Data were collected in 2003 within the framework of the Ukrainian national monitoring program. Mesozooplankton samples were obtained using a vertical Juday plankton net with a 0.1 m² mouth opening and a mesh size of 150 μm. Vertical hauls were performed from 2 m above the seabed or from the lower boundary of the oxic layer to the surface, depending on local conditions. The sampling depth was determined by accounting for both the length and the angle of the towing wire. Samples were fixed with 4% formaldehyde buffered to pH 8.0–8.2 using disodium tetraborate (borax; Na₂B₄O₇·10H₂O) and stored in plastic containers. Prior to analysis, the material was concentrated to 100–150 cm³ and divided into sub-samples. Quantitative (abundance and biomass based on species-specific individual weights) and qualitative (taxonomic composition) analyses were carried out in a Bogorov chamber under a stereoscopic zoom microscope. At least 100 individuals of each of the three dominant species were counted per sub-sample. According to Alexandrov et al. (2014), the abundance estimates for these groups have an accuracy of approximately 20%. Taxonomic identification followed Morduhay-Boltovskoy (1968, 1969, 1972).
此資源sampling event的資料已發佈為達爾文核心集檔案（DwC-A），其以一或多組資料表構成分享生物多樣性資料的標準格式。
核心資料表包含 73 筆紀錄。
亦存在 2 筆延伸集的資料表。延伸集中的紀錄補充核心集中紀錄的額外資訊。 每個延伸集資料表中資料筆數顯示如下。
ExtendedMeasurementOrFact
1846
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研究者應依照以下指示引用此資源。:
Ukrainian Scientific Centre of Ecology of the Sea (UkrSCES)
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此資料的發布者及權利單位為 Ukrainian Scientific Centre of Ecology of the Sea (UkrSCES)。
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North-western part of the Black Sea
| 界定座標範圍 |
緯度南界 經度西界 [46.012, 30.081], 緯度北界 經度東界 [46.755, 32.168] |
無相關描述
| 計畫名稱 |
National Monitoring Studies 2003 |
參與計畫的人員: