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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 199 Documents
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The Effect of Production, Price, Exchange Rate, And Trade Policy on Indonesian Tuna Exports to Japan from 2009 to 2023 Nisa Hafi Idhoh Fitriana; Intan Savitri Ciptaningtyas
Grouper Vol. 16 No. 2 (2025): Grouper : Jurnal Ilmiah Perikanan
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/grouper.v16i2.322

Abstract

Tuna is an essential commodity in the fishing and marine due to its high economic value and ability to generate foreign exchange for the country. Analysis of the factors affecting Indonesia's tuna exports to Japan is very important based on Japan's position as the main export market for Indonesian tuna in order to help formulate effective policies in increasing the competitiveness and volume of Indonesian tuna exports. Therefore, the purpose of this research is to analyze the effect of tuna fish production in Indonesia, the real price of tuna fish exports, and the real rupiah-US dollar exchange rate on the volume of Indonesian tuna fish exports to Japan. The data used is quantitative with secondary data sources from the United Nations Commodity Trade Statistics Database (Un Comtrade), Badan Pusat Statistik (BPS), and Kementerian Kelautan dan Perikanan (KKP) from 2009 to 2023. Time series data for 15 years were analyzed using multiple linear regression models (Ordinary Least Square). The results showed that simultaneously, production variables, real prices, and real exchange rates had a significant influence on the volume of Indonesian tuna exports to Japan. However, partially, only the real exchange rate has a significant effect on export volume but the direction of the effect is negative, while production and real prices have no significant effect on export volume. Policy recommendations include enhancing production efficiency and product quality through fleet modernization and stronger processing capacity, stabilizing the rupiah exchange rate, and promoting the use of hedging instruments among tuna exporters. These measures aim to mitigate exchange rate risks and strengthen Indonesia’s tuna export competitiveness in high-value markets such as Japan.
The Growth and Response Moulting of Mud Crabs (Scylla tranquebarica) Injected with Spinach Extract Debi Rusadi; Putri, Dwi Septiani; Okto Rimandi Bakkara
Grouper Vol. 16 No. 2 (2025): Grouper : Jurnal Ilmiah Perikanan
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/grouper.v16i2.331

Abstract

Mud crab is a superior aquaculture commodity with a wide market potential both domestically and internationally. One of the main problems in mud crab cultivation is the long maintenance period and unequal moulting time. The purpose of this study was to determine the effect of spinach esxtract injection on the growth and response molting of mud crabs (Scylla tranquebarica). This reaserch was conducted in June-August 2024 for 60 days at the Sea Cages Maju Mandiri Group, Madong Village, Kampung Bugis Subdistrict, Tanjungpinang Kota District, Tanjungpinang City, Riau Islands Province. The method used in this study was an experimental method using a Completely Randomized Design (CRD) of 4 treatments and 3 replications. The results showed that the vitomolt injection treatment gave a significant difference (p>0.05) to the percentage of crab molting tested. The injection method of spinach extract (vitomolt) with a dose of 90 µg/g gave the highest molting percentage results of 83.33%, molting time at d-46, absolute weight growth of 89.00 g. Moulting stimulation with the spinach extract injection method (vitomolt) 90 μg/g can be applied to the cultivation of mud crabs (S. tranquebarica) because it can accelerate the molting process and growth of mud crabs.
Endosulfan Analysis of Berau Delta Pond Soil Syam, Sufriady; Adawiyah, Rabiatul; Basir
Grouper Vol. 16 No. 2 (2025): Grouper : Jurnal Ilmiah Perikanan
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/grouper.v16i2.335

Abstract

The aquaculture areas of Berau Regency are traditionally managed through a polyculture system involving tiger shrimp (Penaeus monodon) and milkfish (Chanos chanos) in the Berau Delta. Aquaculture practitioners commonly apply insecticides and herbicide at the start of the rearing period or post-harvest to control weeds along pond embankments and surrounding areas. These practices have contributed to endosulfan accumulation in pond soils over time and affect aquaculture productivity. Assessing endosulfan levels in soil is critical and may inform level of level of accumulation of the harmfull sibstance overtime. This study aimed to inform soil characteristics across different pond age categories, hypothesizing that soil quality declines with increasing cultivation duration. The research was conducted within the operational aquaculture cycle, sampling soils from three ponds representing construction periods of 1990–2000, 2000–2010, and 2010–2020. Laboratory analysis revealed that pond soils in the Berau Delta did not contain detectable levels of endosulfan, with all samples showing concentrations below the limit of quantification (LoQ) of 0.040 mg/kg.
Identification of Seagrass Types and Density in Mibi Village, Makbon District, Sorong, Southwest Papua Loupatty, Ellen; Fahrizal, Ahmad; Ratna, Ratna; M. Amir Suruwaky; Darwin K. Inggamer
Grouper Vol. 16 No. 2 (2025): Grouper : Jurnal Ilmiah Perikanan
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/grouper.v16i2.338

