Dataset 856

Freshwater fish surveys (NFPD) (Kick Netting Single Catch)

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Realm: Freshwater
Climate: Temperate
Biome: Multiple
Central latitude: 51.233138
Central longitude: 0.391251
Duration: 6 years, from 2012 to 2018

27 records

8 distinct species

Across the time series Rutilus rutilus is the most frequently occurring species

Methods

The National Fish Populations Database (NFPD) holds information collected from fisheries monitoring work on rivers, lakes and transitional and coastal waters (TraC). This monitoring work is undertaken by the Environment Agency and by third parties. All the relevant data associated with NFPD freshwater fish surveys, such as survey information, site information, the numbers and species of fish caught, fish lengths, weights and ages (where available), can be obtained from these relational datasets. The data is provided as a set of relational data tables because there is just too much data to include all relevant information in all tables. A basic understanding of fisheries science and relational databases is assumed. Available datasets/tables: • Freshwater Fish Counts for all species for all Areas and all Years • Freshwater Salmonid Age Band (0+, >0+, age unknown) Counts for all Areas and Years • Freshwater Salmonid Age Band (0+, 1+, >1+, age unknown) Counts for all Areas and Years • Breakdown of freshwater fish count data types (individually measured, banded measured and bulk counted fish) • Individually measured freshwater fish records • Banded measured freshwater fish records • Bulk counted freshwater fish records The tables can be related to each other using any one of the unique identifiers - surveyid, surveyspeciesid, speciesid and speciesrunid. However, the Freshwater Fish Counts and the Salmonid Age Band datasets have no dependence on the other tables and can therefore also be used in isolation. Third party data and surveys not flagged as Completed are excluded. For more information about the available datasets/tables, please see the Dataset Documentation. Attribution statement: © Environment Agency copyright and/or database right 2017. All rights reserved.” [Extracted from https://www.data.gov.uk/dataset/d129b21c-9e59-4913-91d2-82faef1862dd/nfpd-freshwater-fish-survey-relational-datasets] NOTES BioTIME Curator: the original dataset, Freshwater Fish Counts, was split into subsets each with a unique consistent methodology. In each resulting dataset, the survey methods and survey strategy are consistent across sites. The same site might appear across resulting datasets if the location was monitored with different methodologies. Grain size is the average area sampled across the sites in each resulting dataset (in m2). When the resulting study includes data from one sampling site only, study area = grain size in km2. Abundance units are always densities: n ind/100m2. This data subset contains records monitored with: kick nets and a single catch sampling strategy.

Citation(s)

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