Effects of cultural conditions on life history characteristics of the freshwater rotifer Brachionus calyciflorus

• Published in: International journal of aquatic biology Vol. 11; no. 2; pp. 104 - 114
• Main Authors: Mau, Trinh-Dang, Quang-Hung, Duong
• Format: Journal Article
• Language: English
• Published: Karaj Iranian Society of Ichthyology 01.04.2023
• Subjects: Algae; Aquaculture; Biology; Biomonitoring; Brachionus calyciflorus; Cell culture; Culture; Ecotoxicology; Eggs; Experiments; Fecundity; Females; Food; Foods; Freshwater; Inland water environment; Juveniles; Laboratories; Life history; Life span; Live feeds; Longevity; Males; Marine invertebrates; Mass culture; Morphology; Offspring; pH effects; Polyculture (aquaculture); Prolongation; Temperature; Temperature effects; Variance analysis
• ISSN: 2383-0956; 2322-5270
• DOI: 10.22034/ijab.v11i2.1659

The effects of temperature, food concentration, and pH conditions on the life history characteristics of the freshwater rotifer, Brachionus calyciflorus, were investigated. The culture temperature (20, 25, and 30°C) had a significant relationship with life history parameters. At lower temperatures, there was a prolongation of the mean lifespan and juvenile period. The optimal temperature for the fecundity of this species was 25°C with an average quantity of 23.67±6.99 offspring female-1 across the entire lifespan of 6.7 days. No significant difference was found between the mean lifespan at different algae densities but the maximum fecundity (25.75±6.99 offspring female-1) was obtained at an algae density of 10x106 cells.ml-1. Brachionus calyciflorus could tolerate a broad range of pH (4-10) but preferred pH from 6-10. These results are critical for potential applications of this species in ecotoxicology, biomonitoring as well as in mass culture as live food for larval rearing in aquaculture.