
42 |
container_issue |
5 |
container_start_page |
693 |
op_container_end_page |
698 |
_version_ |
1800739351047438336 |