|Aquatic Surveying and Environmental Data Analyses|
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Aquatic surveysFreshwater ecological surveys are undertaken, for example for conservation assessment, to monitor or identify a discharge or impact, assess damage or recovery, or to assess flow requirements or nutrient enrichment. Biological water quality is assessed as defined by macroinvertebrate, riparian and in-channel macrophyte communities. Surveys support environmental statements and ecological impact assessments of aquatic habitats.
Ponds and canals are surveyed using National Pond Survey or PSYM methodology; and assessed using UK BAP Priority Pond Criteria. Streams and rivers are surveyed using Environment Agency RIVPACS protocol where appropriate. The Chironomid Pupal Exuvial Technique or CPET may be used to assess the quality of lakes (or any other type of waterbody). Quantitative,experimentation and biomanipulation techniques may be utilised where required.
Taxonomy and biotic indices
Protected species and special groups
Larval and pupal Chironomidae surveys may be undertaken; with identification either specific or generic.