Species and habitats - Limanda limanda (Common Dab) - Eggs - Abundance in January (IBTS survey 2007)
Biological data have been expressed in abundance (number of individuals per 20 m3).
Simple
- Title
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Species and habitats - Limanda limanda (Common Dab) - Eggs - Abundance in January (IBTS survey 2007)
- Alternate title
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IBTS_species_geostatA
- Date (Publication)
- 2009-12-31T00:00:00
- Citation identifier
- CHARM_LIMALIM_EGG_IBTS_R
- Presentation form
- Digital map
- Other citation details
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Source CHARM Consortium
- Abstract
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Biological data have been expressed in abundance (number of individuals per 20 m3).
- Credit
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IFREMER
- Credit
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CHARM consortium
- Status
- Completed
- Point of contact
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Organisation name Individual name Electronic mail address Role Ifremer
Yves Verin
Local service desk CHARM Consortium
CHARM Consortium
Production center
- Maintenance and update frequency
- As needed
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Thèmes Sextant
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/Biological Environment/Species/Fish Species of Commercial Interest
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- Discipline
-
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Species data set
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CHARM
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GEMET - INSPIRE themes, version 1.0
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Répartition des espèces
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external.theme.gemet
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ressource halieutique
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- Use limitation
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research-only
- Access constraints
- License
- Other legal constraints
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Has to be cited this way in maps : "Source CHARM Consortium"
- Other legal constraints
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Has to be cited this way in bibliography : "Carpentier A, Martin CS, Vaz S (Eds.), 2009. Channel Habitat Atlas for marine Resource Management, final report / Atlas des habitats des ressources marines de la Manche orientale, rapport final (CHARM phase II). INTERREG 3a Programme, IFREMER, Boulogne-sur-mer, France. 626 pp. & CD-rom"
- Spatial representation type
- Grid
- Denominator
- 10000
- Language
- English
- Language
- Français
- Character set
- UTF8
- Topic category
-
- Biota
- Oceans
- Environment
- Environment description
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Microsoft Windows XP ; ESRI ArcGIS 9.x
- Geographic identifier
- Dover strait and southern half of the North Sea
- Begin date
- 2007-01-01T16:09:00
- End date
- 2007-12-31T16:09:00
- Reference system identifier
- EPSG / WGS 84 (EPSG:4326) / 7.4
- Number of dimensions
- 2
- Dimension name
- Column
- Dimension size
- 334
- Resolution
- 0.009 degree,
- Dimension name
- Row
- Dimension size
- 314
- Resolution
- 0.009 degree,
- Cell geometry
- Area
- Transformation parameter availability
Distributor
- Distributor contact
-
Organisation name Individual name Electronic mail address Role Ifremer - Centre de Brest
Dissemination Unit
- Distributor format
-
Name Version
- OnLine resource
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Protocol Linkage Name OGC:WMS
https://sextant.ifremer.fr/services/wms/wms_charm CHARM_LIMALIM_EGG_IBTS_R
WWW:LINK
http://www.ifremer.fr/charm/ COPYFILE
CHARM_LIMALIM_EGG_IBTS_R
- Hierarchy level
- Dataset
- Statement
-
The survey concerns the Dover Strait to the southern half of the North Sea. Its aim is to estimate fish abundance and distribution and to compute recruitment indices (abundance of juveniles) for the fish species exploited in the North Sea. In parallel to its regular actions, the 2007 French IBTS used a continuous fish egg pumping device called CUFES allowing the collection of information on the spatial distribution of winter spawning areas and on the spawning habitat of several important species.
- Description
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Statistical analysis : the statistical distribution of environmental data were tested for normality (histograms, skewness, kurtosis). The data were transformed whem skewness value exceeded |1| and/or kurtosis exceeded 1 and if a normalising function that could improve the data distribution was found. Environmental variables were measured on scales based on analytical conventions that are unrelated to the natural processes generated them. Therefore, any transformed scale is as appropriate as those on which these data were originally recorded. Geostatistical interpolation : the spatial variation of environmental data were analysed using GENSTAT (GENSTAT 7 Committee, 2004), which is a GENeral STATistics package including the main geostatistical tools. It computes experimental variograms, fits these with various authorised mathematical models and uses them to calculate kriged estimates on a fine regular grid (of latitudes and longitudes). The grid of points was imported into ArcMap and interpolated with the Spatial Analyst extension in order to create a continuous raster of 1 km² resolution. The resulting maps illustrate the spatial distributions and the variations over time for environmental data studied in CHARM's area. For legends of maps, approximates od the 5th and the 95th quantiles were used for the minimales and maximales values respectively.
- Description
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IBTS survey, scientific survey of IFREMER
Metadata
- File identifier
- 4774ceb0-3289-11df-bae0-005056981ded
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2020-06-04T00:52:07
- Metadata standard name
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ISO 19115:2003/19139 - SEXTANT
- Metadata standard version
-
1.0
- Metadata author
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Organisation name Individual name Electronic mail address Role Ifremer
Fanny Lecuy
Local service desk