Hybridization in Umbridae in the Hudson River, New York, with Designation of Neotypes for Umbra limi and Umbra pygmaea

Title Hybridization in Umbridae in the Hudson River, New York, with Designation of Neotypes for Umbra limi and Umbra pygmaea
Publication Type Journal Article
Year of Publication 2006
Authors Schmidt, R., Daniels, R.
Keywords Central Mudminnow, Champlain Canal, Eastern Mudminnow, Erie Canal, fish dispersal, James DeKay, Jared Kirtland, type locality, zoogeography
Journal Zootaxa
Volume 1113
Pagination 1-20
Abstract

We document the occurrence of a natural hybrid between the Eastern Mudminnow, Umbra
pygmaea (DeKay 1842) and the Central Mudminnow, U. limi (Kirtland 1840). Hybrid individuals
were collected in a supratidal pool in a fresh-tidal marsh in the Hudson River, New York. ANOVA,
ANCOVA, principal components analysis, and discriminant function analysis of meristics and
morphometrics showed that the hybrids were distinguishable from the parental species and were
generally intermediate between them. The tidal Hudson River is the only place these species are
sympatric, and hybridization must have occurred within the last several decades. We designate
neotypes for Umbra pygmaea and Umbra limi.
URL http://www.mapress.com/zootaxa/2006f/zt01113p020.pdf