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首页> 外文期刊>Russian journal of marine biology >The Reproduction and Development of Brackish-Water Copepods That Were Fed Microalgae of Different Species
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The Reproduction and Development of Brackish-Water Copepods That Were Fed Microalgae of Different Species

机译:The Reproduction and Development of Brackish-Water Copepods That Were Fed Microalgae of Different Species

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摘要

The duration of development, survival rate, and reproductive characteristics of Calanipedaaquaedulcis (Krichagin, 1873) and Arctodiaptomus salinus (Daday, 1885) depending on a diet consisting ofmonospecific cultures of microalgae from three different taxonomic groups were studied in experimentalconditions. The highest survival rates were recorded for the copepod C. aquaedulcis that was fed the microalgaProrocentrum cordatum (Ostenfeld) J.D. Dodge, 1975. A. salinus showed the maximum survival rate when itwas fed the microalga Isochrysis galbana Parke, 1949. The duration of ontogeny in C. aquaedulcis was 14 dayswith each of the three diets. The shortest duration of development in A. salinus (18 days) was recorded whenit fed on Rhodomonas salina (Wislouch) Hill and Wetherbee, 1989. The percentage of hatching nauplii infemale C. aquaedulcis that were fed P. cordatum and I. galbana was 100%; however, when females were fedRh. salina, it decreased to 86%. The average daily fecundity per life cycle in female C. aquaedulcis was foundto be two times higher than that in A. salinus. The female A. salinus that received different diets showed significantdifferences in the average prosoma length and the diameter of spawned eggs; in C. aquaedulcis, theseparameters did not depend on the species of food.

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