cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Dony Prasetyo
Contact Email
ijota@umm.ac.id
Phone
+6281299136444
Journal Mail Official
ijota@umm.ac.id
Editorial Address
Kampus III (3rd Campus) Universitas Muhammadiyah Malang, GKB 1 (1st Building), Lantai 5 (5th floor), Aquaculture Department (Room 505)
Location
Kota malang,
Jawa timur
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 6 Documents
 1 
Search results for , issue "Vol. 4 No. 1 (2021): February" : 6 Documents clear
Implication of total replacement of fish oil with vegetable oils on nutritional and lipid profiles of fish Christian Larbi Ayisi
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.v4i1.12378

Abstract

In this study, the effects of using vegetable oils solely in finfish feed on nutritional status as well as lipid damage were evaluated. Polyene index (PI), atherogenic index (AI) as well as hypocholesterolemic and hypercholesterolemic fatty acids were assessed. Also, n-3/n-6 and n-6/n-3 ratios were assessed. In all, 32 articles were used for this study after carefully assessing them. Eighteen (18) articles had studied Freshwater species (FWF) whiles fourteen (14) had studied Marine species (MF). TI, n-3/n-6, and n-6/n-3 were significantly higher in fish-fed saturated fatty acids (SFA), n-3, and n-6 dominant vegetables. We document that using vegetable oils without supplementing fish diets with fish oil does not compromise the nutritional status as well as lipid damage. This work provides important information about the effect of using 100% vegetable oils in fish with respect to the nutritional composition of the final product.
Analysis of catching of sea cucumber (Stichopus variegatus) in Kramian islands, Sumenep regency, East Java Dony Prasetyo; Riza Rahman Hakim; Andriyanto Andriyanto
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.v4i1.13327

Abstract

Kramian Island is located in the north of the Masalembu Islands, East Java. This area has good sea cucumber resources, but the rules on the prohibition of overfishing of sea cucumbers have not been implemented by the government in the Kramian Islands, so that fishing activities carried out by fishermen, continuously regardless of the type and size of sea cucumbers, can cause sea cucumbers in the wild to run out and the impact of sea cucumbers will be extinct. The research was conducted with the aim of knowing the fishing location, fishing method, sea cucumber species, number of catches, and benefits of sea cucumber catch. This research was conducted in March-June 2020. The method used in the study was observed with fishermen. The results of the discovery of the location of sea cucumbers using GPS, there were 3 types of sea cucumbers, namely Tanduk (Stichopus variegatus), Kapuk (Stichopus variegatus), and Susu (Holothuria rigida). Sea cucumber catch in March (253.4 kg), April (261.1 kg), May (124.1 kg), June (733.6 kg). The highest sea cucumber catch data occurred in June, while the lowest catch occurred in May.
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.

Page 1 of 1 | Total Record : 6

 1 

Filter by Year

2021 2021


Reset
Filter By Issues
All Issue Vol. 5 No. 1 (2022): February 2022 Vol. 5 No. 2 (2022): August Vol. 4 No. 2 (2021): August Vol. 4 No. 1 (2021): February Vol. 3 No. 2 (2020): August Vol. 3 No. 1 (2020): February Vol 3, No 1 (2020): February Vol. 2 No. 2 (2019): August Vol. 2 No. 1 (2019): February Vol. 1 No. 1 (2018): August More Issue