IMOS - Larval Fish Sub-Facility - Database of Marine Larval Fish Assemblages in Australian temperate and subtropical waters (1983 - ongoing)

Larval fishes are a useful metric of marine ecosystem state and change, as well as species-specific patterns in phenology. This information sheds light on larval distribution and spawning for fisheries management needs. This dataset includes larval fish abundances collected from 12 voyages around Australia since 1983, as well as more recent data from the Marine National Facility (MNF). The backbone of the dataset is from five Integrated Marine Observing Systems (IMOS) National Reference Stations (NRS) (North Stradbroke, Port Hacking, Maria Island, Kangaroo Island and Rottnest Island), between 2014 and 2021 as part of the IMOS Larval Fish Monitoring Sub-Facility of the National Mooring Network Facility (data currently available up to 2021). This adds information to the biological, ecological and oceanic measurements already sampled at these long-term monitoring sites. For information on using the data from the NRS stations and research voyages, please refer to Smith et al., 2018. It is advised that anyone using this data should read this methodology or contact the project contact person to understand the nuances of each sampling and analysis chain.

The fish larvae product is available as raw count product, where fish larvae are classified to the lowest taxonomic level possible (with 228 taxonomic groups identified so far, at either the Family, Genus, or Species level). Associated metadata includes location, temperature, salinity, net type, and tow volume.

There is a static snapshot of the database as at March 2018 (https://dx.doi.org/10.4225/69/5ab33c62f9c52), and this has been documented in a Scientific Data publication (Smith et al., 2018). This metadata record provides access to the dynamic (most recent) version of the database, which can serve as a data repository for survey of larval fish assemblages in the region.

鱼类仔鱼（Larval fishes）是反映海洋生态系统状态、变化以及物候学上物种特异性模式的有效指标。此类信息可为渔业管理需求提供鱼类仔鱼分布与产卵行为的相关见解。本数据集包含1983年以来澳大利亚周边12次科考航次采集的鱼类仔鱼丰度数据，以及来自海洋国家设施（Marine National Facility, MNF）的最新数据。本数据集的核心数据源自2014至2021年间，依托国家锚定网络设施（National Mooring Network Facility）下属的整合海洋观测系统（Integrated Marine Observing Systems, IMOS）鱼类仔鱼监测子设施，在5个国家参考站（National Reference Stations, NRS）——北斯特拉德布罗克岛、哈克宁港、玛丽亚岛、袋鼠岛以及罗特内斯特岛——采集得到（当前公开数据更新至2021年）。该数据集补充了这些长期监测站点已采集的生物学、生态学与海洋学相关测量数据。如需了解如何使用国家参考站与科考航次的相关数据，请参考Smith等，2018。建议所有使用本数据集的人员研读该方法学文档，或联系项目联系人，以明晰各采样与分析流程的细节差异。

本数据集提供鱼类仔鱼原始计数产物，所有鱼类仔鱼均被鉴定至尽可能低的分类学层级（目前已鉴定出228个分类单元，涵盖科、属或种级别）。相关元数据包含采样位置、水温、盐度、网具类型以及拖网体积。

本数据库存在2018年3月的静态快照版本（链接：https://dx.doi.org/10.4225/69/5ab33c62f9c52），该版本已在《Scientific Data》期刊的一篇论文中进行了详细记述（Smith等，2018）。本元数据记录可获取该数据库的动态（最新）版本，该数据库可作为该区域鱼类仔鱼群落调查的数据存储库。