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Published September 1, 2023 | Version v1

Compilation of 17 anthropogenic pressure gradients and 18 benthic indicators in the Baltic Sea, Atlantic Ocean and Mediterranean Sea

Description

Compilation of 17 benthic datasets that sampled benthic ecosystems over gradients of commercial bottom trawling intensity (n=14), eutrophication (n=1), oxygen depletion (n=1) and pollution (n=1) (Table 1).

Compilation of 18 benthic indicators that were calculated for each gradient dataset. The indicators estimated were community biomass, abundance, richness, relative Margalef diversity, Shannon index, Simpson index, Inverse Simpson,  AZTI’s Marine Biotic Index (AMBI), Multivariate AMBI (M-AMBI), BENTIX Biotic Index (BENTIX), Danish Quality Index (DKI), Trawling Disturbance Index (TDI), Modified TDI (mTDI), Modified vulnerability index (mT), Median longevity (Lm), Partial TDI (pTDI), Sentinels of Seabed (SoS), Long-lived fraction (Lf).

The dataset has information on: 1) indicator outputs per sampling station; 2) combined data tables with gradient, station, and species information; 3) individual gradient information with replicate samples and the environmental variables reported in the original study.

 

Table 1. Overview of anthropogenic gradient datasets
Location Sampling method Pressure gradient
Adriatic Sea – Italian EEZ (sand) Rapido trawl Bottom trawling
Adriatic Sea – Italian EEZ (mud) Rapido trawl Bottom trawling
North Sea - Dutch EEZ Box core Bottom trawling
North Sea - Dogger Bank Hamon grab Bottom trawling
North Sea - Fladen Ground Day grab Bottom trawling
North Sea - Long Forties Hamon grab Bottom trawling
North Sea - Silver Pit Box core Bottom trawling
North Sea – Thames Box core Bottom trawling
Northern Iberian Coast (sand) Otter trawl Bottom trawling
Northern Iberian Coast (mud) Otter trawl Bottom trawling
Baltic Sea - Gotland van Veen grab Bottom trawling
Baltic Sea – Polish EEZ Box core Bottom trawling
NW Atlantic - Flemish Cap Otter trawl Bottom trawling
Irish Sea - Sellafield Day grab Bottom trawling
Gulf of Finland van Veen grab Oxygen depletion
Saronikos Gulf Box core Eutrophication
Vigo Estuary Box core Contaminants

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