ATLANTIC_CH07_Product_1 / Area where bottom habitat has been disturbed by bottom trawling (number of disturbances per month)
Data from a number of different sources have been integrated to provide new perspectives on fishing activities. Vessel Monitoring Systems (VMS) record and transmit the position and speed of fishing vessels at intervals of two hours or less. Fishing time can be calculated from the VMS data and combining this parameter with vessel logbook data, maps of fishing effort and intensity at different spatial and temporal scales can be calculated. The statistical software package “R” is used to extract the required information then re-interrogated to produce maps of fishing effort or intensity per month and year. The use of Automatic Identification System (AIS) data was not considered as combining AIS data with fisheries logbook data would pose issues namely; the ability of the AIS system to be switched off, only mandatory on vessels > 15 meters in length, cost involved to purchase data, and confidentiality.
Simple
Identification info
- Date (Creation)
- 2018-02-23
- Citation identifier
- DOI:10.12770/212c67d3-1a29-48ce-bd1c-e11ed03c32a4
- Issue identification
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Not Applicable
- Purpose
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To produce map layers showing the extent of the fisheries impact on the sea floor per month
- Point of contact
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Organisation Individual Electronic mail address ORCID Role Marine Institute
Point of contact EMODnet Atlantic Checkpoint
Publisher Marine Institute
Author
- Spatial representation type
- Vector
- Topic category
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- Oceans
Extent
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Extent
- Time period
- 2009 2016
Vertical element
- Minimum value
- 0
- Maximum value
- 1000
- 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
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- Validation
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Approved
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Resource constraints
- Use constraints
- Other restrictions
- Other constraints
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Restricted - This EMODnet Atlantic Checkpoint data product (the “Product”) is the result of a “challenge” stress test specified by the call for tenders No MARE/2012/11. The challenge partners ( "the producer") were commissioned to perform a number of tests to evaluate marine data according to set user requirements. This product and any resultant data and metadata produced is a consequence of these tests and provided for interest only. The Product is provided on an “as is” basis, and the producer disclaims any and all warranties, conditions, or representations (express, implied, oral or written), relating to the Product or any part thereof, including, without limitation, any and all implied warranties of quality, performance, suitability or fitness for a particular purpose to the full extent permitted by law. The Producer and the Atlantic Checkpoint partners accept no liability for loss suffered or incurred as a result of reliance on the Product or any output of its use. The Producer shall not be liable for any economic loss, loss of profit, loss of business or contract, depletion of goodwill or otherwise, in each case whether direct, or indirect or any indirect loss whatsoever (howsoever caused) including loss or damage suffered as a result of an action brought by any person which arise out of or in connection with the use of the Product or inability to use the Product
Resource constraints
- Use limitation
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Limited: The product fails in most aspects to meet the objectives but meet some.
- Use limitation
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A comprehensive evaluation of fishing effort in the Atlantic Ocean (FAO Fishing Areas 21, 27, 31 and 34) could not be fully achieved, primarily due to data sensitivity and restriction policies surrounding the use of VMS and fishing log book data. A partial assessment of FAO Area 27 (Atlantic Northeast) was possible as access to UK and Estonia fishing effort data was granted. Estonian data related to fishing effort in the Mediterranean and was discarded. However fishing effort is underestimated as UK data accounts for a fraction of the total fishing activity present in this area. Further assessment of FAO fishing areas 21, 31, and 34 (Atlantic Northwest, Atlantic Western Central, and Atlantic Eastern Central) could not be concluded due to a lack of VMS and Log book data. Global fisheries capture statistical data relating to areas 21, 31 and 34 suggest that foreign flag vessels from the EU, Russian Federation, Japan and the Ukraine actively engage in fishing activities. It is impossible to determine if these vessels are engaged in bottom trawling as access to logbooks containing gear type used could not be obtained. The overarching opinion is sensitivity and restrictive policies surrounding VMS and Log book data need to be reviewed. An accurate assessment of the impact caused by bottom trawling cannot be achieved when access to appropriate data remains restricted.
Associated resource
- Association Type
- Cross reference
- Initiative Type
- specification
Associated resource
- Association Type
- Cross reference
- Initiative Type
- upstreamData
Associated resource
- Association Type
- Cross reference
- Initiative Type
- upstreamData
Associated resource
- Association Type
- Cross reference
- Initiative Type
- upstreamData
- 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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DOI of the product
DOI of the product
- OnLine resource
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CH07_product_01
Product visualization
- OnLine resource
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Download product
Download product
ATLANTIC_CH07_Product_1 / Area where bottom habitat has been disturbed by bottom trawling (number of disturbances per month) - Fishing Effort (Vessels >15m) from VMS/Logbook data to map activity of bottom fishing (towed gears) in NE Atlantic
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- Begin date
- 2009
- End date
- 2016After
Vertical element
- Minimum value
- 0
- Maximum value
- 1000
ATLANTIC_CH07_Product_1 / Area where bottom habitat has been disturbed by bottom trawling (number of disturbances per month) - Area of West African Continent ending at the NE Atlantic extent at the equator
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Component is not covered because data does not exist
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This component was created to outline non EU areas present in the Atlantic, but due to fishing effort data availability and so forth; a product covering these areas cannot be created. Data extracted (CECAF (Eastern Central Atlantic) Capture Production (online query) from the Food and Agricultural Organization of the United Nations (FAO) Fisheries and Aquaculture Departments, regarding capture fisheries in the region show various EU flag states, Norwegian and the Russian Federation actively fishing is this region. The usability of this capture quantity data is unrestricted, however visibility of VMS or Logbook data with which to form a high resolution fishing effort analysis of the region is not available.
- Begin date
- 1950
- End date
- 2016After
Vertical element
- Minimum value
- 0
- Maximum value
- 1000
ATLANTIC_CH07_Product_1 / Area where bottom habitat has been disturbed by bottom trawling (number of disturbances per month) - Area covering the Americas from Canada through the US and central America ending at the NE Atlantic extent at the equator.
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Component is not covered because data does not exist
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This component was created to outline non EU areas present in the Atlantic, but due to fishing effort data availability and so forth; a product covering these areas cannot be created. Data extracted using Global Capture Production (online query) statistics from the Food and Agricultural Organization of the United Nations (FAO) Fisheries and Aquaculture Departments, in the region show various EU flag states, Norwegian, the Russian Federation, Faroe Islands, Greenland, Iceland, Japan, and the Ukraine actively fishing is this region. The usability of this capture quantity data is unrestricted, however availability of VMS or Logbook data to form a high resolution fishing effort analysis of the region is not available.
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- Begin date
- 2006
- End date
- 2016After
Vertical element
- Minimum value
- 0
- Maximum value
- 1000
Reference System Information
- Reference system identifier
- http://www.opengis.net/def/crs/EPSG/0/4326
Metadata
- Metadata identifier
- urn:uuid/212c67d3-1a29-48ce-bd1c-e11ed03c32a4
- 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
- Metadata linkage
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http://localhost:8080/geonetwork/srv/eng//metadata/47dea01f-5b6a-48d7-990a-606a6001cbef
- Date info (Revision)
- 2025-01-28T08:38:09.250739Z
- Date info (Creation)
- 2005-03-31T19:13:30
Metadata standard
- Title
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ISO 19115-3 - Emodnet Checkpoint - Targeted Data Product
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