Cambridge Environmental Assessments, ADAS Boxworth, Cambridgeshire, CB23 4NN
Dr Nadine Taylor
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Outdoor freshwater static mesocosm systems.
Our GLP facility consists of 199 mesocosms, including 99 flat bottomed ponds and 100 unique sloped mesocosms. Our sloped mesocosms were installed in 2013, and are approximately 2.6 m long, 1 m wide and 0.7 m deep. The sloped mesocosms are designed for herbicide testing, enabling the incorporation of a wide variety of plant species, providing a habitat which mimics the plant community found in edge of field environments thereby enhancing ecological relevance. We can provide specialist guidance on which macrophytes to plant and tailor it to your specific needs.
Our flat bottomed mesocosms were installed in 2009, are approximately 1.8 m long, 0.9 m wide and 0.8 m deep and are predominantly used in insecticide studies. They can be tailored to your requirements with our Ecotoxicologists for guidance.
Indoor laboratories.
We have a GLP laboratory facility in which we can carry out higher tier chronic testing on multiple and single species under controlled conditions. We specialise in aquatic invertebrates, zooplankton, and algae, with in house taxonomic expertise for species identification.
- Outdoor mesocosms: Plant community, water depth, test item present, initial organism establishment
- Indoor laboratories: Environmental parameters (including temperature, pH, oxygen and light/dark cycles), species present, sediment/substrates, feeding regimes
At CEA we produce robust population and community endpoints (ETO RAC and ERO RAC) that meet the requirements of the EFSA (2013) aquatic guidance. We conduct mesocosm studies on both herbicide and pesticide products and can carry out the application of our test item in several ways (e.g. mix-in, spray-over) and perform single or multiple applications as required.
Chemical risk assessment, primarily determining regulatory endpoints for various agrochemicals
- Higher tier freshwater aquatic testing to Good Laboratory Practice (GLP) standards.
- Bespoke experimental design
- Identification of freshwater phytoplankton, periphyton, macrophytes, zooplankton, macroinvertebrates and emergent insects
- Statistical analysis of data generated to current guideline requirements
- Indoor laboratories for acute and chronic higher tier testing
- Probes for monitoring temperature, pH, conductivity, chlorophyll (including cyanobacteria), dissolved oxygen and turbidity
- Sampling equipment to collect zooplankton and phytoplankton
- Sediment and floating traps for macroinvertebrates as well as sweep nets
- Periphytometers to allow the periphyton community to be sampled quantitatively
- Surface water mesh sampling
- Emergent insect traps
- Sediment sampling apparatus
- Depth integrated water samplers (DIWS)
- High accuracy scales for formulation of test item
- Bioassay cages and bags to house organisms within our mesocosms
- GLP storage facilities
Local hotels available near to the site.
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sloped mesocosm dimensions