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Juday, Chancey (ed.) / Transactions of the Wisconsin Academy of Sciences, Arts and Letters
volume XXI (1924)

Baker, Frank Collins
The fauna of the Lake Winnebago region,   pp. [109]-146 PDF (11.3 MB)


Page [109]


THE FAUNA OF THE LAKE WINNEBAGO REGION*
    A QUANTITATIVE AND QUALITATIVE SURVEY WITH SPECIAL
                 REFERENCE TO THE MOLLUSCA
                     FRANK COLLINS BAKER
  During the summer of 1920 (July and August) a somewhat de-
tailed survey was made of the Lake Winnebago region, including
Lake Winnebago, Lake Butte des Morts, the Fox River at Omro,
and the small swales and pools bordering the shores of these places.
The work was carried on under the auspices of the Wisconsin
Geological and Natural History Survey, by which the writer .was
commissioned to make a survey of the molluscan fauna of the State
preparatory to the completion of a monograph of the Mollusca.
The absence of any literature, excepting scattered records, con-
cerning the mollusk fauna of the Winnebago region led to its se-
lection as a profitable area for statistical study for comparison
with other lakes which have been similarly treated.
  Headquarters were established at the Wisconsin State Fish
----atchery:x at, Osk ,wer   oo   n  row boats were- 7npalae  -
the writer's disposal, as well as suitable laboratory facilities for
sorting and otherwise caring for the collections. Collections were
made at definite stations along the west shore of Winnebago Lake
from Asylum Bay to Long Point Island, a distance of about 12
miles. Shore material was also gathered at other places on the lake
shore. In Lake Butte des Morts, collections were made at places
covering the greater part of this body of water. Over 450 dredg-
ings were made and, in addition, mollusks were collected from many
places along the shore and in inland habitats. The dredgings were
made with an Ekman bottom sampler. The results shown in the
tables indicate the number of individuals per square meter of
bottom.
  The material upon which the study is based is preserved in the
Zoological Museum of the University of Wisconsin (Mollusca) and
  *Contribution from the Museum of Natural History, University of Illinois,
No. 32.


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