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All Journal Biosaintifika: Journal of Biology & Biology Education Biodiversitas Journal of Biological Diversity
HANAN HASSAN ALSHEIKH MAHMOUD
Department of Fisheries Science, College of Natural Resources and Environmental Studies, University of Bahri. Khartoum, Sudan
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Short Communication: The lifecycle of Neocaridina denticulata and N. palmata in aquariums HANAN HASSAN ALSHEIKH MAHMOUD; MOH. HUSEIN SASTRANEGARA; Endang Srimurni K Kusmintarsih
Biodiversitas Journal of Biological Diversity Vol. 21 No. 6 (2020)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d210609

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.
Growth and Exploitation Rate of Mystus nigriceps Siti Rukayah; Windiarini Lestari; Agus Nuryanto; Hanan Hassan Alsheikh Mahmoud
Biosaintifika: Journal of Biology & Biology Education Vol. 17 No. 3 (2025): November 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v17i3.32684

Abstract

Mystus nigriceps is among the bagrid fish species that live in freshwater ecosystems, including Cicingguling River, Kebumen Regency, Central Java, Indonesia. Despite the economic importance and exploitation for food, the fish is rarely studied. Meanwhile, studies on the growth pattern and exploitation rate of M. nigriceps in the Cicingguling River are important because the population is also affected by river fragmentation due to reservoir development. Therefore, this study aims to analyze the growth pattern and exploitation rate of M. nigriceps in the Cicingguling River. Sampling was carried out using the purposive random sampling method in the Cicingguling River. A total of 9 stations were divided into 3 zones for 1 year, with a frequency of 12 times and an interval of once a month. The results showed that a length-weight relationship had an average b-value of 3.11, indicating a positive allometric pattern (b>3). The condition factor of female M. nigriceps (2.404) was higher than that of male fish (2.06). Total mortality (Z) was estimated at 4.85 per year, consisting of natural mortality (M) at 3.59 per year and fishing mortality (F) at 1.26 per year. These values suggest that the mortality of M. nigriceps is primarily driven by natural causes rather than fishing pressure. The exploitation rate was 0.26 per year, which is relatively low as it remains below the optimum threshold (Eoptimum = 0.5). This information is essential for fisheries management as a basis for M. nigriceps conservation in the Cicingguling River
Co-Authors Agus Nuryanto Endang Srimurni K Kusmintarsih MOH. HUSEIN SASTRANEGARA Siti Rukayah Windiarini Lestari