Marine macrobenthic assemblages off Bevano River mouth (2019)

This dataset provides the abundance (ind. m^-2) of marine macrobenthic invertebrate species at 39 random sampling points from 0.5 to 8 m depth along the coast (5 km) off the NATURA 2000 site IT4070009 "Ortazzo, Ortazzino e Foce del Torrente Bevano", sampled from 22 May to 4 July, 2019. Sediment grain size and organic matter are also provided. The dataset is provided in three formats: - Microsoft Excel XLSX file, including 3 sheets (Dataset, Fields and units, Taxonomy) - CSV files (UTF-8), 3 files corresponding to the 3 sheets of the Excel file - ESRI Shapefile (UTF-8, geometry point, EPSG:4326 - WGS 84) The dataset includes 39 records, one for each sampling point, and 111 fields. The first 12 fields are described in Table 4). The following fields concern the abundance of the identified taxa as individuals preserved in alcohol sorted and classified under microscope (ind. m^-2 ± 10). All the dataset fields are described in the file “Fields and units”, while the taxonomic related information for each taxon is provided in the file “Taxonomy”. Information extracted from the World Register of Marine Species (WoRMS; https://marinespecies.org/) is provided here. A total of 99 soft bottom taxa belonging to the Phyla Annelida (29), Arthropoda (28), Cnidaria (1), Echinodermata (2), Mollusca (37), Nemertea (1), and Phoronida (1) were identified. Of these, 51 have been recognized at species level. This dataset comes from the project "Characterization of the mouth area of the Bevano River and identification of strategies for the conservation and enhancement of nursery areas for protected species of commercial interest", carried out by the Interdepartmental Research Center for Environmental Sciences (CIRSA) of the Alma Mater Studiorum University of Bologna. The project was financed by the Emilia-Romagna Region (call FLAG Costa dell'Emilia-Romagna 2018) with funds from the European Union (FEAMP 2014/2020, Action 2.A.a, "Marine and lagoon habitats - Studies and research"), and took place from January to August 2019 (Abbiati et al., 2019 DOI: 10.5281/zenodo.4016598). This dataset has been revised and completed within the project "Ecosystem for Sustainable Transition in Emilia-Romagna" (Code: ECS_00000033 - CUP: B33D21019790006; Mission 04 Education and research - Component 2 From research to business Investment 1.5 - NextGenerationEU) . First 12 fields in the dataset. <strong>Field</strong> <strong>Darwin Core term</strong> <strong>Unit</strong> <strong>Precision</strong> <strong>Note</strong> locationID locationID NA NA Sampling location identifier (ID) specific to the data set samplingDate eventDate YYYY-MM-DD NA Conforms to ISO 8601-1:2019 samplingTime eventTime HH:MM ± 10 min Central European Summer Time CEST (UTC+2) conforms to ISO 8601-1:2019 decimalLatitude decimalLatitude decimal degrees ± 0.00001 WGS84 (EPSG: 4326) - WAAS/EGNOS enabled GPS position decimalLongitude decimalLongitude decimal degrees ± 0.00001 WGS84 (EPSG: 4326) - WAAS/EGNOS enabled GPS position Depth maximumDepthInMeters m ± 0.1 Mean Lower Low Water - measured with echosounder or depth gauge corrected by tide gauge of Porto Corsini (RA) SamplingGear NA NA NA Van Veen grab operated from boat or bailer manually operated by