Portal Jurnal Ilmiah Sekolah Tinggi Ilmu Pertanian (STIP) Wuna Raha
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Production and decomposition of mangrove litter in the Waters of Kampung Bulang, Tanjungpinang City
No full textThe process of litter decomposition plays an important role in producing important nutrients in the food chain and aquatic productivity of mangrove ecosystems. The purpose of this study is to determine the production of mangrove litter and its decomposition based on the density and cover of the mangrove canopy. The research location is in the waters of Bulang village. This research was carried out from June to July 2024. The method used is a systematic random method carried out in 20 sampling points. The research results found five species of mangroves, namely Rhizophora apiculata, Bruguiera cylindrica, Bruguiera gymnorrizha, Lumnitzera littorea, and Scyphiphora hydrophyllacea. The production of mangrove litter was 11.46 g DW/m² and the highest mangrove decomposition was 55.30%. The overall average density was 1195 individual/ha with medium criteria and the overall average canopy cover was 60.03% with moderate criteria. The results of the correlation test between litter production and canopy density and cover showed a very strong and significant correlation with litter production
Identification of sea grape (Caulerpa racemosa) content using X-Ray Fluorescence (XRF) spectrometer
No full textSeaweed possesses the potential to serve as a functional food or supplement, being nutrient-dense and a source of food and medicine due to its abundance of minerals, vitamins, and antioxidants. In Indonesia, seaweed is extensively utilized due to its advantageous properties for multiple industries, including agriculture, animal husbandry, pharmaceuticals, chemicals, and medicine. This study seeks to discover a specific component of sea grape (Caulerpa racemosa), which is prevalent in the waters of Lohia Village, Lohia District, Muna Regency, Southeast Sulawesi. The composition of sea grape (Caulerpa racemosa) was analyzed utilizing an X-ray Fluorescence Spectrometer (XRF) due to its capacity to detect nearly all minerals in a single measurement. The study's findings indicated that sea grapes (Caulerpa racemosa) at stations 1, 2, and 3 contained Chlorine (Cl), Calcium (Ca), Potassium (K), and Bromine (Br), along with several trace elements including Iron (Fe), Phosphorus (P), Strontium (Sr), Silicon (Si), and Titanium (Ti) in minor quantities. At stations 4, 5, and 6, sea grapes (Caulerpa racemosa) predominantly exhibited Chlorine (Cl), Potassium (K), and Magnesium (Mg), whereas Calcium (Ca) and Bromine (Br) were present in lesser quantities. Despite the considerable benefits of sea grapes (Caulerpa racemosa) for humans, caution is imperative in their use. Sea grapes (Caulerpa racemosa) possess the capacity to absorb minerals and bioaccumulate heavy metals from seawater, resulting in the presence of trace elements
Development of tourism objects with ADO-ODTWA, IFE, EFE at Muara Indah Beach Kota Agung, Tanggamus
No full textThe attraction of a tourist attraction must have its own uniqueness and development strategy compared to other tourist attractions. The research aims to identify types of tourism; analyze tourist attractions with ADO-ODTWA; and develop strategies for the development of tourist areas through IFE and EFE Analysis with a SWOT matrix approach at Muara Indah Beach. The research was conducted from November to December 2024 at Muara Indah Beach, Tanggamus Regency. Data collection techniques are carried out by observation, questionnaires, interviews, and literature studies. The types of tourist attractions at Muara Indah Beach are divided into types of nature tourism, cultural tourism, and sports tourism. The results of the ADO-ODTWA assessment obtained. The results of the assessment show that the variables of Attraction of Tourism Objects and Service Management fall in to the “Not Feasible” category; variables of Accessibility, Conditions Around the Area, Supporting Facilities and Infrastructure, and Availability of Clean Water, fall in to the “Feasible” Category. The results of then tire assessment of the ADO-ODTWA variable Muara Indah Beach are in the “Good to Develop (B)” category. The development strategy found that the IFE and EFE analysis in the Grow and Develop position. Internal Factors and External Factors found that the score results are > 2. The most important strategy to be carried out at Muara Indah Beach is the SO (Strength Opportunity) Strategy. SO strategies (1) build partner ships with relevant agencies; (2) maximize tourism opportunities; and (3) increase the number of visitors to the beach
An analysis of fish catch yields using natural liquid bait in the Kampung Beru River
