L-Lake habitat formers: L-Lake/Steel Creek Biological Monitoring Program, January 1986--December 1987

Technical Report · Tue Mar 01 04:00:00 EST 1988

OSTI ID:6528782

Firth, P

The purpose of this study was to document the effects of L-Reactor operations on L-Lake habitat structure and shoreline plant community development from January 1986--December 1987. The near-shore regions of L-Lake were characterized by shallow, gently-sloping littoral zones. Aquatic plants colonized (and were planted in) the littoral zones of L-Lake in 1987, but areal coverage in the sampled plots were very low (< 2.5% cover). All of the plant species mapped were emergent forms, and several of the plant taxa were obligate or facultative wetland species characteristic of southeastern lakes and wetlands. Potential animal habitat provided by solid substrates such as wood appeared to be sparse in all of the littoral areas mapped in L-Lake. Cover for fish was very poor in 1986 and only slightly better in 1987. The plant assemblage on the shoreline of L-Lake included more than 197 species representing 64 families. This assemblage was dominated by herbaceous species, particularly forbs. Diversity increased between 1986 and 1987. The peak above-ground living biomass occurred in summer at almost all lake sites. Above-ground standing crop was generally greater in Regions 4 and 5 than in Regions 6, 7, or 8.

• Research Organization: Savannah River Lab., Aiken, SC (USA); Environmental and Chemical Sciences, Inc., Aiken, SC (USA)
• DOE Contract Number: AC09-76SR00001
• OSTI ID: 6528782
• Report Number(s): DPST-88-646; ECS-SR-62; ON: DE89007957
• Country of Publication: United States
• Language: English

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AQUATIC ECOSYSTEMS
BASELINE ECOLOGY
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GROWTH
HABITAT
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POPULATION DYNAMICS
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SEASONAL VARIATIONS
SPECIES DIVERSITY
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US DOE
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WASTES
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