- 【Updated on May 12, 2025】 Integration of CiNii Dissertations and CiNii Books into CiNii Research
- Trial version of CiNii Research Knowledge Graph Search feature is available on CiNii Labs
- Suspension and deletion of data provided by Nikkei BP
- Regarding the recording of “Research Data” and “Evidence Data”
Is metabolic rate a reliable predictor of growth and survival of brown trout (<i>Salmo trutta</i>) in the wild?
Search this article
Description
<jats:p> In salmonids, there seems to be a positive correlation between standard metabolic rate and growth rate under artificial rearing conditions. Several recent studies have suggested that phenotypic correlations between physiological or behavioural traits and developmental or life history responses might be common when assayed in low-complexity habitats but rare in those with a high degree of spatiotemporal complexity. This study provides the first test of the connection between metabolic and growth rates of juvenile brown trout (Salmo trutta) in natural streams. In two out of four streams, there was no relationship between metabolic rates and subsequent growth, whereas in the two others, growth and metabolic rates were negatively correlated. Furthermore, survival rates were either unaffected or negatively correlated with metabolic rates. These results reveal complex relationships between metabolic rate, growth, and environmental variability and suggest that (i) in the wild, negative selection on high metabolic rates may result from both juvenile mortality and reduced growth rates, (ii) the conclusions derived from laboratory experiments are not directly applicable to natural populations, and (iii) the correlations between metabolic rate and growth can prove useful after selection of the appropriate spatial and temporal scales. </jats:p>
Journal
-
- Canadian Journal of Fisheries and Aquatic Sciences
-
Canadian Journal of Fisheries and Aquatic Sciences 62 (3), 643-649, 2005-03-01
Canadian Science Publishing
- Tweet
Details 詳細情報について
-
- CRID
- 1360294645478452096
-
- DOI
- 10.1139/f04-223
-
- ISSN
- 12057533
- 0706652X
-
- Data Source
-
- Crossref