Standing stock and production of eelgrass (Zostera marina L. ) in Humboldt Bay, California
Measurements of the eelgrass standing stock in Humboldt Bay were conducted on seven occasions from June 1971 through August 1972. Values ranged from 1.4 x 10/sup 6/ kg dry wt. in April 1972 to 6.9 x 10/sup 6/ kg dry wt. in July 1972. South Bay eelgrass accounted for 78 to 91% of the total stock. The area supporting Zostera marina growth was 12.21 x 10/sup 6/ m/sup 2/. Densities ranged from 0.1 to 0.7 kg dry wt. per square meter with highest values recorded for South Bay beds. Eelgrass production was estimated from the seasonal increase in standing stock and published values for carbon content. Production for the April--July interval was 1.5 grams carbon per m/sup 2/ per day. Total eelgrass production for Humboldt Bay was 18.4 x 10/sup 6/ grams carbon per day. The eelgrass production measured during this interval was approximately equal to phytoplankton production measured over the same period.
- Research Organization:
- California Univ., Livermore (USA). Lawrence Livermore Lab.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6426209
- Report Number(s):
- UCRL-76987
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Aquatic-- Basic Studies-- (-1989)
54 ENVIRONMENTAL SCIENCES
BIOMASS
CALIFORNIA
DATA
DATA FORMS
ENERGY SOURCES
EXPERIMENTAL DATA
HUMBOLDT BAY
INFORMATION
ISOLATED VALUES
NORTH AMERICA
NUMERICAL DATA
PACIFIC OCEAN
PLANTS
POPULATION DENSITY
POPULATION DYNAMICS
PRODUCTIVITY
RENEWABLE ENERGY SOURCES
SEAS
SEASONAL VARIATIONS
SEAWEEDS
SURFACE WATERS
USA
VARIATIONS
WESTERN REGION