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M.Khairul Anam
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Grouper: Jurnal Ilmiah Perikanan
Published by Universitas Islam Lamongan
ISSN : 20868480     EISSN : 27162702     DOI : https://doi.org/10.30736/grouper.v10i2
Core Subject : Health, Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology Veterinary
Jurnal GROUPER menyediakan publikasi ilmiah dan menyebarluaskan artikel asli dan berkualitas yang berhubungan dengan disiplin ilmu perikanan yang meliputi: Pengelolaan Sumber Daya Perairan, Pengelolaan Wilayah Pesisir, Pengendalian Pencemaran Perairan, Kebijakan Pembangunan Perikanan, Agrobisnis Perikanan, Sosial Ekonomi Perikanan, Penyuluhan Masyarakat Perikanan.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Perairan
Articles 207 Documents
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Immunostimulant Application of Chlorella Vulgaris on the Growth of Vaname Shrimp (Litopenaeus vannamei) in Gresik Gunanti Mahasri; Daruti Dinda Nindarwi; Hapsari Kenconojati; Daud Dharmansyah; Adelia Inas Shafira; Afifah Elok Firdaus; Faisol Mas’ud; Endah Sih Prihatini; Fuquh Rahmat Shaleh
Grouper Vol. 17 No. 1 (2026): Grouper: Jurnal Ilmiah Perikanan
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/grouper.v17i1.387

Abstract

This activity aims to improve the defense of harvests and the bodies of vaname shrimp (Litopenaeus vannamei) in ponds in Gresik Regency through the application of immunostimulants from Chlorella vulgaris. The main problems faced by farmers include high shrimp mortality rates due to declining water quality and pathogen infections. The use of antibiotics has proven to be ineffective and causes residues in aquaculture products, which are harmful to health. Therefore, an environmentally friendly biotechnology approach through the use of natural immunostimulants is a more sustainable alternative. The implementation method included collaboration between the community service team, the Fisheries Service, and farmer groups in Mojoasem and Pangkah Wetan villages, Ujung Pangkah subdistrict, Gresik Regency. The stages of the activity consisted of socialization, training in the production and application of Chlorella vulgaris based immunostimulants, and assistance in applying the technology in ponds. The results of the activity showed that the use of Chlorella vulgaris immunostimulants had a significant effect on the growth and survival parameters of vaname shrimp.0020The 28-day maintenance period yielded the best results in terms of survival rate (SR) of 100%, specific growth rate (SGR) of 4.17%, and absolute weight and length growth of 1.39 grams and 1.10 cm. The application of immunostimulants can enhance immune response, maintain water quality stability, and reduce shrimp mortality rates. Thus, this technology has the potential to become an innovative strategy in the development of shrimp farming in the coastal areas of Gresik.
Effect of Nanobubble Air Pressure on the Hatching Success of Giant Gourami (Osphronemus gouramy) Eggs Rio Yusufi Subhan; Kurnia Faturrohman; Nurul Fatimah; Maisuri Hardani; Linuwih Aluh Prastiti
Grouper Vol. 17 No. 1 (2026): Grouper: Jurnal Ilmiah Perikanan
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/grouper.v17i1.400

Abstract

Giant gourami (Osphronemus gouramy) is an important freshwater commodity in Indonesia, but seed production is often constrained by low egg hatching rates and poor larval survival. Optimizing dissolved oxygen during egg incubation is critical, particularly because embryos and early larvae have not yet developed functional accessory breathing organs. This study evaluated the effect of different nanobubble air pressures on the hatching performance of giant gourami eggs. A completely randomized design with four treatments and three replications was applied: A) incubation without nanobubble (control); B) nanobubble air pressure of 0.3 psi; C) 0.6 psi; and D) 0.9 psi. A total of 1,000 eggs per incubation basin were stocked in 12 basins, and nanobubble aeration was supplied using a high-blower pump, fine-bubble diffusers, and digital manometers. Observed parameters included fertilization rate, hatching rate, hatching time, survival rate until day 3, and basic water quality (dissolved oxygen, temperature, and pH).  Nanobubble air pressure significantly affected hatching time and larval survival (p < 0.05), but had no significant effect on hatching rate (p > 0.05). The 0.6 psi treatment yielded the best biological performance, with fertilization rate of 91.57%, hatching rate of 83.53%, and survival rate of 94.58%, and along with the fastest hatching time (36 h 43 min at 80% hatch). Dissolved oxygen ranged from 4.36–5.75 mg L⁻¹, temperature 31.7–32.2°C, and pH 7.2–7.7 across treatments, all within acceptable ranges for gourami incubation, with the most stable conditions observed at 0.6 psi. These findings indicate that nanobubble aeration at 0.6 psi is an effective and practical strategy to improve egg hatching performance and early larval survival of giant gourami, and can be readily applied in small- to medium-scale hatchery systems with relatively low operational costs.
Morphometric and Length–Weight Relationship of Sea Cucumbers (Holothuriidae) in Northern Waters of Tunda Island, Banten Syarlla Putri Ara Fitria; Hafiz Hanania Rosadi; Firda Adzkiya Nur Fatahillah; Qien Ratu Syafa'ah; Shofi Nur Alamsyah; Prakas Santoso
Grouper Vol. 17 No. 1 (2026): Grouper: Jurnal Ilmiah Perikanan
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/grouper.v17i1.401

