Why are dwarf fish so small? An energetic analysis of polymorphism in lake whitefish ( Coregonus clupeaformis )
Sympatric populations of dwarf lake whitefish (Coregonus clupeaformis) (DLW) and normal lake whitefish (NLW) commonly occur in north temperate and subarctic lakes. DLW have a much lower growth, mature earlier, and have a shorter life span than NLW. Furthermore, they are usually not found when cisco...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
2001
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/f00-252 http://www.nrcresearchpress.com/doi/pdf/10.1139/f00-252 |
id |
crcansciencepubl:10.1139/f00-252 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/f00-252 2024-04-28T08:40:00+00:00 Why are dwarf fish so small? An energetic analysis of polymorphism in lake whitefish ( Coregonus clupeaformis ) Trudel, Marc Tremblay, Alain Schetagne, Roger Rasmussen, Joseph B 2001 http://dx.doi.org/10.1139/f00-252 http://www.nrcresearchpress.com/doi/pdf/10.1139/f00-252 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 58, issue 2, page 394-405 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2001 crcansciencepubl https://doi.org/10.1139/f00-252 2024-04-09T06:56:26Z Sympatric populations of dwarf lake whitefish (Coregonus clupeaformis) (DLW) and normal lake whitefish (NLW) commonly occur in north temperate and subarctic lakes. DLW have a much lower growth, mature earlier, and have a shorter life span than NLW. Furthermore, they are usually not found when cisco (Coregonus artedi) are present, possibly due to competitive exclusion. In this study, we compared the energy budget of DLW, NLW, and cisco using food consumption rates estimated with mass balance models of chemical tracers (i.e., mercury and radiocesium). These chemicals are globally distributed and can be readily detected in fish and their prey. Our analysis showed that the energy budget of DLW and cisco was similar. DLW and cisco consumed on average 4050% more food than NLW. The conversion efficiency of DLW and cisco was two to three times lower than that of NLW. These results suggest that DLW and cisco allocated a larger fraction of their energy budget to metabolism than NLW. Our analysis also suggests that the earlier maturation and shorter life span of DLW and cisco may be due to their higher metabolic rates. Article in Journal/Newspaper Subarctic Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 58 2 394 405 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Trudel, Marc Tremblay, Alain Schetagne, Roger Rasmussen, Joseph B Why are dwarf fish so small? An energetic analysis of polymorphism in lake whitefish ( Coregonus clupeaformis ) |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Sympatric populations of dwarf lake whitefish (Coregonus clupeaformis) (DLW) and normal lake whitefish (NLW) commonly occur in north temperate and subarctic lakes. DLW have a much lower growth, mature earlier, and have a shorter life span than NLW. Furthermore, they are usually not found when cisco (Coregonus artedi) are present, possibly due to competitive exclusion. In this study, we compared the energy budget of DLW, NLW, and cisco using food consumption rates estimated with mass balance models of chemical tracers (i.e., mercury and radiocesium). These chemicals are globally distributed and can be readily detected in fish and their prey. Our analysis showed that the energy budget of DLW and cisco was similar. DLW and cisco consumed on average 4050% more food than NLW. The conversion efficiency of DLW and cisco was two to three times lower than that of NLW. These results suggest that DLW and cisco allocated a larger fraction of their energy budget to metabolism than NLW. Our analysis also suggests that the earlier maturation and shorter life span of DLW and cisco may be due to their higher metabolic rates. |
format |
Article in Journal/Newspaper |
author |
Trudel, Marc Tremblay, Alain Schetagne, Roger Rasmussen, Joseph B |
author_facet |
Trudel, Marc Tremblay, Alain Schetagne, Roger Rasmussen, Joseph B |
author_sort |
Trudel, Marc |
title |
Why are dwarf fish so small? An energetic analysis of polymorphism in lake whitefish ( Coregonus clupeaformis ) |
title_short |
Why are dwarf fish so small? An energetic analysis of polymorphism in lake whitefish ( Coregonus clupeaformis ) |
title_full |
Why are dwarf fish so small? An energetic analysis of polymorphism in lake whitefish ( Coregonus clupeaformis ) |
title_fullStr |
Why are dwarf fish so small? An energetic analysis of polymorphism in lake whitefish ( Coregonus clupeaformis ) |
title_full_unstemmed |
Why are dwarf fish so small? An energetic analysis of polymorphism in lake whitefish ( Coregonus clupeaformis ) |
title_sort |
why are dwarf fish so small? an energetic analysis of polymorphism in lake whitefish ( coregonus clupeaformis ) |
publisher |
Canadian Science Publishing |
publishDate |
2001 |
url |
http://dx.doi.org/10.1139/f00-252 http://www.nrcresearchpress.com/doi/pdf/10.1139/f00-252 |
genre |
Subarctic |
genre_facet |
Subarctic |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 58, issue 2, page 394-405 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f00-252 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
58 |
container_issue |
2 |
container_start_page |
394 |
op_container_end_page |
405 |
_version_ |
1797570806594666496 |