Reproductive biology and early life history of fishes in the by Robert Wallus;Bruce L Yeager;Thomas P Simon;Tennessee Valley

By Robert Wallus;Bruce L Yeager;Thomas P Simon;Tennessee Valley Authority. Aquatic Biology Department.;Tennessee Valley Authority. Office of Power.;All authors

content material: v. 1. Acipenseridae via Esocidae --
v. 2. Catostomidae. --
v. three. Catfish and Madtoms --
v. four. Percidae --
Perch, Pikeperch, and Darters --
v. five. Aphredoderidae via Sciaenidae., Moronidae, and Sciaenidae --
v. 6. Elassomatidae and Centrarchidae.

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Additional info for Reproductive biology and early life history of fishes in the Ohio River drainage Volume 4

Sample text

The Ammocrypta are not recognized as a subgenus of Etheostoma (see generic account for Ammocrypta for additional information) and therefore four genera of darter are recognized in this classification. The recognized genera include Crystallaria, Percina, Ammocrypta, and Etheostoma. Simon et al. (1992) showed that Crystallaria was considered the most plesiomorphic of the darter genera, using a hypothetical proto-percid ancestor and an outgroup of Percina (P. caprodes, P. macrolepida, and P. , E. longimanum, E.

This action has not been widely accepted by many southeastern systematists and has resulted in the recognition of two classifications for the snubnose darters. Bailey and Etnier (1988) recognized Ulocentra as a monophyletic sister group of subgenus Etheostoma and suggested that several of the characters used to define Nanostoma are convergent with Etheostoma. The additional study of genetic, osteological, and ontogenetic data sets will resolve the differences between these two classifications. Ontogenetic evaluation of darter subgenera began in the Mississippi River drainage (Simon, 1985); however, darter systematic relationships could not be completely determined due to a lack of data for other drainages and species.

Kanawhae, E. osburni, E. euzonum (two subspecies), and E. tetrazonum. , 1984). All of the species possess relatively plesiomorphic character traits, possessing high meristic counts; postanal myomeres radiating mid-laterally; tapering yolk sacs; usually spherical eyes (with the exception of E. histrio); and most species are either egg buriers or egg attachers. Three species groups can be recognized based on ontogenetic development. The subgenus Poecilichthys contains previously recognized members of the saddleback darters of Etheostoma: E.

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