Document of dataset 8083

Dataset record

Type
Dataset
title in English
Romanian Black Sea Phytoplankton data from 1991 to 2000
Description in English
The sampling was carried out from standard depths with Niskin bottles. From each depth was collected a sample of 500 ml. The standard sedimentation technique for samples preparation (Morozova-Vodianitkaia, 1954) was used. The scientific team identified and counted the phytoplankton species from a subsample with an inverted microscope and calculated the total abundance and biomass. This dataset was compiled from a historical collection of phytoplankton datasheets and contains abundance (cells per liter) and biomass (mg/m3) data for individual phytoplankton taxa. For each record, the sampling transects, station number, coordinates of the sampling station, sampling depth and sample collection date were recorded. Samples were collected from standard depths with Niskin bottles. From each depth was collected a sample of 500 ml. The samples were preserved with 14 ml of buffered 4% formaldehyde solution. Study Extent Current dataset extends from 1991 to 2000, from January to November, without a similar annual frequency. The samples were collected from 13 transects that included 82 sampling stations in the Black Sea, covering coastal, shelf and offshore Romanian waters. Quality Control Data in the Romanian Black Sea phytoplankton dataset were collected by experienced scientists. The data entry was done by a scientific team. The introduced data were checked by another scientist and the input errors were corrected, following the phytoplankton datasheets. Method step description: This dataset was compiled from a historical collection of phytoplankton datasheets. These data sheets were used as a protocol for phytoplankton sampling and analysis. They provided information about the metadata (sampling transect, station number, coordinates of the sampling station, sampling depth, sample collection date, name of the researcher who processed the sample, name of the expedition, etc.); the equations used to calculate the abundance of phytoplankton species; and data (identified species, cells counted in the subsample, total abundance, and total biomass). Samples were concentrated by sedimentation and surface water removal to increase the phytoplankton density in the sample by following the standard sedimentation technique for samples preparation (Morozova-Vodianitkaia, 1954). After the volume of the concentrated sample was measured, a subsample of 0.1 ml was taken from the concentrated sample, poured into the counting chamber, and analysed under an inverted microscope, in order to identify and count all the phytoplankton species. Phytoplankton abundance per litre was calculated by the following equation: N = V1/V2 x n x 2, where N is the number of cells per litre of water, V1 is the volume of the concentrated sample, V2 is the volume of subsample, and n is the number of cells counted in a subsample (Morozova-Vodianitkaia, 1948; Bodeanu, 1987 - 1988). The phytoplankton biomass was determined based on morphometric measurement of phytoplankton units. The biomass of phytoplankton per cubic metre of water was calculated by multiplying the abundance with the average wet weight of the species, following the average weights tables elaborated by Morozova-Vodnițkaia (1948; 1954) and Pițîk (1950), modified and updated by Bodeanu N. and Ruță G. (1995).
Abstract in English
Phytoplankton data collected in the Black Sea between 1991 and 2000 and processed by Nicolae Bodeanu, Mioara Ușurelu, Georgeta Ruță, and Laura Boicenco. Data were collected from coastal to offshore Romanian waters from various transects such as Sulina, Mila 9, Portita, and Sf. Gheorghe (northern zone) to Constanta and Mangalia (southern zone).
License
https://spdx.org/licenses/CC-BY-NC-4.0.html
bibliographicCitation
Boicenco, Laura; Pantea, Elena; Vlas, Oana; National Institute for Marine Research and Development "Grigore Antipa" (NIMRD), Romania; (2022): Romanian Black Sea Phytoplankton data from 1991 to 2000

Temporal coverage

Temporal
Start date
1991-1-1
End date
2000-1-1

Geographical coverage

Spatial
Romanian part of the Black Sea

Themes

theme
Biology > Plankton > Phytoplankton

Taxonomic terms

Taxon keywords
Bacillariophyceae
Chlorophyceae
Chrysophyceae
Cryptophyceae
Cyanophyceae
Dinophyceae
Euglenoidea
Prymnesiophyceae

Ownerships

creator
Elena Pantea
creator
National Institute for Marine Research and Development "Grigore Antipa" Constanta
contactPoint
Elena Pantea
contactPoint
National Institute for Marine Research and Development "Grigore Antipa" Constanta
contactPoint
Laura Boicenco
contactPoint
National Institute for Marine Research and Development "Grigore Antipa" Constanta
contributor
Elena Pantea
contributor
National Institute for Marine Research and Development "Grigore Antipa" Constanta

Dataset references

record
European Ocean Biodiversity Information System

Special collections

part of special collection
available through EurOBIS
EMODNET

Document metadata

date created
2022-07-19
date modified
2022-07-19