Scavenging by Alloperla (Plecoptera: Chloroperlidae) nymphs on dead pink ( Oncorhynchus gorbuscha ) and chum ( O . keta ) salmon embryos
The relationship between stonefly nymphs of the genus Alloperla and developing pink and chum salmon embryos was studied in Harris River, Alaska, from August, 1965, to April, 1966. Polyethylene containers with alternating layers of salmon eggs and washed gravel and containers with washed gravel only...
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Canadian Science Publishing
1968
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Online Access: | http://dx.doi.org/10.1139/z68-109 http://www.nrcresearchpress.com/doi/pdf/10.1139/z68-109 |
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crcansciencepubl:10.1139/z68-109 2024-04-28T08:35:07+00:00 Scavenging by Alloperla (Plecoptera: Chloroperlidae) nymphs on dead pink ( Oncorhynchus gorbuscha ) and chum ( O . keta ) salmon embryos Nicola, Stephen J. 1968 http://dx.doi.org/10.1139/z68-109 http://www.nrcresearchpress.com/doi/pdf/10.1139/z68-109 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 46, issue 4, page 787-796 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 1968 crcansciencepubl https://doi.org/10.1139/z68-109 2024-04-02T06:55:53Z The relationship between stonefly nymphs of the genus Alloperla and developing pink and chum salmon embryos was studied in Harris River, Alaska, from August, 1965, to April, 1966. Polyethylene containers with alternating layers of salmon eggs and washed gravel and containers with washed gravel only were buried in sections of an upstream spawning riffle and were removed and examined in three sampling periods. Correlation and linear regression analysis of numbers of missing embryos, dead embryos, and stonefly nymphs in the containers supported the hypothesis that the nymphs were scavengers but failed to support the hypothesis that they were predators.Some of the beneficial effects to living embryos of scavenging by nymphs is discussed, as well as the likelihood of occurrence of predation by stonefly nymphs in general. Article in Journal/Newspaper Oncorhynchus gorbuscha Alaska Canadian Science Publishing Canadian Journal of Zoology 46 4 787 796 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
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 Nicola, Stephen J. Scavenging by Alloperla (Plecoptera: Chloroperlidae) nymphs on dead pink ( Oncorhynchus gorbuscha ) and chum ( O . keta ) salmon embryos |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
The relationship between stonefly nymphs of the genus Alloperla and developing pink and chum salmon embryos was studied in Harris River, Alaska, from August, 1965, to April, 1966. Polyethylene containers with alternating layers of salmon eggs and washed gravel and containers with washed gravel only were buried in sections of an upstream spawning riffle and were removed and examined in three sampling periods. Correlation and linear regression analysis of numbers of missing embryos, dead embryos, and stonefly nymphs in the containers supported the hypothesis that the nymphs were scavengers but failed to support the hypothesis that they were predators.Some of the beneficial effects to living embryos of scavenging by nymphs is discussed, as well as the likelihood of occurrence of predation by stonefly nymphs in general. |
format |
Article in Journal/Newspaper |
author |
Nicola, Stephen J. |
author_facet |
Nicola, Stephen J. |
author_sort |
Nicola, Stephen J. |
title |
Scavenging by Alloperla (Plecoptera: Chloroperlidae) nymphs on dead pink ( Oncorhynchus gorbuscha ) and chum ( O . keta ) salmon embryos |
title_short |
Scavenging by Alloperla (Plecoptera: Chloroperlidae) nymphs on dead pink ( Oncorhynchus gorbuscha ) and chum ( O . keta ) salmon embryos |
title_full |
Scavenging by Alloperla (Plecoptera: Chloroperlidae) nymphs on dead pink ( Oncorhynchus gorbuscha ) and chum ( O . keta ) salmon embryos |
title_fullStr |
Scavenging by Alloperla (Plecoptera: Chloroperlidae) nymphs on dead pink ( Oncorhynchus gorbuscha ) and chum ( O . keta ) salmon embryos |
title_full_unstemmed |
Scavenging by Alloperla (Plecoptera: Chloroperlidae) nymphs on dead pink ( Oncorhynchus gorbuscha ) and chum ( O . keta ) salmon embryos |
title_sort |
scavenging by alloperla (plecoptera: chloroperlidae) nymphs on dead pink ( oncorhynchus gorbuscha ) and chum ( o . keta ) salmon embryos |
publisher |
Canadian Science Publishing |
publishDate |
1968 |
url |
http://dx.doi.org/10.1139/z68-109 http://www.nrcresearchpress.com/doi/pdf/10.1139/z68-109 |
genre |
Oncorhynchus gorbuscha Alaska |
genre_facet |
Oncorhynchus gorbuscha Alaska |
op_source |
Canadian Journal of Zoology volume 46, issue 4, page 787-796 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z68-109 |
container_title |
Canadian Journal of Zoology |
container_volume |
46 |
container_issue |
4 |
container_start_page |
787 |
op_container_end_page |
796 |
_version_ |
1797567269282250752 |