Predation on Baltic Sea yolk-sac herring larvae (Clupea harengus) by the invasive ctenophore Mnemiopsis leidyi

These data set contain experimental data from a series of laboratory feeding experiments designed to investigate the predation effects of the invasive ctenophore Mnemiopsis leidyi on yolk-sac larvae of herring (Clupea harengus) in the Baltic Sea. This dataset includes detailed records of predator-prey interactions, specifically focusing on the clearance rates of M. leidyi based on variables such as larval age, predator size, and the presence of alternative prey. Key data features includes (1) predator size and clearance rates: data on the clearance rates of M. leidyi specimens of various sizes, showing the relationship between predator size and feeding efficiency on herring larvae, (2) larval age and predation: Information on how the age of herring larvae influences their susceptibility to predation by M. leidyi, and (3) prey selection experiments: results from experiments assessing the impact of the presence of alternative prey (Acartia tonsa) on the predation rates of herring larvae by M. leidyi. Environmental conditions under which the experiments were conducted, ensuring reproducibility and comparative analysis with field conditions. This dataset is crucial for understanding the potential ecological impact of M. leidyi on herring populations in the Baltic Sea, particularly in light of ongoing environmental changes and the species' invasive nature. The data support further research on jellyfish-ichthyoplankton interactions and contribute to broader ecological and fisheries management discussions.

本数据集收录了一系列实验室摄食实验的实验数据，旨在探究入侵性栉水母（Mnemiopsis leidyi）对波罗的海鲱鱼（Clupea harengus）卵黄囊期仔鱼的捕食效应。数据集包含捕食者-猎物相互作用的详细记录，重点围绕基于仔鱼日龄、捕食者体型以及替代猎物存在与否等变量的Mnemiopsis leidyi滤水率展开。核心数据特征如下：1. 捕食者体型与滤水率：不同体型的Mnemiopsis leidyi个体的滤水率数据，揭示了捕食者体型与鲱鱼仔鱼摄食效率之间的关联；2. 仔鱼日龄与捕食易感性：关于鲱鱼仔鱼日龄如何影响其被Mnemiopsis leidyi捕食的易感性的相关信息；3. 猎物选择实验：评估替代猎物（Acartia tonsa）存在与否对Mnemiopsis leidyi捕食鲱鱼仔鱼的速率产生的影响的实验结果。实验开展时的环境条件均有完整记录，以保障实验可重复开展，并可与野外环境条件进行对比分析。本数据集对于理解Mnemiopsis leidyi入侵对波罗的海鲱鱼种群的潜在生态影响至关重要，尤其是在当前环境持续变化以及该物种具有入侵性的背景下。该数据集可为水母-鱼卵仔鱼相互作用的后续研究提供支撑，并为更广泛的生态学与渔业管理相关讨论作出贡献。