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Reproduction data on dionda episcopa from fessenden spring texas usa



Reproduction data on dionda episcopa from fessenden spring texas usa



Texas Journal of Science 37(4): 321-328



The roundnose minnow, Dinoda episcopa, is primarily restricted to clear spring-fed waters that have slight temperature variations. Ova diameters, numbers of seperated ova, and gonadosomatic index indicate that spawning occurred from January thru August with a peak occurring in April and May and a second peak in July and August. Spawining peaks occurred when the number of daylight hours were approximately the same (14 hours). There was a signficant positive correlation between the number of separated mature ova and the standard length of the fish. D. episcopa showed no significant deviation from a one-to-one sex ratio.

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