Use this URL to cite or link to this record in EThOS:
Title: Assessing the early maturation of a newly-created waterbody designed to attract birds : a study at WWT Llanelli
Author: Blackmore, D. S. A.
Awarding Body: University of Wales Swansea
Current Institution: Swansea University
Date of Award: 2005
Availability of Full Text:
Access from EThOS:
There is a perceived need to recreate wetland habitats in the UK and to encourage the organisms associated with them. This has been done largely on the basis of trial and error approaches. An attempt was made to assess whether detailed monitoring of a newly-created site could make the whole process more scientific. Consequently, the Deep Water Lake in the Millennium Wetland of the Wildfowl and Wetlands Trust Llanelli was monitored monthly from its creation in June 1998 until June 2001 at 10 sites. Water quality factors (including pH, Biological Oxygen Demand, turbidity as well as concentrations of various ions) and sweep net records of macro-invertebrates and fish were carried out. The impacts on biotic measures of the introduction of 4000 roach in June 2000 were also assessed. An attempt was made to assess the impact of the changes in this location to its utilisation by a variety of bird and other species. Although Lake colonisation by some organisms occurred rapidly, the process was not completed within the three year study period. Nevertheless, both numbers and diversity of principal organisms increased steadily with each year of study. Seasonal peaks in some water quality factors were associated with decay of the algal bloom and correlated with numbers of certain organisms. The introduction of fish had no measurable effect on invertebrate populations and their development.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available