Resources

This method statement describes a system for assessing and classifying surface water bodies (rivers, lakes, transitional and coastal) based on the presence of high impact alien species.

Publication Date: 
17-July-2014
Advisory Group: 
UKTAG
This classification method encompasses fish abundance, taxonomic composition and age structure.  The tool relates the number of salmon and trout caught in a survey to the predicted abundance and prevalence of the species at the specific site.
Publication Date: 
16-July-2014
Advisory Group: 
UKTAG

Macrophytes provide habitats for fish and smaller animals; they bind sediments, protect banks, absorb nutrients and provide oxygenation. Macrophytes can indicate the impact of increased nutrients in lakes and are also influenced by other pressures such as water level change or acidification.

Publication Date: 
16-July-2014
Advisory Group: 
UKTAG

Estuarine fish communities are good indicators of a range of man-made disturbances. They are mobile, relatively long lived, found near to the top of the food chain (so are affected by other parts of the chain and prone to bioaccumulation effects) and are easy to identify and return to the water: all of these characteristics make them ideal for the monitoring of estuaries. This method is based on the principle that the abundance of fish and the number of individual species found can change depending on the pressures on the estuary.

Publication Date: 
14-July-2014
Advisory Group: 
UKTAG

Benthic invertebrate communities are good indicators of acidification which is caused by acidic pollution from precipitation and acids leaching from the surrounding soils. They are easily suited to biological monitoring as they are common, widespread and easily sampled.

Publication Date: 
10-July-2014
Advisory Group: 
UKTAG

This method statement describes how to determine the WFD class boundary values for the supporting element phosphorus in rivers. 

Publication Date: 
07-July-2014
Advisory Group: 
UKTAG

Groundwater dependent terrestrial ecosystems (GWDTE) are wetlands which critically depend on groundwater flows and /or chemistries.

Publication Date: 
07-July-2014
Advisory Group: 
UKTAG

This method statement covers a number of physical and biological indicators that could be used individually, or in combination, to help assess whether there is major or severe impact on river ecology due to altered flows arising from water resource activities.

Publication Date: 
03-July-2014
Advisory Group: 
UKTAG

Phytoplankton form the base of many food webs in lakes. This method uses the principle that an increase in nutrients (particularly phosphorus) leads to an increase in phytoplankton biomass and a change in the taxonomic composition, often leading to an increased occurrence of cyanobacteria (blue-green algae).

Publication Date: 
03-July-2014
Advisory Group: 
UKTAG
Macrophytes provide habitats for fish and smaller animals, they bind sediments, protect banks and absorb nutrients. Macrophytes can indicate the impact of increased nutrients in rivers and are also influenced by other pressures such as channel engineering, water abstraction, flow impoundment or acidification. The types and amount of macrophytes present in a river can tell us how well that river is working.  
 
Publication Date: 
02-July-2014
Advisory Group: 
UKTAG

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