論文 - 詳細
| RRC ID | 58925 |
|---|---|
| 著者 | Evangelista C, Diaz Pauli B, Vøllestad LA, Edeline E. |
| タイトル | Stoichiometric consequences of size-selective mortality: An experimental test using the Japanese medaka (Oryzias latipes). |
| ジャーナル | Sci Total Environ |
| Abstract |
The determinants of intraspecific stoichiometric variation remain difficult to elucidate due to their multiple origins (e.g. genetic vs. environmental) and potential interactive effects. We evaluated whether two size-selected lines of medaka (Oryzias latipes) with contrasted life-history strategies (small- and large-breeder lines with slow growth and early maturity vs. fast growth and late maturity) differed in their organismal stoichiometry (percentage and ratios of carbon [C], nitrogen [N] and phosphorus [P]) in a mesocosm experiment. We also tested how size-selection interacted with environmental conditions (i.e. two levels of fish density and light intensity), body condition and sex. Results showed that large-breeder fish were significantly N-enriched compared to small-breeders, while the two size-selected lines did not differ in body P composition. Size-selection interacted with density - high density only affected small-breeders leading to decreasing %C and C: N - and with sex - large-breeder females had higher %C and C:N values than large-breeder males. Finally, C:P and N:P ratios increased with body condition due to decreasing %P. Overall, our results show that the ecological consequences of size-selective mortality extend to organismal stoichiometry and may, from there, change nutrient cycling and ecosystem functioning. |
| 巻・号 | 724 |
| ページ | 138193 |
| 公開日 | 2020-7-1 |
| DOI | 10.1016/j.scitotenv.2020.138193 |
| PII | S0048-9697(20)31706-X |
| PMID | 32247139 |
| MeSH | Animals Carbon Ecosystem Female Male Nitrogen Oryzias* Phosphorus |
| IF | 6.551 |
| 引用数 | 0 |
| オルトメトリクス指標 |
オルトメトリクス指標項目
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| 最多言及媒体 | X(Twitter) |
| 各媒体での言及数の合計 | 10 |
| 過去6か月間でのオルトメトリクス指標の変動値 | 0.0 |
| リソース情報 | |
| メダカ | Kiyosu (WS1177) |