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INDONESIA
Jurnal Perikanan dan Kelautan
Published by Universitas Riau
ISSN : 08537607     EISSN : 27218902     DOI : http://dx.doi.org/10.31258/jpk
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Environmental Science Immunology & microbiology Social Sciences
Journal of Fisheries and Marine was published by the Faculty of Fisheries and Marine of the Universitas Riau in 2007. The scope of the research included: Aquaculture, fisheries socioeconomic, fisheries technology, management of aquatic resources, utilization of fisheries and marine resources
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Perairan
Articles 978 Documents
 94   95   96   97   98 
Size Distribution and Growth Pattern of Kapiat (Barbonymus schwanefeldii) in Muaro Pijoan River, Jambi as a Scientific Basis for Development of Freshwater Aquaculture Febrina Rolin; Lauura Hermala Yunita; Yoppie Wulanda; Yusyam Leni; Rizky Janatul Magwa
Jurnal Perikanan dan Kelautan Vol. 31 No. 2 (2026): June
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.31.2.242-248

Abstract

apiat (Barbonymus schwanefeldii) is one of the economically important freshwater fish found in the Muaro Pijoan River, Jambi. Intensive fishing pressure and water quality degradation due to anthropogenic activities pose threats to the sustainability of this fish population. This study aims to examine the size distribution and growth patterns of kapiat in the Muaro Pijoan River as a scientific basis for development of freshwater aquaculture. Sampling was conducted in October 2025 using traps and gillnets. A total of 83 kapiat were collected, consisting of 51 males and 32 females. Male fish had a total length range of 110–160 mm with a weight range of 20–55 g, while female fish had a total length range of 120–166 mm with a weight range of 21–71 g. The size distribution of male fish was dominated by the 134–141 mm size class (25 individuals), while female fish were dominated by the 156–164 mm size class (13 individuals). Length-weight relationship analysis showed that male fish exhibited a negative allometric growth pattern (b = 2.6399; R² = 0.7313), indicating that length growth was faster than weight gain. In contrast, female fish exhibited a positive allometric growth pattern (b = 3.4445; R² = 0.8998), indicating that weight gain was faster than length growth due to the gonadal maturation process. The relatively smaller size distribution compared to other populations suggests environmental influence on growth performance. These results provide baseline information for domestication strategies, broodstock selection, and feeding management in freshwater aquaculture systems
Catfish (Clarias gariepinus) Culture Using a Recirculating Aquaculture System: A Review of Concepts and Benefits Ayi Yustiati; Sri Supriatinah
Jurnal Perikanan dan Kelautan Vol. 31 No. 2 (2026): June
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.31.2.228-235

Abstract

Catfish farming (Clarias gariepinus) is one of the rapidly growing aquaculture sectors in Indonesia. However, the main challenges frequently encountered are limited cultivation land and declining water quality due to the accumulation of metabolic waste, particularly ammonia. The Recirculating Aquaculture System (RAS) offers a solution by reusing culture water, assisted by mechanical, chemical, and biological filtration processes. RAS aims to minimize external water exchange while maintaining water quality at levels suitable for fish survival and growth. This article aims to review the concepts and benefits of recirculating systems in catfish culture, based on a literature review of scientific journals and related books, using a descriptive-exploratory approach. The review indicates that RAS provides numerous benefits, including improved water-use efficiency, enhanced water quality, reduced ammonia concentration, and increased stocking density and productivity in catfish culture. The role of filtration units and microorganisms is crucial in maintaining system stability, particularly in the decomposition of organic waste and toxic compound
Technical Challenges and Prospects for the Development of Eucheuma cottonii Seaweed Cultivation in Indonesia: A Literature Review Ayi Yustiati; Chevrina Tri Prasetya Ningsih
Jurnal Perikanan dan Kelautan Vol. 31 No. 2 (2026): June
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.31.2.254-261

