Dataset 5996

Dataset record

Type: Dataset
title in English: Phytoplankton abundance and biomass data from 2007 to 2016 in the Bulgarian Black Sea
Description in English: Phytoplankton samples were collected by CTD probe (SBE-911) with attached Niskin bottles at discrete depths, defined according to the in situ fluorimeter readings (0m - thermocline- deep chlorophyll a maximum), and 1m above the bottom or down to 75 m depth at the deeper stations. Phytoplankton samples (1000 ml water sample) were fixed on board in 4% formaldehyde solution, buffered to pH 8-8.2 with disodiumtetraborate. In the laboratory the samples are concentrated down to 50 cm3 by slow decantation after storage for at least 20 days in a cool and dark place. Taxonomic identification and cell counts are done under inverted microscope (Nikon T300E) connected to a video-interactive image analysis system ((L.U.C.I.A, Version 4.8, Laboratory Imaging Ltd, Prague) at 400x magnification by the Uteröhl (1958) method in Sedgwick-Rafter counting chambers. 400 cells are counted from each sample, while rare and large species are checked in the whole counting chamber (Moncheva and Parr, 2005/2015). The individual cell biovolume (V, μm3) is derived through the approximation of the cell shape of each species to the most similar regular solid, calculated by the respective formulas (Edier , 1979 ; Vadrucci et al., 2007), averaged over measurement of ten cells from each species. Cell bio-volume is converted to weight (W, ng) following Hatchinson (1967). Taxonomic nomenclature is according to the on-line data-base of World Register of Marine Species (WoRMS) http://www.marinespecies.org/ and the Black Sea phytoplankton check-list. The QC/QA of the data is performed following the quality control Guidelines for phytoplankton (Moncheva, 2010).
Abstract in English: Phytoplankton data, species composition, abundance (cells/l) (SDN:P01: PU00M00Z) and biomass (mg/m3) (SDN:P01: WWBMM00Z) collected at coastal stations located in the 1n.m. Bulgarian Black Sea area and stations on a coastal-open sea transect in the Bulgarian Black Sea region, including the EEZ, within EC, FP7 Project SESAME.
License: https://spdx.org/licenses/CC-BY-NC-SA-4.0.html
bibliographicCitation: Snejana Moncheva; Institute of Oceanology, Bulgarian Academy of Sciences (IO-BAS); (2019): Phytoplankton abundance and biomass data from 2007 to 2016 in the Bulgarian Black Sea
Release date: Sep 11 2019 12:00AM

Temporal coverage

Temporal

Start date: 2007-10-04
End date: 2007-10-08

Start date: 2008-04-14
End date: 2008-04-21

Start date: 2008-06-01
End date: 2008-06-15

Start date: 2008-09-29
End date: 2008-10-04

Start date: 2009-06-05
End date: 2009-06-12

Start date: 2011-04-30
End date: 2011-05-07

Start date: 2011-09-09
End date: 2011-09-15

Start date: 2012-05-14
End date: 2012-05-20

Start date: 2012-06-07
End date: 2012-06-12

Start date: 2012-07-18
End date: 2012-07-27

Start date: 2012-07-14
End date: 2012-07-18

Start date: 2012-08-14
End date: 2012-08-20

Start date: 2012-09-29
End date: 2012-10-04

Start date: 2012-11-05
End date: 2012-11-10

Start date: 2013-06-20
End date: 2013-06-30

Start date: 2013-08-23
End date: 2013-08-28

Start date: 2014-05-27
End date: 2014-06-04

Start date: 2014-06-18
End date: 2014-06-21

Start date: 2014-09-08
End date: 2014-09-17

Start date: 2015-08-28
End date: 2015-08-31

Start date: 2015-10-01
End date: 2015-10-06

Start date: 2015-11-12
End date: 2015-11-16

Start date: 2016-04-29
End date: 2016-05-04

Start date: 2016-05-26
End date: 2016-05-30

Start date: 2016-07-18
End date: 2016-07-23

Start date: 2016-08-19
End date: 2016-08-24

Start date: 2016-09-16
End date: 2016-09-21

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