Reference Library: Freshwater inputs

Biocalcification in the eastern oyster (Crassostrea virginica) in relation to long-term trends in Chesapeake Bay pH

  • Posted on: Mon, 06/13/2016 - 05:56
  • By: Anonymous

Estuarine waters are more susceptible to acidification because they are subject to multiple acid sources and are less buffered than marine waters. Consequently, estuarine shell-forming species may experience acidification sooner than marine species although, the tolerance of estuarine calcifiers to pH changes is poorly understood. This study analyzed 23 years ...

The transport, transformation and dispersal of sediment by buoyant coastal flows

  • Posted on: Mon, 06/13/2016 - 05:56
  • By: Anonymous

Rivers are a dominant source of sediment entering the ocean. The sediment can be trapped in frontal zones and other oceanographic features, leading to high concentrations. Because of this and other processes, the transport of sediment in river-influenced environments often occurs near the seafloor, rather than the surface.

Estuaries of the northeastern United States: Habitat and land use signatures

  • Posted on: Mon, 06/13/2016 - 05:56
  • By: Anonymous

Geographic signatures are physical, chemical, biotic, and human-induced characteristics or processes that help define similar or unique features of estuaries along latitudinal or geographic gradients. Geomorphologically, estuaries of the northeastern U.S., from the Hudson River estuary and northward along the Gulf of Maine shoreline, are highly diverse because of a ...

Influences of oceanographic processes on the biological productivity of the Gulf of Maine

  • Posted on: Mon, 06/13/2016 - 05:56
  • By: Anonymous

The Gulf of Maine's unusual geography and oceanography make it distinct from other continental shelf ecosystems. It has deep basins, shallow offshore banks that limit water flow between the Gulf and the open Atlantic Ocean, strong tidal mixing of it shallower waters, and a seasonal cycle of intense winter cooling, ...

The effect of CO2 acidified sea water and reduced salinity on aspects of the embryonic development of the amphipod Echinogammarus marinus (Leach)

  • Posted on: Mon, 06/13/2016 - 05:56
  • By: Anonymous

While ocean acidification may have some negative effects on the eggs of amphipods, exposure to low-salinity water is likely to affect the eggs more, based on ocean acidification trends projected for the next 300 years. (Laboratory study)

Coastal ocean acidification: The other eutrophication problem

  • Posted on: Wed, 03/30/2016 - 15:56
  • By: petert

Increased nutrient loading into estuaries causes the accumulation of algal biomass, and microbial degradation of this organic matter decreases oxygen levels and contributes towards hypoxia. A second, often overlooked consequence of microbial degradation of organic matter is the production of carbon dioxide (CO2) and a lowering of seawater pH. To ...

Ocean Acidification in the Coastal Zone from and Organism's Perspective: Multipe System Parameters, Frequency Domains, and Habitats

  • Posted on: Wed, 03/30/2016 - 15:53
  • By: petert

Multiple natural and anthropogenic processes alter the carbonate chemistry of the coastal zone in ways that either exacerbate or mitigate ocean acidification effects. Freshwater inputs and multiple acid-base reactions change carbonate chemistry conditions, sometimes synergistically. The shallow nature of these systems results in strong benthic-pelagic coupling, and marine invertebrates at ...

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