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University of New Hampshire

PREP Reports & Publications

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2013

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Shellfish Tissue Monitoring In Piscataqua Region Estuaries 2013, Matthew A. Wood, Philip R. Trowbridge Dec 2013

Shellfish Tissue Monitoring In Piscataqua Region Estuaries 2013, Matthew A. Wood, Philip R. Trowbridge

PREP Reports & Publications

Originally conducted by the Gulf of Maine Council on the Marine Environment from 1993 to 2011, the Gulfwatch Program examined trends in the water quality of the Gulf of Maine by monitoring toxic contaminant concentrations in the tissues of shellfish. Starting in 2012 the Piscataqua Region Estuaries Partnership (PREP) continued this program in the Piscataqua Region. Each year, PREP collects blue mussels at three sites: Dover Point, NH (NHDP), Clark Cove on Seavey Island, ME (MECC), and Hampton-Seabrook Harbor (NHHS). The mussel tissue is analyzed to determine the concentrations of toxic contaminantss including heavy metals, chlorinated pesticides, polychlorinated biphenyls (PCBs), …


Memorandum: Calibration Of Great Bay Estuary Hydrodynamic Model And Incremental Nitrogen Estimation, Thomas W. Gallagher, Cristhian Mancilla Nov 2013

Memorandum: Calibration Of Great Bay Estuary Hydrodynamic Model And Incremental Nitrogen Estimation, Thomas W. Gallagher, Cristhian Mancilla

PREP Reports & Publications

This technical memorandum summarizes the completion of the calibration of a hydrodynamic model of the Great Bay Estuary System (GBES) originally started as part of the Squamscott River modeling study. The Squamscott River modeling study was discontinued when it was realized that excessive levels of algae in the Exeter wastewater lagoons discharge had a significant effect on Squamscott River water quality. Because Exeter plans to upgrade its wastewater treatment system and eliminate excessive algal levels in its effluent discharge, it was decided not to develop a hydrodynamic water quality model with Squamscott River water quality data that is so atypical …


Shellfish Tissue Monitoring In Piscataqua Region Estuaries 2010 And 2011, Matthew A. Wood, Philip R. Trowbridge Sep 2013

Shellfish Tissue Monitoring In Piscataqua Region Estuaries 2010 And 2011, Matthew A. Wood, Philip R. Trowbridge

PREP Reports & Publications

Conducted by a committee of Canadian and US government and university scientists, Gulfwatch examines the effects of decades of development and industrialization on the water quality of the Gulf as it relates to human health primarily through assessing contaminant exposure of marine organisms. Gulfwatch scientists collect blue mussels at over 60 US and Canadian sites Gulfwide, and analyze the organisms’ tissue for potentially harmful levels and concentrations of toxins including heavy metals, chlorinated pesticides, polychlorinated biphenyls (PCBs), and polycyclic aromatic hydrocarbons (PAHs).


Shellfish Tissue Monitoring In Piscataqua Region Estuaries 2012, Matthew A. Wood, Philip R. Trowbridge Sep 2013

Shellfish Tissue Monitoring In Piscataqua Region Estuaries 2012, Matthew A. Wood, Philip R. Trowbridge

PREP Reports & Publications

Originally conducted by a committee of Canadian and US governments and university scientists, Gulfwatch examined the effects of decades of development and industrialization on the water quality of the Gulf of Maine as it relates to human health primarily through assessing contaminant exposure of marine organisms from 1993 to 2010. The NH Gulfwatch Program continues these efforts by collecting blue mussels at two sites in the Great Bay Estuary and one in the Hampron-Seabrook Estuary, and analyzes the organisms’ tissue for potentially harmful levels and concentrations of toxins including heavy metals, chlorinated pesticides, polychlorinated biphenyls (PCBs), and polycyclic aromatic hydrocarbons …


Great Bay Estuary Eelgrass Monitoring Program For 2013 Quality Assurance Project Plan Conducted By Kappa Mapping, Inc., Philip Trowbridge Aug 2013

Great Bay Estuary Eelgrass Monitoring Program For 2013 Quality Assurance Project Plan Conducted By Kappa Mapping, Inc., Philip Trowbridge

PREP Reports & Publications

No abstract provided.


