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Reproductive Modes Of The Least Chub (Iotichthys Phlegethontis - Cope), Marianne Crawford
Reproductive Modes Of The Least Chub (Iotichthys Phlegethontis - Cope), Marianne Crawford
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The reproductive biology of the least chub Iotichthys phlegethontis (Cope) was studied from June 1976 to March 1978. Fish from both field and laboratory populations of the Leland Harris Spring Complex, Juab Co., Utah were utilized in the study. Reproduction in 1977 occurred from April to July in the field population and from April through August in the laboratory population.
Reproduction was determined from gross examination and weight measurements of testes and ovaries, breeding coloration in males and diameter measurements of ova.
Males and females matured at about the same size, 28 to 30 mm TL. The number of mature …