What Causes Variability in Pink Salmon Family Size?
Abstract To study family‐specific variation in the survival of pink salmon Oncorhynchus gorbuscha , we partitioned family size into four life history divisions: (1) maternal fecundity, (2) deposition of fertilized eggs and egg loss from the redd, (3) freshwater survival (and male potency), and (4) m...
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crwiley:10.1577/t07-050.1 2023-12-03T10:28:35+01:00 What Causes Variability in Pink Salmon Family Size? Geiger, Harold J. Wang, Ivan Malecha, Pat Hebert, Kyle Smoker, William W. Gharrett, Anthony J. 2007 http://dx.doi.org/10.1577/t07-050.1 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1577/T07-050.1 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Transactions of the American Fisheries Society volume 136, issue 6, page 1688-1698 ISSN 0002-8487 1548-8659 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2007 crwiley https://doi.org/10.1577/t07-050.1 2023-11-09T13:17:06Z Abstract To study family‐specific variation in the survival of pink salmon Oncorhynchus gorbuscha , we partitioned family size into four life history divisions: (1) maternal fecundity, (2) deposition of fertilized eggs and egg loss from the redd, (3) freshwater survival (and male potency), and (4) marine survival. We directly measured the variability in fecundity and then measured the family‐specific variability of freshwater survival in several Alaskan hatchery populations. Next, we measured freshwater survival in spatially clustered groups of wild pink salmon (not identified to a specific dam or sire) in Prince William Sound, Alaska. Drawing on estimates of the family‐specific variation of marine survival in pink salmon from previous studies, we concluded that family‐specific egg deposition processes and family‐specific variability in the marine environment were the primary sources of the overall variability in pink salmon family size, at least in the populations studied. We hypothesize that the freshwater environment generally induces lower variability in family size than does the marine environment. If this is so, it appears that pink salmon populations are more finely adapted to the freshwater environment, presumably because this environment is more constant. Finally, we speculate that the marine environment is too unpredictable to permit the same level of adaptation of many traits closely linked to marine survival. Article in Journal/Newspaper Oncorhynchus gorbuscha Pink salmon Alaska Wiley Online Library (via Crossref) Transactions of the American Fisheries Society 136 6 1688 1698 |
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Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Geiger, Harold J. Wang, Ivan Malecha, Pat Hebert, Kyle Smoker, William W. Gharrett, Anthony J. What Causes Variability in Pink Salmon Family Size? |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Abstract To study family‐specific variation in the survival of pink salmon Oncorhynchus gorbuscha , we partitioned family size into four life history divisions: (1) maternal fecundity, (2) deposition of fertilized eggs and egg loss from the redd, (3) freshwater survival (and male potency), and (4) marine survival. We directly measured the variability in fecundity and then measured the family‐specific variability of freshwater survival in several Alaskan hatchery populations. Next, we measured freshwater survival in spatially clustered groups of wild pink salmon (not identified to a specific dam or sire) in Prince William Sound, Alaska. Drawing on estimates of the family‐specific variation of marine survival in pink salmon from previous studies, we concluded that family‐specific egg deposition processes and family‐specific variability in the marine environment were the primary sources of the overall variability in pink salmon family size, at least in the populations studied. We hypothesize that the freshwater environment generally induces lower variability in family size than does the marine environment. If this is so, it appears that pink salmon populations are more finely adapted to the freshwater environment, presumably because this environment is more constant. Finally, we speculate that the marine environment is too unpredictable to permit the same level of adaptation of many traits closely linked to marine survival. |
format |
Article in Journal/Newspaper |
author |
Geiger, Harold J. Wang, Ivan Malecha, Pat Hebert, Kyle Smoker, William W. Gharrett, Anthony J. |
author_facet |
Geiger, Harold J. Wang, Ivan Malecha, Pat Hebert, Kyle Smoker, William W. Gharrett, Anthony J. |
author_sort |
Geiger, Harold J. |
title |
What Causes Variability in Pink Salmon Family Size? |
title_short |
What Causes Variability in Pink Salmon Family Size? |
title_full |
What Causes Variability in Pink Salmon Family Size? |
title_fullStr |
What Causes Variability in Pink Salmon Family Size? |
title_full_unstemmed |
What Causes Variability in Pink Salmon Family Size? |
title_sort |
what causes variability in pink salmon family size? |
publisher |
Wiley |
publishDate |
2007 |
url |
http://dx.doi.org/10.1577/t07-050.1 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1577/T07-050.1 |
genre |
Oncorhynchus gorbuscha Pink salmon Alaska |
genre_facet |
Oncorhynchus gorbuscha Pink salmon Alaska |
op_source |
Transactions of the American Fisheries Society volume 136, issue 6, page 1688-1698 ISSN 0002-8487 1548-8659 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1577/t07-050.1 |
container_title |
Transactions of the American Fisheries Society |
container_volume |
136 |
container_issue |
6 |
container_start_page |
1688 |
op_container_end_page |
1698 |
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1784253336126488576 |