Abstract

Eucheuma cottonii is one of Indonesia’s leading seaweed commodities, possessing high economic value as a raw material for the carrageenan industry. Productivity levels in seaweed cultivation are influenced by cultivation methods, aquatic environmental conditions, and technical challenges during cultivation. This study aims to analyze the productivity of E. cottonii by considering various cultivation methods, assessing the impact of environmental factors and technical challenges on production yields, and linking these findings to the potential for the development of seaweed cultivation in Indonesia. The method used in this study is a literature review, analyzing various national and international scientific journals published between 2014 and 2025. The data analyzed included cultivation techniques, productivity levels, temperature, salinity, cultivation locations, and technical challenges affecting the growth of E. cottonii. Research findings indicate that the longline and floating raft methods generally yield higher productivity than the Off-bottom method, thanks to better water circulation, more even nutrient distribution, and higher light intensity. Environmental factors such as temperature, salinity, currents, and sedimentation influence the growth and biomass formation of seaweed. In addition, technical challenges such as ice-ice disease, changes in environmental conditions, seedling quality, and the stability of cultivation structures hinder productivity. Overall, the prospects for developing E. cottonii cultivation in Indonesia are quite promising. However, they require proper environmental management, the use of high-quality seedlings, the application of efficient cultivation technologies, and the strengthening of the downstream industry to sustainably improve productivity and increase the added value of seaweed products.
Effectiveness of Filters on the Growth and Survival Rate of Tambaqui (Colossoma macropomum) in a Recirculating Aquaculture System Ahmad Sayyid Barokah; Iskandar Putra; Niken Ayu Pamukas
Jurnal Perikanan dan Kelautan Vol. 31 No. 2 (2026): June
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.31.2.249-253

Abstract

Tambaqui (Colossoma macropomum) is a highly promising aquaculture commodity, yet intensive cultivation produces excessive organic waste that degrades water quality. The Recirculating Aquaculture System (RAS) serves as an effective solution for managing water quality through filtration, the performance of which depends heavily on the filter's design and layout. This study aimed to determine the effectiveness of various filter layouts on water quality stability, growth performance, and survival rates of tambaqui reared in a recirculating system. This experimental study employed a Completely Randomized Design (CRD) with 4 treatments and 3 replications, including layouts with no filter/control (P1), vertical (P2), horizontal (P3), and a vertical-horizontal combination (P4). The rearing process was conducted for 50 days at the Aquaculture Technology Laboratory, Universitas Riau. The results demonstrated that the combination filter layout (P4) yielded the best performance, achieving an average absolute weight gain of 10.71 g, absolute length gain of 6.81 cm, specific growth rate of 3.58%, feed efficiency of 83.33%, feed conversion ratio of 1.18, and a survival rate of 100%. Water quality parameters in P4 also exhibited the highest stability, with temperatures of 26.9–29.4°C, pH 6.1–7.3, dissolved oxygen 4.50–6.00 mg/L, ammonia 0.007–0.022 mg/L, nitrite 0.038–0.044 mg/L, and nitrate 0.131–0.366 mg/L. It can be concluded that the implementation of a recirculating system with a combination filter layout (vertical-horizontal) is the most effective treatment for optimizing water quality, thereby significantly enhancing the somatic growth and feed utilization efficiency of tambaqui.
Physiological Responses and Nonspecific Immunity in Striped Catfish (Pangasianodon hypophthalmus) Fed Fermented Herbal Medicine Wiwik Yuliana; Henni Syawal; Morina Riauwaty; Fahrurrozi Fahrurrozi
Jurnal Perikanan dan Kelautan Vol. 31 No. 2 (2026): June
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.31.2.287-298

Abstract

Aeromonas hydrophila infections in aquaculture can cause mass mortality of up to 80–100% of striped catfish. Adding fermented herbal medicine containing essential oils, curcumin, flavonoids, and xanthorrhizol to feed can boost the fish's immunity. This study aims to analyze the optimal frequency of administering fermented herbal supplements in feed to enhance fish immunity, conducted from June 2024 to June 2025. A Completely Randomized Design (CRD) was used with 5 treatments and 3 replicates: Kn (no supplement, no infection), Kp (no supplement, infected with A. hydrophila), with 200 mL/kg of herbal supplement administered daily (P1), once every 3 days (P2), and once every 5 days (P3). The fish (P. hypophthalmus fingerlings, 8–12 cm, 20 fish/tank) were reared in 100-liter plastic buckets for 46 days. On day 32, the fish were infected with A. hydrophila (intramuscularly, 0.1 mL, 10⁸ CFU/mL), and they were maintained for 14 days thereafter. Each container was equipped with an aerator and a Dacron filter. The best results were obtained in P1, which showed a survival rate (SR) of 100%, a post-infection survival rate of 100%, a weight gain of 109.33 ± 2.51 g, serum protein of 3.94 ± 0.06 g/dL, albumin 3.76 ± 0.05 g/dL, globulin 0.21 ± 0.04 g/dL, lysozyme activity 373.33 ± 15.27 U/mL, and phagocytosis activity 51.11 ± 16.44%. Based on the data obtained, it can be concluded that the daily administration of 200 mL/kg of fermented herbal supplement in the diet yields the best results in enhancing the immune response and growth of P. hypophthalmus infected with A. hydrophila.
Dynamics of Utilization and Sustainable Production Potential of Narrow-barred Spanish Mackerel (Scomberomorus commerson) in the Waters of Tanjung Jabung Barat Regency, Jambi Dyva Mahda Wahyuni; Lauura Hermala Yunita; Rahayu Dian Eka Putri; Hari Cahyono; Giri Pratama; Diah Maulani Saputri
Jurnal Perikanan dan Kelautan Vol. 31 No. 2 (2026): June
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.31.2.262-267

