Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If you need an accessible version of this item please contact JSTOR User Support

Reproductive Behavior and Spawning Microhabitat of the Flagfin Shiner Pteronotropis Signipinnis

Brett Albanese
The American Midland Naturalist
Vol. 143, No. 1 (Jan., 2000), pp. 84-93
Stable URL: http://www.jstor.org/stable/3082986
Page Count: 10
  • Get Access
  • Read Online (Free)
  • Cite this Item
If you need an accessible version of this item please contact JSTOR User Support
Reproductive Behavior and Spawning Microhabitat of the Flagfin Shiner Pteronotropis Signipinnis
Preview not available

Abstract

The reproductive behavior and spawning microhabitat of the flagfin shiner, Pteronotropis Signipinnis, was described from aquarium observations, instream observations and microhabitat specific seining collections. Based upon aquarium observations, P. Signipinnis is a broadcaster and exhibits a spawning clasp. Although spawning was never observed in nature, a high frequency of spawning related behavioral acts was observed in shallow, densely vegetated habitats ("vegetated riffles"). The spatial distribution of males and females with gonads in advanced stages of development was additional indirect evidence that vegetated riffles were an important microhabitat for reproduction. The physical characteristics of vegetated riffles may enhance the males' ability to clasp females, increase the survival of eggs and provide refuge from predation for spawning adults. Behavior related to foraging was frequently observed in "vegetated runs", indicating that P. Signipinnis relies upon different habitat types to complete its life cycle and meet its resource needs.

Page Thumbnails

  • Thumbnail: Page 
84
    84
  • Thumbnail: Page 
85
    85
  • Thumbnail: Page 
86
    86
  • Thumbnail: Page 
87
    87
  • Thumbnail: Page 
88
    88
  • Thumbnail: Page 
89
    89
  • Thumbnail: Page 
90
    90
  • Thumbnail: Page 
91
    91
  • Thumbnail: Page 
92
    92
  • Thumbnail: Page 
93
    93