This dataset holds the observations recorded during the GEO Biodiversity Day "Tauchen und Meer".

The data were collected in the Azov Sea during a cruise on board of R/V N. Danilevskiy in 1935. This dataset contains abundance data (individuals per m²) and biomass data (g/m²) for benthic taxa. No additional metadata is available.

Cyanobacteria occurrence in lakes from the Azores Archipelago based on data from monitoring programs dated from 1996 to 2018.

The dataset contains records of Iberian Wolf (Canis lupus), Wild Boar (Sus scrofa) and Roe Deer (Capreolus capreolus) collected in the lower valley of River Sabor (NE Portugal), in the scope of the long-term Ecological Monitoring Program (PME) of the Baixo Sabor Hydroelectric Dams (AHBS), promoted by EDP – Energias de Portugal, S.A. This dataset includes results of surveys made in and around the area affected by the dams, from March 2011 to August 2014. Sampling was performed by camera-traps distributed along the lower Sabor river valley (and some tributaries) and in rivers Maçãs and Angueira, from the river mouth up to 42 km upstream. The presence and identity of the target species were assessed by observing the photos taken with the cameras. A total of 3879 photos of the target species were obtained (2892 of Sus scrofa, 982 of Capreolus capreolus, and 5 of Canis lupus). These numbers do not necessarily refer to different individuals.

Data collected by the IBSS staff at several stations in the Black Sea during the first cruise in February 1957. This dataset contains abundance data (individuals per liter) and biomass data (mg/m³) for phytoplankton taxa. No additional metadata is available.

The dataset contains records of Cabrera vole (Mictotus cabrerae) and other small mammals (Rodentia and Eulipotyphla) collected in the lower valley of the River Tua, included in the Addendum to the Baseline Studies (2008) of the Environmental Impact Assessment of the Foz Tua Hydroelectric Dam, promoted by EDP – Energias de Portugal, S.A. Data were collected between November and December 2008 during field visits to 22 samping points, within habitats favourable habitats for M. cabrerae, on the area of the lower Tua valley directly or indirectly affected by the Foz Tua dam. The presence of individuals was recorded by capture with Sherman traps. The identification of the individuals attributed to the genus Microtus was confirmed by molecular analysis.

An annotated check-list is given of Ascidiacea species occurring deeper than 2000 m in the seas bordering Europe.

Netplankton data collected within the ALPEADRIA monitoring project in the Gulf of Trieste, North Adriatic Sea from 1990 to 1993.

The Protozoa collection of the Zoological Museum Amsterdam is modest in size (ca. 100 registered samples) and modest in importance (no nominal types). Its main contents are dry Foraminifera. Approximately half of the specimens are collected in Indonesia during the Siboga Expedition in 1899-1900.

Phytoplankton data collected by the IBSS staff at several stations in the Black Sea during a cruise of R/V Professor Vodyanitskij in November 1991. This dataset contains abundance data (individuals per liter) and biomass data (mg/m³) for phytoplankton taxa. No additional metadata is available.