Abstract

The study was conducted in Mibi Village, Makbon District, Sorong Regency, Southwest Papua, to identify seagrass species and assess their density. The study was conducted in May-June 2024 during low tide using the line transect method with certain stations and repetitions. The results identified seven types of seagrasses, with Halodule uninervis and Syringodium isoetifilium having the highest density. Suggestions for further research include exploring the economic value of seagrass through tourism, fisheries, pharmaceutical, and other industrial sectors, potentially providing a positive impact on the Mibi Village community. This study can be a reference for thesis research or further studies on seagrass in Southwest Papua, Indonesia.
Inhibition Activity of Ultrasonic-Assisted Extract of Sonneratia caseolaris Mangrove Leaves (UCESc) against Escherichia coli Tanti Dwi Oktavia; Pramono, Heru; Yuli Pujiastuti, Dwi; Wina Sapphira, Eunike; Alvianita Az-Zahra, Naela
Grouper Vol. 16 No. 2 (2025): Grouper : Jurnal Ilmiah Perikanan
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/grouper.v16i2.340

Abstract

Mangrove Sonneratia caseolaris’s leaf contains bioactive compounds such as alkaloid, flavonoid, phenolic, and tannin. Previously, crude extract of S. caseolaris leaf was reported has potential as antibacterial. However, information on antibacterial activity profile of ultrasonic- assisted extract of S. caseolaris leaf against Escherichia coli was limited. Therefore, the aim of this study was to determine the effect of ultrasonic-assisted extraction on S. caseolaris leaf extract’s antibacterial activity against E. coli. The extraction was performed using ultrasonicator bath at 40 KHz, 40 °C for 25 minutes using 96% ethanol as a solvent. The phytochemical analysis was indicated that the crude extract Sonneratia caseolaris (UCESc) contains flavonoid, saponin, steroid, and tannin, but lack of alkaloid. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of UCESc were performed with microdilution with MIC of 24 mg/mL and MBC is 48 mg/mL. The antibacterial assay using disc dilution assay indicated that the best activity was at a concentration of 96 mg/mL with an inhibition zone of 4.88 mm. This study suggested that ultrasonic assisted extraction is potential approach to extract S. caseolaris bioactive compounds with a potential to be used as an antibacterial.
Suitability and Carrying Capacity Analysis of Marine Ecotourism at Bahak Beach, Probolinggo Regency, East Java Primyastanto, Mimit; Puspa Wardani, Mentari; Supriyadi, Supriyadi; Febryane Adhani Mazaya, Amalia; Dwi Nadila, Ema; Koni’Atun Nisa’, Septiana; Ardi Susanto, Farhan; Muhtar Efendi, Bagas
Grouper Vol. 16 No. 2 (2025): Grouper : Jurnal Ilmiah Perikanan
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/grouper.v16i2.360

Abstract

Bahak Beach is one of the destinations that has been developed into a marine tourism area in Probolinggo Regency. Bahak Beach offers various tourist attractions, utilizing the presence of mangrove and beach ecosystems. The objective of this research is to analyze the suitability and carrying capacity of the marine ecotourism area at Bahak Beach, Probolinggo Regency. The research was conducted in October 2024. The data for this research were obtained through primary sources, using structured observations and interviews. This study employs a quantitative descriptive method, with data analysis focused on carrying capacity and the Tourism Suitability Index (IKW). The results of the carrying capacity analysis for the marine ecotourism area at Bahak Beach show a value of 74% (Moderately Suitable) and Carrying Capacity analysis yielded the equation PCC > RCC > ECC with values of 1934 > 1221 > 244. The analysis of the Tourism Suitability Index (IKW) for the tourist attractions at Bahak Beach reached 75% (Highly Suitable). It is recommended to further develop and sustain the marine ecotourism at Bahak Beach by adding attractions for children and enhancing the competencies of ecotourism managers through training.
Analysis Of The Welfare Level Of Fishermen in Klampis Village, Klampis District, Bangkalan Regency Qomariyah, Badriyatul; Hamidah Hendrarini; Nisa Hafi Idhoh Fitriana
Grouper Vol. 16 No. 2 (2025): Grouper : Jurnal Ilmiah Perikanan
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/grouper.v16i2.361

