Changes in productivity and species composition of the coastal phytoplankton communities caused by dissolved substances of humic type.

Gedziorowska, D. and Plinski, M. (1988) Changes in productivity and species composition of the coastal phytoplankton communities caused by dissolved substances of humic type. Open Access Kieler Meeresforschungen - Sonderheft, 6 . pp. 256-264.

[thumbnail of Gedziorowska_D_1988.pdf]
Preview
Text
Gedziorowska_D_1988.pdf - Reprinted Version
Available under License Creative Commons: Attribution 3.0.

Download (735kB) | Preview

Abstract

Seawater samples for algal experiments and isolation of OHS (Dissolved Humic Substances) were taken in the Gdansk Bay during intense phytoplankton blooms. Bioassay experiments were conducted under controlled laboratory conditions with water containing natural phytoplankton communities. OHS was isolated from seawater by absorption on Amberlite XA0-2 according to the method of MANTOURA and RILEY (1975). It was found that the enrichment of the medium with OHS increased the production of chlorophyll a and cell numbers. OHS addition to the culture medium caused a change in the dominant species, especially in spring and summer phytoplankton. The results show that OHS influence not only the phytoplankton production but also the species succession by altering the species composition. The phenomenon of large phytoplankton blooms in coastal areas during the last decade should therefore be related (besides other physical, chemical and biological influences) to the presence of increasing concentrations of dissolved substances of the humic type.

Document Type: Article
Additional Information: Printausgabe in Bibliothek vorhanden - print edition available
Refereed: No
Open Access Journal?: Yes
Publisher: Institut für Meereskunde
Date Deposited: 30 May 2022 09:51
Last Modified: 30 May 2022 09:51
URI: https://oceanrep.geomar.de/id/eprint/56185

Actions (login required)

View Item View Item