Monitored sites in the Catlins River catchment
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The Catlins has a variety of features which make it unique to the eastern coast of the South Island. It is rugged, remote and endowed with large tracts of native rainforest (500km2). It has abundant wildlife, is sparsely populated and is very scenic and unspoilt.
The Catlins River catchment has 40% indigenous forest in its catchment, with approximately the same percentage as high producing grassland. On high producing exotic grassland, sheep and beef grazing represents the majority of recorded land use in the catchment, with dairy, deer and forestry being less common forms of agriculture. The Owaka catchment has 20% indigenous forest much of the remaining area is high producing grassland supporting dairy, sheep and beef.
The Catlins River has a good population of resident brown trout between 1-2 kg and in their lower reaches sea-run brown trout which can reach 3-4kg. Although brown trout are the most common species of fish in the catchment, sensitive native species are also present, these include the Redfin bully ,Gollum galaxias, Longfin Eel and Lamprey.
The Owaka and Catlins Rivers are used extensively for whitebaiting between August and November, with inanga, koaro and banded kokopu all contributing to the whitebait catch.
The most significant active recreational pursuit carried out on the Catlins River is angling The Catlins River supports a diverse ecosystem, with 13 species of fish and one species of freshwater crayfish listed as being present in the catchment (NIWA freshwater fish database).
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This dashboard shows information on the data collected by the regional councils for water quality indicators, analysed as
The state for the catchment is represented by theconcentration for the across all sites within the catchment and then compares that value to the for all monitored sites in New Zealand.
Click on the parameters state icons to compare this catchment with others in the region.
State shows how theof samples from this site compares to other sites
Trend shows how the quality of water is changing over time. Depending on the sampling history duration, five and ten year timescales are available:
The Cawthron Institute has worked alongside regional councils to verify the processes and methods used for data collection, laboratory analysis of samples collected and the statistical analysis and interpretation of the results presented.
If all Cawthron ticks are green, then you can trust this data. However, if one or more ticks are orange, then conclusions should be treated with some caution.
For more details on each tick, see our 'Can I Trust This Data?' Factsheet.
All samples were collected using approved field protocols and have been analysed in accredited laboratories. Therefore the data shown here has been collected and analysed following best practice.
All samples were collected using approved field protocols and have been analysed in accredited laboratories.
This data is not flow adjusted. National guidelines suggest that flow-sensitive variables are flow 'adjusted' before trend analysis. Therefore, any trends shown here may be affected by variations in flow across sampling occasions.
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