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INDONESIA
Jurnal Perikanan Universitas Gadjah Mada
Published by Universitas Gadjah Mada
ISSN : 08536384     EISSN : 25025066     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology
Jurnal Perikanan Universitas Gadjah Mada are published to promote a critical review of the various investigative issues of interest in the field of fisheries between the researchers, academics, students and the general public, as a medium for communication, dissemination, and utilization of wider scientific activities.
Arjuna Subject : -
Articles 460 Documents
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Mapping of Changes in the Utilization of Marine Resources in the Small-Scale Fisheries Subsector in Indonesia (2008-2017) Fuat Edi Kurniawan; Yulinda Nurul Aini
Jurnal Perikanan Universitas Gadjah Mada Vol 24, No 1 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.68659

Abstract

More than 80% of national fishery production is produced by small-scale fishers, who generally have low levels of education and live in small communities, making them vulnerable to global changes. Fishers in small-scale fisheries use simple technology to limit the search for target commodities and new land. Fishing technology and variability of fish commodities are spatial components that reflect the productivity of fish commodities. In this study, cluster analysis was used to identify shifts in the distribution of marine resource use in 2008-2017 in 34 provinces of Indonesia. By understanding the spatial distribution of small-scale fisheries, changes in coastal marine ecosystems can be identified to avoid overexploitation of marine products. The study results show that motorized and outboard motorboats have increased while non-motorized boats have decreased. Skipjack tuna, snapper fish, and crab commodities are a significant production volume. Clustering analysis resulted in three groups with different characteristics. Cluster 3, which consists of Banten, West Java, and North Sumatra, experienced significantly increased fisheries productivity. Therefore, a priority scale program is needed by growing small-scale fisheries' role, such as budget allocations, to improve the economic scale of business actors in these areas.
Effectiveness of Different Probiotic Application on Vannamei Shrimp Productivity Maria Goreti Eny Kristiany; Guntur Prabowo; Suharyadi Suharyadi; Erni Marlina
Jurnal Perikanan Universitas Gadjah Mada Vol 24, No 1 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.68672

Abstract

Vannamei is a superior commodity of aquaculture in Indonesia. However, production of vannamei only reached 91.5% of the 450.000 tons revised target. Several factors are the cause of the target not being achieved. One of which is a disease outbreak. The use of probiotics as an application that improves the health status of shrimp is a better choice than the use of antibiotics for treatment. The effectiveness of the application of probiotics to control pathogenic microorganisms is highly influenced by the type of bacteria used. This research was conducted to examine the efficacy of using two different types of probiotics with different bacteria compositions on the productivity of vannamei shrimp. The 2.200 m2 pond plots shielded with low-density polyethene (LDPE) were used. The stocking density was 250 fry.m-2. The vannamei shrimp were fed with an artificial diet containing protein from 30-40%, fat form 5%, fibre form 4%, and water content form 11% during rearing. In preparation and maintenance of water management, probiotics A and B. were applied. The results showed that the use of type B probiotics reached better productivity than type A.
Some Biological Aspects of Spotted Barb Barbodes binotatus (Valenciennes, 1842) in Tamblingan Lake Ni Made Sita Aditya Putri; Nyoman Dati Pertami; I Nyoman Yoga Parawangsa
Jurnal Perikanan Universitas Gadjah Mada Vol 24, No 1 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.69415

