Replication data for: Seasonal changes in the diet of the bloody cockle (Senilia senilis) along the Sine Saloum inverse estuary

This dataset includes trophic biomarker data for 180 bloody cockles (Senilia senilis) collected at four stations along a downstream-upstream gradient of the Sine Saloum in Senegal in April and October 2022 (before and after the monsoon season). The dataset contains the proportions of 68 fatty acids and 10 sterols obtained from the digestive glands of the cockles, as well as the carbon and nitrogen isotopic composition values obtained from their adductor muscles. Some environmental data measured during the collection process are provided, including salinity, temperature, pH, dissolved oxygen, turbidity and chlorophyll-a concentrations. The abundances of planktonic groups, collected during sampling, are also indicated in a second table. The detailed methodology for obtaining these data is available in the associated article that uses these data: "Seasonal changes in the diet of the bloody cockle (Senilia senilis) along the Sine Saloum inverse estuary", DOI: 10.1051/alr/2025017 These data were obtained as part of the IROCWA project: https://anr.fr/Projet-ANR-19-CE32-0003

本数据集包含2022年4月与10月（季风季前后），于塞内加尔锡内萨卢姆（Sine Saloum）河沿下游-上游梯度的4个站位采集的180只血蚶（Senilia senilis）的营养生物标志物（trophic biomarker）数据。数据集涵盖从血蚶消化腺中提取的68种脂肪酸（fatty acids）与10种固醇（sterols）的相对占比，以及取自其闭壳肌（adductor muscles）的碳、氮同位素组成数值。本数据集同时纳入采样期间测得的多项环境参数，包括盐度、水温、pH值、溶解氧、浊度及叶绿素a浓度。采样期间收集的浮游类群丰度信息同样收录于第二张表格中。获取本数据集的详细方法可参阅使用该数据的相关学术论文：《锡内萨卢姆逆河口血蚶（Senilia senilis）食性的季节变化》，DOI: 10.1051/alr/2025017。本数据集为IROCWA项目的研究成果，项目链接：https://anr.fr/Projet-ANR-19-CE32-0003