Extraction of fish - Herring extraction (landings) (HOLAS 2)
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Dataset information
Catalog
Country of origin
Updated
Created
Available languages
English
Keywords
MADS, HOLAS2
Datasource
Quality scoring
195
Dataset description
The extraction of herring data set is based on:
1. http://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/a3b67a55-7c1e-469e-b692-58c4e7b79279 for years 2011-2016 reported per ICES statistical rectangles (tonnes / ICES rectangle).
Landing values were redistributed within each ICES rectangle by the c-square fishing effort data provided by ICES (all gears, 2011-2013). Tonnes / km² was calculated and the results were converted to 1 km x 1 km grid cells. The layer was log-transformed and normalised to produce the final pressure layer on extraction of herring.
Please see "lineage" section below for further details on attributes, data source, data processing, etc.
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