Analysis reveals significant variability in biometric features of brine shrimp cysts in the Caspian Sea, suggesting implications for aquaculture.
Cysts (resting stages) of the brine shrimp are used as live starter feed in aquaculture for breeding shrimp and valuable fish species. The data on cysts of population – (diameter of hydrated cysts, diameter of decapsulated cysts (embryos), and chorion thickness), sampled in the Kara-Bogaz-Gol Bay of the Caspian Sea, were analyzed. Significant intrapopulation variability in the cyst chorion thickness was established, as well as insignificant variability in the diameter of hydrated cysts and diameter embryos. The absolute values of the diameter of hydrated cysts were in the range of 226.0–288.6 μm, the mean values for the samples – 234.0–265.4 μm; the absolute values of the diameter of decapsulated cysts were in the range of 209.7–277.5 μm, the mean values for samples – 228.7–243.5 μm; the absolute values of the cyst chorion thickness were in the range of 0.7–27.7 μm, the mean values for samples –5.7–11.5 μm. It is shown that there is a strong positive reliable relationship between salinity and the studied biometric features. Significant variability in the diameter of hydrated cysts and the chorion thickness indicates that these morphological features cannot serve as reliable indicators for identifying this population; a smaller mean embryo diameter is a feature that distinguishes the Kara-Bogaz-Gol population of from other parthenogenetic populations. The range of known values of the cyst chorion thickness of parthenogenetic populations has been expanded to the larger side.
No takes yet. Share an insight, caveat, or question.
S.A. Bulatov (2025) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: