Effect of incubation temperature on the development of five species of Pacific salmon ( Oncorhynchus) embryos and alevins
Embryo and alevin survival, time to hatching and emergence, and alevin and fry size of five species of Pacific salmon (Oncorhynchus) were observed at five incubation temperatures (2, 5, 8, 11, and 14 °C). No pink (Oncorhynchus gorbuscha) or chum (O. keta) salmon embryos survived to hatching at 2 °C....
Published in: | Canadian Journal of Zoology |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
1988
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/z88-038 http://www.nrcresearchpress.com/doi/pdf/10.1139/z88-038 |
id |
crcansciencepubl:10.1139/z88-038 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/z88-038 2024-06-23T07:55:56+00:00 Effect of incubation temperature on the development of five species of Pacific salmon ( Oncorhynchus) embryos and alevins Murray, C. B. McPhail, J. D. 1988 http://dx.doi.org/10.1139/z88-038 http://www.nrcresearchpress.com/doi/pdf/10.1139/z88-038 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 66, issue 1, page 266-273 ISSN 0008-4301 1480-3283 journal-article 1988 crcansciencepubl https://doi.org/10.1139/z88-038 2024-06-06T04:11:16Z Embryo and alevin survival, time to hatching and emergence, and alevin and fry size of five species of Pacific salmon (Oncorhynchus) were observed at five incubation temperatures (2, 5, 8, 11, and 14 °C). No pink (Oncorhynchus gorbuscha) or chum (O. keta) salmon embryos survived to hatching at 2 °C. Coho (O. kisutch) and sockeye (O. nerka) salmon had higher embryo survival at 2 °C than chinook (O. tschawytscha) salmon. At 14 °C, chum, pink, and chinook salmon had higher embryo survival than coho or sockeye salmon. In all species, peaks of embryo mortality occurred at specific developmental stages (completion of epiboly, eye pigmentation, and hatching). Alevin survival to emergence was high for all species, except for coho and pink salmon at 14 °C. Hatching and emergence time varied inversely with incubation temperature, but coho salmon hatched and emerged sooner at all temperatures than the other species. Coho and sockeye salmon alevins were larger at 2 °C, pink, chum, and chinook salmon alevins were larger at 5 and 8 °C. Coho salmon fry were larger at 2 °C, chinook and chum salmon fry were larger at 5 °C, and sockeye and pink salmon fry were larger at 8 °C. High incubation temperatures reduced fry size in all species. Each species of Pacific salmon appears to be adapted to different spawning times and temperatures, and thus indirectly to specific incubation temperatures, to ensure maximum survival and size and to maintain emergence at the most favorable time each year. Article in Journal/Newspaper Oncorhynchus gorbuscha Pink salmon Canadian Science Publishing Keta ENVELOPE(-19.455,-19.455,65.656,65.656) Pacific Sockeye ENVELOPE(-130.143,-130.143,54.160,54.160) Canadian Journal of Zoology 66 1 266 273 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
description |
Embryo and alevin survival, time to hatching and emergence, and alevin and fry size of five species of Pacific salmon (Oncorhynchus) were observed at five incubation temperatures (2, 5, 8, 11, and 14 °C). No pink (Oncorhynchus gorbuscha) or chum (O. keta) salmon embryos survived to hatching at 2 °C. Coho (O. kisutch) and sockeye (O. nerka) salmon had higher embryo survival at 2 °C than chinook (O. tschawytscha) salmon. At 14 °C, chum, pink, and chinook salmon had higher embryo survival than coho or sockeye salmon. In all species, peaks of embryo mortality occurred at specific developmental stages (completion of epiboly, eye pigmentation, and hatching). Alevin survival to emergence was high for all species, except for coho and pink salmon at 14 °C. Hatching and emergence time varied inversely with incubation temperature, but coho salmon hatched and emerged sooner at all temperatures than the other species. Coho and sockeye salmon alevins were larger at 2 °C, pink, chum, and chinook salmon alevins were larger at 5 and 8 °C. Coho salmon fry were larger at 2 °C, chinook and chum salmon fry were larger at 5 °C, and sockeye and pink salmon fry were larger at 8 °C. High incubation temperatures reduced fry size in all species. Each species of Pacific salmon appears to be adapted to different spawning times and temperatures, and thus indirectly to specific incubation temperatures, to ensure maximum survival and size and to maintain emergence at the most favorable time each year. |
format |
Article in Journal/Newspaper |
author |
Murray, C. B. McPhail, J. D. |
spellingShingle |
Murray, C. B. McPhail, J. D. Effect of incubation temperature on the development of five species of Pacific salmon ( Oncorhynchus) embryos and alevins |
author_facet |
Murray, C. B. McPhail, J. D. |
author_sort |
Murray, C. B. |
title |
Effect of incubation temperature on the development of five species of Pacific salmon ( Oncorhynchus) embryos and alevins |
title_short |
Effect of incubation temperature on the development of five species of Pacific salmon ( Oncorhynchus) embryos and alevins |
title_full |
Effect of incubation temperature on the development of five species of Pacific salmon ( Oncorhynchus) embryos and alevins |
title_fullStr |
Effect of incubation temperature on the development of five species of Pacific salmon ( Oncorhynchus) embryos and alevins |
title_full_unstemmed |
Effect of incubation temperature on the development of five species of Pacific salmon ( Oncorhynchus) embryos and alevins |
title_sort |
effect of incubation temperature on the development of five species of pacific salmon ( oncorhynchus) embryos and alevins |
publisher |
Canadian Science Publishing |
publishDate |
1988 |
url |
http://dx.doi.org/10.1139/z88-038 http://www.nrcresearchpress.com/doi/pdf/10.1139/z88-038 |
long_lat |
ENVELOPE(-19.455,-19.455,65.656,65.656) ENVELOPE(-130.143,-130.143,54.160,54.160) |
geographic |
Keta Pacific Sockeye |
geographic_facet |
Keta Pacific Sockeye |
genre |
Oncorhynchus gorbuscha Pink salmon |
genre_facet |
Oncorhynchus gorbuscha Pink salmon |
op_source |
Canadian Journal of Zoology volume 66, issue 1, page 266-273 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z88-038 |
container_title |
Canadian Journal of Zoology |
container_volume |
66 |
container_issue |
1 |
container_start_page |
266 |
op_container_end_page |
273 |
_version_ |
1802648748732448768 |