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首页> 外文期刊>CRUSTACEANA >REPRODUCTIVE STAGES OF THE PONTO-CASPIAN AMPHIPOD, PONTOGAMMARUS MAEOTICUS (SOWINSKY, 1894) (AMPHIPODA, PONTOGAMMARIDAE)
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REPRODUCTIVE STAGES OF THE PONTO-CASPIAN AMPHIPOD, PONTOGAMMARUS MAEOTICUS (SOWINSKY, 1894) (AMPHIPODA, PONTOGAMMARIDAE)

机译：蓬塔卡巴斯两栖动物的生殖阶段，蓬托马斯巨蜥（SOWINSKY，1894）（蓬皮达，蓬托马里达利）

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摘要

The series of reproductive events in various species of Gammaridae can be described as precopula, copula, egg deposition and fertilization, hatching of the newborn, and the presence of young individuals. The stages of Pontogammarus maeoticus were explored in the laboratory. Amphipod samples were collected on the southwestern coast of the Caspian Sea (Jefrood Beach). The animals were transferred to the laboratory along with sediment from their habitat. The samples were maintained under controlled laboratory conditions at a temperature of 25 ± 1°C, a salinity of 9 ± 0.5%o and in a 12:12 h light/dark regime for about six weeks. In this study, we examined the species' reproductive sequence. The average time spent in the precopula stage was approx. 2.6 ± 0.91 days and embryonic development took about 8.5 ± 1.1 days. Fecundity was estimated as the number of fertilized eggs existing in the brood pouch of each female (average 14.12). The average length of females was recorded as 12.21 mm. The first precopula was observed about 40 days after hatching. The species has a relatively short reproductive cycle and the generations are able to reproduce after a short period (about 40 days). Hence, this species seems to be a good choice for potential use in aquaculture.
机译：在伽玛科的各种物种中的一系列生殖事件可描述为鸡足前，鸡足，卵子的沉积和受精，新生儿的孵化以及年轻人的存在。在实验室中探索了庞氏哺乳动物的各个阶段。在里海西南海岸（杰弗罗德海滩）上收集了两栖类动物的样本。这些动物与来自其栖息地的沉积物一起被转移到实验室。样品在受控的实验室条件下，温度为25±1°C，盐度为9±0.5％的条件下以及在12:12 h的明暗环境下保持约六周。在这项研究中，我们检查了物种的繁殖序列。足前期的平均时间约为。 2.6±0.91天，胚胎发育约8.5±1.1天。产卵率估计为每个雌性育雏袋中存在的受精卵数量（平均14.12）。雌性的平均长度记录为12.21mm。孵化约40天后观察到第一个前足底。该物种的繁殖周期相对较短，几代人都可以在短时期（约40天）后繁殖。因此，该物种似乎是潜在用于水产养殖的好选择。

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