Genetic, maternal, and tank determinants of growth in hatchery-reared juvenile Arctic charr ( Salvelinus alpinus )
The relative importance of genetic, maternal, and tank effects on the growth of juvenile Arctic charr (Salvelinus alpinus) was examined in an incomplete factorial mating design (4 dams × 4 sires) with stock from the Fraser River, Labrador, Canada. Egg size and hatching success were related only to d...
Published in: | Canadian Journal of Zoology |
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Canadian Science Publishing
1991
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Online Access: | http://dx.doi.org/10.1139/z91-096 http://www.nrcresearchpress.com/doi/pdf/10.1139/z91-096 |
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crcansciencepubl:10.1139/z91-096 2023-12-17T10:23:45+01:00 Genetic, maternal, and tank determinants of growth in hatchery-reared juvenile Arctic charr ( Salvelinus alpinus ) March, B. G. E. de 1991 http://dx.doi.org/10.1139/z91-096 http://www.nrcresearchpress.com/doi/pdf/10.1139/z91-096 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 69, issue 3, page 655-660 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 1991 crcansciencepubl https://doi.org/10.1139/z91-096 2023-11-19T13:39:07Z The relative importance of genetic, maternal, and tank effects on the growth of juvenile Arctic charr (Salvelinus alpinus) was examined in an incomplete factorial mating design (4 dams × 4 sires) with stock from the Fraser River, Labrador, Canada. Egg size and hatching success were related only to dams. Mean weights at 30, 75, and 125 days after swim-up, logistic growth curve parameters describing the change in the mean weight, and a measure of condition, all described within families, were significantly related to both dams and sires and were also correlated with each other. The early patterns of significant differences due to dams and sires changed after approximately 125 days. After this time the mean weights in tanks, although still increasing, became negatively correlated with their coefficients of variation (CV), which had changed only slightly with time. The magnitude of the CVs could not be attributed to specific parents. The changed patterns of differences in the means with time suggested that either (i) the social climate within tanks, measured as the CV, affected the growth of all fish even though they were neither crowded nor underfed, or (ii) an individual's ability to grow was dependent not only on its phenotype (initial weight) but also on its genotype, expressed only in data from sibs. These laboratory results may relate to unique distribution and fitness characteristics of natural Arctic charr populations. Article in Journal/Newspaper Arctic charr Arctic Salvelinus alpinus Canadian Science Publishing (via Crossref) Arctic Canada Fraser River ENVELOPE(-62.243,-62.243,56.619,56.619) Canadian Journal of Zoology 69 3 655 660 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
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 March, B. G. E. de Genetic, maternal, and tank determinants of growth in hatchery-reared juvenile Arctic charr ( Salvelinus alpinus ) |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
The relative importance of genetic, maternal, and tank effects on the growth of juvenile Arctic charr (Salvelinus alpinus) was examined in an incomplete factorial mating design (4 dams × 4 sires) with stock from the Fraser River, Labrador, Canada. Egg size and hatching success were related only to dams. Mean weights at 30, 75, and 125 days after swim-up, logistic growth curve parameters describing the change in the mean weight, and a measure of condition, all described within families, were significantly related to both dams and sires and were also correlated with each other. The early patterns of significant differences due to dams and sires changed after approximately 125 days. After this time the mean weights in tanks, although still increasing, became negatively correlated with their coefficients of variation (CV), which had changed only slightly with time. The magnitude of the CVs could not be attributed to specific parents. The changed patterns of differences in the means with time suggested that either (i) the social climate within tanks, measured as the CV, affected the growth of all fish even though they were neither crowded nor underfed, or (ii) an individual's ability to grow was dependent not only on its phenotype (initial weight) but also on its genotype, expressed only in data from sibs. These laboratory results may relate to unique distribution and fitness characteristics of natural Arctic charr populations. |
format |
Article in Journal/Newspaper |
author |
March, B. G. E. de |
author_facet |
March, B. G. E. de |
author_sort |
March, B. G. E. de |
title |
Genetic, maternal, and tank determinants of growth in hatchery-reared juvenile Arctic charr ( Salvelinus alpinus ) |
title_short |
Genetic, maternal, and tank determinants of growth in hatchery-reared juvenile Arctic charr ( Salvelinus alpinus ) |
title_full |
Genetic, maternal, and tank determinants of growth in hatchery-reared juvenile Arctic charr ( Salvelinus alpinus ) |
title_fullStr |
Genetic, maternal, and tank determinants of growth in hatchery-reared juvenile Arctic charr ( Salvelinus alpinus ) |
title_full_unstemmed |
Genetic, maternal, and tank determinants of growth in hatchery-reared juvenile Arctic charr ( Salvelinus alpinus ) |
title_sort |
genetic, maternal, and tank determinants of growth in hatchery-reared juvenile arctic charr ( salvelinus alpinus ) |
publisher |
Canadian Science Publishing |
publishDate |
1991 |
url |
http://dx.doi.org/10.1139/z91-096 http://www.nrcresearchpress.com/doi/pdf/10.1139/z91-096 |
long_lat |
ENVELOPE(-62.243,-62.243,56.619,56.619) |
geographic |
Arctic Canada Fraser River |
geographic_facet |
Arctic Canada Fraser River |
genre |
Arctic charr Arctic Salvelinus alpinus |
genre_facet |
Arctic charr Arctic Salvelinus alpinus |
op_source |
Canadian Journal of Zoology volume 69, issue 3, page 655-660 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z91-096 |
container_title |
Canadian Journal of Zoology |
container_volume |
69 |
container_issue |
3 |
container_start_page |
655 |
op_container_end_page |
660 |
_version_ |
1785560037305876480 |