Transcript K_Macintosh
DOLMANT Development of ecological modelling tools for lake management Speakers: Dr Louise Vaughan & Dr Katrina Macintosh Project Leaders: Dr Yvonne McElarney & Prof Brian Rippey Presentation Overview • • • • • • DOLMANT project aims Programme of work Phytoplankton Zooplankton Future work Questions? DOLMANT Project Aims • Integrate biological, hydromorphological and physicochemical properties of lakes with catchment variables • Models will help evaluate the effectiveness of measures adopted in catchments • Support effective programmes of measures in line with the Water Framework Directive Plus other relevant measured variables..alk, cond, pH etc… Metrics e.g. % Cyanobacteria % Chlorophytes.. Lake TP Catchment nutrient loadings… Phytoplankton Status Lake TN Chla Macrophyte Status Temperature Ecological State Zooplankton Status Fish Status M’Invertebrate Status Programme of Work • Lough Neagh • Lower Lough Erne • 52 smaller lakes Phytoplankton Scolban Golagh Vearty Legane Lee Mourne Lough Neagh Phytoplankton Metrics • Chlorophyll a • Percentage Nuisance Cyanobacteria • Irish EPA Phytoplankton composition metric • Phytoplankton Trophic Index Zooplankton • • • • • Lough Neagh historic samples Two years; 2005 and 2011 were enumerated in detail. Describe seasonal patterns of density Establish changes between 2005 and 2011 Changes from 1970-1990 data Lough Neagh 2005 Taxa Cyclops spp Eudiaptomus gracilis Daphnia hyalina Daphnia longspina Daphnia pulex Naupulii Mysis relicta Leptodora kindtii Bythotrephes longimanus • • • • • Mean (nos L-1) 21.500 9.356 1.614 0.142 0.014 1.047 0.002 0.004 0.008 Median (nos L-1) 17.438 10.191 0.679 0.057 Found in one sample 0.793 Found in three samples Found in three samples Found in two samples Cyclops spp. most abundant, followed by Eudiaptomus gracilis D. hyalina found between July and October D. longispina found between March and May Bythotrephes longimanus found in July and August Leptodora kindtii from May to August Lough Neagh 2005 Cyclops Diaptomus gracilis Daphnia 90.0 Zooplankton (numbers per L) 80.0 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 1 2 3 4 5 6 7 Month 8 9 10 11 12 Lough Neagh 2011 Taxa Cyclops spp Eudiaptomus gracilis Daphnia hyalina Naupulii Mysis relicta Leptodora kindtii Bythotrephes longimanus • • • • • Mean (nos L-1) 41.789 9.208 1.137 1.771 0.003 0.0003 0.007 Median (nos L-1) 44.728 6.568 0.057 0.679 Found in two samples Found in two samples Found in three samples Cyclops spp. most abundant, followed by Eudiaptomus gracilis D. hyalina found between July and December D. longispina not found Bythotrephes longimanus found from July to September Leptodora kindtii in August and October Lough Neagh 2011 Cyclops Diaptomus gracilis Daphnia 90.0 Zooplankton (numbers per L) 80.0 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 1 2 3 4 5 6 7 Month 8 9 10 11 12 Lough Neagh 1969 - 2011 Cyclops Diaptomus gracilis Daphnia 60.0 Zooplankton nos (nos per L) 50.0 40.0 30.0 20.0 10.0 0.0 1965 1970 1975 1980 1985 1990 1995 2000 2005 2010 2015 Future Work • Continue enumeration of historic samples from Lough Neagh and Lough Erne • Commence fieldwork on 52 small lakes • Model causal relations between lake variables using structural equation modeling (SEM) / path analysis • Develop practical management tools to assist agencies achieve ecological targets for lakes Project Partners • Agri-Food and Biosciences Institute (AFBI) • University of Ulster (UU) • Trinity College Dublin (TCD) • Inland Fisheries Ireland (IFI) • Environmental Protection Agency (EPA) • Northern Ireland Environment Agency (NIEA) Acknowledgements • • • • • • • Chris Gibson Tony Fitzsimons Bob Foy Colm McKenna Kirsty McConnell Phil Dinsmore Louise Davis • • • • • • • • • Hannah Cromie Kevin Gallagher Eugene O’Kane Elaine Hamill Glaucia Hamilton Eugene McDonnell Chris Barry Project partners AFBI staff Questions? Contact details: Dr Katrina Macintosh Email: [email protected] Dr Louise Vaughan Email: [email protected]