Nesting Ecology and Behavior of Hornyhead Chub Nocomis biguttatus, a Keystone Species in Allequash Creek, Wisconsin

Reproductive ecology of Nocomis biguttatus (Pisces: Cyprinidae) was studied in Allequash Creek, N-central Wisconsin. Nocomis biguttatus built gravel nests in which it and two other cyprinids, Notropis cornutus and N. rubellus, spawned. Construction of nest mounds and spawning activity of hornyhead c...

Full description

Saved in:
Bibliographic Details
Published in:The American midland naturalist 1990-07, Vol.124 (1), p.46-56
Main Author: Vives, Stephen P.
Format: Article
Language:English
Subjects:
Animal behavior
Animal nesting
Bird nesting
Creeks
Eggs
Female animals
Fish
Freshwater
Freshwater fishes
Gravel
Male animals
Nocomis biguttatus
Streams
Citations: Items that cite this one
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Reproductive ecology of Nocomis biguttatus (Pisces: Cyprinidae) was studied in Allequash Creek, N-central Wisconsin. Nocomis biguttatus built gravel nests in which it and two other cyprinids, Notropis cornutus and N. rubellus, spawned. Construction of nest mounds and spawning activity of hornyhead chubs was mostly during late May and early June in 1986 and 1987. Nests were constructed in areas with significantly greater depths and faster currents than were generally available. Nests averaged ca. 50 cm long, 40 cm wide, and 6.4 cm high and approximately 70% were built over sand and 90% were constructed in open areas. Nest-building and spawning behavior are described from observations of several males. The spawning act was typically a sequence of repeated spawnings between the resident male and a single female, within a spawning cup, followed by burial of eggs with stones carried into the cup by the male. Relationships of the hornyhead chub to N. cornutus and N. rubellus are described and discussed.
ISSN:0003-0031
1938-4238
DOI:10.2307/2426078