Name of measuring program:
Beam Trawl Survey (BTS) – südliche Nordsee (Dänemark, Holland, Deutschland)
ID of measuring program:
ANSDE_MP_103
Marine waters (seas):
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indicators (2014):
  • 3.1.1 Abundanz/ Biomasse ausgewählter Arten
  • 3.1.2 Verbreitungsgebiete und -muster ausgewählter Arten
  • 8.1.1 Laicherbiomasse (SSB)
  • 8.1.2 Biomasse-Indizes/Fang pro Aufwandseinheit (CPUE – Catch Per Unit Effort) (Surveys)
  • 8.2.1 Anteil von Fischen oberhalb der Durchschnittsgröße bei Eintritt der Geschlechtsreife (% mat – percent mature)
  • 8.2.2 95% Perzentil der bei Fischereiforschungsfahrten (Surveys) beobachteten Längenverteilung (L95)
  • 8.2.3 Durchschnittslänge der größten N Individuen pro Jahr, wobei N 5% der gemittelten gefangenen Gesamtstückzahl pro Jahr entspricht (Lmax5%)
Monitoring programmes (former sub) (north sea):
  • Mobile species (fishes) - abundance and/or biomass
  • Mobile species (fishes) - population characteristics
Monitoring programmes (former sub) (baltic sea):
Temporal scope start:
1991-01-01
Temporal scope end:
Description monitoring period:
Spatial scope:
  • EEZ (or similar, e.g. Contiguous Zone, Fishing Zone, Ecological Protection Zone)
  • Beyond MS Marine Waters
  • Territorial waters
  • Coastal waters (WFD)
Description spatial scope:

Das BTS wird durch eine Arbeitsgruppe des ICES (WGBEAM) international koordiniert und findet u.a. in der Nordsee statt.

Purpose:
  • Environmental state and impacts
Description of purpose:
Specifications:
  • Fish (8)
  • Kommerziell genutzte Fisch- und Schalentierbestände (48)
Responsible institution:
  • TI
Involved institution:
Elements monitored:

alle gefangenen Fischarten

Link to parameters:
  • MP-9b-1-1-1 - Species distributional range/pattern
  • MP-9b-1-3-1 - Size of individuals (length or weight)
  • MP-9b-1-3-2 - Sex
  • MP-9b-1-3-3 - Age at maturity
  • MP-9b-1-3-5 - Life history stage (e.g. egg, juvenile, adult)
  • MP-9b-1-3-6 - Reproduction rate
  • MP-9b-1-2-1 - Population size (abundance)
  • MP-9b-1-2-2 - Population size (biomass)
  • MP-9b-1-8-1 - Species present (whole community or selected species only)
  • MP-9b-1-8-2 - Species abundance (numbers or cover)
  • MP-9b-1-8-3 - Species abundance (biomass)
  • MP-9b-1-7-1 - Temperature
  • MP-9b-1-7-2 - Salinity
  • MP-9b-1-7-6 - Concentration of oxygen
  • MP-9b-1-7-7 - Transparency / turbidity of water column
  • MP-9b-1-7-11 - Bathymetric depth
Parameters measured:
table of method url:
ICES Datras https://datras.ices.dk/Documents/Manuals/WGBEAM_Manual.pdf
Description sampling method:
Quality Assurance:
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description quality assurance:

TI-interne Qualitätskontrolle, welche den Standards anderer Fischereisurveys entspricht, z.B. IBTS.

Quality Control:
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description quality control:
Spatial resolution (density) of sampling:
60
Description Spatial resolution (density) of sampling:

Beprobung der südlichen Nordsee, mindestens zwei Hols pro ICES Rectangle. Es fehlen die Gebiete der nördlichen Nordsee.

number of samples per year:
0
addendum number of samples per year:

Ca. 640 Hols pro Jahr insgesamt, ca. 60 Hols pro Jahr durch Deutschland

frequency:
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Description frequency or rather cycle or count per year:
periodicity of sampling:
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Description subprogramm details:
data aggregation scale:
  • Subregion
description data aggregation scale:
Access to data - Data type:
  • Processed data sets
  • has to be resolved with AG Daten / DIKE !!
Access to data - mechanism:
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Access to data - Rights:
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Access to data - INSPIRE standard:
  • Environmental monitoring facilities
Access to data - Date of reporting:
Access to data - Data updated frequency:
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Description data frequency:
Link to parameters:
Access to data - Description:
change: