PIKE – Distribution, extinctions and introductions of freshwater fish in Sweden

Dataset type

This dataset that contains event based data for species which may include sampling information

Description

The PIKE database are assembled by Göran Englund and co-workers at the Department of Ecology and Environmental Science at Umeå University. It contains information on presence of fish species, as well as introductions of new species, extinctions and rotenone treatments. Most data has been collected by governmental agencies and individuals who have shared their knowledge and data sets. The information derives from field surveys, interviews and inquires. A few hundred lakes have been surveyed within the project to obtain complementary data. Most of the occurrence data have been collected in the period 1890-2012. PIKE also includes information on water chemistry, lake depth, lake area,and much more. Most of the lakes are found in Sweden, but Norway and Finland are also represented.

Geographic Description

Primarily Sweden. A smaller number of records from Finland and Norway

Data quality

The reliability of each record were rated where

1 = "low reliabilility", often second information given in interviews

2 = "reliable", typically interviews with local fishers or managers

3 = "high reliability", often gill net records and interviews with particularly well-informed persons.

Methods

-Data mapping

samplingEffort: One fishing effort is one net/wired cage*one night, one detonation or

casting/electrical fishing with one set of equipment for one hour. Mapped from PIKE:Fishing effort

Type of content

Includes: Point occurrence data.

Citation

No citation information available.

Rights

This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License.

Digitised records

Metadata last updated on 2024-09-23 07:18:38.0