Gammarus aequicauda (Amphipoda) and Moina salina (Cladocera) are dominant species and promising objects for aquaculture in hypersaline lakes. In the Crimean hypersaline lake Moynaki, population dynamics of their abundance was studied and experiments on feeding were also done. In 2018 and 2019, the average concentrations of G. aequicauda and M. salina differed between the thickets of sea grass Ruppia and the areas without Ruppia. The concentration of G. aequicauda in the thickets was on average from 52 to 126 times higher than in the Ruppia‐free areas. Moina demonstrated the opposite trend. There was a significant negative correlation between the abundances of these species in the Ruppia thickets (R = −0.746, p = .005). The experimental results on trophic relation showed that the amount of Moina eaten by one G. aequicauda varied from 0.04 to 9.80 ind./hr and depended on the average Moina concentration. Calculation showed that the gammarid population consumed about 1.0%–1.5% of available preys per day. Gammarids were able to graze up to 60%–65% of the Moina population in 10 days. To develop integrated multi‐trophic aquaculture in saline/hypersaline waters, character of ‘gammarus–moina’ trophic relation and the biological peculiarities of these species must be taken into account.

中文翻译：

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克里米亚半岛咸水区的Gammarus aequicauda和Moina salina：营养关系的新实验和现场数据

Gammarus aequicauda（Amphipoda）和Moina salina（Cladocera）是高盐湖水域养殖的主要物种和有希望的对象。在克里米亚半岛的高盐湖Moynaki，研究了其丰富度的种群动态，并进行了饲养实验。在2018年和2019年的平均浓度G. aequicauda和M.藻海草灌丛之间差异川蔓和地区没有川蔓。灌木丛中马鞭草的浓度平均比无鸦片地区高52到126倍。莫伊纳表现出相反的趋势。在Ruppia灌木丛中，这些物种的丰度之间存在显着的负相关（R  = -0.746，p  = .005）。营养关系的实验结果表明，一种G. aequicauda食用的Moina量在0.04至9.80 ind./hr之间变化，并取决于平均Moina浓度。计算结果表明，γ-内酰胺类种群每天消耗约1.0％–1.5％的可用猎物。伽马里德族能够吃草高达Moina的60％–65％人口在10天之内。为了在盐水/高盐度海水中发展综合的多营养水产养殖，必须考虑“γ-moina”营养关系的特征以及这些物种的生物学特性。