气候变化领域集成服务门户(CCPortal): Carbon, nitrogen and lipid content and egg and pellet production of female C. hyperboreus in situ and during incubation experiments

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.811157
	Carbon, nitrogen and lipid content and egg and pellet production of female C. hyperboreus in situ and during incubation experiments
	Henriksen; Marie Vestergaard; Jung-Madsen; Signe; Nielsen; Torkel Gissel; Møller; Eva Friis; Henriksen; Karen Vestergaard; Markager; Stiig; Hansen; Benni Winding
发布日期	2012-05-03
数据集类型	dataset
英文简介	The effects of temperature and food availability on feeding and egg production of the Arctic copepod Calanus hyperboreus were investigated in Disko Bay, western Greenland, from winter to spring 2009. The abundance of females in the near bottom layer and the egg production of C. hyperboreus prior to the spring bloom document that reproduction relies on lipid stores. The maximum in situ egg production (± SE) of 54 ± 8 eggs female/d was recorded in mid-February at chlorophyll a concentrations below 0.1 µg/l, whereas no egg production was observed in mid-April when the spring bloom developed. After reproduction, the females migrated to the surface layer to exploit the bloom and refill their lipid stores. In 2 laboratory experiments, initiated before and during the spring bloom, mature females were kept with and without food at 5 different temperatures ranging from 0 to 10°C and the fecal pellet and egg production were monitored. Food had a clear effect on fecal pellet production but no effect on egg production, while temperature did not have an effect on egg or fecal pellet production in any of the experiments. Analyses of carbon and lipid content of the females before and after the experiments did not reflect any effect of food or temperature in the pre-bloom experiment, whereas in the bloom experiment a clear positive effect of food was detected in female biochemical profiles. The lack of a temperature response suggests a future warmer ocean could be unfavorable for C. hyperboreus compared to smaller Calanus spp. which are reported to exploit minor temperature elevations for increased egg production.
空间范围	Latitude: 69.250000 * Longitude: -53.550000
时间范围	2009-02-10T00:00:00 - 2009-04-17T00:00:00
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/215528
推荐引用方式 GB/T 7714	Henriksen,Marie Vestergaard,Jung-Madsen,et al. Carbon, nitrogen and lipid content and egg and pellet production of female C. hyperboreus in situ and during incubation experiments.2012-05-03.https://doi.org/10.1594/PANGAEA.811157.