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MASC Newsletter 1 - Water Quality 2004 (Page 1)

MASC Newsletter 1 - Water Quality 2004

Ben Longstaff ·
1 January 2005

This is the first in a series of newsletters to be produced by the Monitoring and Analysis Subcommittee (MASC). MASC coordinates and supports the monitoring activities of the Chesapeake Bay Program (CBP). Newsletters produced by MASC will summarize current and significant issues relating to the health of Chesapeake Bay ecosystems, those factors that affect the health of the Bay, and the restoration effort.

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Modelling phytoplankton deposition to Chesapeake Bay sediments during winter-spring: interannual variability in relation to river flow

Hagy JD, Boynton WR, and Jasinski DA ·
2005

The often-rapid deposition of phytoplankton to sediments at the end of the spring phytoplankton bloom is an important component of benthic-pelagic coupling in temperate and high latitude estuaries and other aquatic systems. However, quantifying the flux is difficult, particularly in spatially heterogeneous environments.

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Organochlorine and heavy metal concentrations in blubber and liver tissue collected from Queensland (Australia) dugong (Dugong dugon) (Page 1)

Organochlorine and heavy metal concentrations in blubber and liver tissue collected from Queensland (Australia) dugong (Dugong dugon)

Haynes D, Carter S, Gaus C, Muller J, and Dennison WC ·
2005

Tissue samples of liver and blubber were salvaged from fifty-three dugong (Dugong dugon) carcasses stranded along the Queensland coast between 1996 and 2000. Liver tissue was analysed for a range of heavy metals and blubber samples were analysed for organochlorine compounds. Metal concentrations were similar in male and female animals and were generally highest in mature animals.

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Quantifying and evaluating ecosystem health: A case study from Moreton Bay, Australia (Page 1)

Quantifying and evaluating ecosystem health: A case study from Moreton Bay, Australia

Pantus FJ and Dennison WC ·
2005

As part of the program monitoring the ecosystem health of Moreton Bay, Queensland, Australia, we developed a means for assessing ecosystem health that allows quantitative evaluation and spatial representations of the assessments. The management objectives for achieving ecosystem health were grouped into ecosystem objectives, water quality objectives, and human health objectives.

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Seasonal and annual variability in the spatial patterns of plankton biomass in Chesapeake Bay

Roman M, Zhang X, McGilliard C, and Boicourt W ·
2005

We conducted high-resolution, underway sampling in April, July, and October for 6 yr (1995-2000) in the large estuary, Chesapeake Bay. This period included climatological extremes in freshwater inputs that strongly influenced both the overall stocks and spatial distribution of phytoplankton and zooplankton. Higher biomass of both phytoplankton and zooplankton occurred in springs, when freshwater input into Chesapeake Bay was above the average discharge.

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A water quality assessment of the Maryland Coastal Bays including nitrogen source identification using stable isotopes (Page 1)

A water quality assessment of the Maryland Coastal Bays including nitrogen source identification using stable isotopes

Jones AB, Carruthers TJ, Pantus F, Thomas JE, Saxby TA and Dennison, WC ·
2 November 2004

This data report details the results of an intensive sampling effort by the Integration and Application Network in the Maryland Coastal Bays. A spatially explicit Water Quality Index was developed from standard water quality analyses and a relatively new stable isotope technique.

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State of the Maryland Coastal Bays 2004 (Page 1)

State of the Maryland Coastal Bays 2004

Wazniak C, Hall M, Cain C, Wilson D, Jesien R, Thomas JE, Carruthers TJB and Dennison WC ·
16 August 2004

This report summarizes monitoring data collected over the past several years for water quality, aquatic living resources, and habitat categories. It utilizes conceptual diagrams for each reporting region to highlight the key ecosystem processes, biota and estuarine health problems.

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Where river meets sea: exploring Australia's estuaries

Turner L, Tracey D, Tilden J and Dennison WC ·
1 July 2004

This 288-page book utilizes conceptual diagrams (including symbols from the IAN symbol libraries) to describe the health, geography, science, management and ecological functions of Australia's 974 estuaries. Chapters on natural history, coastal science and management give an understanding of our vast network of pristine and heavily modified estuaries - from isolated tide-dominated estuaries in Australia's tropical north to those shaped by waves in southern, temperate waters.

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NFCC Consensus Statement on Integrating Marine Reserve Science and Fisheries Management (Page 1)

NFCC Consensus Statement on Integrating Marine Reserve Science and Fisheries Management

Boesch, D ·
7 June 2004

The National Fisheries Conservation Center convened the meeting (chaired by Dr. Don Boesch, president of the University of Maryland Center for Environmental Science) to bring together modelers, ecologists, fishermen, stock assessment scientists and other analysts to try to produce a more integrated theoretical basis for designing, managing and monitoring marine reserves as part of the fishery management system.

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Crassostrea ariakensis: Panacea or Pandora? (Page 1)

Crassostrea ariakensis: Panacea or Pandora?

Adrian Jones, Tracey Saxby ·
1 March 2004

This newsletter is based on research conducted by Dr Mark Luckenbach and a presentation he gave at the Chesapeake Bay Seminar Series in July 2003. The introduction of Crassostrea ariakensis into Chesapeake Bay has been proposed for both economic and ecological gain. Data exists suggesting that C. ariakensis grows significantly faster and is more resistant to the diseases that have devastated the native oyster.

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