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Dony Prasetyo
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Kota malang,
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INDONESIA
Indonesian Journal of Tropical Aquatic
Published by Universitas Muhammadiyah Malang
ISSN : -     EISSN : 26224836     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Indonesian Journal of Tropical Aquatic (IJOTA) is open access publishes papers two times a year in February and Augst. IJOTA will publish the research results useful for the sustainability of fisheries. IJOTA is a scientific journal that discusses the results of research in science, technology, marine and freshwater fisheries that have not been published. Articles should be created in a language that is easily understood by non-specialist readers in the topic of the article itself, but interested in research. This scientific article includes the results of research on Aquaculture (Fish Nutrition, Fish Health and Diseases, Water Quality, Fish Genetics Improvement and Breeding, Fisheries Engineering and Biotechnology), Aquarium Sciences, Aquatic Ecology (Marine, Brackish, Freshwater), Conservation of Aquatic Resources and also Coastal Management. A journal script should be written in English.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Perairan
Articles 73 Documents
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Native and non-native ornamental aquarium fishes of Bangladesh Ishrak Hossain; ABM Mohsin
IJOTA (Indonesian Journal of Tropical Aquatic) Vol. 4 No. 1 (2021): February
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/ijota.v4i1.14023

Abstract

The study was conducted in Dhaka, Bangladesh. It was carried out for twelve (12) months from March 2018 to February 2019 to prepare a complete update checklist of native and non-native aquarium fishes of Bangladesh. During the current study, 270 varieties (230 freshwater, 36 marine, and 4 brackish water) belong to 149 species (109 freshwater 73 %, 36 marines 24 %, and 4 brackish water 3 %) of 38 families under 10 orders and 6 crossbreeds’ varieties were recorded. Considering the number of species maximum 83 (55.70 %) was found under the order Perciformes followed by Cypriniformes 24 (16.10 %), Characiformes 18 (12.08 %), Siluriformes 11 (7.38 %), Osteoglossiformes 05 (3.35 %), Atheriniformes 03 (2.01 %), Lepisosteiformes 02 (1.34 %), Polypteriformes 01 (0.6 %), Myliobatiformes 01 (0.67 %) and Cyprinodontiformes 01 (0.67 %). The top five popular species were guppy (13.16 %) followed by goldfish (12.39 %), molly (8.54 %), angelfish (6.23 %), platy (5.93 %). The number of fish species' increasing tendency was 5.96 times in the last 15 years, and 3.31 times in the last ten years. Local farms and aquarists breeders bred 76 varieties under 23 species due to its high demand and profitability. Pricing varied on varieties, species, size, and breeding status (local or abroad), availability, and ranged from BDT 40.00-80,000.00 per pair. According to the findings, aquarium fisheries are highly profitable and will be a potential sector in Bangladesh.
Utilization of Papaya Leaves (Carica papaya) in Feed on Growth of Catfish (Clarias sp.) in Muara Enim, South Sumatera Muhamad Sidiq Irsyadil Firdaus; Retno Cahya Mukti
IJOTA (Indonesian Journal of Tropical Aquatic) Vol. 4 No. 1 (2021): February
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/ijota.v4i1.14453

Abstract

The feed must have a quality that matches the needs of the fish to produce high fish growth. Feed quality can be improved by adding alternative ingredients to feed. One alternative material that can be used is papaya leaves. The purpose of this study was to determine the effect of adding papaya leaves to feed on the growth of catfish (Clarias sp). This research was conducted in Muara Enim, South Sumatra in August 2020. The treatments were P0: control (without adding papaya leaves) and P1: with the addition of papaya leaves. The data observed included absolute growth, specific growth rate, feed efficiency, and survival. Fish maintenance data that obtained in treatment P0, that absolute weight growth of 8.43 g, absolute length growth 5.13 cm, specific growth rate 6.41 %, feed efficiency 95.77 %, and survival 76 %, while in P1 treatment using leaves papaya produced absolute weight growth of 10.57 g, absolute length growth of 5.17 cm, the specific growth rate of 5.84 %, feed efficiency 100.83 %, and survival 60 %. The results obtained indicate that the provision of papaya leaves affects the growth of catfish.    
Analysis of Vannamei shrimp DNA fragment resistant to White Spot Virus Syndrome Wiwien Mukti Andriyani; Sumini Sumini; Zeny Widiastuti
IJOTA (Indonesian Journal of Tropical Aquatic) Vol. 4 No. 1 (2021): February
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/ijota.v4i1.15839

