An aerial method of assessing spawning activity of Atlantic salmon, Salmo salar L., and brown trout, Salmo trutta L., in Norwegian streams
A method using light aircraft to observe spawning activity of Atlantic salmon and brown trout in some Norwegian streams was tested between the years 1981 and 83. From the air, spawning redds of these species appear as light, oval spots in the river bottom. The method was successfully applied to most...
Published in: | Journal of Fish Biology |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
1986
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/j.1095-8649.1986.tb05170.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1986.tb05170.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1986.tb05170.x |
id |
crwiley:10.1111/j.1095-8649.1986.tb05170.x |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/j.1095-8649.1986.tb05170.x 2024-06-02T08:03:27+00:00 An aerial method of assessing spawning activity of Atlantic salmon, Salmo salar L., and brown trout, Salmo trutta L., in Norwegian streams Heggberget, T. G. Haukebø, T. Veie‐Rosvoll, B. 1986 http://dx.doi.org/10.1111/j.1095-8649.1986.tb05170.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1986.tb05170.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1986.tb05170.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 28, issue 3, page 335-342 ISSN 0022-1112 1095-8649 journal-article 1986 crwiley https://doi.org/10.1111/j.1095-8649.1986.tb05170.x 2024-05-03T10:37:58Z A method using light aircraft to observe spawning activity of Atlantic salmon and brown trout in some Norwegian streams was tested between the years 1981 and 83. From the air, spawning redds of these species appear as light, oval spots in the river bottom. The method was successfully applied to most of the rivers studied, and information about numbers of redds, distribution of redds and spawning times was obtained. However, it has several limitations, the most important being that it proved to be unsuccessful in a deep river with high water turbidity. Also, during periods with high precipitation and high water level, the method cannot be used. Several quantitative and qualitative aspects of the results obtained by this technique are discussed. Article in Journal/Newspaper Atlantic salmon Salmo salar Wiley Online Library Journal of Fish Biology 28 3 335 342 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
A method using light aircraft to observe spawning activity of Atlantic salmon and brown trout in some Norwegian streams was tested between the years 1981 and 83. From the air, spawning redds of these species appear as light, oval spots in the river bottom. The method was successfully applied to most of the rivers studied, and information about numbers of redds, distribution of redds and spawning times was obtained. However, it has several limitations, the most important being that it proved to be unsuccessful in a deep river with high water turbidity. Also, during periods with high precipitation and high water level, the method cannot be used. Several quantitative and qualitative aspects of the results obtained by this technique are discussed. |
format |
Article in Journal/Newspaper |
author |
Heggberget, T. G. Haukebø, T. Veie‐Rosvoll, B. |
spellingShingle |
Heggberget, T. G. Haukebø, T. Veie‐Rosvoll, B. An aerial method of assessing spawning activity of Atlantic salmon, Salmo salar L., and brown trout, Salmo trutta L., in Norwegian streams |
author_facet |
Heggberget, T. G. Haukebø, T. Veie‐Rosvoll, B. |
author_sort |
Heggberget, T. G. |
title |
An aerial method of assessing spawning activity of Atlantic salmon, Salmo salar L., and brown trout, Salmo trutta L., in Norwegian streams |
title_short |
An aerial method of assessing spawning activity of Atlantic salmon, Salmo salar L., and brown trout, Salmo trutta L., in Norwegian streams |
title_full |
An aerial method of assessing spawning activity of Atlantic salmon, Salmo salar L., and brown trout, Salmo trutta L., in Norwegian streams |
title_fullStr |
An aerial method of assessing spawning activity of Atlantic salmon, Salmo salar L., and brown trout, Salmo trutta L., in Norwegian streams |
title_full_unstemmed |
An aerial method of assessing spawning activity of Atlantic salmon, Salmo salar L., and brown trout, Salmo trutta L., in Norwegian streams |
title_sort |
aerial method of assessing spawning activity of atlantic salmon, salmo salar l., and brown trout, salmo trutta l., in norwegian streams |
publisher |
Wiley |
publishDate |
1986 |
url |
http://dx.doi.org/10.1111/j.1095-8649.1986.tb05170.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1986.tb05170.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1986.tb05170.x |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Journal of Fish Biology volume 28, issue 3, page 335-342 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1095-8649.1986.tb05170.x |
container_title |
Journal of Fish Biology |
container_volume |
28 |
container_issue |
3 |
container_start_page |
335 |
op_container_end_page |
342 |
_version_ |
1800747979182702592 |