Incubation and first feeding of European smelt (Osmerus eperlanus, L.) eggs and larvae using conventional hatchery equipment

this dataset contains all information collated during an experimental mass incubation and rearing of european smelt (osmerus eperlanus, l.) eggs and larvae. the experiment specifically tested (i) whether a technical modification of the egg incubations jars would improve the overall number of surviving eggs, and (ii) how first-feeding protocols for larvae could be improved. for more details please see the associated article reiser et al (2023) in aquatic living resources. the following parameters were recorded: (1) number of incubated eggs, (2) egg survival, (3) hatch success, (4) length-at-age, (5) larval mortality, and (6) larval prey consumption. data on all six parameters are provided as separate csv files. in addition, a legend of the abbreviations used in the csv files is provided. the code for analyzing the data in r is available upon request.adult european smelt caught in river weser (bremen, germany) at 53.060 (lat) and 8.864 (long).experimental rearing at thünen institute of fisheries ecology (herwigstr 31, 27572 bremerhaven, germany) at 53.524 (lat) and 8.581 (long).

本数据集汇集了在实验性大量孵化与培育欧洲鳗鲡（Osmerus eperlanus, L.）卵及幼虫过程中所收集的所有信息。实验旨在检验（i）对卵孵化器进行技术改进是否能够提升存活卵的总数，以及（ii）如何优化幼虫的首次摄食方案。欲了解更多详情，请参阅Aquatic Living Resources杂志中Reiser等（2023）发表的相关文章。记录的以下参数包括：（1）孵化卵的数量，（2）卵的存活率，（3）孵化成功率，（4）龄期长度，（5）幼虫死亡率，以及（6）幼虫摄食量。六项参数的数据均以单独的CSV文件提供。此外，还提供了CSV文件中使用缩写的图例。如需分析数据的R语言代码，请提出请求。实验所捕获的成年欧洲鳗鲡来自德国不莱梅的威悉河（53.060度纬度，8.864度经度）。实验培育工作在德国不莱梅港的图恩大学渔业生态研究所（Herwigstr 31，27572）进行，地理位置为53.524度纬度，8.581度经度。