Abstract

Fishermen are one of the coastal community groups that are vulnerable to economic uncertainty due to dependence on catch results and natural factors. Weather fluctuations, price changes, and limited access to production facilities often affect their income and welfare. In Klampis Village, the increase in the number of fishermen has not been followed by an increase in fish catch, leading to economic problems within fishermen households. This study aims to analyze household income and fishermen's welfare based on the Fishermen's Exchange Rate (NTN) in Klampis Village, Klampis Subdistrict, Bangkalan Regency. The research uses a descriptive quantitative approach with 60 respondents selected through simple random sampling from a total population of 150 fishermen. The analytical methods used include household income analysis and NTN calculation. The results show that the average household income of fishermen is IDR 3,585,718 per month, while the average expenditure reaches IDR 3,498,426 per month. The NTN value of 1.024 indicates that fishermen households are at an economic equilibrium point, with a surplus that has not yet been utilized for savings or long-term investments. Most income is still allocated to daily consumption and operational costs, resulting in weak long-term economic resilience.
Public Perception of Mangrove Crab Catching Restrictions in Kuala Lupak Village, Tabunganen District, Barito Kuala Regency Suhardi, Suhardi; Erma Agusliani; Irma Febrianty
Grouper Vol. 16 No. 2 (2025): Grouper : Jurnal Ilmiah Perikanan
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/grouper.v16i2.390

Abstract

Due to increasing pressure from exploitation, the government has issued several regulations to maintain the sustainability of mangrove crab resources. Regulation of the Minister of Maritime Affairs and Fisheries (Permen KKP) Number 17 of 2021, later amended by Regulation of the Minister of Maritime Affairs and Fisheries Number 16 of 2022, regulates the utilization of lobsters, crabs, and swimming crabs in Indonesian territory. The research aims to analyze public perceptions of restrictions on catching mangrove crabs in Kuala Lupak Village, Tabunganen District, Barito Kuala Regency. This research was conducted in Kuala Lupak Village, Tabunganen District, Barito Kuala Regency, South Kalimantan Province. The perceptions and behavior of fishermen towards the regulations of the Minister of Maritime Affairs and Fisheries, the entire population of mangrove crab fishermen will be the research respondents, namely 50 respondents. Data analysis used in this research activity is a Likert scale used to measure the attitudes, opinions, and perceptions of an individual or group of people about social phenomena. Fishermen's Perception of Regulation (Very Positive) Fishermen's perception of the Regulation of the Minister of Maritime Affairs and Fisheries Number 7 of 2024 is categorized as Very Positive (average score close to 4.00, on a scale of 1-4). Acceptance of Benefits: Fishermen strongly agree that this regulation is beneficial and effective in the long term, especially because the community has felt its impact directly, namely the size of the crabs caught tends to be larger (increasing the selling price). Understanding of Conservation: There is adequate understanding of the need for conservation, including the importance of keeping egg-laying crabs and crabs below the minimum size so that resources do not become extinct.
Impact of Glucose Addition on The Embryo Development of Climbing Perch (Anabas testudineus Bloch) Fauzi, Akhmad; Slamat, Slamat; Rukmini, Rukmini
Grouper Vol. 16 No. 2 (2025): Grouper : Jurnal Ilmiah Perikanan
Publisher : Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/grouper.v16i2.396

Abstract

The addition of glucose to the hatching medium is thought to enhance the embryonic development of climbing perch by providing additional energy, strengthening metabolic stability. This research aims to analyze the impact of glucose addition on the embryonic development of climbing perch in developing efficient, sustainable, and conservation-oriented hatchery technology. The study was conducted in the Ulin River, North Banjar Baru District, with broodstock climbing perch from BBII Karang Intan, aged less than 1.5 years and weighing at least 100 g for females and 50 g for males. Fertilized eggs were then incubated in aquadest incubation media using 20 petri dishes, and the media was given glucose solution according to the treatment, namely 0.2 g/100 mL (A), 0.4 g/100 mL (B), 0.6 g/100 mL (C), and without the addition of glucose as a control (D). The addition of glucose solution to the hatching medium has a positive effect on embryo development. Glucose helps increase the metabolic activity of the embryo, accelerates development, and produces optimal hatching power (100%).

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