Abstract

Sea cucumbers (family Holothuriidae) are economically important marine invertebrates that are increasingly exploited, raising concerns about the sustainability of their populations. Sea cucumbers are economically valuable and contain bioactive compounds, making them important fisheries resources. This study aimed to analyze the morphometrics and length–weight relationship of sea cucumbers in the northern waters of Tunda Island, Banten. Sampling was conducted on 20–21 September 2025 using hand picking within 50 × 50 cm transects, with a total of 18 individuals collected. Morphometric parameters, including body length, diameter, and Body Basal Area (BBA), were measured under in situ and ex situ conditions. Linear regression analyses were performed to determine the relationships between these parameters and body weight. Results showed that BBA was the most reliable predictor of body weight, with R² = 0.731 for ex situ measurements, while in situ measurements had higher variability (R² = 0.219). Diameter and length had lower predictive power. These findings provide baseline data for sustainable management and utilization of sea cucumber populations. Future studies should integrate physiological variables, seasonal variation, and image-based morphometrics to enhance biomass estimation and conservation strategies.
Effectiveness of the Combination of Raffia Rope Attractors and Lighting on Fish Aggregating Devices (FADs) for Positive Phototactic Fish Rizky Janatul Magwa; Farhan Ramdhani; Yoppie Wulanda
Grouper Vol. 17 No. 1 (2026): Grouper: Jurnal Ilmiah Perikanan
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/grouper.v17i1.413

Abstract

Fish Aggregating Devices (FADs) are widely used to improve fishing efficiency, and their effectiveness depends largely on attractor design and visual stimuli such as light. This study aimed to evaluate the effectiveness of combining raffia rope attractors and LED lighting on surface FADs in attracting positive phototactic fish (Poecilia reticulata), and to assess their vertical distribution and behavioral responses. A laboratory experiment was conducted using a factorial Completely Randomized Design (position × light presence) with four treatments: bottom without light, bottom with light, surface without light, and surface with light. The primary parameter measured was the number of fish within a 10 cm attraction zone, recorded every 10 minutes for 60 minutes. Data were analyzed using Two-Way ANOVA at a 5% significance level. The results showed that FAD position significantly affected the number of fish approaching the attraction zone (p < 0.05), whereas light presence alone had no significant effect (p > 0.05). However, a significant interaction between position and light was detected (p < 0.05). The highest effectiveness was observed in the surface FAD without light (77%), suggesting that the visual structure of raffia attractors at the surface was sufficient to induce strong aggregation. These findings indicate that the effectiveness of raffia attractors is primarily driven by placement position rather than additional lighting, although their interaction still contributes to fish aggregation behavior. This study provides a practical basis for prioritizing surface FAD placement with raffia attractors over the use of additional lighting in small-scale fisheries.
Efficacy of Teak (Tectona grandis) Leaf Extract Against Aeromonas hydrophila in Catfish Silvana Kasim; Arafik Lamadi; Indra G. Ahmad
Grouper Vol. 17 No. 1 (2026): Grouper: Jurnal Ilmiah Perikanan
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/grouper.v17i1.415

