Toggle Main Menu Toggle Search

Open Access padlockePrints

Validation of ecological status concepts in UK rivers using historic diatom samples

Lookup NU author(s): Dr Martyn Kelly, Professor Steve Juggins, Roger Guthrie

Downloads

Full text for this publication is not currently held within this repository. Alternative links are provided below where available.


Abstract

We assessed the feasibility of using herbarium specimens to validate reference conditions in the UK by comparing diatom community composition of river sites with both recent and historic diatom samples. The question of substrate specificity was addressed by comparing epilithon (stone-derived) and epiphyton (plant-derived) samples from a number of rivers. No significant differences were found between the Trophic Diatom Index (TDI), species richness, species diversity, and percentage of motile valves between paired diatom samples (epilithic and epiphytic) from contemporary samples. Significant differences were recorded between a number of indices derived from analysis of the historic diatom samples on plant material sampled pre-1930 compared with diatoms from stones collected post-1990 from the same river location. The TDI, mean species richness, and species diversity and percentage of motile valves and nutrient tolerant valves were all significantly greater in the contemporary samples (p


Publication metadata

Author(s): Yallop M, Hirst H, Kelly M, Juggins S, Jamieson J, Guthrie R

Publication type: Article

Publication status: Published

Journal: Aquatic Botany

Year: 2009

Volume: 90

Issue: 4

Pages: 289-295

ISSN (print): 0304-3770

ISSN (electronic):

Publisher: Elsevier BV

URL: http://dx.doi.org/10.1016/j.aquabot.2008.11.005

DOI: 10.1016/j.aquabot.2008.11.005


Altmetrics

Altmetrics provided by Altmetric


Actions

Find at Newcastle University icon    Link to this publication


Share