Documentation of a mass emergence of Hexagenia mayflies from the Upper Mississippi River

Authors

Cal R. Fremling, Winona State University

Files

Description

Article written by Calvin R. Fremling regarding a specific mayfly emergence on July 8, 1966 at Winona, Minnesota. Includes locations around the city such as Levee Park (emergence resulted in a shutdown of carnival equipment operating for Steamboat Days) and the John A. Latsch Wagon Bridge. Figure 1 shows a heavy swarm of mayflies covering the bridge and the author's car. Summary: "This report documents a mass Hexagenia mayfly emergence from the Upper Mississippi River, so that others may know of the magnitude of the phenomenon if Hexagenia populations are further reduced by pollution along the Upper Mississippi River." Fremling is credited as: "Winona State College, Winona, Minnesota." Article reprinted from Transactions of the American Fisheries Society, volume 97, number 3, 19 July 1968. 5 pages. Part of the Cal R. Fremling Collection.

Publication Date

1968

Item Type

Book

Publisher

Library

City

Winona, Minnesota

Keywords

Biologists; Mayflies; Winona; Upper Mississippi River; Winona, Minnesota

Department

Special Collections-Library

Notes

1968-07-19

Recommended Citation

Fremling, Cal R., "Documentation of a mass emergence of Hexagenia mayflies from the Upper Mississippi River" (1968). Cal Fremling Papers. 22.
https://openriver.winona.edu/calfremlingpapers/22

Rights Management

Requests to reproduce this image must be granted by the Winona County Historical Society.

Contributing Institution

Winona County History Center

Master File Format

TIFF

Fiscal Sponsor

This project has been financed in part with funds provided by the State of Minnesota from the Arts and Cultural Heritage Fund through the Minnesota Historical Society.

Scanning Responsibility

Northern Micrographics

Date Digital

2019-06-24 00:00

Metadata Creation Responsibility

Anna Gaffey

Unique Identifier

2011.003.0121