Document of dataset 4580

Dataset record

Type
Dataset
DOI
https://www.doi.org/10.14284/142
title in English
Concentrations of phytoplankton, chlorophyll, POC, dry weight measurements and abiotic data in the surface water of Gazi creek (Kenya) sampled in August 1989
Description in English
During the month of August 1989, three 24 cycli were conducted in the Gazi creek, Kenya. Every 4 hours, seston samples (10L of surface water) were taken at the banks of the creek. The samples were analysed for chlorophyl, POC, dry weight and phytoplankton concentrations. The samples for primary production were in-situ incubated. It was generally observed that the litoral-benthic phytoplankton species were dominant in the phytoplankton composition. The pelagic diatoms and the freshwater species Scenedesmus sp. were continuously present in an almost constant low concentration. The concentration in chlorofyl a, POC, dry weight and phytoplankton decreased with increasing water levels. At the sampling location, the ratio chlorophyl a/dry weight and the comparison between chlorophyll a - primary production and phytoplankton concentration demonstrated a limited interaction at the contact area between the creek and the mangroves.
Abstract in English
Data on concentrations of chlorophyll, phytoplankton, POC and dry weight measurements during three 24h-cycli at Gazi Creek in August 1989. Additionally tide, temperature, salinity and pH were measured. The data were digitized by VLIZ from the original report: Aernaudts, H. (1990). Seston in mangrove ecosysteem (Gazi, Kenia) = Seston in a mangrove ecosystem (Gazi, Kenya). MSc Thesis. VUB: Brussel. 52 pp.
License
https://spdx.org/licenses/CC-BY-4.0.html
bibliographicCitation
Aernaudts H.; Tackx M.; Laboratorium voor Ecologie en Systematiek; Faculteit Wetenschappen. VUB: Belgium; (2016): Concentrations of phytoplankton, chlorophyll, POC, dry weight measurements and abiotic data in the surface water of Gazi creek (Kenya) sampled in August 1989. (http://www.vliz.be/en/imis?module=dataset&dasid=4580)
Release date
Feb 27 2017 12:00AM

Temporal coverage

Temporal
Start date
1989-08-08
End date
1989-08-25
Accrual periodicity
Weekly

Geographical coverage

Spatial

Thesaurus terms

Keyword
Benthic diatoms
Bio-geographical regions
Biota
Diatoms
Environment
fresh water phytoplankton
Geoscientific Information
Habitats and biotopes
Mangroves
Metadata non conformant
Metadata not evaluated
No limitations to public access
Oceans
Primary production
Sea regions
Seston
WGS84 (EPSG:4326)
XYZ ASCII

Themes

theme
Biology > Pigments (e.g. chlorophyll)
Biology > Plankton > Phytoplankton
Biology > Productivity - biomass

Taxonomic terms

Taxon keywords
Actinoptychus C. G. Ehrenberg, 1841
Amphora
Bacillaria J.F. Gmelin, 1791
Bacillariophyceae
Biddulphia S. F. Gray, 1821
Chaetoceros
Cyclotella (Kütz.) de Brébisson, 1838
Diatoma Bory
Diploneis Ehrenberg ex Cleve
Licmophora C.A. Agardh, 1827
Melosira C.A. Agardh, 1824
Navicula J.B.M. Bory de Saint-Vincent, 1822
Nitzschia Hassalt
Pleurosigma
Rhaphoneis Ehrenberg
Rhizosolenia Brightwell, 1858
Scenedesmus Meyen, 1829
Tabellaria Ehrenberg ex Kützing

Ownerships

contactPoint
Vlaams Instituut voor de Zee
contributor
Vlaams Instituut voor de Zee
creator
Hilde Aernaudts
creator
Laboratorium voor Ecologie en Systematiek
creator
Micky Tackx
creator
Laboratorium voor Ecologie en Systematiek
contributor
Micky Tackx
contributor
Laboratorium voor Ecologie en Systematiek
creator
Laboratorium voor Ecologie en Systematiek

Publication references

related reference
Based on this dataset /id/publication/223954

Dataset references

is part of
Historical Kenyan-Belgian research datasets (1873-1999)
record
European Ocean Biodiversity Information System

Special collections

part of special collection
available through EurOBIS
EMODNET
VLIZ-KMFRI collaboration in marine sciences

Document metadata

date created
2014-04-22
date modified
2025-03-26