Abstract

Catfish is a leading commodity in the fisheries cultivation sector, one of the main problems in catfish cultivation activities is infection with Motile Aeromonas Septicemia (MAS) disease caused by the bacteria Aeromonas hydrophilla. This study aims to determine the therapeutic activity of young teak leaf (Tectona grandis) solution against Aeromonas hydrophila bacteria and to find the most effective dose of young teak leaf (Tectona grandis) solution in inhibiting the performance of Aeromonas hydrophila bacteria. using a completely randomized experimental design with 4 treatments and 3 replicates conducted over 19 days. The fish were injected intramuscularly with a concentration of 10⁶ cfu/ml (0.1 ml) and subjected to treatments A (Control), B (10 g/L), C (15 g/L), and D (20 g/L). The fish were immersed for 20 minutes. The results obtained from the study were analyzed using analysis of variance (ANOVA). The results of the study showed that herbal therapy by soaking catfish in a solution of young teak leaves was effective in treating catfish infected with A. hydrophila at the optimal dose, namely in treatment B (10 g/L), which was characterized by a decrease in the number of bacteria calculated using the ALT method of 0.06 x 10⁷ in the kidneys and 0.02 x 10⁷ in the liver, as well as a survival rate and a cure rate of 100%. The results of this study are expected to be easily implemented and beneficial for fish farmers.
Immersion of Noni Extract Improves Recovery and Reduces Bacteria in Catfish Yusdiman W. Danial w. danial; Arafik Lamadi; Indra G. Ahmad
Grouper Vol. 17 No. 1 (2026): Grouper: Jurnal Ilmiah Perikanan
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/grouper.v17i1.416

Abstract

Catfish is one of the superior fisheries sectors in the market, but the obstacle often faced by catfish farmers is disease attacks. One of the diseases that often attack catfish is the Aeromonas hydrophila bacteria. An alternative that can be used in the treatment of bacteria in catfish is to utilize antibacterial compounds found in noni fruit (Morinda citrifolia). The purpose of this study was to determine the effective dose of noni fruit solution soaking in the treatment of catfish infected with Aeromonas hydrophila bacteria. This study used a completely randomized experimental design method with 4 treatments and 3 replications carried out for 17 days and was infected intramuscularly with a concentration of 106 CFU/ml of 0.1 ml, with test treatments A (Control), B (30 g/L), C (45 g/L) and D (60 g/L) and soaking using the short bath method for 20 minutes. The results obtained from the study will be subjected to analysis of variance (ANOVA). The results of the study showed that the effective dose was found in treatments B (30 g/L), C (45 g/L) and D (60 g/L) with the observed variables of fish recovery and survival rates being 100%, while the optimal dose for reducing the number of bacteria was found in treatment B (30 g/L) in the kidney section of 0.72 x 107 with a reduction of bacteria of 76.8% while in the liver section it was 0.57 x 107 with a reduction of bacteria of 80.1%.
Analysis of Factors Affecting the Income of Vaname Shrimp Farming Businesses (Litopenaeus vannamei) in Parigi District, Pangandaran Regency Ika Ayu Lestari; Ine Maulina; Nora Akbarsyah; Asep Agus Handaka Suryana
Grouper Vol. 17 No. 1 (2026): Grouper: Jurnal Ilmiah Perikanan
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/grouper.v17i1.418

Abstract

Vaname shrimp (Litopenaeus vannamei) farming is a highly profitable fishery business with the potential to increase farmers' income. This study aims to analyze the income from vaname shrimp farming in Parigi Subdistrict, Pangandaran Regency, and to analyze the factors that affect the income from this farming business. The study used a survey method with a quantitative approach. Data collection was conducted through observation, interviews, and questionnaires with vaname shrimp farmers. Data analysis was performed descriptively to describe the characteristics of the pond farming system, as well as quantitatively using cost and income analysis and multiple linear regression analysis. The results showed that the farming systems used consisted of semi-intensive, intensive, and super-intensive systems with differences in pond area, pond construction, number of water wheels, and stocking density. Business vaname shrimp farming provides profits in each farming system, with an average income per production cycle in semi-intensive ponds of IDR 92,820,000–IDR 201,874,333, intensive ponds of IDR 614,910,492, and super-intensive ponds of IDR 920,702,000. The regression analysis results show that the selling price variable has a significant effect on the income of vaname shrimp farming businesses, while probiotic costs and labor costs do not have a significant effect on income. The research conclusion shows that vaname shrimp farming businesses in Parigi Subdistrict are profitable in every farming system, and the selling price is the factor that has the most significant effect on income.

Page 21 of 21 | Total Record : 207

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