Continous Plankton Recorder phytoplankton occurrence data from SAHFOS in the North Atlantic Ocean from 1946-2014 (CPR Plankton Survey project)
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<p>This dataset includes phytoplankton found in CPR tows from 1946 to 2014. These are occurrence data, not abundances.</p> <p>Click on the 'Get Data' button above to view some of the data or drill down into any selection by species.<br /> The entire, unsorted data file may be download [522 MB]. See the data files section.</p> <p>Over the last 81years, the CPR analysis team has analyzed more than a quarter of a million samples from over 6.5 million miles of tows in the North Sea, Norwegian Sea, North and South Atlantic, North Pacific, and Indian Oceans. In 2015 (to mid-December), approx. 124,600 nautical miles were sampled with over 4000 samples for analysis. Samples were taken in the North Atlantic and North Sea, Pacific, and Southern Ocean. </p> <p>SAHFOS can supply some descriptive data at little cost (usually free).</p> <p>Spatial and temporal data are stored at SAHFOS for every sample analysed by the CPR survey, since 1946. This amounts to almost 170,000 samples, with around 200 more samples added per month. The presence of every planktonic entity identified on each sample is stored in the database, and there are almost 2 million plankton records in total. The database also contains supportive information such as tow locations, times and dates, ship details, a taxon catalogue and analyst details.</p> <p>Over 400 zooplankton and phytoplankton entities have been identified on CPR samples, and the 'abundance' of each entity on each sample can be extracted from the database. Some plankton are identified to species level, some to genus level, and some at a higher taxonomic level. Some entities are groups of other entities. The complete Species List is kept in the database.</p> <p>Data can be extracted from user defined areas, over specified periods, for selected entities [from the SAHFOS site]. For example, all samples taken from the Dogger Bank area in the North Sea during March, April, and May since 1946 could be extracted from the database, and the 'abundance' of selected diatom species on each sample could be listed. Alternatively, an average value, number of samples, and standard deviation per year per month, could be retrieved. The data can be exported to statistical and presentation packages in many popular formats such as text, rich text, comma separated, MS Excel, MS Access, MS Word, Fox Pro, Dbase, Lotus and to SQL compliant databases. SAHFOS can supply some descriptive data at little cost (usually free).</p> <p>If you would like to know more about CPR coverage of a particular location, contact the Data Manager - Darren Stevens or David Johnsat SAHFOS.</p> <p>For information about methods and parameters, and link to SAHFOS' data page: <a href=\"https://www.cprsurvey.org/data/our-data/\">https://www.cprsurvey.org/data/our-data/</a></p>
本数据集涵盖1946年至2014年间通过连续浮游生物采样器（Continuous Plankton Recorder，CPR）拖网采集的浮游植物（phytoplankton）数据。本数据集收录的为物种出现（occurrence）数据，而非种群丰度（abundance）数据。 点击上方的「获取数据」按钮即可查看部分数据集，或按物种筛选并深入查看相关内容。<br/>完整未排序数据集文件大小为522 MB，可于数据文件板块下载。 过去81年间，CPR分析团队已对北海、挪威海、南北大西洋、北太平洋及印度洋海域超过650万英里拖网采集的25万余份样本完成分析。截至2015年12月中旬，当年累计完成约124600海里的采样作业，采集超4000份样本用于分析，采样区域覆盖北大西洋、北海、太平洋及南大洋。 阿尔斯特·哈迪海洋科学基金会（Sir Alister Hardy Foundation for Ocean Science，SAHFOS）可提供部分描述性数据，仅收取极低成本（通常免费）。 自1946年起，CPR调查的所有分析样本的时空数据均存储于SAHFOS数据库中，累计样本量近17万份，且每月新增约200份样本。每份样本中鉴定出的所有浮游生物类群的出现记录均已入库，总浮游生物记录量近200万条。该数据库还包含配套辅助信息，如拖网采样位置、采样时间与日期、作业船舶详情、类群分类目录及分析人员信息。 CPR采样样本中已鉴定出400余种浮游动物（zooplankton）与浮游植物（phytoplankton）类群，数据库可提取每份样本中各类群的丰度（abundance）数据。部分浮游生物可鉴定至物种水平，部分仅能鉴定至属水平，另有部分仅能鉴定至更高分类阶元。部分类群为其他类群的集合类。数据库中存储有完整的物种名录。 用户可根据自定义区域、指定时段及筛选类群从数据库中提取数据[数据来源：SAHFOS官网]。例如，可提取1946年以来每年3-5月北海多格滩海域的所有采样样本，并列出每份样本中选定硅藻（diatom）物种的丰度；亦可获取各年月均丰度、样本量及标准差等统计数据。数据集可导出为多种通用格式，用于统计分析与演示制作，包括纯文本、富文本、逗号分隔格式、Microsoft Excel、Microsoft Access、Microsoft Word、FoxPro、Dbase、Lotus及兼容SQL的数据库格式。SAHFOS可提供部分描述性数据，仅收取极低成本（通常免费）。 若需了解某一特定海域的CPR采样覆盖范围详情，请联系SAHFOS的数据管理员Darren Stevens或David John。 如需了解调查方法与参数详情，可访问SAHFOS数据集页面：<a href="https://www.cprsurvey.org/data/our-data/">https://www.cprsurvey.org/data/our-data/</a>
