nerc.ac.uk

Assessing the responses of aquatic macrophytes to the application of a lanthanum modified bentonite clay, at Loch Flemington, Scotland, UK

Gunn, Iain D.M.; Meis, Sebastian; Maberly, Stephen C.; Spears, Bryan M.. 2014 Assessing the responses of aquatic macrophytes to the application of a lanthanum modified bentonite clay, at Loch Flemington, Scotland, UK [in special issue: Plants in hydrosystems] Hydrobiologia, 737 (1). 309-320. 10.1007/s10750-013-1765-5

Before downloading, please read NORA policies.
[img]
Preview
Text
N504207PP.pdf - Accepted Version

Download (625kB) | Preview

Abstract/Summary

Loch Flemington is a shallow lake of international conservation and scientific importance. In recent decades, its status has declined as a result of eutrophication and the establishment of non-native invasive aquatic macrophytes. As previous research had identified the lake bed sediments as an important source of phosphorus (P), the P-capping material Phoslock® was applied to improve water quality. This article documents the responses of the aquatic macrophyte community by comparing data collected between 1988 and 2011. Summer water-column total P concentrations decreased significantly and water clarity increased following treatment. Aquatic plant colonisation depth increased and plant coverage of the lake bed extended. However, the submerged vegetation remained dominated by the non-native Elodea canadensis Michx. Aquatic macrophyte community metrics indicated no significant change in trophic status. Species richness and the number of ‘natural’ eutrophic characteristic species remained broadly similar with no records of rare species of conservation interest. Loch Flemington is still classified as being in ‘unfavourable no change’ condition based on its aquatic macrophytes despite the water quality improvements. The implications of these results are discussed in relation to the future management of Loch Flemington and in the wider context of trying to improve our understanding of lake restoration processes.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1007/s10750-013-1765-5
CEH Sections: Parr
Watt
ISSN: 0018-8158
Additional Keywords: eutrophication, Loch Flemington, lake restoration, P-capping material, aquatic macrophytes, lake management
NORA Subject Terms: Ecology and Environment
Botany
Date made live: 10 Dec 2013 14:59 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/504207

Actions (login required)

View Item View Item

Document Downloads

Downloads for past 30 days

Downloads per month over past year

More statistics for this item...