Short Communication: The lifecycle of Neocaridina denticulata and N. palmata in aquariums

Abstract

Abstract. Mahmoud HHA, Sastranegara MH, Kusmintarsih ES. 2020. Short Communication: The lifecycle of Neocaridina denticulata and N. palmata in aquariums. Biodiversitas 21: 2396-2402. The study on the life cycle of Neocaridina spp. is important because it plays a major role in the economy and trade between countries. However, there is a lack of sufficient studies on this particular topic. One of the factors that influence Neocaridina spp. life production is its life cycle and the associated water parameters. The objectives of this study were to conduct, observe, and record the life cycle of Neocaridina denticulata and N. palmata and the associated with water parameters (temperature, pH, ammonia, nitrite, and oxygen) in the aquarium. The results showed that there was no difference in the life cycle stages between the two shrimp species. Both species reached the first sexual maturity stage of the life cycle at 75 days, with the maximum body length of the mature shrimp ranging from 2.30-3.00 cm. The eggs became larvae in 15 days, larvae reached the juvenile stage after 60 days, and the juvenile became mature in 15 days. The number of eggs was influenced by the body size of the female shrimps; smaller females produced fewer eggs. Optimal water quality varies by species and must be monitored to ensure growth and survival. The temperature range in this study was 25-28°C and the pH was 6.5-8.0. The ammonia level was in the range between 1.21 and1.72 mg/L, the nitrate was between 0.06 and 7.91 mg/L, and the oxygen was around 5.5-7.9 mg/L. All of the water quality parameters in this study are within the acceptable range for Neocardina cultivation.

Early Development and Enzyme Activity in Japanese Freshwater Shrimp, Neocaridina denticulata sinensis (Kemp, 1918)

“…The recorded levels of ammonia and nitrate were less than 0.2 and 0.1 respectively, indicating low and harmless levels for shrimp, thereby not impeding the survival and growth of N. denticulata. These results align closely with those reported by Ganesh (2015) and Mahmoud et al (2020), who found that N. denticulata thrived in aquariums with ammonia and nitrate levels of 1.6mg/L. The experiment-maintained water temperatures within the range of 16.9 -19.1˚C.…”

“…The larvae exhibited consistent growth and weight across the duration of the study. This uniformity could be attributed to various factors, including the quality of feed and water, among other variables (Nur and Christianus, 2013;Tropea et al, 2015;Mahmoud et al, 2020). The high standard deviation in growth and weight shown in Fig.…”

“…This suggests that N. denticulata can tolerate a variety of water temperatures. Previous studies have shown this species to exhibit even greater growth and survival rates in temperature ranges of 25-28˚C (Nur and Christianus, 2013; Ganesh, 2015; Mahmoud et al, 2020). Water temperature plays a crucial role in the life cycles of all aquatic organisms as it affects metabolism, growth, and the solubility of gases such as oxygen and carbon dioxide in water.…”

“…The study also considered several water parameters. These parameters are critical when culturing N. denticulata as they can in uence the survival and growth of this species (Nur and Christianus, 2013;Mahmoud et al, 2020). Parameters recorded throughout the duration of the experiment are shown in Table 2.…”

“…Parameters recorded throughout the duration of the experiment are shown in Table 2. Dissolved oxygen was one parameter monitored daily due to its essential role in life-sustaining processes like the combustion of food, and facilitating activities such as swimming, growth, and reproduction (Tropea et al, 2015;Mahmoud et al, 2020). The optimal dissolved oxygen parameters for N. denticulata range from 4 -9 mg/L (Nur and Christianus, 2013; Suen and Gillett-Kaufman, 2020.; Mahmoud et al, 2020), a range that was consistently maintained throughout the experiment.…”