Aqusains: Jurnal Ilmu Perikanan dan Sumberdaya Perairan

Analisis Penerimaan Konsumen dan Kelayakan Finansial Bumbu Instan Abon Ikan Dengan Penambahan Daun Jeruk Purut (Citrus histrix)

2025-11-17T17:48:30+00:00

Abon ikan umumnya memiliki aroma amis sehingga diperlukan kreasi dengan penambahan daun jeruk purut (Citrus hystrix) untuk mengurangi aroma amis pada abon tersebut. sehingga diperlukan penambahan daun jeruk perut pada bumbu instan abon ikan. Sebagai produk baru bumbu abon ikan ini perlu dilakukan analisis penerimaan konsumen serta kelayakan finansial. Tujuan penelitian ini untuk menganalisis penerimaan konsumen terhadap bumbu instan abon ikan dengan penambahan daun jeruk purut dan menganalisis kelayakan finansial dari usaha bumbu instan abon ikan. Penelitian ini dilakukan dengan metode eksperimen dengan menggunakan Rancangan Acak Lengkap (RAL) dengan perlakuan penambahan daun jeruk purut yaitu P1 (0 gram), P2 (2 gram), P3 (4 gram), P4 (6 gram) dan P5(8 gram). Hasil penelitian menunjukkan bahwa pengaplikasian bumbu instan memiliki pengaruh yang berbeda sangat nyata pada parameter warna, aroma, dan rasa. Sedangkan untuk parameter tekstur tidak berbeda nyata terhadap penerimaan konsumen dan bumbu yang menjadi perlakuan terbaik adalah bumbu dengan perlakuan 3 dengan 4 gram daun jeruk purut. Dari hasil analisis finansial usaha bumbu instan abon ikan dapat dikatakan layak dijalankan dikarenakan, NPV sebesar 874.515.101, IRR = 187,8% > tingkat suku bunga, Net B/C = 1,290 > 1 dan PP = 1 tahun 2 bulan 3 hari dengan proyeksi umur usaha untuk 10 tahun produksi.

TINGKAT KERAPATAN DAN TUTUPAN VE TINGKAT KERAPATAN DAN TUTUPAN VEGETASI MANGROVE ESTUARI PERANCAK

2025-11-06T02:37:17+00:00

Hutan mangrove merupakan hutan yang terdapat di kawasan pesisir pantai yang fungsinya menahan air laut atau laju gelombang pada saat terjadinya pasang tertinggi. Tujuan dari penelitian ini adalah untuk mengetahui tingkat kerapatan dan tutupan vegetasi mangrove di perancak. Metode yang digunakan adalah dengan survei lapangan dan analisis citra satelit. Hasil yang diperolej yaitu Kerapatan mangrove pada tahun 2024 adalah 0,040-1 dan pada tahun 2025 0,040-1 dengan jenis vegetasi yang mendominasi adalah Bruguiera dan Rhizopora. Kualitas air di Lokasi penelitian Adalah suhu sebesar 30,4˚C, Ph 8,4 dan Salitas perairan Adalah 32. Substrat yang ada dilokasi penelitian Adalah tekstur kasar (pasir dan lempung berpasir)

Analisis Mikroplastik pada Saluran Pencernaan dan Insang Ikan Petek (Leiognathus splendens) di Sungai Remu Papua Barat Daya

2025-09-25T09:57:43+00:00

Mikroplastik merupakan salah satu polutan yang menjadi perhatian global karena berdampak buruk terhadap organisme akuatik dan kesehatan manusia. Penelitian ini bertujuan untuk menganalisis keberadaan mikroplastik pada saluran pencernaan dan insang ikan petek (Leiognathus splendens) yang ditangkap di Sungai Remu, Kota Sorong, Papua Barat Daya. Pengambilan sampel dilakukan di tiga stasiun berbeda menggunakan metode purposive sampling. Identifikasi mikroplastik dilakukan dengan metode digesti menggunakan larutan KOH 10%, kemudian diamati di bawah mikroskop stereo. Hasil penelitian menunjukkan bahwa total mikroplastik yang ditemukan terdiri atas empat jenis, yaitu fiber, film, fragmen, dan pellet. Fiber merupakan jenis yang paling dominan dengan jumlah 11 partikel, diikuti oleh film (10 partikel), fragmen (2 partikel), dan pellet (1 partikel). Distribusi mikroplastik pada organ menunjukkan bahwa usus lebih banyak mengandung mikroplastik dibandingkan insang, terutama di stasiun hilir. Pola spasial mengindikasikan bahwa jumlah mikroplastik meningkat dari hulu ke hilir, sejalan dengan meningkatnya aktivitas antropogenik di sekitar sungai. Hasil ini memperkuat bukti bahwa Sungai Remu telah mengalami pencemaran mikroplastik yang cukup serius, yang dapat menimbulkan risiko ekologis bagi biota perairan maupun kesehatan manusia yang mengonsumsi ikan dari perairan tersebut.

