Back to Search Start Over

Potential for Bias in Using Hybrids Between Common Carp (Cyprinus carpio) and Goldfish (Carassius auratus) in Endocrine Studies: A First Report of Hybrids in Lake Mead, Nevada, U.S.A

Potential for Bias in Using Hybrids Between Common Carp (Cyprinus carpio) and Goldfish (Carassius auratus) in Endocrine Studies: A First Report of Hybrids in Lake Mead, Nevada, U.S.A

Authors :
Erik Orsak
Reynaldo Patiño
Steven L. Goodbred
Prakash Sharma
Shane Ruessler
Source :
The American Midland Naturalist. 169:426-431
Publication Year :
2013
Publisher :
University of Notre Dame, 2013.

Abstract

During a 2008 study to assess endocrine and reproductive health of common carp (Cyprinus carpio) in Lake Mead, Nevada (U.S.A.) we identified two fish, one male and one female, as hybrids with goldfish (Carassius auratus) based on morphology, lateral line scale count, and lack of anterior barbels. Gross examination of the female hybrid ovaries indicated presence of vitellogenic ovarian follicles; whereas histological evaluation of the male hybrid testes showed lobule-like structures with open lumens but without germ cells, suggesting it was sterile. Because common carp/goldfish hybrids are more susceptible to gonadal tumors and may have different endocrine profiles than common carp, researchers using common carp as a model for endocrine/reproductive studies should be aware of the possible presence of hybrids.

Details

ISSN :
19384238 and 00030031
Volume :
169
Database :
OpenAIRE
Journal :
The American Midland Naturalist
Accession number :
edsair.doi...........a193ebe9282153801a33837ec4cc425b
Full Text :
https://doi.org/10.1674/0003-0031-169.2.426