Abstract

The biological aspects of the spotted barb, Barbodes binotatus (Valenciennes, 1842) in Tamblingan Lake were not published yet. This study aims to determine the biological aspects of spotted barb in Tamblingan Lake. Fish samples were captured using gill nets with various mesh sizes at five fixed stations monthly from January to December 2019. A total of 357 individuals of the spotted barb was collected, with the total length of the specimens ranging from 3.9 to 15.6 cm, and total weight varied between 0.93 and 60.30 g. The length-weight relationship for males and females were expressed as W = 0.0375L2.83 and W = 0.0272L3.02, respectively. The growth pattern for males and females was allometric negative and isometric, subsequently. The male-female sex ratio was 1.10:1, and the condition factor for males and females were 0.75-1.42 and 0.40-1.49, respectively. We observed male fish with gonad maturity stage I to IV. In contrast, female fish have gonad maturity stage II to V. The highest gonadosomatic index of male and female fish was found in September, indicating a peak of the spawning time. Fecundity ranged from 57-23897 eggs, with an average of 5901 eggs.
Phytochemical Constituents of Cnestis ferruginea and Its Toxicity in Fish Teslim Asefa Ojetayo; Abiola Fadilat Durojaiye; Nathanel Akinsafe Bamidele; Odunayo Rukayat Ibitunde; Oluwaseun Abigail Sofowote
Jurnal Perikanan Universitas Gadjah Mada Vol 24, No 1 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.69651

Abstract

The study explored the potentials of C. ferruginea as a nutritional supplement while also testing its possible toxicity to fish. Standard proximate and mineral analysis procedures were used to estimate nutritional composition, while Lorke's and Tainter and Miller's methods were used to determine LD50 of C. ferruginea. Results were presented as means±SD, and analysis of variance was used to test for differences in means. The values obtained for each parameter measured were significantly different (p<0.05) across all the samples. The analyzed ash contents for the crude powder, aqueous, ethanolic extracts were 1.47±0.02, 1.06±0.01, and 0.85±0.01,respectively. A low protein concentration of less than 5% was recorded across the samples. A decreasing trend (75.05±0.25 < 52.09±0.19 < 31.21±0.61) was observed in the carbohydrate values in the crude powder, aqueous and ethanolic extracts, respectively. The mineral composition of C. ferruginea across the samples was significantly different (p<0.05). The crude powder sample had the highest values recorded for all the minerals analyzed, followed by the aqueous and then ethanolic extract except for iron and copper, where ethanolic extract had higher values than aqueous extract. The values obtained for alkaloids, flavonoids, saponin, tannin, phenolic compounds, and oxalates showed a significant increase (p<0.05) in the crude powder sample, aqueous extract, and ethanolic extract, respectively. However, the ethanolic extract had higher values than the aqueous extract for glycosides, terpenoids, and steroids. Of the phytochemical components analyzed, oxalate had the highest value (16.11±0.01) followed by saponin (12.31±0.19), alkaloids (8.12±0.00), and tannin (6.43±0.17). The lowest values were recorded in steroids (0.11±0.00), terpenoids (0.29±0.01), and glycosides (0.34±0.01). LD50 was calculated to be 223.61 mg/kg for aqueous extract of C. ferruginea and 170.29 mg/kg for ethanolic extract (Lorke's method), while 124.82 mg/kg was obtained for aqueous extract and 128.63 mg/kg for ethanolic extract of C. ferruginea (Miller and Tainter method). The behavioural responses observed include weakness, hanging within the water column, and slow response to feeding. Mortality was recorded in some doses. The results indicate that C. ferruginea is a potential source of energy and minerals when incorporated into the fish diet. Its phytochemical constituent is wealthy and could be used in fish health management. However, the plant is toxic and cautiously applied with an LD50 value lower than 2.500 mg/kg.
Length-Weight Relationship and Condition Factor of Tillapia zilli in River Yobe, Northeast, Nigeria Samuel Segun Ashley-Dejo; Ijabo Samuel Ogah; Yahya Usman
Jurnal Perikanan Universitas Gadjah Mada Vol 24, No 1 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.69814