PENENTUAN KUALITAS BENIH BERDASARKAN HUBUNGAN PANJANG DAN BERAT YUWANA IKAN KERAPU CANTANG DALAM FASE PENDEDERAN RECIRCULATING AQUACULTURE SYSTEM (RAS

2025-08-14T09:46:10+00:00

This study aimed to analyze the length-weight relationship and identify the growth pattern of juvenile hybrid grouper (Epinephelus fuscoguttatus × Epinephelus lanceolatus) during the nursery phase in a Recirculating Aquaculture System (RAS).The research employed a sample size of 95 juveniles for each of the two size groups (10 cm and 11 cm). The 10 cm group exhibited a mean total length of 107.10 mm and a mean weight of 20.77 g, while the 11 cm group had a mean total length of 117.44 mm and a mean weight of 30.31 g. Linear regression analysis demonstrated a negative allometric growth pattern in both groups, indicating that length growth was more pronounced than weight gain. The coefficients of determination (R2) were 0.420 for the 10 cm group and 0.642 for the 11 cm group, suggesting that 42% and 64.2% of the variation in body weight, respectively, was attributable to changes in body length. Throughout the study, environmental water quality parameters were maintained within the optimal range as specified by the Indonesian National Standard (SNI). In conclusion, although the juveniles demonstrated negative allometric growth, the RAS proved effective in sustaining a favorable rearing environment. Further research encompassing different developmental stages is recommended to achieve a more comprehensive understanding of the species' growth dynamics.

Analisis Kelayakan Finansial Udang Vaname di Desa Bratasena Adiwarna Kecamatan Dente Teladas Kabupaten Tulang Bawang

2025-07-23T10:41:10+00:00

Udang vaname dari sudut pandang ekonomi memiliki prospek dan laba yang menguntungkan meskipun seringkali mengalami tantangan finansial dan teknis yang lebih besar. Penelitian ini bertujuan mengidentifikasi dan mengkaji alasan petambak masih bertahan dan tetap melakukan budidaya udang vaname serta menganalisis kelayakan finansial dan sensitivitas usaha budidaya udang vaname. Penelitian ini menggunakan metode studi kasus yang dilakukan di Desa Bratasena Adiwarna, Kecamatan Dente Teladas, Kabupaten Tulang Bawang pada Bulan Januari sampai Februari 2025. Responden dalam penelitian ini berjumlah 70 orang petambak menggunakan metode proportional random sampling. Penelitian ini menggunakan metode analisis kelayakan finansial meliputi NPV, Net B/C, Gross B/C, Payback Period, IRR, dan analisis sensitivitas, serta analisis deskriptif kualitatif meliputi faktor internal dan eksternal. Hasil penelitian menunjukkan bahwa alasan terbanyak yang mendasari petambak masih membudidayakan udang vaname karena komitmen pada usaha. Penelitian ini menunjukkan bahwa budidaya udang vaname memberikan nilai NPV sebesar Rp828.872,784, IRR sebesar 74,85 persen, Gross B/C sebesar 1,57, Net B/C sebesar 9,24, Payback Period sebesar 4,78. Budidaya udang vaname masih layak diusahakan apabila terjadi penurunan harga jual udang vaname sebesar 15 persen, kenaikan biaya pakan sebesar 20 persen, dan penurunan produksi sebesar 28 persen.

STUDY ON WATER QUALITY AND POLLUTION CAPACITY OF SILANDAK RIVER, SEMARANG

2025-07-15T10:03:33+00:00

The Silandak River has a function as a water supplier in agricultural irrigation and drainage systems to reduce flood risk. The water quality of the Silandak River is declining due to household waste, factory waste, fish pond activities, and fishing boats that disrupt the ecosystem. This study aims to analyze the level of pollution and the carrying capacity of the pollution load in the Silandak River. This research was conducted in July-September. Sampling was carried out at six stations that are suspected of having the potential to experience pollution. The results of the water quality analysis of the Silandak River show that the values of TSS, nitrite, total phosphate, BOD, COD, and DO are not under the class II water quality standards of Government Regulation No. 22 of 2021, while the values of TDS, nitrate, and ammonia still meet the quality standards. The results of the Pollution Index (IP) analysis at Stations I, II, III, and VI are in moderate pollution conditions while Stations IV and V are in heavy pollution conditions. The river capacity for TSS, nitrite, phosphate, BOD, COD, and DO parameters has exceeded the pollutant quota at each observation station. Meanwhile, for the parameters of TDS, nitrate, and ammonia, it is still in the pollutant quota so it is still in the safe category. Pollution that occurs in the Silandak River is associated with high COD and BOD parameters. This is caused by domestic waste and factory industry inputs to the river.