diver inside a cylindrical frame SamplingArea NA m^2 ± 0.001 Sampler size Mud NA % dry mass ± 0.1% &lt;63 µ wet sieved recovered on Whatman filter paper and then dried at 80°C for 24 hours before weighing at ± 0.00001 g FineSand NA % dry mass ± 0.1% 250-63 µ wet sieved recovered on Whatman filter paper and then dried at 80°C for 24 hours before weighing at ± 0.00001 g MediumSand NA % dry mass ± 0.1% &gt;250 µ wet sieved recovered on Whatman filter paper and then dried at 80°C for 24 hours before weighing at ± 0.00001 g OrganicMatter NA % dry mass ± 0.1% Loss on Ignition (LOI%) at 450°C 8h and weighted at ± 0.00001 g Actiniaria NA ind. m^-2 ± 10 Individuals preserved in alcohol sorted and classified under microscope本数据集提供了2019年5月22日至7月4日期间，在NATURA 2000保护地IT4070009「Ortazzo、Ortazzino与贝瓦诺河河口」沿岸5公里海域（水深0.5至8米）的39个随机采样点的海洋大型底栖无脊椎动物物种丰度（单位：个体·m⁻²）。数据集同步收录沉积物粒度与有机质含量数据。 本数据集以三种格式发布： - 微软Excel XLSX文件，内含3个工作表（分别为Dataset、Fields and units、Taxonomy） - 3个UTF-8编码的CSV文件，分别对应Excel文件的3个工作表 - ESRI Shapefile格式（UTF-8编码，点几何要素，EPSG:4326 - WGS 84坐标系） 本数据集共包含39条采样记录（对应每个独立采样点），总计111个字段（前12个字段详见表4）。后续字段均为经显微镜分拣、酒精固定保存的已鉴定类群的个体丰度（单位：个体·m⁻² ±10）。 所有数据集字段的详细说明均收录于「Fields and units」文件，各分类单元的分类学信息则收录于「Taxonomy」文件。本数据集引用了世界海洋物种登记册（World Register of Marine Species, WoRMS；https://marinespecies.org/）的公开数据。 本次研究共鉴定出99个软底栖类群，隶属于环节动物门（Annelida，29类群）、节肢动物门（Arthropoda，28类群）、刺胞动物门（Cnidaria，1类群）、棘皮动物门（Echinodermata，2类群）、软体动物门（Mollusca，37类群）、纽形动物门（Nemertea，1类群）以及帚虫动物门（Phoronida，1类群），其中51个类群可鉴定至物种水平。 本数据集源自 Alma Mater Studiorum——博洛尼亚大学环境科学跨学科研究中心（CIRSA）实施的「贝瓦诺河河口区域特征分析及保护、提升商业价值保护物种育苗场策略研究」项目。该项目由艾米利亚-罗马涅大区资助（资助项目为FLAG Costa dell'Emilia-Romagna 2018，资金来自欧盟2014/2020年结构与投资基金（FEAMP）行动2.A.a「海洋与泻湖栖息地研究」），实施周期为2019年1月至8月（Abbiati等，2019，DOI: 10.5281/zenodo.4016598）。 本数据集在「艾米利亚-罗马涅大区可持续转型生态系统」项目（编号：ECS_00000033 - CUP: B33D21019790006；任务04 教育与研究 - 组件2 从研究到商业投资1.5 - 下一代欧盟计划）框架下完成修订与完善。 ### 数据集前12个字段详情 | 字段名 | 达尔文核心（Darwin Core）术语 | 单位 | 精度要求 | 说明 | |----------------|-------------------------------|---------------------|------------------------|----------------------------------------------------------------------| | locationID | locationID | 无（NA） | 无（NA） | 数据集专属采样点位标识符 | | samplingDate | eventDate | YYYY-MM-DD | 无（NA） | 符合ISO 8601-1:2019标准 | | samplingTime | eventTime | HH:MM ±10分钟 | 无（NA） | 中欧夏令时（CEST，UTC+2），符合ISO 8601-1:2019标准 | | decimalLatitude| decimalLatitude | 十进制度 | ±0.00001 | WGS84（EPSG:4326）坐标系，采用支持WAAS/EGNOS的GPS定位获取 | | decimalLongitude| decimalLongitude | 十进制度 | ±0.00001 | WGS84（EPSG:4326）坐标系，采用支持WAAS/EGNOS的GPS定位获取 | | Depth | maximumDepthInMeters | 米（m） | ±0.1 | 平均最低低潮面水深，采用回声测深仪或测深仪测量，并经Porto Corsini（RA）潮位站校准 | | SamplingGear | 无（NA） | 无（NA） | 无（NA） | 采样设备：使用船只搭载的Van Veen采泥器（Van Veen grab），或潜水员在圆柱形框架内手动操作的采泥器 | | SamplingArea | 无（NA） | 平方米（m²） | ±0.001 | 采样器有效采样面积 | | Mud | 无（NA） | 干重百分比（%） | ±0.1% | 粒径<63μm的沉积物占比：经湿筛后收集于Whatman滤纸（Whatman filter paper）上，80℃烘干24小时后称重，称重精度±0.00001g | | FineSand | 无（NA） | 干重百分比（%） | ±0.1% | 粒径250-63μm的细砂占比：经湿筛后收集于Whatman滤纸（Whatman filter paper）上，80℃烘干24小时后称重，称重精度±0.00001g | | MediumSand | 无（NA） | 干重百分比（%） | ±0.1% | 粒径>250μm的中砂占比：经湿筛后收集于Whatman滤纸（Whatman filter paper）上，80℃烘干24小时后称重，称重精度±0.00001g | | OrganicMatter | 无（NA） | 干重百分比（%） | ±0.1% | 有机质占比：采用450℃灼烧8小时的烧失量法（LOI%）测定，称重精度±0.00001g | | Actiniaria | 无（NA） | 个体·m⁻² ±10 | 无（NA） | 经显微镜分拣、酒精固定保存的海葵目类群个体丰度