Lipid class composition as a measure of nutritional condition in individual larval Atlantic cod ( Gadus morhua)
Atlantic cod (Gadus morhua) larvae were reared under various feeding environments to assess their lipid class composition and survival during development. Lipids were assessed in individual larvae. Triacylglycerol (TAG), phospholipids (PL), and defatted dry weight (DDW) all fell during yolk absorpti...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
1995
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/f95-126 http://www.nrcresearchpress.com/doi/pdf/10.1139/f95-126 |
id |
crcansciencepubl:10.1139/f95-126 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/f95-126 2024-06-23T07:51:02+00:00 Lipid class composition as a measure of nutritional condition in individual larval Atlantic cod ( Gadus morhua) Lochmann, Steve E. Maillet, Gary L. Frank, Kenneth T. Taggart, Christopher T. 1995 http://dx.doi.org/10.1139/f95-126 http://www.nrcresearchpress.com/doi/pdf/10.1139/f95-126 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 52, issue 6, page 1294-1306 ISSN 0706-652X 1205-7533 journal-article 1995 crcansciencepubl https://doi.org/10.1139/f95-126 2024-06-06T04:11:19Z Atlantic cod (Gadus morhua) larvae were reared under various feeding environments to assess their lipid class composition and survival during development. Lipids were assessed in individual larvae. Triacylglycerol (TAG), phospholipids (PL), and defatted dry weight (DDW) all fell during yolk absorption. TAG increased after initiation of exogenous feeding in different feeding treatments but did not increase in starved larvae. The percentage of individuals greater than 8 d old with high TAG or PL increased with increasing prey concentration. Survivorship was low in all feeding trials, but groups with a larger percentage of individuals in poor condition tended to exhibit a higher risk of death. We suggest a condition index based on a discriminant function using TAG, PL, and DDW. We assessed the condition of field-collected larvae based on this index. Article in Journal/Newspaper atlantic cod Gadus morhua Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 52 6 1294 1306 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
description |
Atlantic cod (Gadus morhua) larvae were reared under various feeding environments to assess their lipid class composition and survival during development. Lipids were assessed in individual larvae. Triacylglycerol (TAG), phospholipids (PL), and defatted dry weight (DDW) all fell during yolk absorption. TAG increased after initiation of exogenous feeding in different feeding treatments but did not increase in starved larvae. The percentage of individuals greater than 8 d old with high TAG or PL increased with increasing prey concentration. Survivorship was low in all feeding trials, but groups with a larger percentage of individuals in poor condition tended to exhibit a higher risk of death. We suggest a condition index based on a discriminant function using TAG, PL, and DDW. We assessed the condition of field-collected larvae based on this index. |
format |
Article in Journal/Newspaper |
author |
Lochmann, Steve E. Maillet, Gary L. Frank, Kenneth T. Taggart, Christopher T. |
spellingShingle |
Lochmann, Steve E. Maillet, Gary L. Frank, Kenneth T. Taggart, Christopher T. Lipid class composition as a measure of nutritional condition in individual larval Atlantic cod ( Gadus morhua) |
author_facet |
Lochmann, Steve E. Maillet, Gary L. Frank, Kenneth T. Taggart, Christopher T. |
author_sort |
Lochmann, Steve E. |
title |
Lipid class composition as a measure of nutritional condition in individual larval Atlantic cod ( Gadus morhua) |
title_short |
Lipid class composition as a measure of nutritional condition in individual larval Atlantic cod ( Gadus morhua) |
title_full |
Lipid class composition as a measure of nutritional condition in individual larval Atlantic cod ( Gadus morhua) |
title_fullStr |
Lipid class composition as a measure of nutritional condition in individual larval Atlantic cod ( Gadus morhua) |
title_full_unstemmed |
Lipid class composition as a measure of nutritional condition in individual larval Atlantic cod ( Gadus morhua) |
title_sort |
lipid class composition as a measure of nutritional condition in individual larval atlantic cod ( gadus morhua) |
publisher |
Canadian Science Publishing |
publishDate |
1995 |
url |
http://dx.doi.org/10.1139/f95-126 http://www.nrcresearchpress.com/doi/pdf/10.1139/f95-126 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 52, issue 6, page 1294-1306 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f95-126 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
52 |
container_issue |
6 |
container_start_page |
1294 |
op_container_end_page |
1306 |
_version_ |
1802642036559446016 |