Demersal Fish Community - spatial variation in size, species richness and diversity
What is it:
The three layers show the spatial variation of demersal fish (generally living on or near the seabed) in waters around Scotland (averaged over the period 1999 to 2008) for:
- Size Composition (Large Fish Indicator) (defined as the proportion of fish (by weight) in the community that is greater than 40 cm in length). The higher the value (varying between 0 and 1), the greater the proportion of large fish in the community.
- Species Richness (a count of the number of demersal fish species recorded in any survey sample).
- Species Diversity (indices that also take account of the relative abundance of each species in the sample).
Date of Data: 1999-2008.
Links to Scotland's Marine Atlas:
Data originators:
This information page is part of the theme:
![](https://marine.gov.scot/sites/default/files/styles/large/public/FishHouseScotia01.jpg?itok=E7j0l2-w)
Fish House Scotia - Copyright © Marine Scotland
Links and Resources
Type |
Link Title![]() |
External Link |
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Data Portals | DATRAS - Trawl Surveys | www.ices.dk |