Phytoplankton and physical-chemical conditions in selected rivers and the coastal zone of Lake Michigan, 1972

Technical Report · Tue Jan 01 04:00:00 EST 1980

DOI:https://doi.org/10.2172/5008748· OSTI ID:5008748

Schelske, C L; Feldt, L E; Simmons, M S

A very large data set was obtained on the nearshore environment of Lake Michigan during 1972. The data set is probably unique in that samples were collected and analyzed for a number of physical-chemical parameters and for phytoplankton standing crop and species composition. Phytoplankton identified during the study totaled 431 taxa of which 306 were diatoms, which serves to illustrate the magnitude of available data. Results are presented for eleven different transects sampled in April and for three of these transects which were sampled in September. In addition, transects for the St. Joseph, Kalamazoo, and Grand Rivers were sampled four or five times and each of these rivers were sampled from seven to eleven times in July. Data collected with depth presented in this report include water temperature. Secchi disc transparency, pH, specific conductance, dissolved reactive silica, nitrate nitrogen, and total phosphorus as physical-chemical variables. On transects samples with depth were obtained at stations 0, .2, .8, 1.6, 3.2, 6.4, 13, 26, and 52 km from shore, although the stations from 13 to 52 km were not sampled on every transect. Data related to phytoplankton include species composition and abundance, species diversity, chlorophyll a, and rates of carbon fixation. All these data were obtained only at 2 meters.

• Research Organization: Michigan Univ., Ann Arbor (USA). Great Lakes Research Div.
• DOE Contract Number: AS02-76EV02003
• OSTI ID: 5008748
• Report Number(s): COO-2003-36
• Country of Publication: United States
• Language: English

Related Subjects

520100* -- Environment
Aquatic-- Basic Studies-- (-1989)
520200 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ABUNDANCE
AQUATIC ORGANISMS
CARBOXYLIC ACIDS
CHALCOGENIDES
CHLOROPHYLL
DATA
DATA COMPILATION
ELEMENTS
GREAT LAKES
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
INFORMATION
LAKE MICHIGAN
LAKES
MINERALS
MONITORING
NITRATES
NITROGEN
NITROGEN COMPOUNDS
NONMETALS
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PH VALUE
PHOSPHORUS
PHYTOCHROMES
PHYTOPLANKTON
PIGMENTS
PLANKTON
PORPHYRINS
SAMPLING
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SPECIES DIVERSITY
SURFACE WATERS
TEMPERATURE MEASUREMENT