Survival to Fry and Seawater Tolerance of Diploid and Triploid Hybrids between Chinook ( Oncorhynchus tshawytscha ), Chum ( O . keta ), and Pink Salmon ( O . gorbuscha )
We investigated the viability and seawater tolerance of all possible combinations of triploid and diploid hybrids between chinook (Oncorhynchus tshawytscha), chum (O. keta), and pink salmon (O. gorbuscha) in two brood years. Triploidy (induced by heat shock shortly after fertilization) was determine...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Language: | English |
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1994
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Online Access: | http://dx.doi.org/10.1139/f94-291 http://www.nrcresearchpress.com/doi/pdf/10.1139/f94-291 |
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crcansciencepubl:10.1139/f94-291 2023-12-17T10:48:47+01:00 Survival to Fry and Seawater Tolerance of Diploid and Triploid Hybrids between Chinook ( Oncorhynchus tshawytscha ), Chum ( O . keta ), and Pink Salmon ( O . gorbuscha ) Joyce, John E. Heintz, Ron Smoker, William W. Gharrett, A. J. 1994 http://dx.doi.org/10.1139/f94-291 http://www.nrcresearchpress.com/doi/pdf/10.1139/f94-291 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 51, issue S1, page 25-30 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 1994 crcansciencepubl https://doi.org/10.1139/f94-291 2023-11-19T13:38:18Z We investigated the viability and seawater tolerance of all possible combinations of triploid and diploid hybrids between chinook (Oncorhynchus tshawytscha), chum (O. keta), and pink salmon (O. gorbuscha) in two brood years. Triploidy (induced by heat shock shortly after fertilization) was determined by flow cytometry of blood taken from a sample of the fish. A factorial mating design was used to estimate the effects of cross, heat shock (ploidy), and their interaction. With the exception of the chinook (♂) × chum (♀) cross, all combinations produced offspring that survived to yolk absorption. Survival of heat-shocked groups was lower than that of diploid controls at the eyed stage and at hatching, but not different from diploids between hatching and yolk absorption. Induced triploidy did not increase the viability of interspecies hybrids. The level of triploid induction averaged across all heat-shocked crosses was 88% in one year and 95% in the other. Seawater tolerance (measured by 24-h seawater challenge survival) was higher in chinook hybrids with pink and chum salmon than in chinook controls. Seawater tolerance did not differ between diploid controls and heat-shocked triploid groups. Combinations that had seawater tolerance shortly after yolk absorption include chinook × pink, pink × chinook, and chum × chinook. Article in Journal/Newspaper Pink salmon Canadian Science Publishing (via Crossref) Keta ENVELOPE(-19.455,-19.455,65.656,65.656) Canadian Journal of Fisheries and Aquatic Sciences 51 S1 25 30 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Joyce, John E. Heintz, Ron Smoker, William W. Gharrett, A. J. Survival to Fry and Seawater Tolerance of Diploid and Triploid Hybrids between Chinook ( Oncorhynchus tshawytscha ), Chum ( O . keta ), and Pink Salmon ( O . gorbuscha ) |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
We investigated the viability and seawater tolerance of all possible combinations of triploid and diploid hybrids between chinook (Oncorhynchus tshawytscha), chum (O. keta), and pink salmon (O. gorbuscha) in two brood years. Triploidy (induced by heat shock shortly after fertilization) was determined by flow cytometry of blood taken from a sample of the fish. A factorial mating design was used to estimate the effects of cross, heat shock (ploidy), and their interaction. With the exception of the chinook (♂) × chum (♀) cross, all combinations produced offspring that survived to yolk absorption. Survival of heat-shocked groups was lower than that of diploid controls at the eyed stage and at hatching, but not different from diploids between hatching and yolk absorption. Induced triploidy did not increase the viability of interspecies hybrids. The level of triploid induction averaged across all heat-shocked crosses was 88% in one year and 95% in the other. Seawater tolerance (measured by 24-h seawater challenge survival) was higher in chinook hybrids with pink and chum salmon than in chinook controls. Seawater tolerance did not differ between diploid controls and heat-shocked triploid groups. Combinations that had seawater tolerance shortly after yolk absorption include chinook × pink, pink × chinook, and chum × chinook. |
format |
Article in Journal/Newspaper |
author |
Joyce, John E. Heintz, Ron Smoker, William W. Gharrett, A. J. |
author_facet |
Joyce, John E. Heintz, Ron Smoker, William W. Gharrett, A. J. |
author_sort |
Joyce, John E. |
title |
Survival to Fry and Seawater Tolerance of Diploid and Triploid Hybrids between Chinook ( Oncorhynchus tshawytscha ), Chum ( O . keta ), and Pink Salmon ( O . gorbuscha ) |
title_short |
Survival to Fry and Seawater Tolerance of Diploid and Triploid Hybrids between Chinook ( Oncorhynchus tshawytscha ), Chum ( O . keta ), and Pink Salmon ( O . gorbuscha ) |
title_full |
Survival to Fry and Seawater Tolerance of Diploid and Triploid Hybrids between Chinook ( Oncorhynchus tshawytscha ), Chum ( O . keta ), and Pink Salmon ( O . gorbuscha ) |
title_fullStr |
Survival to Fry and Seawater Tolerance of Diploid and Triploid Hybrids between Chinook ( Oncorhynchus tshawytscha ), Chum ( O . keta ), and Pink Salmon ( O . gorbuscha ) |
title_full_unstemmed |
Survival to Fry and Seawater Tolerance of Diploid and Triploid Hybrids between Chinook ( Oncorhynchus tshawytscha ), Chum ( O . keta ), and Pink Salmon ( O . gorbuscha ) |
title_sort |
survival to fry and seawater tolerance of diploid and triploid hybrids between chinook ( oncorhynchus tshawytscha ), chum ( o . keta ), and pink salmon ( o . gorbuscha ) |
publisher |
Canadian Science Publishing |
publishDate |
1994 |
url |
http://dx.doi.org/10.1139/f94-291 http://www.nrcresearchpress.com/doi/pdf/10.1139/f94-291 |
long_lat |
ENVELOPE(-19.455,-19.455,65.656,65.656) |
geographic |
Keta |
geographic_facet |
Keta |
genre |
Pink salmon |
genre_facet |
Pink salmon |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 51, issue S1, page 25-30 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f94-291 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
51 |
container_issue |
S1 |
container_start_page |
25 |
op_container_end_page |
30 |
_version_ |
1785573047545102336 |