Evaluating the Habitat Requirements of the Golden Orb Mussel (Quadrula Aurea) for Conservation Purposes

Evaluating the Habitat Requirements of the Golden Orb Mussel (Quadrula Aurea) for Conservation Purposes

Date: May 2013
Creator: Hammontree, Sarah
Description: Many freshwater mussels are imperiled, due to a number of interrelated factors such as habitat alteration, degradation of water quality, and impoundments. The Golden Orb mussel (Quadrula aurea, I. Lea, 1859) is endemic to the state of Texas and is currently a candidate for the endangered species list, as the number of known populations has been declining in recent years. Little is currently known about Q. aurea aside from basic distribution data. This study is focused on evaluating a combination of macro-habitat and micro-habitat variables to determine their influence on the distribution and density of this species. Macro-habitat variables, including dominant land cover, surface geology, and soil erodibility factor, did not have a significant relationship with mussel distributions. The best model of micro-habitat variables that impacts the Q. aurea distributions is comprised of relative substrate stability (RSS) at moderate flows and current velocity at low flows. For all mussel species in this study, current velocity at low flows is the primary variable that influences distribution. Q. aurea are associated with habitats where larger sediment particles (large gravel and cobble) help to stabilize the substrate in areas with higher current velocities. An understanding of the preferred habitats for Q. aurea can ...
Contributing Partner: UNT Libraries
Final Recommendations of the Interagency Ocean Policy Task Force

Final Recommendations of the Interagency Ocean Policy Task Force

Date: July 19, 2010
Creator: United States. Interagency Ocean Policy Task Force.
Description: This report provides recommendations for a strengthened governance structure to provide sustained, high-level, and coordinated attention to ocean, coastal, and Great Lake issues with a framework that addresses conservation, economic activity, user conflict, and sustainable use of ocean, coastal, and Great Lakes resources.
Contributing Partner: UNT Libraries
Executive Order - Stewardship of the Ocean, Our Coasts, and the Great Lakes

Executive Order - Stewardship of the Ocean, Our Coasts, and the Great Lakes

Date: July 19, 2010
Creator: United States. President (2009- : Obama)
Description: This order establishes a national policy to ensure the protection, maintenance, and restoration of the health of ocean, coastal, and Great Lakes ecosystems and resources, enhance the sustainability of ocean and coastal economies, preserve maritime heritage, support sustainable uses and access, provide for adaptive management to enhance understanding of and capacity to respond to climate change and ocean acidification, and coordinate with national security and foreign policy interests. This order also provides for the development of coastal and marine spatial plans that build upon and improve existing Federal, State, tribal, local, and regional decision making and planning processes.
Contributing Partner: UNT Libraries
Annex VI to the Protocol of Environmental Protection to the Antarctic Treaty : message from the President of the United States transmitting Annex VI on liability arising from environmental emergencies to the Protocol on Environmental Protection to the Antarctic Treaty (Annex VI), adopted on June 14, 2005

Annex VI to the Protocol of Environmental Protection to the Antarctic Treaty : message from the President of the United States transmitting Annex VI on liability arising from environmental emergencies to the Protocol on Environmental Protection to the Antarctic Treaty (Annex VI), adopted on June 14, 2005

Date: 2009
Creator: United States. President (2009- : Obama) & Clinton, Hillary Rodham
Description: This amendment to the Antarctic Treaty deals with preventing and managing environmental emergencies in the Antarctica Treaty area.
Contributing Partner: UNT Libraries
Agreement on conservation of albatrosses and petrels : message from the President of the United States transmitting Agreement on the Conservation of Albatrosses and Petrels, with annexes, done at Canberra, June 19, 2001.

Agreement on conservation of albatrosses and petrels : message from the President of the United States transmitting Agreement on the Conservation of Albatrosses and Petrels, with annexes, done at Canberra, June 19, 2001.

Date: 2008
Creator: United States. President (2001-2009 : Bush) & Rice, Condoleezza, 1954-
Description: This treaty builds on the Convention on the Conservation of Migratory Species of Wild Animals by adding specific protections to albatrosses and petrels.
Contributing Partner: UNT Libraries
Green Infrastructure in Arid and Semi-Arid Climates

Green Infrastructure in Arid and Semi-Arid Climates

Date: May 2010
Creator: United States. Environmental Protection Agency.
Description: This brochure describes the benefits of adopting "green infrastructure" design principles to communities in arid and semi-arid regions.
Contributing Partner: UNT Libraries
The State of the Hudson 2009

The State of the Hudson 2009

Date: 2009
Creator: New York (State). Hudson River Estuary Program.
Description: This report describes the environmental quality of the Hudson River and its watershed, including issues such as pollution, population growth, and biodiversity. The report also describes the habitats of estuaries, watersheds, and rivers in general.
Contributing Partner: UNT Libraries
Incorporating biodiversity considerations into environmental impact analysis under the National Environmental Policy Act

Incorporating biodiversity considerations into environmental impact analysis under the National Environmental Policy Act

Date: January 1993
Creator: Council on Environmental Quality (U.S.)
Description: This report outlines general concepts that underlie biological diversity analysis and management, and discusses methods for considering biodiversity in current and future NEPA analyses.
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Proposed National Objectives, Principles and Standards for Water and Related Resources Implementation Studies

Proposed National Objectives, Principles and Standards for Water and Related Resources Implementation Studies

Date: December 3, 2009
Creator: Council on Environmental Quality (U.S.)
Description: This document reflects planning efforts by the Executive Office of the President to design federal policy for the use of water resources.
Contributing Partner: UNT Libraries
Great Lakes Restoration Initiative Action Plan

Great Lakes Restoration Initiative Action Plan

Date: February 21, 2010
Creator: United States. Council on Environmental Quality.
Description: This action plan articulates the most significant ecosystem problems for the Great Lakes, and describes efforts to address them. The five areas are toxic substances, invasive species, health and pollution, wildlife and habitat preservation and restoration, and finally a component that covers accountability and evaluation.
Contributing Partner: UNT Libraries
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