Production, Nutrition, and Ecological Health of the Wells Salt Marshes

Short, Frederick T.

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Production, Nutrition, and Ecological Health of the Wells Salt Marshes

1988
By Short, Frederick T.
Series: NOAA technical memorandum NOS MEMD ; 16

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Personal Author:

Short, Frederick T.
Corporate Authors:

United States. National Ocean Service. Marine and Estuarine Management Division. ; United States. Office of Ocean and Coastal Resource Management. ; National Marine Sanctuary Program (U.S.)

United States. National Ocean Service. Marine and Estuarine Management Division. ; United States. Office of Ocean and Coastal Resource Management. ; National Marine Sanctuary Program (U.S.) Less -
NOAA Program & Office:

NOS (National Ocean Service)
Description:

Salt marshes are a valuable and biologically productive resource. This study provides baseline information quantifying the health and productivity of two marshes in the Wells National Estuarine Research Reserve. The little River and Drakes Island marshes were analyzed to provide a comparison of two adjacent marshes within the Reserve. Marsh productivity was measured both in terms of biomass and the nutritional value of the plant tissue. Both vegetative and reproductive tissue were analyzed for carbon, nitrogen and phosphorus content. Reproductive tissue had significantly higher nutritional value. The Little River marsh, although not impacted by human activity, is also not characteristic of a typical New England high salt marsh because of the stress induced by its proximity to the ocean. There are many shallow pannes and ponds which are caused by wracks of dead vegetation, transport of sand across the barrier island, and ice scouring. Marsh vegetation consists of stands of mixed species composition, instead of the stands of single species characteristic of a fully developed salt marsh. Marsh surface microtopography affects plant species composition which directly correlates with marsh surface elevation. The Drakes Island marsh has been altered from a salt marsh to a brackish-water marsh by a tidal dam restriction at Drakes Island Road. The plant composition indicates a productive brackish-water marsh. However, the marsh is being lost as it evolves into an upland community with the invasion of terrestrial plant species. In this report, I propose a definition of marsh health and show that niether the Little River marsh nor the Drakes Island marsh is a healthy salt marsh based on my definition.
Keywords:

[+]

Estuarine Area Conservation Research Salt Marsh Ecology
Series:

NOAA technical memorandum NOS MEMD ; 16
Document Type:

Technical Memorandum
Funding:

Grant no. NA86AA-D-CZ032
Place as Subject:

Wells National Estuarine Research Reserve ; Maine ; Atlantic Coast (Me.)

Wells National Estuarine Research Reserve ; Maine ; Atlantic Coast (Me.) Less -
Rights Information:

Public Domain
Compliance:

Library
Main Document Checksum:

[+]

urn:sha256:eb48e53fa09b1db757f1c65395e943c5a5e1fd22a4e1f3faf1f4da8515d13d83
Download URL:

https://repository.library.noaa.gov/view/noaa/26719/noaa_26719_DS1.pdf
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Production, Nutrition, and Ecological Health of the Wells Salt Marshes

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