Abstract

Narrow-barred Spanish mackerel (Scomberomorus commerson) is a high-value large pelagic fish resource extensively exploited by fishers in Tanjung Jabung Barat waters, Jambi Province. This study aimed to analyze the Maximum Sustainable Yield (MSY) and utilization rate of mackerel based on production and fishing effort data from 2019 to 2023. The Schaefer surplus production model was applied with fishing effort standardization using the Fishing Power Index (FPI). Fishing gears operating in the area included a lift net (bagan perahu), hand line, group purse seine, one boat purse seine, bottom long line, and troll line. Group purse seine was selected as the standard gear with a CPUE of 525.83 kg/unit. The MSY was estimated at 60,753.94 kg year⁻¹ with an optimum fishing effort (Eopt) of 208.98 standardized units. The Total Allowable Catch (TAC) was 48,603.15 kg year⁻¹ (80% MSY). The average utilization rate over the study period was 22.76%, and the average effort rate was 12.58%. All utilization and effort rates were below 60%, indicating underfishing. This condition suggests there is still potential for sustainable increases in fishing effort in these waters
Carbon Stock Estimation in the Mangrove Area of the Marine Station of Universitas Riau, Dumai Intan Yunika Putri; Aras Mulyadi; Efriyeldi Efriyeldi; Ilham Ilahi; Benny Heltonika
Jurnal Perikanan dan Kelautan Vol. 31 No. 2 (2026): June
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.31.2.268-278

Abstract

Mangrove forests can store more carbon than most terrestrial forest ecosystems, making them important for climate change mitigation. Their carbon sequestration potential depends on the trees' ability to absorb atmospheric CO₂ through photosynthesis. This study aimed to estimate biomass, carbon stock, and CO₂ sequestration in the mangrove area of the Marine Station of Universitas Riau, Dumai, Indonesia. The research was conducted from September to November 2025 at three stations representing terrestrial, riverine, and marine zones. Data were collected through DBH measurements of mangrove vegetation and sediment coring, supported by environmental parameters such as temperature, pH, and salinity. Mangrove density ranged from 1,200 to 2,388.33 individuals ha⁻¹, with the highest value at Station 2 and the lowest at Station 3. This pattern was positively related to biomass, vegetation carbon stock, and CO₂ sequestration. Estimated biomass reached 897.73 tons ha⁻¹, while vegetation carbon stock was 421.93 tons ha⁻¹. Sediment was the largest carbon pool, ranging from 1,896.10 to 2,202.97 tons ha⁻¹, with the highest value at Station 1. Total carbon stock reached 2,462.12 tons ha⁻¹. Statistical analysis showed a strong positive correlation among stand density, biomass, carbon stock, and CO₂ sequestration. Regression analysis indicated a significant relationship (R² = 0.502), meaning 50.2% of the variability in these parameters was explained by stand density. At the same time, the remainder was influenced by other factors such as stand age, substrate fertility, and planting distance.
Otolith Growth-Check Patterns and Morphometric Relationships of Nile Tilapia (Oreochromis niloticus) from the Deli River Estuary, North Sumatra, Indonesia Christina Sharon Aprilia Manalu; Deni Efizon; Efawani Efawani; M. Irsyad Nur
Jurnal Perikanan dan Kelautan Vol. 31 No. 2 (2026): June
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.31.2.279-286

