<p>ARMS-MBON is a network of more than 25 partners who deploy Autonomous Reef Monitoring Structures (ARMS) settlement units in the vicinity of marine stations and Long-term Ecological Research sites in European coastal waters and Ant/arctica. After a few months the units are brought up, and visual, photographic, and genetic assessments are made of the lifeforms that settled on them. The collected data are published (see the related datasets and GitHub links listed in this record) and the omics data analysed.-nbsp;</p><p>In this record we include the outputs of our analysis of the ITS data from 2018-2020. The analysis used the PEMA bioinformatics software, and the resulting taxonomics inventory has been submitted as DwCA to (Eur)OBIS. In addition, all the PEMA inputs and outputs can be found on the ARMS-MBON GitHub site (see links in this record), and the subset of the sampling data to which these ITS results are linked can also be found on the ARMS-MBON GitHub site.</p>

<p>ARMS-MBON is a network of more than 25 partners who deploy Autonomous Reef Monitoring Structures (ARMS) settlement units in the vicinity of marine stations and Long-term Ecological Research sites in European coastal waters and Ant/arctica. After a few months the units are brought up, and visual, photographic, and genetic assessments are made of the lifeforms that settled on them. The collected data are published (see the related datasets and GitHub links listed in this record) and the omics data analysed.-nbsp;</p><p>In this record we include the outputs of our analysis of the COI data from 2018-2020. The analysis used the PEMA bioinformatics software, and the resulting taxonomics inventory has been submitted as DwCA to (Eur)OBIS. In addition, all the PEMA inputs and outputs can be found on the ARMS-MBON GitHub site (see links in this record), and the subset of the sampling data to which these COI results are linked can also be found on the ARMS-MBON GitHub site.</p>

The Pomorie Lake is a natural hyper-saline lake – a sea coast lagoon, part of which has been converted to salt ponds. Also, it includes salty marshes and reed fields. Together with the Burgas wetlands, the lake forms the largest and most significant conservation complex along the southern Black Sea coastline. The area includes the estuary of the Aheloi River.The total Ramsar site area is 921,5 ha.Protected territory since 2011. In 2002 the lake is proclaimed for a wetland with international importance according to the Ramsar convention. In 1989 the territory is designated as an Important Bird Area and in 2007 it became part of the Natura 2000 network: Protected Site “Pomoriysko ezero” with code BG0000152 according to the Bird Directive and Protected site“Pomorie” with code BG0000620 according to the Habitat Directive.The following natural habitat types of significance for conservation, according to the Biodiversity Act and to the Habitats Directive have been established: 1150 Coastal lagoons; 1160 Large shallow inlets and bays; 1170 Reefs; 1310 Salicornia and other annuals colonizing mud and sand; 1530 Pannonic salt steppes and salt marshes; 2110 Embryonic shifting dunes; 2120 Pannonic dunes along the shoreline with Ammophila arenaria (white dunes); 92D0 Southern riparian galleries and thickets (Nerio-Tamaricetea and Securinegion tinctoriae).

Map of broad habitat types in Bulgarian Black Sea shelf which equate to one or more habitat types of the EUNIS classification

This is the first map of reefs in Bulgarian Black Sea drawn based on expert interpretation of the following data: point data on the type of substrate (sediments, hard), rock samples, sediment thickness over bedrock determined by divers, acoustic profiling of the seabed morphology.

This is the first map of sandbanks in Bulgarian Black Sea drawn based on expert interpretation of the following data: point data on the type of substrate (sediments, hard), grain size of sediments, sediment thickness determined by divers, acoustic profiling of the seabed morphology.

Map of benthic biotopes in the sediments in part of Natura 2000 SAC Ropotamo, the Bulgarian Black Sea. The biotopes were defined based on the sediment type, depth range and the typical associated macrozoobenthos communities as differentiated by multivariate similarity analyses.

Dataset of meiobenthos in the framework of Manuela.

This dataset was compiled to describe the intertidal meiobenthic community of Kongsfjorden and to better understand the relationship between the horizontal and vertical distribution of meiofauna with a special focus on nematodes and environmental features

These data were collected as part of a large study, aiming to compare the structure of the nematode communities at two comparable sublittoral sites, located in the Southern Baltic and the south-eastern part of the North Sea.