Anomalous spawning of smallmouth bass in Nebish Lake, Wisconsin: Implications for early spawning and over-winter survival

Journal of Freshwater Ecology
By:  and 

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Abstract

We observed that the smallmouth bass (Micropterus dolomieu) population in Nebish Lake, Wisconsin spawned twice-once during the traditional spring period and then again in summer, well beyond the typical spawning season for north-temperate lakes. We documented this anomalous spawning behavior and compared the characteristics of smallmouth bass nests built during the two distinct spawning seasons. Smallmouth bass built 463 nests (110.2 nests/km shoreline) as water temperature was rising toward 20°C. During the summer spawning period, 24 nests (5.7 nests/km shoreline) were constructed between 11 August and 29 August as water temperature was falling. Nests built in summer were significantly farther from shore, in deeper water, farther from cover, larger in diameter, and built by larger males than in the spring.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Anomalous spawning of smallmouth bass in Nebish Lake, Wisconsin: Implications for early spawning and over-winter survival
Series title Journal of Freshwater Ecology
DOI 10.1080/02705060.2010.9665066
Volume 25
Issue 2
Year Published 2010
Language English
Publisher Taylor & Francis
Contributing office(s) Coop Res Unit Leetown
Description 9 p.
First page 169
Last page 177
Country United States
State Wisconsin
Other Geospatial Nebish Lake