Abstract

Nile tilapia (Oreochromis niloticus) is tolerant of variable aquatic conditions, but fluctuations in growth can be recorded in the macrostructure of its otoliths. This study characterized sagittal otolith morphology, quantified fish–otolith morphometric relationships, described dark growth-check patterns, and evaluated concurrent water-quality conditions in the Deli River Estuary, Belawan Bahari, North Sumatra. Fifty fish (27 females and 23 males) obtained from four artisanal fishing occasions between October and December 2024 were measured for total length, body weight, otolith length, width, and weight. Length–weight relationships were estimated using W = aLᵇ, whereas total length–otolith relationships were assessed by linear regression. Fish measured 180–235 mm and weighed 152–300 g; sagittal otoliths were 4.30–6.77 mm long and 0.0063–0.0630 g in weight. The estimated length–weight exponent was 2.979 in females (95% CI: 2.545–3.414) and 2.463 in males (95% CI: 2.063–2.863), indicating near-isometric growth in females and negative allometry in males. Total length explained 78.4% of male otolith-length variation but only 13.9% in females. Dark growth checks ranged from zero to three; 45 fish (90%) had at least one check, and the first check occurred 0.225–0.300 mm from the nucleus. Temperature was 25–28 °C, pH was 6.0, and dissolved oxygen was 4.09 mg/L. The growth checks indicate episodes of reduced otolith accretion, but their causes and periodicity cannot be assigned without validation. Seasonal sampling, replicate readings, and otolith chemical or physiological analyses are recommended.
Types and Abundance of Phytoplankton in the Genting River Estuary, Tanjung Medang Village, North Rupat District, Bengkalis Regency, Riau Sampson Anjuando Sitorus; Eddiwan Eddiwan; Isma Mulyani
Jurnal Perikanan dan Kelautan Vol. 31 No. 1 (2026): February
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.31.1.97-104

Abstract

The waters of North Rupat are an area with various anthropogenic activities, including tourism, industry, transportation, and activities of local communities who work as farmers, ranchers, traders, and fishermen, which may cause water pollution. The estuaries in this area have mangrove ecosystems, seagrass beds, and open waters that support the life of aquatic organisms. Phytoplankton, as primary producers, play an important role in the food chain and can serve as biological indicators of water quality and fertility. This study aims to determine the types and abundance of phytoplankton in the Genting River Estuary, Tanjung Medang Village. The study was conducted in September 2024 using a survey method to obtain primary data in the form of phytoplankton samples and water quality parameters. Samples were taken three times at weekly intervals, then identified and counted for abundance. The results showed that there were 43 types of phytoplankton consisting of Bacillariophyceae (23 types), Chlorophyceae (7 types), Cyanophyceae (8 types), Dinophyceae (1 type), Euglenophyceae (1 type), and Zygnematophyceae (3 types). The abundance of phytoplankton ranged from 6,280 to 7,560 cells/L, indicating low water fertility. Water quality parameters (temperature, salinity, pH, dissolved oxygen, free carbon dioxide, nitrate, and phosphate) still support phytoplankton survival. Thus, it can be concluded that the waters of the Genting River Estuary exhibit a fairly high phytoplankton diversity but are classified as low in fertility
Enhancement of Fish Immunity and Survival Rate Through Dietary Supplementation with Sargassum sp. Powder Sri Wahyuni; Asri Mursawal; Anisa Mardhatila; Ronal Kurniawan; Ervia Yudiati
Jurnal Perikanan dan Kelautan Vol. 31 No. 1 (2026): February
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.31.1.25-31

Abstract

Pathogenic bacterial infections in intensive aquaculture systems are among the primary causes of high fish mortality, underscoring the need for safe, sustainable natural antibacterial alternatives. Sargassum sp. is known to contain bioactive compounds with potential antibacterial and immunostimulatory properties. This study aimed to evaluate the effects of dietary supplementation with Sargassum sp. powder on the immune response and survival rate of Nile tilapia (Oreochromis niloticus). The experiment was conducted using a Completely Randomized Design (CRD) with one factor and five treatments: negative control (Kn), positive control (Kp), and dietary treatments P1 (15 g/kg feed), P2 (30 g/kg feed), and P3 (45 g/kg feed). Observed parameters included hematological profiles (erythrocytes, leukocytes, hemoglobin, hematocrit, and leukocrit) and survival rate during 30 days of rearing. The results showed that dietary supplementation with Sargassum sp. powder significantly improved hematological parameters in Nile tilapia compared with the control groups. The highest values were observed in P1, with total erythrocytes (1.66 × 10⁶ cells/mm³), hemoglobin (8.73%), hematocrit (31.3%), and leukocrit (1.67%). The highest survival rate was also recorded in P1 and Kp (100%). Therefore, the inclusion of Sargassum sp. powder at 15–30 g/kg feed is recommended as the optimal dosage to enhance the immunity and survival rate of Nile tilapia

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