Record Display for the EPA National Library Catalog

RECORD NUMBER: 1 OF 2

OLS Field Name OLS Field Data
Main Title Distribution, Composition and Biomass of the Crustacean Zooplankton Population in Western Lake Superior.
Author Conwa, John B. ; Ruschmeye, Orlando R. ; Olso, Theodore A. ; Odlau, Theron O. ;
CORP Author Minnesota Univ., Minneapolis. Water Resources Research Center.
Year Published 1973
Report Number WRRC-Bull-63; OWRR-A-022-MINN; 01109,; A-022-MINN(3)
Stock Number PB-225 137
Additional Subjects ( Zooplankton ; Lake Superior) ; Biomass ; Distribution(Property) ; Crustacea ; Sampling ; Productivity ; Phytoplankton ; Cladocera ; Aquatic biology ; Statistical data ; Alona guttata ; Holopedium gibberum
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB-225 137 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 171p
Abstract
Although data were collected for two years, 1970 and 1971, the major portion of this research was carried out the second year. This research took place in western Lake Superior and most of the data were collected at two stations, Larsmont and Stony Point, which were twenty miles northeast of Duluth. The major purposes were to study the productivity and the vertical, seasonal and horizontal distribution of the crustacean zooplankton population in western Lake Superior. A limited study of the biology of the copepod, Limnocalanus macrurus, was also conducted. Productivity differences were found between the various sites and stations. These differences point to the lack of homogeneity in the horizontal distribution of the crustacean zooplankton population and support the phenomenon of 'zooplankton patchiness'. Productivity levels at the Little Marais and Sugar Loaf Cove area were from one-third to two-thirds of those at Larsmont and Stony Point. The Larsmont station was slightly more productive than Stony Point.