Creel Fishing Effort Study - Average Number of Crab/Lobster Hauls Per Day and Average Number of Nephrop Hauls Per Day

Measuring fishing effort is important for assessing the environmental sustainability of fish stocks and the socioeconomic efficiency of fishing activity. Fishing effort describes the amount of fishing gear used on a fishing ground over a given unit of time. Effort in this case is defined as number of creels hauled per day per 4 km2. This survey interviewed 198 creel vessel skippers from four regions, two on the west and two on the east coast of Scotland. This analysis has been produced from these SAMPLED vessels only. This IS NOT a census and IS NOT a map of all creeling effort in these waters or in the survey areas. This is an indication of potential fishing effort only and if creeling is not quantified in an area in this map, that DOES NOT mean creeling is not taking place. Equally quantified effort could be higher given some creeling vessels were not surveyed. Fishing effort outside of the surveyed area was not measured.
 
Citation proposal
Marine Scotland (2017) . Creel Fishing Effort Study - Average Number of Crab/Lobster Hauls Per Day and Average Number of Nephrop Hauls Per Day. https://services.mspdata.eu:/geonetwork/srv/api/records/Marine_Scotland_FishDAC_1988

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Date ( Publication )
2017-09-15
Identifier
Marine_Scotland_FishDAC_1988

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Maintenance and update frequency
Not Planned Not Planned
Keywords
  • Marine Environmental Data and Information Network
BODC Parameter Discovery Vocabulary
  • Fish and shellfish catch statistics
GEMET - INSPIRE themes, version 1.0 ( Theme )
  • Species distribution
Access constraints
otherRestrictions Other restrictions
Other constraints
no limitations to public access
Use limitation
The following attribution statement must be used: Contains information from Scottish Government (Marine Scotland) licensed under the Open Government Licence v3.0.
Use limitation
Users should note the limitations of the dataset stated in the description.
Distance
2000  http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/uom/gmxUom.xml#m
Metadata language
eng English
Topic category
  • Economy
  • Oceans
N
S
E
W


Geographic identifier
There is no appropriate value

 

Date ( Revision )
2010-01-01

Reference system identifier
OGP / urn:ogc:def:crs:EPSG::3035
Distribution format
  • ()

OnLine resource
Creel Fishing Effort Study - average number of crab/lobster hauls per day  

Download the Creel Fishing Effort Study - average number of crab/lobster hauls per day as a zipped shapefile on WGS1984 datum

OnLine resource
Creel Fishing Effort Study - Average number of nephrop hauls per day  

Download Creel Fishing Effort Study - Average number of nephrop hauls per day as zipped shapefile on WGS 1984 datum

OnLine resource
creel_effort_avg_crab_lobster_hauls_per_day  

Creel Fishing Effort Study - Average number of crab/lobster hauls per day

OnLine resource
creel_effort_avg_nephrop_hauls_per_day  

Creel Fishing Effort Study - Average number of nephrop hauls per day

OnLine resource
creel_effort_avg_crab_lobster_hauls_per_day  
OnLine resource
creel_effort_avg_nephrop_hauls_per_day  
Hierarchy level
dataset Dataset
Statement

Creel fishing effort areas obtained from interviews and stakeholder workshops were recorded as spatial features, digitised into ArcGIS on WGS84 datum by interviewers. Spatial features recorded as a one to many relationship with each vessel having at least one effort area.

Values for effort were recorded alongside spatial areas in a spreadsheet by interviewers.

Spatial data were transformed to ETRS 1989 Lambert Azimuthal Equal Area and a 2km by 2km grid was plotted to cover the 4 sample regions. A count of cells per effort area was used to produce an average haul per grid cell for each area. This was then combined with overlapping data to produce a sum of average haul effort per cell (per day).

Metadata

File identifier
Marine_Scotland_FishDAC_1988   XML
Metadata language
eng English
Hierarchy level
dataset Dataset
Date stamp
2018-06-22
Metadata standard name
ISO 19115:2003/19139
Metadata standard version
1.0

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