c:/dev/skygeo/src/iso2stac/stac_output_dynamic/catalog.json
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c:/dev/skygeo/src/iso2stac/stac_output_dynamic/collection-institute_of_marine_research/collection.json
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c:/dev/skygeo/src/iso2stac/stac_output_dynamic/collection-institute_of_marine_research/54d5d2a3-edd0-4ce6-b68a-066635b542fb/54d5d2a3-edd0-4ce6-b68a-066635b542fb.json
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c:/dev/skygeo/src/iso2stac/stac_output_dynamic/collection-institute_of_marine_research/collection.json
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Collection of the material has been done with sledge by the Norwegian Institute of Marine Research (IMR) on the MAREANO surveys. The material is then fixed in ethanol and processed in laboratories on land. Results are entered in the database marbunn. Stated measurement values ​​are calculated based on the size of the sledge and any subsampling on board and on land.
geodataloven Norway Digital Felles datakatalog Natur Kyst og fiskeri Norwegian sea areas. MAREANO Biodiversity Individuals Biomass Sledge GrabbPrøver BomtrålPrøver SledePrøver redskap arterEnhet biomasseEnhet individerEnhet referanseStasjon toktNummer arter individer biomasseVekt bunndyp National biota
The data set shows points with analyzed physical samples from sledges. The data set shows species diversity (by the number of different species), individuals (aggregated sum of the number of individuals) and biomass (aggregated value of individual weight).
Sledge (hyperbenthic sledge) has a mesh size like the coarsest plankton nets (0.5 mm), and is designed to collect small crustaceans that live just above the bottom. In the MAREANO context, the beam trawl is usually towed along the bottom for 15 minutes. MAREANO processes the part of the samples that floats up when the sample is collected in a vessel with water (decanted fraction). The other part of the sample, that which sinks to the bottom of the vessel, is collected and processed further by other interested researchers. Only crustaceans from the decanted fraction of the sample are representative for quantitative calculations.
Mareano samples Sledge - species diversity, individuals and biomass