Objectives

Challenge 5 objectives have been divided in two main tasks:

  • construct fishery datasets of fish landings, discards and by-catch for assessing the quality, extracting the synergies and identifying the gaps of the fishery data collection systems in the Mediterranean Sea.
  • deliver maps showing the extent of the trawling fishing grounds for identifying the areas which are most disturbed by bottom trawling and the changes in level of disturbance over the past ten years and identifying the gaps of fishing vessels’ tracking systems in the Mediterranean Sea.

Methodology

For the first task the landing, discard and by-catch data are compiled using the information gathered in the framework of DCR/DCF, FAO-FishStat and ICCAT databases.

For the second task the impact of trawling on the sea bed is estimated using data recorded by Vessel Monitoring System (VMS), Automatic Identification System (AIS) and GPS logger data collected by the ESIF system (developed within EU project “Energy Saving In Fisheries” financed in the framework of the open call for tenders Fish/2006/17-LOT3). Biota-biology and seabed layers (seabed habitats and substrate) are considered to evaluate the impact on the bottom.

methodology_fisheries

Data Sources

The production of the targeted products are based on the following input characteristics:

  • Fish and shellfish catch statistics, Mass of landings of fish by species, country and year (excluding shellfish) from ICCAT Statistical Bulletin, DCR/DCF (European Commission) and FAO FishStat
  • Fish and shellfish catch statistics, Mass of discards of fish by species, country, year (excluding shellfish), DCR/DCF (European Commission)
  • Horizontal platform movement, Maps by France, Italy, Cyprus, Greece, Slovenia and Malta – VMS data from fishing vessels
  • Horizontal platform movement, AIS raw data from fishing vessels
  • Horizontal platform movement, GPS logger raw data from fishing vessels (ESIF system, CNR-ISMAR)
  • Map of seabed substrate (EMODnet- Geology portal)
  • Map of seabed habitats (MediSeh project)

Browse Data Source

Targeted Products

Name of Targeted product Short description Format
MEDSEA_CH5_Product_1 Collated data set of landings by species and year, for mass and number excel file
MEDSEA_CH5_Product_2 Collated data set of discards by species and year, for mass and number excel file
MEDSEA_CH5_Product_3 Collated data set of bycatch by species and year, for mass and number excel file
MEDSEA_CH5_Product_4 Impact of fisheries on the bottom from VMS data combined with seabed substrate and habitat vulnerability shapefile
MEDSEA_CH5_Product_5 Change level of disturbance from VMS data combined with seabed substrate and habitat vulnerability shapefile
MEDSEA_CH5_Product_6 Impact of fisheries on the bottom from AIS data combined with habitat vulnerability shapefile
MEDSEA_CH5_Product_7 Change level of disturbance from AIS data combined with seabed substrate and habitat vulnerability shapefile
MEDSEA_CH5_Product_8 Impact of fisheries on the bottom from Data Logger combined with seabed substrate and habitat vulnerability shapefile

 

Please contact back-end-medsea-ckpt@cls.fr for further information on products.

Team Involved

Gianna Fabi (CNR – ISMAR), Giuseppe Scarcella (CNR – ISMAR), Nora Tassetti (CNR – ISMAR), Carmen Ferrà Vega (CNR-ISMAR), Giulio Pellini (CNR – ISMAR), Antonello Sala (CNR – ISMAR), Emilio Notti (CNR – ISMAR), Fabrizio Moro (CNR – ISMAR), Jacopo Pulcinella (CNR – ISMAR)