A Performance Evaluation of Vannamei Shrimp (Litopenaeus vannamei) Cultivation in Intensive Fermentation-Based Systems CV 58 in Bali Utara

2025-07-14T08:58:47+00:00

Intensive vannamei shrimp (Litopenaeus vannamei) farming using a fermentation-based system offers an innovative solution to environmental management and production efficiency. This study was conducted over one cultivation cycle (80 days) in six ponds operated by CV Tambak 58, North Bali, integrating periodic probiotic fermentation. Key parameters evaluated included growth (ABW, ADG), feed efficiency (FCR), survival rate (SR), water quality, and microbiological stability. Results showed high productivity (up to 2.53 kg/m2), low FCR (1.13–1.40), and SR >85%, accompanied by stable planktonic and microbial communities. These findings indicate that fermentation-based systems reduce environmental stress and disease risks while enhancing the sustainability of intensive shrimp aquaculture.

EVALUASI KINERJA BUDIDAYA UDANG VANAME (LITOPENAEUS VANNAMEI) PADA SISTEM INTENSIF BERBASIS FERMENTASI CV 58 DI BALI UTARA

2025-07-09T11:12:10+00:00

Intensive vannamei shrimp (Litopenaeus vannamei) farming using a fermentation-based system offers an innovative solution to environmental management and production efficiency. This study was conducted over one cultivation cycle (80 days) in six ponds operated by CV Tambak 58, North Bali, integrating periodic probiotic fermentation. Key parameters evaluated included growth (ABW, ADG), feed efficiency (FCR), survival rate (SR), water quality, and microbiological stability. Results showed high productivity (up to 2.53 kg/m²), low FCR (1.13–1.40), and SR >85%, accompanied by stable planktonic and microbial communities. These findings indicate that fermentation-based systems reduce environmental stress and disease risks while enhancing the sustainability of intensive shrimp aquaculture.

THE EFFECT OF ADDING VITAMIN C TO COMMERCIAL FEED ON THE GROWTH AND SURVIVAL OF CANTANG GROUPER FISH

2025-06-17T11:38:58+00:00

This study was conducted to scientifically evaluate the effect of vitamin C supplementation in commercial feed on the growth performance and survival rate of cantang grouper (Epinephelus fuscoguttatus × E. lanceolatus), a high-value aquaculture commodity in Indonesia. The experimental design employed was a Completely Randomized Design (CRD) with three treatments: commercial feed without vitamin C (control), feed supplemented with 20,000 ppm of vitamin C, and feed supplemented with 40,000 ppm of vitamin C, each with three replicates. The key parameters observed included weight gain, specific growth rate (SGR), and survival rate (SR) of the fish during a 30-day rearing period. The results revealed that the addition of vitamin C to the commercial feed had a statistically significant effect on both weight gain and SGR (p < 0.05), where the 40,000 ppm treatment produced the highest mean weight gain (7.12 grams) and SGR value (0.0765%). Although survival rate did not differ significantly among treatments (p > 0.05), the group receiving 40,000 ppm of vitamin C still achieved the highest survival rate of 100%. Water quality parameters, including temperature, pH, salinity, dissolved oxygen, and ammonia, remained within optimal ranges throughout the experiment in accordance with marine aquaculture standards. Based on these findings, it can be concluded that vitamin C supplementation, particularly at a concentration of 40,000 ppm, is highly effective in promoting growth performance and maintaining high survival rates of cantang grouper under controlled aquaculture conditions.

A REVIEW OF PHYTOPLANKTON AS A GLOBAL CLIMATE CONTROLLER

2025-06-16T01:42:30+00:00

Climate change and global warming are currently major topics being tackled in international forums. This paper was written using a literature review methodology. A literature review is a national or worldwide literature search that is conducted with multiple sources of information to bolster the writing that is being done. The process involves reading through, summarizing, and considering the author's perspective on a number of library resources (books, articles, the internet, and other sources). Findings: The marine and fisheries industry is particularly affected by climate change, with fishermen suffering the most as a result of unpredictable weather and waves that prevent them from going to sea. Coastal towns are also susceptible to climate change-related disasters. The main benefit of phytoplankton is that it helps mitigate the severe effects of climate change. The availability of an enormous amount of O2, which may have a favorable effect, is the advantage we can sense