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Abdul Qadir Jailani
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Journal Of Aquaculture Development and Environment
Published by Universitas Tidar
ISSN : -     EISSN : 2655545X     DOI : -
Core Subject : Humanities, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Humanities Environmental Science
The focus and scope of the research is related to the discussion of the development of aquaculture in general and the environment.
Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Ilmu Lingkungan (Lain-Lain)
Articles 67 Documents
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Species Invasion of Jaguar Cichlid (Parachromis managuensis) in Nyunyur Reservoir Dadiono, Muh Sulaiman; Murti, Pratiwi Restu; Andayani, Sri
Journal of Aquaculture Development and Environment Vol 7, No 1 (2024): Journal of Aquaculture Development and Environment
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jade.v7i1.8595

Abstract

Foreign fish, especially predatory fish in Indonesian public waters, are very dangerous for the local ecosystem, foreign predatory fish can become the main predators and can cause an imbalance in the ecosystem. From this study we report the catch of foreign predatory fish from the jaguar cichlid species (Parachromis managuensis) from Central American waters caught in Nyunyur Reservoir, Blitar Regency, East Java. The method in this study used a desk study and jaguar cichlid species identification method using morphological observations based on Kullander and Hartel (1997). This catch is a warning and an important note for the relevant agencies regarding the invasion of the jaguar cichlid species in the Nyunyur Reservoir as an initial step in monitoring aquatic ecosystems.
The Effect of Nitrogen and Salinity on The Content of Lipid Dunaliella salina Aziz, Hanan Abdul
Journal of Aquaculture Development and Environment Vol 6, No 2 (2023): Journal of Aquaculture Development and Environment
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jade.v6i2.7761

Abstract

Microalgae are micro-sized algae plants that can usually be found in fresh and marine waters. One of the marine microalgae that has the potential to be developed is Dunaliella salina because it has a fairly high nutrient content, namely 57% carbohydrates, 32% protein, and 6% lipids. Cultivation of D. salina and other microalgae in general is very dependent on several things, including nutrient content, salinity, temperature, pH, and light intensity. The nutrient that D. salina needs in large quantities is nitrogen. Besides nitrogen, salinity is also one of the other factors that also affect D. salina because D. salina is a halophilic microalgae, namely microalgae that have the ability to survive in conditions of high salt content (20–40). This study aims to determine the effect of nitrogen and salinity on lipid D content in D. salina, as well as the best nitrogen concentration and salinity concentration that can produce the highest lipids in D. salina culture. This research method is experimental. The research design used was a randomized block design (RBD) factorial pattern. There are two factors, namely factor A, which is the concentration of salinity, namely A1 = 25 ppt salinity, A2 = 30 ppt salinity, A3 = 35 ppt salinity, and A4 = 40 ppt salinity. Factor B is the nutrient content, namely B1 = NaNo 3 100g/L (control), B2 = NaNo 3 75g/L, B3 = NaNo 3 50g/L, and B4 = NaNo 3 25g/L. The results of the data analysis study showed that the highest lipids in D. salina could be detected on the 7th day in treatment M, namely 40 ppt salinity and 25g/L nitrogen concentration, which had the highest lipid yield of 0.7720%. Under low nitrogen conditions, microalgae can produce energy reserves such as lipids. The lowest lipid on day 7 was found in treatment D with a salinity of 25 ppt and a nitrogen concentration of 100 g/L, which was obtained at 0.3180%. Under high nitrogen conditions, microalgae produce few energy-reserve compounds such as lipids.
Study Of The Status Of Diversity And Potential Of Fish In The Downstream Area Of The Brantas River (Mojokerto, Sidoarjo, Surabaya) As An Effort To Conserve Biological Biota In East Java Kusuma Putri, Whidia Safira
Journal of Aquaculture Development and Environment Vol 7, No 1 (2024): Journal of Aquaculture Development and Environment
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jade.v7i1.8329

Abstract

The Brantas River is also a good aquatic habitat for the growth and development of fish. The types of fish in the river have the potential to be developed as a superior product of a region, as an effort to combine conservation efforts and economic development for local communities. However, the potential of river fisheries has not been maximized, therefore the need for a study of the potential of natural resources, especially fisheries that support environmental sustainability so that the utilization of the potential resources of the lower reaches of the Brantas River can improve the welfare of the surrounding community. Sampling was carried out at nine station points by purposive random sampling. Data analysis used is quantitatively based on the calculation of Shannon-Wienner diversity index (H'), dominance index (Di) and Pearson correlation test. The results obtained showed that the fish found in the lower reaches of the Brantas River amounted to 17 species classified into 13 families. The diversity index ranges from 1.32 - 2.22 with a medium index category. The dominance index is included in the low category, which means that there is no dominating fish species. Of the 17 fish species, 9 species have been cultivated, 7 species have the potential to be cultivated and 1 species is not cultivated.
ABUNDANCE AND DIVERSITY OF PHYTOPLANKTON IN RIVER FLOWS IN BANJAREJO VILLAGE IN SUPPORTING THE PRODUCTIVITY OF TRADITIONAL PONDS IN BANJAREJO VILLAGE, LAMONGAN Nurvita, Aprillia Dwi; Laila, Nur Roudlotul; Isroni, Wahyu; Dewi, Nina Nurmalia
Journal of Aquaculture Development and Environment Vol 7, No 1 (2024): Journal of Aquaculture Development and Environment
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jade.v7i1.8986

