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Full-Text Articles in Life Sciences

Salinity And Stratification In The Gulf Of Maine: 2001-2008, Heather E. Deese-Riordan Dec 2009

Salinity And Stratification In The Gulf Of Maine: 2001-2008, Heather E. Deese-Riordan

Electronic Theses and Dissertations

The salinity and vertical density structure (stratification) of the Gulf of Maine strongly influence the physical and biological character of the region including: circulation and transport, vertical mixing, and primary productivity. Variability in salinity and stratification also provides insights into the character and timing of the oceanic waters entering the region, a key to predicting regional climate change. This thesis addresses outstanding questions related to variability in salinity and the relative role of salinity and temperature in creating stratification. Hourly observations from Ocean Observing System buoys throughout the Gulf provide the primary data source for this investigation. Analysis of estimated …


Collaborative Research: The Response Of Lakes To Disturbance And Climate Change: Calibrating Sedimentary Records To Test The Landscape Position Concept, Jasmine E. Saros Oct 2009

Collaborative Research: The Response Of Lakes To Disturbance And Climate Change: Calibrating Sedimentary Records To Test The Landscape Position Concept, Jasmine E. Saros

University of Maine Office of Research Administration: Grant Reports

Landscape disturbance and climate change affect lakes in proportion to their contact with ground water, sometimes resulting in different responses in neighboring lakes. This project develops methods for reconstructing past water chemistry and food webs of lakes. The biological and chemical deposits in surface sediment samples will be compared with the water in 62 modern lakes. The resulting relationships will be tested by comparing sediment cores with 24 years of observations from the North Temperate Lakes Long Term Ecological Research (NTL-LTER) site. The methods will then be used to reconstruct 150 years of history for several lakes, adding perspective to …


The Lobster Bulletin, Fall 2009, Lobster Institute, University Of Maine Oct 2009

The Lobster Bulletin, Fall 2009, Lobster Institute, University Of Maine

Lobster Bulletin

The Lobster Bulletin newsletter includes research updates, and information on lobsters and the lobster industry. The Lobster Institute at the University of Maine is dedicated to protecting and conserving the lobster resource, and enhancing lobstering as an industry and a way of life.

Headlines in the Fall 2009 issue include:

  • Lobster Council of Canada Has Great Potential
  • Lobster Institute Events of Interest
  • 2010 Canadian/U.S. Lobstermen's Town Meeting
  • Research Report: Lobster Health Coalition Makes Progress on Baseline Health Data
  • Research Report: LFA 33/34 Lobster Moult Timing & Quality Monitoring Project Update
  • Fisheries On-Line Forum Launched


Collaborative Research: Abandoned Elephant Seal Colonies In Antarctica: Integration Of Genetic, Isotopic, And Geologic Approaches Toward Understanding Holocene Environmental Change, Brenda L. Hall Sep 2009

Collaborative Research: Abandoned Elephant Seal Colonies In Antarctica: Integration Of Genetic, Isotopic, And Geologic Approaches Toward Understanding Holocene Environmental Change, Brenda L. Hall

University of Maine Office of Research Administration: Grant Reports

During previous NSF-sponsored research, the PI's discovered that southern elephant seal colonies once existed along the Victoria Land coast (VLC) of Antarctica, a region where they are no longer observed. Molted seal skin and hair occur along 300 km of coastline, more than 1000 km from any extant colony. The last record of a seal at a former colony site is at ~A.D. 1600. Because abandonment occurred prior to subantarctic sealing, disappearance of the VLC colony probably was due to environmental factors, possibly cooling and encroachment of land-fast, perennial sea ice that made access to haul-out sites difficult. The record …


Influence Of Silvicultural Treatment, Site Characteristics, And Land Use History On Native And Nonnative Forest Understory Plant Composition On The Penobscot Experimental Forest In Maine, Elizabeth Bryce Aug 2009

Influence Of Silvicultural Treatment, Site Characteristics, And Land Use History On Native And Nonnative Forest Understory Plant Composition On The Penobscot Experimental Forest In Maine, Elizabeth Bryce

Electronic Theses and Dissertations

This study investigates forest understory plant diversity and composition in managed and unmanaged stands within the context of a long-term silvicultural experiment in the Acadian Forest of Maine. I examined the effects of silvicultural intensity and past land use on understory plant species diversity and composition. Silvicultural treatments include three variants of the selection system, three variants of the shelterwood system, modified and fixed diameter-limit cutting, and an unregulated harvest. Two types of unmanaged stands were studied: a continuously forested natural area and secondary forest stands on old fields. Chapter 1 presents analysis of understory plant diversity and composition in …


The Lobster Bulletin, Summer 2009, Lobster Institute, University Of Maine Jul 2009

The Lobster Bulletin, Summer 2009, Lobster Institute, University Of Maine

Lobster Bulletin

The Lobster Bulletin newsletter includes research updates, and information on lobsters and the lobster industry. The Lobster Institute at the University of Maine is dedicated to protecting and conserving the lobster resource, and enhancing lobstering as an industry and a way of life.

Headlines in the Summer 2009 issue include:

  • Development of Best Management Practices to Reduce or Eliminate Stress on Lobsters
  • Mariner Beverages, USA Wine West Unveil New Wine to Benefit the Lobster Institute
  • Lobster Institute Presents First Rising Star Award to Lobster Gram, Inc.
  • Best Management Practices to Reduce or Eliminate Stress from Hauling & Handling of Lobsters …


The Lobster Bulletin, Spring 2009, Lobster Institute, University Of Maine Apr 2009

The Lobster Bulletin, Spring 2009, Lobster Institute, University Of Maine

Lobster Bulletin

The Lobster Bulletin newsletter includes research updates, and information on lobsters and the lobster industry. The Lobster Institute at the University of Maine is dedicated to protecting and conserving the lobster resource, and enhancing lobstering as an industry and a way of life.

Headlines in the Spring 2009 issue include:

  • Canadian Officials May Consider Ban of Floating Rope
  • Sustainability Labeling & Traceability Trigger Much Discussion at Lobster Institute's 2009 Canadian/U.S. Lobstermen's Town Meeting
  • Research Report: FSRS Lobster Recruitment Index
  • Research Report: American Lobster Stock Assessment 2009
  • The Lobster Institute presents Lobster College 2009


The Lobster Bulletin, Winter 2009, Lobster Institute, University Of Maine Jan 2009

The Lobster Bulletin, Winter 2009, Lobster Institute, University Of Maine

Lobster Bulletin

The Lobster Bulletin newsletter includes research updates, and information on lobsters and the lobster industry. The Lobster Institute at the University of Maine is dedicated to protecting and conserving the lobster resource, and enhancing lobstering as an industry and a way of life.

Headlines in the Winter 2009 issue include:

  • Lobster Institute to Host 2009 Canadian/U.S. Lobstermen's Town Meeting, March 27-28
  • Lobster Health Coalition Takes Shape
  • 2008 Friends of the Lobster Institute
  • Research Report: Lobster Enhancement Efforts Discussed
  • Study on Economic Impact of Joint Canadian/U.S. Marketing of Lobster on Tap
  • Research Report: Lobster Science Presentations Available Online