Abstract

The attack of WSSV in Vannamei shrimp cultivation is still common. Shrimp quality improvement can be made through selection with the help of markers (marker-assisted choice). This study aimed to evaluate the DNA fragment profile of white shrimp that was resistant to WSSV disease. The analysis was performed using the PCR-RAPD method. WSSV challenged four groups of 100 Vannamei shrimp, then DNA was extracted from live and dead shrimp. The results showed that 2 of the 17 primers tested had high potential as markers, namely OP-09 and OPD-2. PCR products with OPC-09 primers had specific DNA bands measuring about 1.2 kb in all post-challenge WSSV resistant shrimp individuals. The amplification results using OPD-02 primers showed a particular band of DNA with a length of about 1.0 kb, with 60 % of the appearance in WSSV-resistant shrimp. In contrast, the WSSV-susceptible shrimp group did not have specific DNA fragments. Thus, the two RAPD primers had a high chance of being used in the selection with the help of markers to produce WSSV resistant shrimp.
Effect of different types of feed (squid, sea worms, and trash fish) to gonad maternity and fundamental levels of Galah shrimp (Macrobrachium Rosenbergii) Ganjar Adhywirawan Sutarjo; David Hermawan; Alvi Zahrotun Nisa
IJOTA (Indonesian Journal of Tropical Aquatic) Vol. 4 No. 1 (2021): February
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/ijota.v4i1.15850

Abstract

Giant prawns (Macrobrachium rosenbergii) need enough nutrients for the reproductive process. One way to give feed which contains high enough protein. Complete nutritional content, especially protein, can be found in natural food. The type of natural feed used for main feeds including squid, sea worms, trash fish. Complete nutrient content can affect the rate of gonadal development and fecundity. (Squid, sea worms, trash fish) on the level of gonadal maturity and density of broodstock parents (Macrobrachium rosenbergii). This research was conducted by a completely randomized design (CRD) trial design. This study used 4 replications of different types of feeding. The types of feed given are squid, sea worms, trash fish, and pellets at a dose of 5% from biomass/day. The parameters of observation include observation of the level of gonad resistance, fundamentality of broodstock parent, and measurement of water quality (temperature, pH, and dissolved oxygen). The results showed that the administration of different types of feed (sea worms, trash fish) had a very significant effect on the level of maturity and had a significant effect on the probability of prawns (M. rosenbergii). After analysis of variance, the results of F Calculations are greater than F Table 0.05 and F Table 0.01. The smallest significant difference test (LSD) was obtained in P1 (Squid feed) with the Gonad maturity rate ± 5- 6 days as much as 83 % parent and fecundity average results of 28,846 ± 4,925.3 thousand / 45 g.
The effectivity of Garlic (Allium sativum L.) and Turmeric (Curcuma longa L.) in Tilapia (Oreochromis niloticus) infected by Edwardsiella tarda Novi Susanti; Dini Oktaviani; Leni Apriani; Gustriana Gustriana
IJOTA (Indonesian Journal of Tropical Aquatic) Vol. 4 No. 2 (2021): August
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/ijota.v4i2.17961

