Key Demersal fish density data and hotspots, Adriatic Sea
Data and Resources
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demersal_ensemble_density_adriaticCSV
Density of different fish species and their life stages (juveniles and...
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Demersal_getis_hotspot_adriaticCSV
Getis-Ord Gi statistic to identify hotspots of fish aggregation. It is...
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Demersal_multispecies_hotspot_adriaticCSV
Frequency analysis of hotspots across species, calculated based on the number...
Additional Info
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Original title | Identifying priority areas for spatial management of mixed fisheries using ensemble of multi-species distribution models. |
Original abstract | Spatial fisheries management is widely used to reduce overfishing, rebuild stocks, and protect biodiversity. However, the effectiveness and optimization of spatial measures depend on accurately identifying ecologically meaningful areas, which can be difficult in mixed fisheries. To apply a method generally to a range of target species, we developed an ensemble of species distribution models (e-SDM) that combines general additive models, generalized linear mixed models, random forest, and gradient-boosting machine methods in a training and testing protocol. The e-SDM was used to integrate density indices from two scientific bottom trawl surveys with the geopositional data, relevant oceanographic variables from the three-dimensional physical-biogeochemical operational model, and fishing effort from the vessel monitoring system. The determined best distributions for juveniles and adults are used to determine hot spots of aggregation based on single or multiple target species. We applied e-SDM to juvenile and adult stages of 10 marine demersal species representing 60% of the total demersal landings in the central areas of the Mediterranean Sea. Using the e-SDM results, hot spots of aggregation and grounds potentially more selective were identified for each species and for the target species group of otter trawl and beam trawl fisheries. The results confirm the ecological appropriateness of existing fishery restriction areas and support the identification of locations for new spatial management measures. |
Topic category |
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Sub category | Demersal fisheries |
Resource language | English |
Domain area |
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Owner | OGS |
Provider | OGS |
Data portal | Zenodo |
Presentation form | Table |
Spatial representation | Raster (grid) |
Coordinate reference system | epsg:4326 - WGS84 (degree) |
Web services | Other |
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Predecessor of | |
Temporal extent | 1999-01-01 |
2021-12-31 | |
Spatial extent | |
Data accessibility | Publicly accessible |
Validation level | Research |
Additional information | Key commercial demersal species analyzed are: European hake (Merluccius merluccius, Merlucciidae) Norway lobster (Nephrops norvegicus, Nephropidae) Red mullet (Mullus barbatus, Mullidae) Blackbellied angler fish (Lophius budegassa, Lophiidae) European horse mackerel (Trachurus trachurus, Carangidae) Shortfin squid (Illex coindetii, Ommastrephidae) Deep-water rose shrimp (Parapenaeus longirostris, Penaeidae) Common sole (Solea solea, Soleidae), mantis shrimp (Squilla mantis, Squillidae) Common cuttlefish (Sepia officinalis, Sepiidae) |
Metadata completeness | Complete |
Notes |
Additional info - MSP - Environment
Species, habitats, ecosystems, pressures
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MSFD Classes | Species - Fish |
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WFD |
Additional info - MSP - Oceanographic and CC
Physics, biochemistry, EOV, ECV
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Variables |
Additional info - MSP - Conservation
Protected areas, OECM, IBA, EBSA, CCH, IMMA, ...
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Zonation |
Additional info - MSP - Maritime activities
Aquaculture, fishing, transport, energy, ...
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Activity types | Professional fishing |
Additional info - MSP - Coastal & Land use and planning
Land use, land cover, planning (strategic, coordination, operational)
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Types |
Additional info - MSP - Socio-economic
Living and non-living resources, shipping, tourism, energy, ...
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Activity types | Fisheries and Aquaculture - Marine fishing - A0311 |
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Categories |
Additional info - MSP - Ecosystem Services
Provisioning, regulation & maintenance, cultural
Field | Value |
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CICES classes | Provisioning (Biotic) - 1.1.6.1 Wild animals (terrestrial and aquatic) used for nutritional purposes |
Additional info - MSP - Legal, Governance & Planning
Strategic, legislation, planning, administrative, enforcement
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Themes |
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Functions |
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Who is in charge? |
Additional info - MSP - Relevance
Relevance of the dataset / resource in supporting the MSP process at different spatial scales and temporal frames
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Relevance (spatial and temporal) |
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