Female reproductive characteristics of three species in the Orconectes subgenus Trisellescens and comparisons to other Orconectes species

  • Author(s): Adams, S. B.
  • Date: 2008
  • Source: Freshwater Crayfish 16:147-153.

Abstract

In streams of Mississippi and southwest Tennessee, Orconectes females with eggs or hatchlings are not commonly encountered while sampling. I report on fecundity, egg size, and aspects of reproductive timing for small samples of female Orconectes chickasawae, Orconectes etnieri, and Orconectes jonesi carrying eggs or hatchlings and discuss the results in the context of the subgenus and genus. Ovigerous O. jonesi females, collected in March, had the fewest eggs of the three species. Ovigerous O. chickasawae and O. etnieri were collected in March and April, with fecundity not significantly different between the two species. Orconectes etnieri had the largest eggs of the three species. Results are compared to data for other species within the subgenus and genus.

  • Citation: Adams, S. B. 2008. Female reproductive characteristics of three species in the Orconectes subgenus Trisellescens and comparisons to other Orconectes species. Freshwater Crayfish 16:147-153.

Requesting Print Publications

Publication requests are subject to availability. Fiscal responsibility limits the hardcopies of publications we produce and distribute. Electronic versions of publications may be downloaded, distributed and printed.

Please make any requests at pubrequest@fs.fed.us.

Publication Notes

  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
  • Our online publications are scanned and captured using Adobe Acrobat. During the capture process some typographical errors may occur. Please contact the SRS webmaster if you notice any errors which make this publication unusable.
  • To view this article, download the latest version of Adobe Acrobat Reader.