Eelgrass Distribution In The Great Bay Estuary For 2012, Frederick T. Short Aug 2013

Eelgrass Distribution In The Great Bay Estuary For 2012, Frederick T. Short

PREP Reports & Publications

Eelgrass in the Great Bay Estuary declined in both distribution and biomass between 2011 and 2012, continuing the long-term trend of eelgrass loss. In 2012, eelgrass was once again mainly present in the Great Bay itself with limited distribution in Portsmouth Harbor and Little Bay. Eelgrass distribution in Great Bay decreased 1.5% between 2011 and 2012 with no change in biomass. In Great Bay,eelgrass distribution has declined 36% since 1996 and biomass is a quarter of what it was in the early 1990s. Nuisance macroalgae in Great Bay continued to proliferate in 2012 and to impact eelgrass by smothering eelgrass …


Oyster Bed Mapping In The Great Bay Estuary, 2012-2013, Raymond E. Grizzle, Krystin M. Ward Jun 2013

Oyster Bed Mapping In The Great Bay Estuary, 2012-2013, Raymond E. Grizzle, Krystin M. Ward

PREP Reports & Publications

Six major oyster beds (reefs) in New Hampshire are mapped periodically to assess wild oyster populations in the Great Bay Estuary. Data on the spatial extent of the beds are combined with density and other measures to estimate the abundances of live oysters. The first objective of the present project was to determine the spatial extent of these six oyster beds, and to compare the 2012/2013 data with previous mapping efforts. A second objective was twofold: to map the extent of live oyster bottom at selected recent oyster restoration sites, and to map areas where oyster beds have been known …


Testing Of Great Bay Oysters For Two Protozoan Pathogens, New Hampshire Fish And Game Department, Douglas E. Grout Mar 2013

Testing Of Great Bay Oysters For Two Protozoan Pathogens, New Hampshire Fish And Game Department, Douglas E. Grout

PREP Reports & Publications

Two protozoan pathogens, Haplosporidium nelsoni (MSX) and Perkinsus marinus (Dermo), are known to be present in Great Bay oysters. With funds provided by the Piscataqua Region Estuaries Partnership (PREP), the Marine Fisheries Division of the New Hampshire Fish and Game Department (NHF&G) continues to assess the presence and intensity of both of these disease conditions in oysters from the major beds within the Great Bay estuarine system. Histological examinations of Great Bay oysters have also revealed other endoparasites.


State Of Our Estuaries 2013, Piscataqua Region Estuaries Partnership Jan 2013

State Of Our Estuaries 2013, Piscataqua Region Estuaries Partnership

PREP Reports & Publications

Every three years the Piscataqua Region Estuaries Partnership (PREP) produces this condition and environmental trends report in an effort to provide communities and citizens with an informed and comprehensive evaluation of what is being observed in our estuaries. This report presents our assessment of 22 key indicators of the health of our bays: 15 of which are classified as having cautionary or negative conditions or trends, while 7 show positive conditions or trends. The overall assessment shows that there is reason to be concerned about the health of our estuaries, and that increased efforts to study and restore our estuaries …


Assessing The Risk Of 100-Year Freshwater Floods In The Lamprey River Watershed Of New Hampshire Resulting From Changes In Climate And Land Use, Cameron P. Wake, Steve Miller, Robert Roseen, Ann Scholz, Fay A. Rubin, Michael Simpson, Cliff Sinnott, Julia Peterson, Lisa Townson Jan 2013

Assessing The Risk Of 100-Year Freshwater Floods In The Lamprey River Watershed Of New Hampshire Resulting From Changes In Climate And Land Use, Cameron P. Wake, Steve Miller, Robert Roseen, Ann Scholz, Fay A. Rubin, Michael Simpson, Cliff Sinnott, Julia Peterson, Lisa Townson

PREP Reports & Publications

What is the coastal resource issue the project sought to address? Both the magnitude and frequency of freshwater flooding is on the rise in seacoast NH and around much of New England. In the Great Bay watershed, this is the result of two primary causes: 1) increases in impervious surface stemming from a three-to-four fold increase in developed land since 1962; and 2) changing rainfall patterns in part exemplified by a doubling in the frequency of extreme weather events that drop more than 4 inches of precipitation in less than 48 hours (Wake et al., 2011) over the same time …


Ctizen: What You Can Do To Help Improve Our Estuaries, Piscataqua Region Estuaries Partnership Jan 2013

Ctizen: What You Can Do To Help Improve Our Estuaries, Piscataqua Region Estuaries Partnership

PREP Reports & Publications

The need to keep our Seacoast rivers, lakes, marshes and Great Bay free of pollution is something we can all agree on. As the Community for Clean Water, PREP works to unite and encourage you, your friends and family to take simple steps to reduce water pollution caused by our every day actions. This guide has some tips, stories of those who are working on solutions and ways you can get involved. We’re not here to save the world, but together we’re confi dent that we can all do our part to keep the places we love around the Seacoast …


Policy Guide For Municipal Leaders And Legislators, Piscataqua Region Estuaries Partnership Jan 2013

Policy Guide For Municipal Leaders And Legislators, Piscataqua Region Estuaries Partnership

PREP Reports & Publications

This Guide for Municipal Leaders and Legislators, is a companion to the full 2013 State of Our Estuaries Report, and focuses more specifically on what state and local leaders can do to improve environmental conditions in the estuaries. It provides a short list of priority policy options for decision-makers to consider, as well as model efforts from our own communities that can be replicated in support of our environmental health and economic vitality.