The formation of a periglacial lake was forced at the glacier terminus in recent years by the fast disintegration of the glacier. The development of the untere Eisboden See is well documented. Since August 2002, a runoff gauge installed by the Hydrographical Service of Salzburg has recorded the discharge at the outlet of the new Unterer Eisboden See.

The Mooring D is located in the western Ross Sea in Terra Nova Bay. The mooring is equipped with sediment traps, currentometers, trasmissometer, fluorimeter and CTD.

Arrecifes coralinos y rocosos del Pacífico Mexicano desde Baja California hasta Chiapas. El trabajo se desarrolla en cuatro principales regiones: Sur del Golfo de California, Islas Revillagigedo, Bahía de Banderas y Bahías de Huatulco. Cabo Pulmo es el de mayor extensión. Tiene registradas 67 especies de corales en 368 localidades.

The Hydrological Observatory of Athens (HOA) is operated by the Centre for Hydrology and Informatics (CHI) of the National Technical University of Athens (NTUA). It is located in the region of Attica, covering the greater Athens area and the Rafina basin. The region of Attica is characterized as a Mediterranean eco-region, which includes three main land use types: urban, peri-urban and rural. Forests are limited to the mountainous areas of Parnitha, Penteli and Ymittos, which are frequently threatened by devastating wildfires, affecting the local ecosystems, hydrology, soil erosion and climate conditions. The hydrographic network is fragmented, mainly consisting of small coastal basins and streams. The most important water body is river Kifisos, which is a heavily modified water body running through a heavily urbanized environment.

The site of the Boknis Eck Time Series (BE) is located at the entrance of the Eckernförde Bay (54°31.2' N, 10°02.5' E) in the southwestern Baltic Sea. It has a water depth of 28 m with muddy sediments. Riverine inputs into the Eckernförde Bay are negligible and thus the overall hydrographic setting at BE is dominated by the regular inflow of North Sea water through the Kattegat and the Great Belt. Seasonal stratification occurs usually from mid-March until mid-September and causes pronounced hypoxia which sporadically become anoxic.

Lake Temo (IT10-006-A) is located in north-west Sardinia. The construction of the dam began in 1971 and ended in 1984. The reservoir lies at 226 m a.s.l. and has an area of 4.81 km2, a mean depth of 15.8 m and a maximum capacity of 91 x 106 m3. Its catchment extends for 142 km2.

The Site is located on the northeast Brazilian coast, East Brazil LME, and includes the seascape extending from the coast to the continental slope. The coastal area is formed by an ecosystem complex including remnantes of Atlantic forest, mangroves, seagrass beds and coraline reefs. These ecosystems are interconnected along the seascape over the typically carbonatic shelf, with widths around 18 nautical miles. Along the shelf, submerged channels related to continental drainage in glacial periods, and submerged reefs, form habitats responsible for supporting resources exploited by intense fishing activity. The outermost portion of the continental shelf, considered as an area of significant biological and ecological interest (EBSA), is a biodiversity hotspot, home to reef fish spawning aggregations, and higher fish yield associated with evidence of sub-surface upwellings. These seascape support complex ecological processes, subject to intense use, in an area recognized as a priority for conservation. The presence of Marine Protected Areas reflects this characteristic, both for the need to protect these environments, and for the socio-economic importance, with two protected areas for sustainable use (APAs) and one for Integrated Protection (Park), organized in mosaic.

Cabras Lagoon is located on the west coast of Sardinia (Italy), in the Gulf of Oristano (39°56’37’’N, 08°28’43’’E), and occupies about 2280 ha, with a mean water depth and maximum of 1.6 and 3 m respectively. The watershed of the site extends over approximately 430 km2. The input of freshwater into the lagoon is scarce and irregular because of the semi-arid Mediterranean climate. Most of the freshwater comes from the small Mare ‘e Foghe River, located in the north. The predominance of agriculture in the region and the release of poorly depurated urban waste account for the high nutrient loads deposited in Cabras Lagoon. The resident population of about 38,000 inhabitants is grouped in 19 urban centres, the largest being Cabras, which is located on the southeast coastal side of the lagoon. During the twentieth century, the lagoon and its watershed underwent several modifications as a consequence of human activities that affected the hydrology and hydraulics of the region. In addition, in the late 1970s, water exchange with the sea was altered by the dredging of a large canal, the Scolmatore (spillway), which connected the lagoon with the adjacent Gulf of Oristano. The canal was constructed to avoid flooding of adjacent land during the heavy rainfall that occurs in winter. In addition, a cement dam was built into the Scolmatore to prevent further increases in the lagoon’s salinity and artificial barriers were constructed to control the fish catch, thereby impeding direct communication between the lagoon and the sea. Now the only link to the sea is via four very narrow creeks that flow into the large canal from the southern part of the lagoon over the barrier. The lagoon has a high economic rating due to ex¬tensive fishery activities, involving about 300 people and those involved in related enterprises. In the site, in addition to the guard houses and warehouses of fishermen, there is also a restaurant, where the products of fishery in the lagoon are offered. In 1998, fish productivity reached 40,000 kg km-2, corresponding to a catch of 850 tonnes but these values fell to around 20,000 kg km-2 and less than 80 tonnes after 1999. In fact, its high trophic status has often exposed the lagoon to important dystrophic crises, which have caused large reductions in its fishing productivity. Scientific monitoring has been carried out since the strong dystrophic crisis that affected Cabras Lagoon during the summer of 1999, killing the whole aquatic biota. A long-term series of data is available and derives from high-frequency measurements and samplings to assess environmental and biological parameters. In particular the data concern the main trophic descriptors (Secchi depth, temperature, pH, conductivity, dissolved oxygen and saturation, alkalinity, NH4-N, NO2-N, NO3-N, total nitrogen, soluble reactive phosphorus, total phosphorus, dissolved silica) and phytoplankton abundances, as chlorophyll a, cell densities and biomass, class and species composition. The activity was interrupted in 2009.

Our primary study sites include a set of seven northern Wisconsin and four southern Wisconsin lakes and their surrounding landscapes. The project, which started in 1981, is administered by the Center for Limnology at the University of Wisconsin-Madison.

Lake Cuga (IT10-003-A) is located in the north-western part of Sardinia. The reservoir was built in 1965, but its first filling was in 1975. It lies at an altitude of 114 m a.s.l. and is extended for about 58 x 106 m2, with a maximum and average depth of 45 m and 11 m, respectively. It has a volume of 34 x 106 m3. The waters are used mainly for irrigation and drinking supplies. Cuga Lake is classified as eutrophic since the early years of its filling.