Report on the Southern Ocean Continuous Plankton Recorder (SO-CPR) Standards Workshop 2016: SCAR SO-CPR Database Expert Group

2016年12月12−16日にオーストラリア南極局にて「南極研究科学委員会（以下SCAR）連続プランクトン採集器（以下CPR）データベース専門家グループワークショップ2016」を開催した．南大洋CPR観測プロジェクトを主導する日本，オーストラリア，ニュージーランドの実務担当者の間で，観測データの品質管理，種同定やデータ分析手法の再確認，および今後の活動についての詳細な討議を行った．前半はこれまでのプロジェクト活動を総括し，各国のマネージメントの状況を確認し，さらには将来的な観測計画を議論した．後半は動物プランクトンの種同定リストの更新のため，具体的な分類カテゴリーの種同定を実施した．特に有孔虫とオキアミ類の幼生期について，確認を行った．まとめられた種同定基準を用いて新たなマニュアル作成を開始することになった．今後，2年に一度を目途にプロジェクト参加国の技術者を集めたワークショップを開催し，各国間で統一された試料処理およびデータ管理を維持していくことを目指すこととなった．The“Southern Ocean Continuous Plankton Recorder (SO-CPR) Survey Standards Workshop”was held at the Australian Antarctic Division on 12−16December 2016. The purposes of the workshop were to confirm that consistent and high standards of species identification, methodology, and data quality were being maintained amongst the main analysts in the SO-CPR Survey, and to discuss future training methods, including a SO-CPR manual that will include a counting rule book, and a future road map for the SO-CPR program. During the workshop we discussed a range of topics including: taxonomic resolution issues (particularly for Foraminifera and euphausiid larval identification and staging); laboratory methods (preservation and storage, with emphasis on maintaining correct pH); shipboard techniques; training methods; data handling (metadata, database, data sharing); gap analysis (spatial, temporal, data, quantitative); and future workshops/conferences, including comprehensive training workshops for emerging SO-CPR survey partners (India). We agreed that there should be a larger workshop every two years to ensure that the high standards of the SO-CPR program are maintained

Report on the Southern Ocean Continuous Plankton Recorder (SO-CPR) Standards Workshop 2018: SCAR SO-CPR Database Expert Group

2018年11月20−23日にオーストラリア南極局にて「南極研究科学委員会，連続プランクトン採集器（以下CPR）データベース専門家グループワークショップ2018」を開催した．本ワークショップは2年に一度を目途に，南大洋CPR観測プロジェクト参加国の技術者を集め，各国間で統一された試料処理およびデータ管理を維持する目的で実施しており，今回は2016年に次ぐ開催であった．プロジェクトを主導する日本，オーストラリア，ニュージーランドの実務担当者の間で，動物プランクトンの種同定リストの更新，それに伴う具体的な分類カテゴリーの同定方法の確認を行った．特に亜南極域に出現するオキアミ類やカイアシ類について情報共有した．後半は観測データの品質管理，データ分析手法の再確認，また各国のマネージメントの状況を確認するとともに，今後の活動についての詳細な討議を行った．特に新規参入国へ向けた技術者育成ワークショップのための，分析手法マニュアル，および動物プランクトン種同定マニュアルの作成へ向けたロードマップを作製し，作業を開始することになった．The “Southern Ocean Continuous Plankton Recorder (SO-CPR) Survey Standards Workshop” was held at the Australian Antarctic Division on 20−23 November 2018. This biennial workshop was last held in 2016. The participants were technicians from the three nations (Japan, Australia, and New Zealand) leading the project. The purpose of the workshop was to ensure that high standards of data quality were being maintained, in terms of species identification and methodology, among the main analysts of the SO-CPR survey, and to discuss future training methods and a future roadmap for the SO-CPR program. A range of topics was discussed including: taxonomic resolution issues (particularly for northern species of copepods and euphausiids), laboratory methods (setting of the CPR cassette, microplastic counting rules), training methods (SO-CPR processing manual and zooplankton counting rule book), data handling for database input, and future standards workshops, including comprehensive training workshops for emerging SO-CPR survey partners. We discussed and agreed on a future roadmap for making a SO-CPR processing manual and zooplankton counting rule book, for the purposes of current and new technician training

Zooplankton distribution patterns in relation to the Antarctic Polar Front Zones Recorded by Continuous Plankton Recorder (CPR) during 1999/2000 Kaiyo Maru cruise

During the 8th Antarctic Expedition of the R/V Kaiyo Maru of the Japan Fisheries Agency, October 1999 to March 2000,a Continuous Plankton Recorder (CPR) was used to investigate zooplankton composition and abundance in the surface of the Indian sector of Southern Ocean between South Africa and Antarctica. Total zooplankton abundance ranged from 0 to 432 individuals/segment (a 5 nautical miles of the surface towing) (Mean±SD=69.7±83.5). Zooplankton abundance tended to be higher in the high latitudes than the Sub-Antarctic Front (SAF). Opposite correlations were observed between zooplankton and seawater temperature (negative), salinity (positive) and in vivo fluorescence value (positive) reflecting the higher abundance of zooplankton found in the cooler waters south of the SAF, which also have higher salinities and phytoplankton. Among twenty-nine species/taxa identified, cyclopoid copepod Oithona spp. were found throughout the transect, and accounted for 53.3% of total zooplankton abundance. Cluster analysis based on seventeen dominant zooplankton species/taxa revealed two groups and three ungrouped individual species/taxa at the 84% dissimilarity level. On the other hand, the cluster analysis based on the samples obtained in a 5 nautical miles indicated two major distinctive zooplankton community groups at 89% dissimilarity level. The main group included most segments in the Polar Frontal Zone (PFZ : region between SAF and the Polar Front) and Antarctic Zone (AZ : south of the Polar Front) with high zooplankton abundance while the second mainly group comprised lower latitude segment with low abundance (<100 individuals/segment)

Micro- and meso-zooplankton communities in the seasonal ice zone of the Southern Ocean

第6回極域科学シンポジウム[OB] 極域生物圏11月16日（月）　統計数理研究所 セミナー室1（D305

Report on the Status and Trends of Southern Ocean Zooplankton based on the SCAR Southern Ocean Continuous Plankton Recorder (SO-CPR) Survey

Zooplankton are a crucial link in the Antarctic marine ecosystem and changes in the zooplankton are likely to have substantial flow on effects through the rest of the food web. This report has collated the current knowledge of the status of zooplankton, e.g. what species are known, community structure, biogeography, based on the analysis of the SO-CPR dataset, and 69 publications in peer-reviewed research papers, chapters, atlases, and reviews. The report brings all that information together and highlights achievements over nearly 30 years, and includes some new analyses identifying trends (seasonal or long term) in relation to changes in abundance, shifts in distribution, and community composition. This report is a product of the Expert Group on CPR Research. It is hoped that this will be a living report that will include updated information as the SO-CPR datasets continues to grow and be analysed