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Life histories and abundance of crustacean zooplankton in the outlet of Lake Superior, 1971-72

Journal of the Fisheries Research Board of Canada

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Abstract

In sampling throughout a year, at about 3-wk intervals, of the crustacean zooplankton discharged from Lake Superior through the St. Marys River, 30 species were collected, including three not previously recorded for the lake: the copepod Cyclops strenuus, and the cladocerans Alona costata and Alonella acutirostris. Five copepods, Cyclops bicuspidatus thomasi, Diaptomus ashlandi, D. sicilis, Limnocalanus macrurus, and Senecella calanoides were present in the plankton throughout the year while three other copepods, Diaptomus minutus, Epischura lacustris, and Mesocyclops edax, along with all cladocerans, were present only during summer and fall. Five species of copepods, Diaptomus sicilis, D. minutus, Limnocalanus macrurus, Senecella calanoides, and Epischura lacustris produced a single generation annually; three other copepods and all cladocerans produced two or more generations. All species breed 1-3 mo later in Lake Superior than in lakes Michigan and Erie.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Life histories and abundance of crustacean zooplankton in the outlet of Lake Superior, 1971-72
Series title:
Journal of the Fisheries Research Board of Canada
Volume
32
Issue:
4
Year Published:
1975
Language:
English
Contributing office(s):
Great Lakes Science Center
Description:
p. 461-470
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of the Fisheries Research Board of Canada
First page:
461
Last page:
470