Biochemical correlates of growth and condition in juvenile Atlantic cod ( Gadus morhua) from Newfoundland
The aim of this study was to examine how the biochemical composition of tissues varied with growth rate and condition in juvenile Atlantic cod (Gadus morhua) caught in the wild and kept in captivity. The hepatosomatic index, brain water content, and muscle sarcoplasmic protein content as well as the...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
1998
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/f98-045 http://www.nrcresearchpress.com/doi/pdf/10.1139/f98-045 |
id |
crcansciencepubl:10.1139/f98-045 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/f98-045 2024-06-23T07:51:03+00:00 Biochemical correlates of growth and condition in juvenile Atlantic cod ( Gadus morhua) from Newfoundland Couture, Patrice Dutil, Jean-Denis Guderley, Helga 1998 http://dx.doi.org/10.1139/f98-045 http://www.nrcresearchpress.com/doi/pdf/10.1139/f98-045 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 55, issue 7, page 1591-1598 ISSN 0706-652X 1205-7533 journal-article 1998 crcansciencepubl https://doi.org/10.1139/f98-045 2024-06-13T04:10:49Z The aim of this study was to examine how the biochemical composition of tissues varied with growth rate and condition in juvenile Atlantic cod (Gadus morhua) caught in the wild and kept in captivity. The hepatosomatic index, brain water content, and muscle sarcoplasmic protein content as well as the activities of phosphofructokinase, lactate dehydrogenase, nucleoside diphosphate kinase, and citrate synthase in the muscle, nucleoside diphosphate kinase and citrate synthase in the intestine, and cytochrome c oxidase and citrate synthase in the brain increased with growth rate or condition factor. Conversely, liver and muscle water contents were lower in fish with a higher growth rate. A multiple regression model that included the hepatosomatic index, water content of muscle and brain, and citrate synthase activity in the intestine explained 79.7% of the variability of growth in mass under our conditions. A similar model, using liver water content instead of muscle water content, explained 82.5% of the variability of growth in length. These easy to measure variables may be used in fisheries management to estimate the growth rate of fish in the wild. Article in Journal/Newspaper atlantic cod Gadus morhua Newfoundland Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 55 7 1591 1598 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
description |
The aim of this study was to examine how the biochemical composition of tissues varied with growth rate and condition in juvenile Atlantic cod (Gadus morhua) caught in the wild and kept in captivity. The hepatosomatic index, brain water content, and muscle sarcoplasmic protein content as well as the activities of phosphofructokinase, lactate dehydrogenase, nucleoside diphosphate kinase, and citrate synthase in the muscle, nucleoside diphosphate kinase and citrate synthase in the intestine, and cytochrome c oxidase and citrate synthase in the brain increased with growth rate or condition factor. Conversely, liver and muscle water contents were lower in fish with a higher growth rate. A multiple regression model that included the hepatosomatic index, water content of muscle and brain, and citrate synthase activity in the intestine explained 79.7% of the variability of growth in mass under our conditions. A similar model, using liver water content instead of muscle water content, explained 82.5% of the variability of growth in length. These easy to measure variables may be used in fisheries management to estimate the growth rate of fish in the wild. |
format |
Article in Journal/Newspaper |
author |
Couture, Patrice Dutil, Jean-Denis Guderley, Helga |
spellingShingle |
Couture, Patrice Dutil, Jean-Denis Guderley, Helga Biochemical correlates of growth and condition in juvenile Atlantic cod ( Gadus morhua) from Newfoundland |
author_facet |
Couture, Patrice Dutil, Jean-Denis Guderley, Helga |
author_sort |
Couture, Patrice |
title |
Biochemical correlates of growth and condition in juvenile Atlantic cod ( Gadus morhua) from Newfoundland |
title_short |
Biochemical correlates of growth and condition in juvenile Atlantic cod ( Gadus morhua) from Newfoundland |
title_full |
Biochemical correlates of growth and condition in juvenile Atlantic cod ( Gadus morhua) from Newfoundland |
title_fullStr |
Biochemical correlates of growth and condition in juvenile Atlantic cod ( Gadus morhua) from Newfoundland |
title_full_unstemmed |
Biochemical correlates of growth and condition in juvenile Atlantic cod ( Gadus morhua) from Newfoundland |
title_sort |
biochemical correlates of growth and condition in juvenile atlantic cod ( gadus morhua) from newfoundland |
publisher |
Canadian Science Publishing |
publishDate |
1998 |
url |
http://dx.doi.org/10.1139/f98-045 http://www.nrcresearchpress.com/doi/pdf/10.1139/f98-045 |
genre |
atlantic cod Gadus morhua Newfoundland |
genre_facet |
atlantic cod Gadus morhua Newfoundland |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 55, issue 7, page 1591-1598 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f98-045 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
55 |
container_issue |
7 |
container_start_page |
1591 |
op_container_end_page |
1598 |
_version_ |
1802642045779574784 |