IMIS | Flanders Marine Institute
 

Flanders Marine Institute

Platform for marine research

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Printer-friendly version

Spatial distribution of suspended particulate matter (SPM) in Mtwapa Creek and Funzi Bay - Kenya
Mutua, A.K. (2000). Spatial distribution of suspended particulate matter (SPM) in Mtwapa Creek and Funzi Bay - Kenya. MSc Thesis. VUB: Brussel. 69 pp.

Thesis info:

Available in  Author | Dataset 
  • VLIZ: Archive VLIZ ARCHIVE A.THES26 [17492]
  • VLIZ: Non-open access 228412
Document type: Dissertation

Keywords
    Nutrients (mineral); Particulate organic carbon; Phytoplankton; Sewage disposal; Marine; Brackish water
Author keywords
    ECOMAMA

Author  Top | Dataset 

Abstract
    Surface water concentrations of inorganic nutrients and suspended particulate matter (SPM) components were examined and compared between Mtwapa and Shirazi creeks in Kenya. This was aimed at assessing the ecological situation of the two creeks and determine the influence of sewage discharge. The results obtained were further compared with those from Ramisi, an estuarine system. Mtwapa recorded higher nutrient, chlorophyll a and phytoplankton carbon concentrations than Shirazi. The two creeks also recorded different phytoplankton stocks and groups. Dinoflagellates dominated Mtwapa in the stations within the vicinity of sewage discharge points whereas Shirazi was dominated by pennate and centric diatoms, though at lower concentrations. Shirazi recorded the highest particulate organic carbon (POC) / phytoplankton carbon ratio. The Ramisi estuarine stations were characterised by high concentrations of dry weight (DW), centric diatoms, phytoplankton carbon, detritus and POC. Cluster analysis revealed three main clusters; the first cluster of pure estuarine stations, a second cluster comprised of stations from Mtwapa and Shirazi and a third cluster of two Mtwapa stations which were located within the vicinity of sewage discharge points. A PCA sites scatter plot produced similar clusters. A PCA species-sites biplot showed that stations in the first cluster were characterised by high concentrations of phytoplankton carbon, centric diatoms, DW, POC and detritus, 'species' which were highly correlated with axis 2; stations in the second cluster were characterised by high concentrations of POC / phytoplankton carbon ratio whereas stations in the third cluster were characterised by high concentrations of dinoflagellates, a 'species' which was highly correlated with axis 1. The three systems however had detritus as the main POC component contributing above 60% of the total POC.

Dataset
  • Spatial distribution of suspended particulate matter (SPM), inorganic nutrients, chlorophyll a and particulate organic carbon (POC) in Mwtapa, Shirazi and Ramisi creeks (Kenya) sampled between August and October 1999, more

All data in IMIS is subject to the VLIZ privacy policy Top | Author | Dataset