Abstract

This study examined the length-weight relation and condition factor of Tillapia zilli in River Yobe, Northeast, Nigeria. Three hundred fifty fish species were collected from commercial fishers at selected landing sites within the study area between June and November 2020. The morphometric and meristic characteristics examined varies due to environmental variations such as water temperature, stress, food availability, spawning ground, fishing intensity, and sex. The mean condition factor shows no significant difference (P < 0.05) throughout the sampling period. A linear relationship was established W = 0.4667 L1.1279 and significant at P < 0.01 with b value indicating a negative allometric growth pattern. The correlation coefficient (r2 = 0.5212) indicated that LWR model is reliable. This study provides baselines on length-weight relation and condition factor of Tillapia zilli in River Yobe. Thus further research should be encouraged on the water body for sustainable utilization, decision making, and policy formulation.
A Constant Market Share Analysis of Indonesia's Fishery Export Candra Aryudiawan; Suadi Suadi
Jurnal Perikanan Universitas Gadjah Mada Vol 24, No 1 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.72860

Abstract

Despite its importance in global fishery production as the world's second-largest producer, Indonesia is not one of the top ten fish exporting countries. This study uses constant market share analysis to examine Indonesia's fishery export performance. The data was collected from the United Nations International Trade Statistics Database and covered Indonesia's fishery exports from 1999 to 2019. Indonesian fishery products are classified using four-digit Harmonized System codes ranging from 0301 to 0308. Export growth is decomposed into four components: the global market, commodity compositions, market distributions, and competitiveness effects. The results indicate that the significant growth of the global fishery trade was the primary driver of Indonesia's fishery exports during the period. Indonesia is directing a significant portion of its exports to the most dynamic destination markets, such as China and ASEAN countries. The commodity composition and competitiveness effects were negative and significant throughout the period. Indonesia's integration into the global economy through structural adjustment programs, a liberalization strategy, WTO accession, and participation in several trade agreements, but these policies have had little impact on competitiveness. Indonesia's share of the global fish trade has declined from 4.11 percent in 1999 to 2.75 percent in 2019. Over the last 20 years, Indonesia's market share has gone down, which shows its lack of competitiveness.
Role of Shrimp Pond Management Institutions Supporting Shrimp Productivity in the Peureulak Coast, East Aceh Suprihadi Suprihadi; Moch Farkhan; Sinar Pagi Sektiana; Baihaqi Baihaqi; Suris Nelli; Muhammad Haris
Jurnal Perikanan Universitas Gadjah Mada Vol 24, No 1 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.73005

Abstract

Shrimp pond management institutions are the primary key in increasing shrimp productivity and as a means and infrastructure for developing ponds and coordinating all activities. This study aimed to analyze the institutional management of shrimp pond areas to support shrimp productivity in the National Priority Program on the coast of Peureulak, East Aceh, Aceh. This study uses the Interpretative Structural Modeling (ISM) method. Surveys and interviews carry out data collection methods, focus group discussions (FGD) and questionnaires. Five (5) elements are analyzed, namely program objectives, influencing community sectors, program needs, main constraints, and institutions involved in program implementation. The analysis results show that support for the cultivation environment and the community, adequate facilities and infrastructure, and business capital availability are key sub-elements of the program objectives. Meanwhile, the Central Government (Ministry of Marine Affairs and Fisheries), Provincial Marine and Fisheries Service, and Fish Farm Cultivator Group are the institutions that play the most role in increasing shrimp productivity. At the same time, the delivery of technology that cannot be implemented, the construction and layout of traditional ponds and knowledge of skills and the low attitude of pond managers is the main obstacle in the achievement of program objectives. In contrast, the community sector which is influential in supporting program objectives is transportation, fisheries and settlements.
Growth Performance of Silkworms (Tubifex sp.) Cultivated Using a Dry Substrate Mhd Yazid; Iin Siti Djunaidah; Moch Nurhudah
Jurnal Perikanan Universitas Gadjah Mada Vol 24, No 2 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.68259