Abstract

The aim of this study is to determine the effectivity of Garlic (Allium sativum L.) dan Turmeric (Curcuma longa L.) in Tilapia (Oreochromis niloticus) infected by Edwardsiella tarda. We used sensitivity test with disc diffusion Kirby-Bauer method. The 24 hours purified E. tarda isolate, cultivated in Mueller Hinton Agar (MHA) by swabbing it using a sterile swab on the MHA surface, next put paper disc contain variants garlic concentrations and turmeric. Incubated MHA on the room temperature (30 oC) for at least 24 hours, inhibition zone diameter is measured to see the effectivity. Serial Tube Dilution method is used to determine the Minimum Inhibitory Concentration (MIC) value for garlic and turmeric. Used as medication base on the second stage were 1 × MIC2 × MIC4 × MIC and 8 × MIC. Statistical analysis used completely randomized design, with 6 treatment and 4 repetition which density 10 ind/aquarium each. The result showed that garlic and turmeric inhibited E.tarda effectively, the highest survival rate was 1 × MIC at 8000 ppm for garlic and 1 × MIC at 20 ppm for turmeric. However, MIC level cannot be used as reference to determine the dose of herbal treatment, we can determine the dose by using disc volume in resistance test.
Relationship of water quality with bacterial disease in Dumbo catfish (Clarias gariepinus L) in culture ponds in Palembang city Leni Apriani; Novi Susanti; Gustriana Gustriana
IJOTA (Indonesian Journal of Tropical Aquatic) Vol. 4 No. 2 (2021): August
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/ijota.v4i2.17963

Abstract

This study aims to determine water quality related to the occurrence of bacterial diseases of “Dumbo” catfish (Clarias gariepinus) reared in the pond. Field study was conducted at Bukit Lama and Bukit Baru Ilir Barat I Bukit Besar Palembang and laboratory studies was conducted at the Laboratory of Fish Quarantine Center of SMB II Palembang. The study was carried out at 3 representative locations. The parameters measured were: physical (temperature), chemical (dissolved oxygen, pH, ammonia, nitrate, and nitrite). The results of physical and chemical parameters indicated that the average value of all study sites was temperature of 30.30 to 30.73 º C, pH 6.5 - 7.0, ammonia of 0.01 to 1.6 ppm, dissolved oxygen of 0.87 to 3.4 ppm, nitrate of 1.4 to 3.2 ppm, nitrite of 0.01 ppm. The results of the identification of bacteria found 4 species, namely: Aeromonas hydrophila, Yersinia enterocolitica, Vibrio anguillarum, Pseudomonas aeruginosa which are pathogenic bacteria on fish. The dominant bacteria found during the study was Aeromonas hydrophila. The results of the study showed that the water quality of “Dumbo” catfish ponds (C. gariepinus) in Bukit Lama and Bukit Baru Ilir Barat 1 Palembang is not recommended for aquaculture.
Study relationship of the length and the weight of Baderbang fish (Barbodes schwanenfeldii) in The Dempok river, Gampingan, Pagak Sub-District, Malang Regency, East Java Ganjar Adhywirawan Sutarjo; Riza Rahman Hakim; Alisatul Amalia
IJOTA (Indonesian Journal of Tropical Aquatic) Vol. 4 No. 2 (2021): August
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/ijota.v4i2.17964

Abstract

Baderbang fish (Barbonymus schwanenfeldii) is one of Indonesia's endemic fish which has a great opportunity to be cultivated as consumption fish. The success of fish farming is supported by information about the growth patterns in the area of ​​origin of the fish. The study of the relationship between fish length and weight is one indicator to determine the growth pattern of Baderbang fish (Barbonymus schwanenfeldii). This research was conducted with the aim of knowing the morphometrics and growth patterns of Baderbang fish in the Dempok river, in the side of the Pagak village, Malang district. The data analysis was performed, namely the LAM (Liner Allometric Method) data analysis. This model was used to determine the values ​​of a and b. Baderbang fish regression for 6 months is in the range of 1.0558-3.1947, this shows that the growth pattern of Baderbang fish varies every month which includes an isometric growth pattern which is a parallel growth pattern between length increase and increase, growth pattern Positive allometric is a growth pattern with weight gain faster than length gain, while negative allometric growth is a growth pattern with a faster increase in length than weight gain. The long-weight relationship of fish in the Dempok river flow has R2 results ranging from 0.2079-0.9409.
The effect of green betel leave extract (Piper betlel) in feed as prevention of Edwardsiella ictaluri bacterial infection in catfish (Pangasianodon hypopthalmus) Safratilofa Safratilofa; Syahrizal Syahrizal; Edy Barkat Kholidin; Khairul Amsar Sardani
IJOTA (Indonesian Journal of Tropical Aquatic) Vol. 4 No. 2 (2021): August
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/ijota.v4i2.18082

