Phenotypical responses of Fucus vesiculosus germlings to warming, acidification, nutrient enrichment and local upwelling under natural fluctuations (July - September 2014)

During summer 2014 (mid-July - mid-September 2014), early life-stage Fucus vesiculosus were exposed to combined ocean acidification and warming (OAW) in the presence and absence of enhanced nutrient levels (OAW x N experiment). Subsequently, F. vesiculosus germlings were exposed to a final upwelling disturbance during 3 days (mid-September 2014). Experiments were performed in the near-natural scenario "Kiel Outdoor Benthocosms" including natural fluctuations in the southwestern Baltic Sea, Kiel Fjord, Germany (54°27 'N, 10°11 'W). Genetically different sibling groups and different levels of genetic diversity were employed to test to which extent genetic variation would result in response variation.
The data presented here show the phenotypical response (growth and survival) of the different experimental populations of F. vesiculosus under OAW, nutrient enrichment and the upwelling event. Log effect ratios demonstrate the responses to enhanced OAW and nutrient concentrations relative to the ambient conditons. Carbon, nitrogen content (% DW) and C:N ratios were measured after the exposure of ambient and high nutrient levels. Abiotic conditions the OAW x nutrient experiment and the upwelling event, are shown.

2014年夏季（2014年7月中旬至9月中旬），研究人员将早期发育阶段的墨角藻（Fucus vesiculosus）置于添加或不添加富集营养盐的组合海洋酸化与变暖（OAW）环境中进行暴露处理（即OAW×N实验）。随后，于2014年9月中旬对该墨角藻幼苗开展为期3天的最终上升流扰动处理。实验基于模拟德国基尔峡湾（北纬54°27′，西经10°11′）波罗的海西南部海域自然环境波动的近自然场景“基尔户外底栖中宇宙（Kiel Outdoor Benthocosms）”完成。本实验采用遗传背景各异的同胞群及不同遗传多样性水平的受试材料，以探究遗传变异对响应差异的影响程度。
本数据集呈现了不同实验种群的墨角藻在OAW胁迫、营养盐富集及上升流扰动下的表型响应（生长与存活情况）。其中，对数效应比用于表征相较于对照环境条件，增强型OAW与高浓度营养盐所引发的响应。碳、氮含量（以干重百分比计，% DW）及碳氮比（C:N）在受试材料经过对照环境及高营养盐暴露处理后完成测定。OAW×营养盐实验与上升流扰动实验的非生物环境条件已一并呈现。