Reference Library: Gulf of Maine

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, ...

Interactive effects of ocean acidification and warming on subtidal mussels and sea stars from Atlantic Canada

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

Sea stars collected in Nova Scotia, Canada, grew more slowly under ocean acidification conditions, and their growth rate decreased further with a warmer temperature. In contrast, blue mussel grew more quickly with no response to temperature within the tested range. Predation of sea stars on mussels, measured as per-capita consumption ...

Relationship between CO2-driven changes in extracellular acid-base balance and cellular immune response in two polar echinoderm species

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

Green sea urchins were able to adjust their internal pH level within 5 days after being placed in ocean acidification conditions, but sea stars (Leptasterias polaris) were not. Internal pH did not appear to be related to immune response. (Laboratory study)

Creation of a Gilded Trap by the High Economic Value of the Maine Lobster Fishery

  • Posted on: Wed, 03/30/2016 - 15:44
  • By: petert

Unsustainable fishing simplifies food chains and, as with aquaculture, can result in reliance on a few economically valuable species. This lack of diversity may increase risks of ecological and economic disruptions. Centuries of intense fishing have extirpated most apex predators in the Gulf of Maine (United States and Canada), effectively ...

Episodic riverine influence on surface DIC in the coastal Gulf of Maine

  • Posted on: Wed, 03/30/2016 - 15:39
  • By: petert

Anomalously high precipitation and river discharge during the spring of 2005 caused considerable freshening and depletion of dissolved inorganic carbon (DIC) in surface waters along the coastal Gulf of Maine. Surface pCO2 and total alkalinity (TA) were monitored by repeated underway sampling of a cross-shelf transect in the western Gulf of ...

Sources of variability in Gulf of Maine circulation, and the observations needed to model it

  • Posted on: Wed, 03/30/2016 - 15:38
  • By: petert

Variability in the circulation of coastal oceans must ultimately be driven by changes in the meteorological conditions that force currents in the coastal ocean, and by variability in the waters entering the coastal ocean from elsewhere. If a coastal ocean is to be understood and modeled accurately, the external forcing ...

The kinematic and hydrographic structure of the Gulf of Maine Coastal Current

  • Posted on: Wed, 03/30/2016 - 15:34
  • By: petert

The Gulf of Maine Coastal Current (GMCC), which extends from southern Nova Scotia to Cape Cod Massachusetts, was investigated from 1998 to 2001 by means of extensive hydrographic surveys, current meter moorings, tracked drifters, and satellite-derived thermal imagery. The study focused on two principal branches of the GMCC, the Eastern ...

Changes in the timing of high river flows in New England over the 20th Century

  • Posted on: Wed, 03/30/2016 - 15:27
  • By: petert

The annual timing of river flows is a good indicator of climate-related changes, or lack of changes, for rivers with long-term data that drain unregulated basins with stable land use. Changes in the timing of annual winter/spring (January 1 to May 31) and fall (October 1 to December 31) center ...

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