No full textThis study aimed to analyze the effectiveness of natural liquid bait on fish catches in the Kampung Beru River, Takalar Regency. The research was conducted from May to June 2025 using an experimental fishing method with three types of natural liquid baits (chicken intestine, wheat flour, and eggs) applied to handlines. Data were collected through 12 fishing trips, measuring the length, weight, and number of fish caught. Data analysis included fish species composition, size structure, length-weight relationships, and ANOVA to determine the effects of bait use. The results showed that mullet (Mugil sp.) dominated the catches using wheat flour bait, while trevally (Caranx sp.) responded better to chicken intestine bait. The length-weight relationship indicated a negative allometric growth pattern (b 0.05). This study provides practical insights for fishers in selecting effective baits to enhance catches in riverine ecosystems
Nutritional analysis and consumer acceptance levels of mangrove apple fruit Sonneratia caseolaris with different concentrations
No full textMangrove apple fruit (Sonneratia caseolaris) has great potential as a functional food ingredient due to its high nutritional content, but its utilization is still limited, so product innovations such as syrup are needed. This study aims to analyse the nutritional content (moisture, ash, protein, fat, carbohydrates, and pH) and consumer acceptance of mangrove apple syrup at different concentrations, namely 20%, 30%, and 50%. This study used 3 different concentrations with 3 repetitions. The nutritional analysis results showed moisture content values of 55.35% for sample A, 59.62% for sample B, and 69.29% for sample C, ash content in sample A (0.03%), B (0.07%), and C (0.06%), fat content in sample A (0.06%), B (0.05%), and C (0.03%), protein content in sample A (0.09%), B (0.19%), and C (0.22%); carbohydrates in sample A (22.52%), B (18.60%), and C (17.10%); and pH in sample A (3.64%), B (3.52%), and C (3.43%). Meanwhile, the hedonic testing results showed texture values in sample A (4.33), B (4.17), and C (3.73), taste in samples A (4.27), B (4.23), and C (4.03), aroma in samples A (4.20), B (4.10), and C (3.97), and colour in samples A (4.17), B (4.13), and C (3.90). Differences in mangrove apple fruit concentration significantly affected moisture content, protein, fat, carbohydrates, pH, and syrup texture, but did not affect ash content or colour, aroma, and taste parameters. A 20% concentration was the most preferred treatment by panellists in the hedonic test
Role of youth in the success of Purse Seine Fishing in North Galesong
No full textThis study aims to analyze the role of youth in the success of purse seine fishing operations in North Galesong, South Sulawesi, focusing on their perceptions, operational participation, and adoption of modern technologies. A mixed-methods approach was employed, involving a questionnaire survey of 60 young fishers. Results revealed that the majority of youth hold positive perceptions toward the fisheries sector, demonstrate a high level of involvement in fishing operations, and express strong interest in technology training, despite facing barriers such as limited access to equipment and unstable income. Multiple linear regression analysis showed that operational costs had a significant influence on fishing success, while youth perception, participation, and technology use showed positive but statistically insignificant effects. The model's R² value of 0.157 indicates that the studied variables explain approximately 15.7% of the variation in fishing success. The study concludes that active youth participation contributes to more efficient fisheries operations, and that improving technical capacity through continuous training is essential to optimizing catch yields. Policy recommendations include providing technical training and technological incentives to strengthen youth contributions to sustainable fisheries management under the blue economy framework
Mangrove litter production In the waters of Los Island, Tanjungpinang City, Indonesia
