Predicting biomass of Atlantic salmon from morphometric lateral measurements
Previously biomass predictions have been derived from simple weight—length relationships. This study measured a variety of truss and conventional dimensions covering the lateral body profile of Atlantic salmon Salmo salar and, using regression analysis, developed a series of multifactor weight—later...
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crwiley:10.1111/j.1095-8649.1996.tb00042.x 2024-06-02T08:03:29+00:00 Predicting biomass of Atlantic salmon from morphometric lateral measurements Beddow, T. A. Ross, L. G. 1996 http://dx.doi.org/10.1111/j.1095-8649.1996.tb00042.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1996.tb00042.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1996.tb00042.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 49, issue 3, page 469-482 ISSN 0022-1112 1095-8649 journal-article 1996 crwiley https://doi.org/10.1111/j.1095-8649.1996.tb00042.x 2024-05-03T11:57:33Z Previously biomass predictions have been derived from simple weight—length relationships. This study measured a variety of truss and conventional dimensions covering the lateral body profile of Atlantic salmon Salmo salar and, using regression analysis, developed a series of multifactor weight—lateral dimension relationships. Single‐factor regression equations proved inadequate for predicting weight with percentage errors between real and estimated values ranging from −1.2±6.8% to 72.5 ± 225.6%. Fifty‐two multifactor regression equations were generated that predicted accurately the weight of individual fish to within ±2% using combinations of conventional and truss measurements. Regression coefficients were found to be significantly different ( P <0.05) between Scottish and Norwegian strains, indicating morphological differences between the genetic groups. Norwegian fish were generally heavier for a given length compared to Scottish strains. This suggests that morphologically different strains of S. salar would require individual weight: lateral dimension relationships to be developed in order to predict biomass accurately to within commercially acceptable levels. Article in Journal/Newspaper Atlantic salmon Salmo salar Wiley Online Library Journal of Fish Biology 49 3 469 482 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Previously biomass predictions have been derived from simple weight—length relationships. This study measured a variety of truss and conventional dimensions covering the lateral body profile of Atlantic salmon Salmo salar and, using regression analysis, developed a series of multifactor weight—lateral dimension relationships. Single‐factor regression equations proved inadequate for predicting weight with percentage errors between real and estimated values ranging from −1.2±6.8% to 72.5 ± 225.6%. Fifty‐two multifactor regression equations were generated that predicted accurately the weight of individual fish to within ±2% using combinations of conventional and truss measurements. Regression coefficients were found to be significantly different ( P <0.05) between Scottish and Norwegian strains, indicating morphological differences between the genetic groups. Norwegian fish were generally heavier for a given length compared to Scottish strains. This suggests that morphologically different strains of S. salar would require individual weight: lateral dimension relationships to be developed in order to predict biomass accurately to within commercially acceptable levels. |
format |
Article in Journal/Newspaper |
author |
Beddow, T. A. Ross, L. G. |
spellingShingle |
Beddow, T. A. Ross, L. G. Predicting biomass of Atlantic salmon from morphometric lateral measurements |
author_facet |
Beddow, T. A. Ross, L. G. |
author_sort |
Beddow, T. A. |
title |
Predicting biomass of Atlantic salmon from morphometric lateral measurements |
title_short |
Predicting biomass of Atlantic salmon from morphometric lateral measurements |
title_full |
Predicting biomass of Atlantic salmon from morphometric lateral measurements |
title_fullStr |
Predicting biomass of Atlantic salmon from morphometric lateral measurements |
title_full_unstemmed |
Predicting biomass of Atlantic salmon from morphometric lateral measurements |
title_sort |
predicting biomass of atlantic salmon from morphometric lateral measurements |
publisher |
Wiley |
publishDate |
1996 |
url |
http://dx.doi.org/10.1111/j.1095-8649.1996.tb00042.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1996.tb00042.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1996.tb00042.x |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Journal of Fish Biology volume 49, issue 3, page 469-482 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1095-8649.1996.tb00042.x |
container_title |
Journal of Fish Biology |
container_volume |
49 |
container_issue |
3 |
container_start_page |
469 |
op_container_end_page |
482 |
_version_ |
1800748012109037568 |