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• Coastal pollution and impacts
  ...to watershed impacts is examined in relation to land-derived pollution and water quality. ...griculture: a global review. Executive summary. FAO (UN) and International Water Management Institute. </ref>:
  26 KB (3,841 words) - 16:44, 20 February 2024
• Nutrient conversion in the marine environment
  ...rganic material (phytoplankton, zooplankton, …) first takes place in the water column<ref>Middelburg, J.J., Soetaert, K., Herman, P.M.J. and Heip, C.H.R. ...itrite and ammonium ions directly into diatomic nitrogen N₂ and water<ref>Burgin, A. and Hamilton, S. 2007. Have we overemphasized the role of de
  26 KB (3,923 words) - 20:02, 4 August 2023
• Submarine groundwater discharge
  ...sea, and not via surface streams. Groundwater is synonymous with soil pore water. In order to assess the magnitude of SGD, different investigations based on ...ichael H.A., Mulligan A.E. and Harvey C.F. (2005) Seasonal oscillations in water exchange between aquifers and the coastal ocean. ''Nature'' '''436''' 1145-
  31 KB (4,626 words) - 12:46, 12 August 2021
• Biodiversity in the European Seas
  ...It takes 25-35 years for all the water in the Baltic to be replenished by water from the North Sea and beyond. ...ratification]] between low-salinity surface water and the more saline deep water at a depth of about 40-70 m. This salinity barrier prevents the exchange of
  26 KB (3,907 words) - 18:35, 21 February 2024
• Eutrophication in coastal environments
  ...increased sedimentation and oxygen consumption, oxygen depletion in lower water layers and, sometimes, mortality of [[benthic]] animals and fish. Mitigatio *oxygen depletion in lower water layers (see [[Estuarine turbidity maximum]])
  18 KB (2,538 words) - 12:37, 30 March 2022
• Mangroves
  Mangroves are the only trees that are capable of thriving in salt water. They form unique [[intertidal]] forests at the edge of land and sea, see F ...rtially exposed network of roots that grow down from the branches into the water and sediment. They settle where there is little [[waves|wave action]] and w
  42 KB (6,310 words) - 17:09, 21 April 2024
• Eutrophication related monitoring tasks and WFD for coastal waters in Greece
  .../EEC) addresses the major point sources, in particular the municipal waste water discharges. The Nitrates Directive (91/676/EEC) deals with the diffuse poll ===Water Framework Directive (WFD)===
  26 KB (3,720 words) - 21:54, 1 August 2019
• Effects of fisheries on marine biodiversity
  ...global landings of fishes in the last 50 year is from shallow to deeper water species; this resulted in the fact that the mean longevity of the fish spec ...pension include the release of nutrients held in the sediment, exposure of anoxic layers, release of contaminants, increasing biological oxygen demand, smoth
  33 KB (4,853 words) - 13:29, 1 February 2024
• Salt marshes
  ...one between the land and the sea and that are covered by salty or brackish water for part of the time. They can be considered, in some way, as the analogue ...ed sediments and sheltered locations where particles can settle out of the water column.
  28 KB (4,120 words) - 21:17, 24 April 2024
• Anoxic
  Definition|title=Anoxic ...the water or sediment, as in the case of stagnation or stratification of a water body.
  338 bytes (53 words) - 17:24, 25 February 2022
• Baltic Sea
  | Residence time of water ...ern part. As an effect of such stratification is existence of two types of water masses – relatively light freshened surface – and heavier more salty de
  14 KB (2,085 words) - 15:24, 20 September 2020
• Black Sea
  ...is permanently devoid of oxygen; about 87% of the Black Sea water mass is anoxic and contains high levels of hydrogen sulphide. The Black Sea houses a wide Most non-native species in the Black Sea have been introduced in [[ballast water]]s from shipping. Low species diversity combined with high habitat diversit
  2 KB (357 words) - 17:24, 10 March 2021
• Algal bloom dynamics
  ...l conditions. Algal blooms are a worldwide phenomenon that occurs when the water temperature is favorable and light and nutrients are sufficiently available ...layer. Vertical mixing is counteracted by density stratification, whereby water with a higher temperature and/or lower salinity floats on top of colder/sal
  42 KB (6,475 words) - 18:18, 12 February 2024
• Mediterranean seagrass ecosystem
  ...e amount of sediment suspended in the water, helping to maintain the clear water conditions P. oceanica requires for growth. ...leaves trap larger grains of sand, providing a natural filter that ensures water reaching the shore is clearer and cleaner. ''P. oceanica'' meadows are exce
  37 KB (5,390 words) - 17:55, 24 February 2023
• Posidonia oceanica (Linnaeus) Delile
  ...nts, and are the main structures for absorbing carbon dioxide CO2 from the water column. Leaf life span in P. oceanica is almost a year with shoots living f ...nditions around the rhizosphere. Seagrasses growing in normally hypoxic or anoxic sediments are dependent on transporting sufficient O2 down to their roots t
  10 KB (1,588 words) - 12:12, 7 September 2020
• Marine geo-information system for the North Sea seafloor
  ...These bubbles ascend to the sediment water interface and possibly into the water column.]] ...</sub>) concentrations and locations where methane is transferred into the water column or atmosphere (Fig. 3).
  8 KB (1,224 words) - 15:26, 20 September 2020
• Mercury
  ...oils, and be flushed through rivers towards the ocean. Once deposited in [[anoxic]] soils, mercury can be transformed by bacteria to [[methylmercury]]. [[List of priority substances|Included in the water framework list of priority substances]]
  3 KB (459 words) - 14:24, 9 August 2020
• Bisphenol-A
  ...100% removal of environmental contamination can occur within 17 days. In [[anoxic]] sediments bisphenol A can be created from the degradation of [[Tetrabromo [[List of priority substances|Included in the water framework list of priority substances]]
  4 KB (550 words) - 14:03, 9 August 2020
• Microbial research
  ...ed that there were less than 200 different microorganisms in a typical sea water sample. But recent advances in molecular technologies have shown that the d ===Anoxic zones===
  12 KB (1,732 words) - 18:35, 22 February 2021
• Cienaga Grande de Santa Marta
  ...tself, occupies and area of approximately 1.300 km2 and the most important water system, the Ciénaga Grande de Santa Marta has an area of 450 km2, being by ...potranspiration of 1800 mm/a. Because of this dynamics and the movement of water and the connection with the rivers, the [[salinity]] of the Lagoon can vary
  24 KB (3,723 words) - 14:47, 3 August 2019

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