No full textThe mangrove ecosystem is one of the ecosystems that has an important role in Indonesia's coastal areas, one of which is on Los Island. Los Island is located in Senggarang Village, Tanjungpinang City, Riau Islands Province. Los Island is a small island with mangrove vegetation around the edges. This research was carried out in March-April 2024. The research location was in the waters of Los Island, Tanjungpinang City. The method used is the direct service method in the field. Determination of sampling locations was carried out using a systematic random sampling method. sampling from members of a population where the first element is selected randomly and the next element is selected systematically based on certain patterns. In sampling litter production, 10 points were taken at a distance of 200 m. Based on the results of the analysis of mangrove litter production, the average value of litter production during the 4 weeks of observation on Los Island, Tanjungpinang City was 38.24 g DW/m2. In week 1 the average value of mangrove litter production was 72.12 g DW/m². In week 2 the average value of mangrove litter production was 74.67 g DW/m². In weeks 3 and 4, the average value of mangrove litter production was 72.86 g DW/m² and 93.30 g DW/m2. The value of the mangrove decomposition rate is based on the results of the analysis of litter decomposition calculations with an average value in weeks 1 and 2 of 1.78 g/day, in week 3 of 1.70 g/day, and in week 4 a value of 1.87 g/day
Education on marine issues through marine debris cleanup and sampling activities
No full textMarine debris is a problem caused by anthropogenic activities in land and sea, threatening the balance of marine ecosystems. Marine Debris Sampling and Volunteering activities are one of the actions organized by Our ConservaSea to increase public understanding about marine debris, as well providing overview of the status of marine debris in Manokwari coastal area. Activity was carried in 4 coastal locations in Manokwari at the end of 2022 to early 2023. Data collection was carried out descriptively. Based on the results of questionnaires and data of the program, we found out of 35 total participants, 91% rated the structure of the activity as very good, 82% answered that the activity facilities were very good, and 100% rated that the presentation of marine debris information had been delivered very well. Furthermore, the results of the activity content can reach up to 765 community engagement on social media
Utilization of local raw materials from South Sorong for nile tilapia (Oreochromis niloticus) feed production in Kokoda, Southwest Papua
No full textThis study aims to develop locally sourced, self-produced feed for Nile tilapia (Oreochromis niloticus) in Kokoda District, West Papua, to reduce high production costs due to reliance on commercial feed. A survey of local raw materials identified the potential use of sago flour, sembilang fish, shrimp heads, and banana peels as feed ingredients. The feed formulation was designed with a protein content of 31% and tested through proximate analysis and a 42-day growth trial of Nile tilapia using a Completely Randomized Design (CRD) compared to commercial feed. Results showed that self-produced feed resulted in lower weight and length growth compared to commercial feed, with higher feed conversion ratio (FCR) efficiency in commercial feed. However, the self-produced feed still demonstrated potential as an economical alternative with nearly equivalent fish survival rates. The study concludes that with further adjustments, self-produced feed can become a sustainable solution for tilapia farmers in remote areas
Catching of mantis shrimp (Lysiosquillina maculata) by fishermen of Tanakeke Islands based on Technical Domains
No full textMantis shrimp (Lysiosquillina maculata Fabricus, 1793) is a type of marine crustacean that has high nutritional content, especially protein, so it is quite in demand by the international community as a consumption ingredient. Mantis shrimp is an interesting species because it has true economic and ecological value. The development of mantis shrimp fisheries in the Tanakeke Islands and Kanalo Islands can provide broad benefits, both in terms of economy and social. Ecosystem Approach to Fisheries Management is here to realize fisheries management that balances socio-economic aspects and the utilization of fish resources fairly, with knowledge, information, and uncertainty regarding biotic, abiotic components, and human interactions in aquatic ecosystems to realize integrated, comprehensive, and sustainable fisheries management. This study aims to examine the capture of mantis shrimp Based on EAFM in the Fishing Technique Domain. This study is classified as mixed methods according to the indicators set for the Fishing Technique domain, namely the frequency of violations over the past five years; Catching; area of fishing area, and duration of fishing; legal documents of the fishing fleet; and fishing vessel crew certificates. The selection of research respondents was based on purposive sampling. The condition of the mantis shrimp fishery according to the Ecosystem Approach to Fisheries Management (EAFM) approach shows an aggregate value of 290 which produces a Domain value of 93.55. This value is included in the model category with a Dark Green flag, which indicates that the implementation of EAFM is at a very good level