Abstract

Silkworms are one type of live food that has begun to be intensified in their cultivation activities in Indonesia. This study aimed to determine the effect of feeding/dried substrate in different doses on the growth performance of silkworms. The second aim was to determine the appropriate dose of dry substrate for silkworm cultivation. The study used a completely randomized design (CRD) with 4 treatments of dry media at a dose of 114 g/m2 (D10), 228 g/m2 (D20), and 324 g/m2 (D30) dan without media as a control (D0). With 3 replications for each treatment. A silkworm starter was obtained from cultivation for 30 days. The research was conducted at Warung Benih Farm in Depok for 33 days. Data were analyzed using Analysis of Variance (ANOVA) and Duncan's further test with a confidence level of 0.05. The results showed that absolute weight growth, population growth, and the best productivity were obtained in the treatment of substrate addition with a dose of 324 g/m2 (D30) with an absolute biomass growth of 48.67 g, population growth of 59458 individuals, & the productivity of 0.556 g/m2 was/cycle. Most of the water quality observations are in the relatively optimal range.
Changes in Condition Factor, Hepatosomatic and Gonadosomatic Index of Yellowfin Tuna (Thunnus albacares) in Captivity Jhon Harianto Hutapea; Ananto Setiadi; Gunawan Gunawan
Jurnal Perikanan Universitas Gadjah Mada Vol 24, No 2 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.68351

Abstract

The necessity for tuna products in the world community continues to increase, while production relies only on catching, thus causing overfishing. Therefore, breeding technology to support tuna farming is fundamental to be developed. Yellowfin tuna farming in Indonesia has been successful in cultivating broodstock. This paper discusses biometric data that changes during cultivation, such as condition factor, hepato and gonadosomatic indexes compared with wild captured. Data were collected from young tuna to broodstock and compared with wild captured such as fork length, body, liver and gonad weight. The condition factor (K) of cultivated tuna (1.5-2.5) was higher compared with wild captured (1.5-2.0). Similarly, the value of cultivated tuna’s hepatosomatic index (HSI) was higher (0.63-1.14). In contrast, the gonadosomatic index (GSI) of wild captured yellowfin tuna was higher (>0.5) compared with cultivated yellowfin tuna in a circular concrete tank (0.4) but lower than that cultivated in a floating net cage (>1.4). Maintenance of broodstock in the tank with a lower GSI value means the number of eggs produced is relatively lower than its natural counterpart. At the same time, the high GSI value of cultivated broodstock in FNC shows better results than wild captured broodstock.
The Potential Secondary Metabolites of Macroalgae Sargassum polycystum C. Agardh (1824) from the coast of West Aceh as Raw Material of Body Scrub Mohamad Gazali; Nurjanah Nurjanah; Amir Husni; Chairun Nufus; Bintan Rahma Aulia; Citra Dina Febrina; Rina Syafitri
Jurnal Perikanan Universitas Gadjah Mada Vol 24, No 2 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.70504

Abstract

Sargassum polycystum is one brown seaweed with a rich alginate source. The previous study showed that S. polycystum could be used as a cosmeceutical raw material because of its natural attribute and safe. S. polycystum always grows in many coastal of Indonesia. This study aims to characterise brown seaweed (S. polycystum) as the raw material of the body scrub. The research method includes the extraction, phytochemical assay, antioxidant assay, and total phenolic content-the phytochemical screening-detected alkaloid and steroid compounds in S. polycystum extract. The antioxidant activity by using the CUPRAC method showed the ethanol extract was 53.55±1.07 µM/g and FRAP was 201.95±6.33 µM/g with total phenolic content was 177.647±21.39 Mg GAE/g. We compared the antioxidant capacity of the body scrub by adding brown seaweed of S. polycystum 7% (S7) used the CUPRAC method was 34.23±0.33 µM/g, and FRAP was 124.05±1.87 µM/g with total phenolic content was 416.31±78.44 Mg GAE/g. Kruskal Wallis's analysis showed that adding brown seaweed S. polycystum with different formulas influenced the panellist's preference for smearing ability, odor, texture, colour, and consistency parameters. According to the Mean rank obtained, the level of preferences of the panellists was gained from product S7 namely body scrub with the addition of brown seaweed S. polycystum as much as 7%. It is indicated that the brown seaweed S. polycystum possesses potentially body scrub raw material that is prospective in the cosmeceutical industry. 

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