Shoreline algal wash as a factor in reed decline in Lake Constance-Untersee

Ostendorp, Wolfgang

Shoreline algal wash as a factor in reed decline in Lake Constance-Untersee

Files

Ostendorp_Shoreline_algal_wash.pdf(311.16 KB)

Date

1992

Publication type

Journal article

Published in

Hydrobiologia ; 242 (1992), 3. - pp. 165-174. - ISSN 0018-8158. - eISSN 1573-5117

Abstract

This paper assesses the chemical and mechanical impact of algal wash (Cladophora, Spirogyra, Chara) upon the lakeside reed belt (Phragmites australis) using field mapping methods, bioassays with Scenedesmus acutus in batch culture, and field experiments. Heavy mats of filamentous algae are correlated with a reduction in number of the outermost reed stalks. The water pressed from decaying heaps of Cladophora and Spirogyra reduced the growth rate of Sceredesmus significantly, but mats from Chara did not. It is assumed that the toxic substance is an organic compound. In field experiments the detrimental effect could not be clearly evidenced. The reasons for this are discussed. It is concluded that mechanical impact is of major importance.

Subject (DDC)

570 Biosciences, Biology

Keywords

Phragmites,Cladophora,Lake Constance,algal wash,reed decline

Cite This

ISO 690

OSTENDORP, Wolfgang, 1992. Shoreline algal wash as a factor in reed decline in Lake Constance-Untersee. In: Hydrobiologia. 242(3), pp. 165-174. ISSN 0018-8158. eISSN 1573-5117. Available under: doi: 10.1007/BF00019965

BibTex

@article{Ostendorp1992Shore-7555,
  year={1992},
  doi={10.1007/BF00019965},
  title={Shoreline algal wash as a factor in reed decline in Lake Constance-Untersee},
  number={3},
  volume={242},
  issn={0018-8158},
  journal={Hydrobiologia},
  pages={165--174},
  author={Ostendorp, Wolfgang}
}

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