Distribution of Clupeids larvae from CPR samples for period 4 (years 1978 to 1984) - Point data
Fish larvae were collected by the continuous plankton recorder (CPR, operated by SAHFOS) all year long between 1951 and 2005 along transects in the Celtic Sea and English Channel. The CPR is towed by ships of opportunity at speeds of 15 to 20 knots, at an approximate depth of 10 m. Water enters the recorder through an aperture of 1.27 cm2, and is filtered through a continuously moving band of silk with an average mesh size of 270 μm.
Simple
Identification info
- Date (Publication)
- 2012-07-24T00:00:00
- Citation identifier
- Distribution of Clupeids larvae from CPR samples for period 4 (years 1978 to 1984) - Point data
- Credit
-
CEFAS
- Credit
-
CHARM consortium
- Status
- Completed
- Point of contact
-
Organisation Individual Electronic mail address ORCID Role Cefas
Sophie Pitois
Resource provider
- Spatial representation type
- Vector
Spatial resolution
Equivalent scale
- Denominator
- 2500
- Topic category
-
- Oceans
- Biota
- Environment
Extent
- Geographic identifier
- Eastern English Channel
))
Extent
- Time period
- 1978-01-01T00:00:00 1984-12-31T00:00:00
- Maintenance and update frequency
- Unknown
- Discipline
-
-
Species data set
-
CHARM
-
Ichthyoplankton
-
Clupeidae
-
Resource constraints
- Use limitation
-
research-only
- Access constraints
- License
- Other constraints
-
Has to be cited this way in maps : "Source CHARM Consortium"
- Other constraints
-
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"
- Language
- Français
- Character encoding
- UTF8
- Language
- English
- Character encoding
- UTF8
- Environment description
-
Microsoft Windows XP ; ESRI ArcGIS 9.x
Distribution Information
- Distributor contact
-
Organisation Individual Electronic mail address ORCID Role Ifremer - Centre de Brest
Distributor
- Date
OnLine resource
- Protocol
-
FILE
- Name of the resource
-
t1
- Description
-
trimestre 1
OnLine resource
- Protocol
-
FILE
- Name of the resource
-
t2
- Description
-
trimestre 2
OnLine resource
- Protocol
-
FILE
- Name of the resource
-
t3
- Description
-
trimestre 3
OnLine resource
- Protocol
-
FILE
- Name of the resource
-
t4
- Description
-
trimestre 4
- OnLine resource
-
CHARMIII_CEFAS_Icthyoplankton_y4t1Clupeidae
trimestre 1
- OnLine resource
-
CHARMIII_CEFAS_Icthyoplankton_y4t2Clupeidae
trimestre 2
- OnLine resource
-
CHARMIII_CEFAS_Icthyoplankton_y4t3Clupeidae
trimestre 3
- OnLine resource
-
CHARMIII_CEFAS_Icthyoplankton_y4t4Clupeidae
trimestre 4
Resource lineage
- Lineage
-
In all, over 50 taxonomic groups of ichthyoplankton were identified, but we focused on the 6 most abundant groups of fish larvae, clupeids (Clupeidae), Atlantic mackerel (Scomber scombrus), rocklings, horse mackerel (Trachurus trachurus), whiting (Merlangius merlangus), and gadoids (Gadidae). These were the only taxonomic groups for which we had enough positive samplings points in order to produces maps of distribution.
The data are aggregated by 7 years periods (1: 1957 to 1963, 2: 1964 to 1970, 3: 1971 to 1977, 4: 1978 to 1984, 5: 1985 to 1991, 6: 1992 to 1998 and 7: 1999 to 2005) and by trimesters. The number of points by year/trimester periods is calculated. For each year/trimester period, the number of non-zero observation for each species/species group is also calculated. If this number is less than 10, the species/group species and period is plotted as a bubble plot. If it is more than 10, the sampling will be interpolated by kriging to have a presence map in the whole area
- Hierarchy level
- Dataset
Metadata
- Metadata identifier
- d17be096-7f87-46e8-bc73-e52e1e225a6d
- Language
- English
- Character encoding
- UTF8
- Contact
-
Organisation Individual Electronic mail address ORCID Role Ifremer
Erwann Quimbert
Point of contact
Type of resource
- Resource type
- Dataset
- Metadata linkage
-
https://sextant.ifremer.fr/geonetwork/srv/api/records/d17be096-7f87-46e8-bc73-e52e1e225a6d
- Date info (Creation)
- 2012-07-25T07:49:21Z
- Date info (Revision)
- 2025-05-16T00:14:33.406289Z
Metadata standard
- Title
-
ISO 19115-3 - SEXTANT
- Edition
-
1.0
accessData
Overviews
Spatial extent
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