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Primary productivity of angiosperm and macroalgae dominated habitats in a New England salt marsh: a comparative analysis

Estuarine, Coastal and Shelf Science

By:
, , , and
DOI: 10.1016/0272-7714(90)90075-3

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Abstract

Net primary productivity estimates were made for the major macrophyte dominated habitats of the Nauset Marsh system, Cape Cod, Massachusetts. Above-ground primary productivity of short form Spartina alterniflora, the dominant habitat of the system, was 664 g m-2 y-1. Productivity of the other dominant angiosperm (Zostera marina) was estimated to range from 444?987 g m-2 y-1. The marsh creekbank habitat was dominated by an intertidal zone of fucoid algae (Ascophyllum nodosum ecad. scorpioides, 1179 g m-2 y-1; Fucus vesiculosus, 426 g m-2 y-1), mixed intertidal filamentous algae (91 g m-2 y-1), and a subtidal zone of assorted macroalgae (68 g m-2 y-1). Intertidal mudflats were dominated by Cladophora gracilis, with net production ranging from 59?637 g m-2 y-1. These angiosperm and macrophyte and macrophyte dominated habitats produce over 3 ? 106 kg y-1 of biomass (1?2 ? 106 kg carbon y-1). Twenty-eight per cent (28%) of this carbon production is derived from the Zostera and macroalgae habitats. Although S. alterniflora is considered the major macrophyte primary producer in Nauset Marsh and other north temperate salt marshes, it is concluded that other habitats also contribute significantly to total system carbon production.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Primary productivity of angiosperm and macroalgae dominated habitats in a New England salt marsh: a comparative analysis
Series title:
Estuarine, Coastal and Shelf Science
DOI:
10.1016/0272-7714(90)90075-3
Volume
30
Issue:
1
Year Published:
1990
Language:
English
Contributing office(s):
Patuxent Wildlife Research Center
Description:
35-45
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Estuarine, Coastal and Shelf Science
First page:
35
Last page:
45
Number of Pages:
11