ATLANTIC_CH07_Specification_2 / Damage to seafloor to both living and non-living components
The impact of fishing on benthic habitats has previously been investigated however; a conclusive classification of potentially sensitive habitats per gear type does not exist. Currently only qualitative estimates of fishery impact using Broad-scale habitat maps are possible. Here a sensitivity matrix using both fishing pressure (fishing Intensity) and habitat sensitivity is employed to define habitat disturbance categories. The predominant fishing activities associated with physical abrasion of the seafloor area are from bottom contacting towed fishing gear. The swept area of the aforementioned gear in contact with the seabed is generally considered a function of gear width, vessel speed and fishing effort (ICES. 2015). The varying characteristics of fishing gear, their interaction with the sea floor and species being targeted; provide scope for differing interactions with subsurface (infaunal) and surface (epifaunal) dwelling communities. An evaluation of the abrasion pressure and habitat sensitivity split into surface and subsurface pressure allows greater insight to the ecological effects. Fishing intensity was calculated annually and based on the area of sea floor being swept (or swept area ratio SAR) by gear type. Calculations are based on SAR’s of gear types per area, per year. Fishing pressure ranks and habitat sensitivity ranks obtained from WGSFD working group (01 WGSFD - Report of the Working Group on Spatial Fisheries Data 2015) can be incorporated within a GIS environment to existing ICES fisheries data to provide habitat disturbance maps (fishing pressure maps+ habitat sensitivity maps)
ICES. 2015. Report of the Working Group on Spatial Fisheries Data (WGSFD), 8–12
June 2015, ICES Headquarters, Copenhagen, Denmark. ICES CM 2015/SSGEPI:18. 150
pp.
Simple
Identification info
- Date (Creation)
- 2017-04-05
- Date (Revision)
- 2018-01-09
- Issue identification
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Not Applicable
- Purpose
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Production of map layers showing the extent of the fisheries impact on the sea floor, To evidence the fitness for use of the current available marine datasets, as well as to point out gaps in the current Emodnet Data Collection Framework.
- Point of contact
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Organisation Individual Electronic mail address ORCID Role Marine Institute
Point of contact
- Spatial representation type
- Vector
- Topic category
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- Oceans
Extent
Extent
- Time period
- 2006 2016
Vertical element
- Minimum value
- 0
- Maximum value
- 1000
- Validation
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Approved
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- Used by challenges
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Atlantic - CH07 - Fisheries Impact
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- Processing level of characteristics
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High level analyzed
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- Production mode
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Delayed
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- GEMET - INSPIRE themes, version 1.0
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-
Sea regions
-
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distribution format
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ESRI Shapefile
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- OnLine resource
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Publication Reports : Data outputs
Data linked to ICES Publication reports
- OnLine resource
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EMODnet Spatial Data Downloads
Main habitat data products available for download
- Benthic habitat spatial extent with sensitivity matrix assigned to distribution of seabed habitats in EU waters
- Begin date
- 2006
- End date
- 2016
Vertical element
- Minimum value
- 0
- Maximum value
- 1000
- Fishing Intensity from bottom contacting towed fishing gear to map activity in the NE Atlantic
- Begin date
- 2006
- End date
- 2016
Vertical element
- Minimum value
- 0
- Maximum value
- 1000
- Area of West African Continent ending at the NE Atlantic extent at the equator
- Begin date
- 2006
- End date
- 2016
Vertical element
- Minimum value
- 0
- Maximum value
- 1000
- Area covering the Americas from Canada through the US and central America ending at the NE Atlantic extent at the equator.
- Begin date
- 2006
- End date
- 2016
Vertical element
- Minimum value
- 0
- Maximum value
- 1000
Metadata
- Metadata identifier
- urn:uuid/17df73dd-72bd-44a4-b910-b73dc2983076
- Language
- English
- Character encoding
- UTF8
Type of resource
- Resource type
- Dataset
- Metadata linkage
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http://localhost:8080/geonetwork/srv/eng//metadata/286d8887-58a5-4562-a0b9-a69b78fced76
- Date info (Revision)
- 2018-05-29T13:00:08Z
- Date info (Creation)
- 2005-03-31T19:13:30
Metadata standard
- Title
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ISO 19115-3 - Emodnet Checkpoint - Data Product Specification