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| DOI | 10.3354/meps14505 |
| Impact of salinity and temperature on the vital rates of co-occurring Calanus glacialis and C. finmarchicus from West Greenland | |
| 发表日期 | 2024 |
| ISSN | 0171-8630 |
| EISSN | 1616-1599 |
| 起始页码 | 729 |
| 卷号 | 729 |
| 英文摘要 | Climate change creates multiple stressors for organisms in Arctic ecosystems, such as key zooplankton species of the genus Calanus. Here, we quantified the mortality and fecal pellet production rate of Calanus finmarchicus and C. glacialis from Disko Bay, West Greenland, with respect to temperature and salinity. The 2 species were exposed to temperatures of 0, 5 and 10(degrees)C and a salinity range from 5 to 60. C. glacialis had a significantly lower mean lethal concentration (LC50) of 9 with a standard error of 1.98 at the lowest temperature, at salinities below in situ salinities, compared to C. finmarchicus (14 +/- 0.35). At high temperatures, C. glacialis LC50 was significantly lower than that at 0(degrees)C. At high salinities, the 2 species did not have significantly different LC50 values. The fecal pellet production rates were quantified at saturated food concentration (>400 mu g C l-1). No impact of salinity was observed between salinities of 25 and 40. Increases in fecal pellet production rates were observed at the limits of this range, indicating a physiological stress response. Within the 25-40 salinity range, fecal pellet production rates increased exponentially with temperature for C. finmarchicus (average Q(10) = 1.9 +/- 0.18) in the temperature range of 0-10(degrees)C, while for C. glacialis, they peaked at 5(degrees)C (average Q(10) between 0 and 5(degrees)C was 2.19 +/- 0.15). Our results demonstrate a high physiological plasticity of both Calanus species with respect to salinity. C. glacialis will be more tolerant in a future surface freshening scenario, although this advantage seems to be impaired at temperatures above 5(degrees)C. |
| 英文关键词 | Climate change; Zooplankton; Trophic cascades; Acute mortality; Ingestion rates; Q(10) |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Oceanography |
| WOS类目 | Ecology ; Marine & Freshwater Biology ; Oceanography |
| WOS记录号 | WOS:001180865100014 |
| 来源期刊 | MARINE ECOLOGY PROGRESS SERIES
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/287224 |
| 作者单位 | Technical University of Denmark; University of Copenhagen |
| 推荐引用方式 GB/T 7714 | . Impact of salinity and temperature on the vital rates of co-occurring Calanus glacialis and C. finmarchicus from West Greenland[J],2024,729. |
| APA | (2024).Impact of salinity and temperature on the vital rates of co-occurring Calanus glacialis and C. finmarchicus from West Greenland.MARINE ECOLOGY PROGRESS SERIES,729. |
| MLA | "Impact of salinity and temperature on the vital rates of co-occurring Calanus glacialis and C. finmarchicus from West Greenland".MARINE ECOLOGY PROGRESS SERIES 729(2024). |
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