Abstract

Banjarejo Village River close by in a way direct with aquaculture areas so that the main water source used for irrigate pond originate from river water. Problems in the Banjarejo Village River is lack of management waste domestic nor waste activity agriculture can influence water quality and existence phytoplankton. Therefore that's the goal study this for know composition type, abundance, diversity, uniformity and dominance phytoplankton in rivers as material information management pond traditional and River. Taking sample done month December 2023 and January 2024 at time morning, afternoon and evening. Research sites found 3 stations. The main parameters observed covers abundance, diversity, uniformity and dominance phytoplankton. Meanwhile, the supporting parameters in the form of bulk data rain and water quality. Composition results type phytoplankton found in the Banjarejo Village River as many as 17 genera from 4 classes phytoplankton (Bacillariophyceae, Chlorophyceae, Cyanophyceae and Xanthophyceae). The value of abundance phytoplankton in the river flow in Banjarejo Village in the month December and January are included in type waters mesotrophic, index diversity medium, index even uniformity, and index dominance show that no there is a genus that dominates. Brightness, ammonia, nitrate and nitrite values in December and January overall exceeded the maximum limit. As for the test results of other parameters like temperature, DO, pH, salinity and phosphate still in optimal category for growth phytoplankton.
PERFORMANCE OF SPECIFIC GROWTH RATE VANNAMEI SHRIMP USING EM4 PROBIOTICS IN MAINTENANCE MEDIA Sogho, Sevin F. A. Kae; Jasmanindar, Yudiana; Djonu, Asriati
Journal of Aquaculture Development and Environment Vol 6, No 2 (2023): Journal of Aquaculture Development and Environment
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jade.v6i2.7782

Abstract

Vannamei shrimp cultivation that applies intensive and supra-intensive technology using high stocking density treatment and maximum feeding has negative impacts such as organic waste from leftover feed and feces which causes growth in shrimp to be disrupted. This research aims to determine the effectiveness of adding EM4 probiotics to rearing media on the growth rate of vannamei shrimp. This research used a completely randomized design (CRD) with four treatments, namely without administration of probiotics, with addition of probiotics in maintenance media of 1 ml/l, 3 ml/l and 5 ml/l. The parameters measured in this research were the specific growth rate during the 28 days of rearing period. The results showed that giving probiotics at a dose of 1 ml/l gave the best specific growth rate of 3.47 g%/day on the 28th day.
Growth And Survival Rate of Tilapia (Oreochromis niloticus) Fed With Different Level of Azolla microphylla Wahdania, Wahdania; Saharuddin, Saharuddin; Yuniati, Dewi
Journal of Aquaculture Development and Environment Vol 7, No 1 (2024): Journal of Aquaculture Development and Environment
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jade.v7i1.8503

Abstract

Azolla microphylla is abundant in nature and has not been utilized optimally. A. microphylla can grow and bloom quickly. The protein content of A. microphylla is quite high, 19.54%-28.12% . Furthermore A. microphylla also has 7-10% amino acids, especially 0.24% lysine. Utilization of A. microphylla as feed potential for aquaculture. This research aims to determine the effect and optimum dose of combination A. microphylla flour with artificial feed on growth and survival rate of tilapia (O. niloticus). This study used a Completely Randomized Design with 4 (four) treatments and 3 (three) replications, repectively treatment A (0% A. microphylla), treatment B (10% A. microphylla), treatment C (A. microphylla 15%), and treatment D (A microphylla 20%). The parameters tested were specific growth rate (SGR), growth rate (GR), survival rate (SR) and feed conversion ratio (FCR). The tilapia used had an average initial body weight of 1.10 g with a stocking density of 10 fishes/containers. The fish reared for 30 days and fed 2 times a day. The result showed that there was no significant difference in specific growth rate, growth rate, survival rate and FCR (P0.05). A. microphylla can be used as a combination of artificial feed up to 20%, it showed the same growth and survival rate as the control treatment.
Parachromis managuensis : The Danger of Foreign Fish Species in Penjalin Reservoirs Dadiono, Muh Sulaiman; Murti, Pratiwi Restu
Journal of Aquaculture Development and Environment Vol 6, No 2 (2023): Journal of Aquaculture Development and Environment
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/jade.v6i2.7927

Abstract

Foreign predatory fish species in Indonesia have the potential to threaten the local ecosystem by becoming the main predators that disrupt the balance of the food chain in local waters. Through this research, we want to report the invasion of the species Parachromis managuensis, which originates from Central American waters. This fish species has been found in significant numbers and sizes in the waters of the Penjalin reservoir. In this study, a morphological approach was used to identify the Parachromis managuensis species. The capture of this species was recorded as the first step in efforts to monitor the reservoir water ecosystem in Brebes so that it remains balanced. Results and discussion, including a description of the morphology of the Parachromis managuensis species that have been caught, can be found in this research report.

Page 7 of 7 | Total Record : 67

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