Abstract

This study aimed to determine the effect of adding green betel leaf extract to feed on the prevention of Edwardsiella ictaluri bacterial infection in catfish. Betel leaf extract was sprayed into the feed according to the research dose, namely Treatment A pelleted feed + 0.3 mL betel leaf extract / 100 g of feed + injected with E. ictaluri bacteria. Treatment B pelleted feed + 0.6 mL of betel leaf extract/ 100 g of feed + injected with E. ictaluri bacteria. Treatment C pelleted feed + 0, 9 mL betel leaf extract / 100 g feed + injected E. ictaluri bacteria control (+) feed pellet + injected E. ictaluri bacteria control (-) pelleted feed + injected with physiological solution of NaCl 0, 9%. Feeding was carried out for 14 days, the challenge test was carried out on the 16th day, for observation of clinical symptoms, and survival rates were observed for 10 days after the challenge test. The results of the study showed that the best survival rate was in treatment C (66.66%) and the lowest was in treatment A (53.33%) with fewer external and internal clinical symptoms among other treatments.
Analysis of organic content on sediment and mangrove density in mangrove conservation area, Mamburungan urban village, Tarakan city, Indonesia Imra Imra; Minawati Minawati; Abdul Jabarsyah
IJOTA (Indonesian Journal of Tropical Aquatic) Vol. 4 No. 2 (2021): August
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/ijota.v4i2.17518

Abstract

The mangrove ecosystem in Mamburungan Village is known to have two dominant types of mangroves, namely Avicennia sp. and Sonneratia sp. The main factors that cause mangrove growth zoning are the type of substrate and the content of organic matter. This research was conducted through several stages, namely, determining the location, preparing tools and materials, taking sediment, and analyzing mangrove data. The highest organic matter content was found at station I of 2.53 % - 17.81 %, and the highest mangrove density ranged from 0.05 ind m-2 - 0.12 ind m-2 which was dominated by Avicennia sp. More organic matter content was found at a depth of 0 cm.
The effect of addition of calcium oxide (CaO) on the cultivation of Litopenaeus vannamei in freshwater Husnul Ayu Juniarti; Nanda Diniarti; Andre Rachmat Scrabra
IJOTA (Indonesian Journal of Tropical Aquatic) Vol. 5 No. 1 (2022): February 2022
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/ijota.v5i1.17899

Abstract

Indonesia, as the fourth-largest global producer of Vannamei shrimp, is facing increasing demand for shrimp, necessitating higher production. In response, the cultivation of Vannamei shrimp in freshwater has gained traction. However, freshwater environments are limited in essential calcium minerals required for shrimp growth. To address this issue, research on the addition of calcium oxide (CaO) in freshwater Vannamei shrimp cultivation was conducted. The main objective of this study was to assess the impact of calcium oxide (CaO) and determine the optimal dosage for the survival rate and growth of Vannamei shrimp in freshwater. The experimental method was employed, consisting of five different dosage treatments: seawater control, freshwater control, 40 ppm, 80 ppm, and 120 ppm of calcium oxide. The findings of this study revealed that the treatment with 120 ppm of calcium oxide exhibited the most favorable growth, with a weight of 16.40 g in the freshwater treatment. Additionally, the 80 ppm treatment demonstrated the highest survival rate, reaching 67% in the freshwater treatment.

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