Reference Library: Northeast U.S.

Nutrient pulses, plankton blooms, and seasonal hypoxia in western Long Island Sound

  • Posted on: Wed, 03/30/2016 - 14:28
  • By: petert

Development of seasonal hypoxia was studied weekly in the western narrows of Long Island Sound (WLIS) during the summers of 1992 and 1993 by measuring hydrographic properties, biological oxygen demand (BOD), biomass, production, and mortality of phytoplankton and bacterioplankton in the water column. Dissolved oxygen in bottom waters was low ...

Early Exposure of Bay Scallops (Argopecten irradians) to High CO2 Causes a Decrease in Larval Shell Growth

  • Posted on: Wed, 03/30/2016 - 14:00
  • By: petert

Ocean acidification, characterized by elevated pCO2 and the associated decreases in seawater pH and calcium carbonate saturation state (Ω), has a variable impact on the growth and survival of marine invertebrates. Larval stages are thought to be particularly vulnerable to environmental stressors, and negative impacts of ocean acidification have been seen ...

The marine inorganic carbon system along the Gulf of Mexico and Atlantic coasts of the United States: Insights from a transregional coastal carbon study

  • Posted on: Wed, 03/30/2016 - 13:57
  • By: petert

Distributions of total alkalinity (TA), dissolved inorganic carbon (DIC), and other parameters relevant to the marine inorganic carbon system were investigated in shelf and adjacent ocean waters during a U.S. Gulf of Mexico and East Coast Carbon cruise in July–August 2007. TA exhibited near-conservative behavior with respect to salinity. Shelf ...

Effects of past, present, and future ocean carbon dioxide concentrations on the growth and survival of larval shellfish

  • Posted on: Wed, 03/30/2016 - 13:54
  • By: petert

The combustion of fossil fuels has enriched levels of CO2 in the world’s oceans and decreased ocean pH. Although the continuation of these processes may alter the growth, survival, and diversity of marine organisms that synthesize CaCO3 shells, the effects of ocean acidification since the dawn of the industrial revolution are not ...

The effects of elevated carbon dioxide concentrations on the metamorphosis, size, and survival of larval hard clams (Mercenaria mercenaria), bay scallops (Argopecten irradians), and Eastern oysters (Crassotrea virginica)

  • Posted on: Wed, 03/30/2016 - 13:50
  • By: petert

We present experiments that examined the metamorphosis, growth, and survivorship of larvae from three species of commercially and ecologically valuable shellfish (Mercenaria mercenaria, Argopecten irradians, and Crassostrea virginica) at the levels of CO2 projected to occur during the 21st century and beyond. Under CO2 concentrations estimated to occur later this century (~66 Pa, 650 ...

Ocean Acidification 2.0: Managing our Changing Coastal Ocean Chemistry

  • Posted on: Wed, 03/30/2016 - 13:47
  • By: petert

Ocean acidification (OA) is rapidly emerging as a significant problem for organisms, ecosystems, and human societies. Globally, addressing OA and its impacts requires international agreements to reduce rising atmospheric carbon dioxide concentrations. However, the complex suite of drivers of changing carbonate chemistry in coastal environments also requires regional policy analysis, ...

Surface ocean pCO2 seasonality and sea-air CO2 flux estimates for the North American east coast

  • Posted on: Wed, 03/30/2016 - 13:44
  • By: petert

Underway and in situ observations of surface ocean pCO2, combined with satellite data, were used to develop pCO2 regional algorithms to analyze the seasonal and interannual variability of surface oceanpCO2 and sea-air CO2 flux for five physically and biologically distinct regions of the eastern North American continental shelf: the South Atlantic Bight (SAB), the Mid-Atlantic ...

Offspring sensitivity to ocean acidification changes seasonally in a coastal marine fish

  • Posted on: Wed, 03/30/2016 - 12:57
  • By: petert

 Experimental assessments of species vulnerabilities to ocean acidification are rapidly increasing in number, yet the potential for short- and long-term adaptation to high CO2 by contemporary marine organisms remains poorly understood. We used a novel experimental approach that combined bi-weekly sampling of a wild, spawning fish population (Atlantic silverside Menidia menidia) with ...

Ocean Acidification Decreases Growth and Development in American Lobster (Homarus americanus) Larvae

  • Posted on: Tue, 03/29/2016 - 17:03
  • By: petert

Ocean acidification resulting from the global increase in atmospheric CO2 concentration is emerging as a threat to marine species, including crustaceans. Fisheries involving the American lobster (Homarus americanus) are economically important in eastern Canada and United States. Based on ocean pH levels predicted for 2100, this study examined the effects ...

Adverse Effects of Ocean Acidification on Early Development of Squid (Doryteuthis pealeii)

  • Posted on: Tue, 03/29/2016 - 16:57
  • By: petert

Anthropogenic carbon dioxide (CO2) is being absorbed into the ocean, altering seawater chemistry, with potentially negative impacts on a wide range of marine organisms. The early life stages of invertebrates with internal and external aragonite structures may be particularly vulnerable to this ocean acidification. Impacts to cephalopods, which form aragonite ...

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