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JURNAL RISET DIWA BAHARI
Published by Institut Teknologi dan Bisnis Maritim Balik Diwa
ISSN : -     EISSN : 30323177     DOI : -
Core Subject : Science, Engineering,
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Immunology & microbiology
Jurnal Riset Diwa Bahari merupakan jurnal yang diterbitkan oleh Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Institut Teknologi dan Bisnis Maritim Balik Diwa, Makassar. Jurnal Riset Diwa Bahari menerima naskah penelitian dan ulasan mengenai biologi kelautan, ekologi perairan, perikanan (budidaya ikan, penangkapan ikan, pengolahan, keanekaragaman spesies, alat tangkap), pencemaran udara, penginderaan jauh kelautan, mikrobiologi, bioteknologi, dan pengelolaan pesisir.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Perairan
Articles 10 Documents
 1 
Search results for , issue "Volume 2, Nomor 2, 2024" : 10 Documents clear
Keanekaragaman Jenis Plankton di Sungai Desa Tompobulu Kabupaten Maros Abbas, Ahmad Ashar; Hasbi, Ibnu Malkan
Jurnal Riset Diwa Bahari (JRDB) Volume 2, Nomor 2, 2024
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Institut Teknologi dan Bisnis Maritim Balik Diwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63249/jrdb.v2i2.31

Abstract

Plankton can be grouped into two, namely phytoplankton and zooplankton. The phytoplankton group is autotrophic so that it acts as a primary producer in the waters. The research location is in Tompobulu Village, Maros Regency. Data collection was taken in June 2024. The temperature at the station based on the measurement results at the station is 28°C, pH value 7.4, total suspended solids value (TSS) 51 mg/l, do (Dissolved oxygen) value 4 mg/l. The data calculated is the index of diversity, uniformity and dominance. Overall findings of this study showed: Diversity index 1,42, uniformity 0,34 and dominance index 0,38 . Plankton sampling stations show that there are 12 species of plankton, namely: Amphora sp, Cocconeis sp, Coscinodiscus sp., Cymbella sp., Gyrosigma sp., Licmophora sp., Navicula sp., Pediastrum sp., Pinnularia sp., Surirella sp. Synedra sp.1, Synedra sp.2. It can be seen from the data above that the highest cell/liter value with a value of 1,130 is Navicula sp. The lowest value of 10 cells/liter is 4 species, namely: Pediastrum sp, Amphora sp, Coscinodiscus sp and Licmophora sp. The conclusion of the study is that the level of plankton diversity in the Tompobulu river is classified as moderate with a value of 1.42, the most abundant species is Navicula sp with a total of 1130 cells/liter. The water condition that affects and does not meet the quality standards is TSS. This parameter is also what affects the condition of the plankton.
Analisis Nutrisi dan Daya Terima Konsumen terhadap Mie Ubi Jalar (Ipomoea batatas L) Berfortifikasi Rumput Laut Gracilaria sp Deserlia, Viva; Karim, Mutemainna; Jumrawati, Jumrawati
Jurnal Riset Diwa Bahari (JRDB) Volume 2, Nomor 2, 2024
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Institut Teknologi dan Bisnis Maritim Balik Diwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63249/jrdb.v2i2.32

Abstract

Making sweet potato noodle products with Gracilaria sp. seaweed fortification is one of the efforts to provide gluten-free products that are good for health and help the community optimize the selling value of seaweed. This study aims to determine the effect of Gracilaria sp. seaweed fortification on the nutritional value of protein content, water content, and gluten content of sweet potato flour and to determine consumer acceptance of sensory quality in sweet potato noodles (Ipomoea batatas L) fortified with Gracilaria sp. seaweed. This study was conducted in May-July 2024 at the Pangkep State Agricultural Polytechnic Biochemistry Laboratory. This study used an experimental method with a Completely Randomized Design (CRD). The parameters tested in this study were protein content, water content, gluten content of sweet potato flour, and sensory quality, namely: appearance, aroma, texture, and taste. Data analysis of protein content, water content, and sensory quality were analyzed using ANOVA. The results of the study showed that the highest protein content of 3.86% was found in seaweed-fortified sweet potato noodles with a concentration of 10% and the lowest protein content of 3.04% was found in seaweed-fortified sweet potato noodles with a concentration of 0% and the highest water content of 13.19% was found in seaweed fortified sweet potato noodles with a concentration of 10%. The lowest value was 11.55% The conclusion is that Gracilaria sp. seaweed fortification has a significant effect on the Nutritional Value of sweet potato noodles. The sensory quality values ​​for color, aroma, and taste with a concentration of 5% are preferred by consumers.
Analisis Indeks Morfometrik Otolith asteriscus Ikan swanggi (Priacanthus tayenus Ricardson, 1846) dari Perairan Selat Makassar Kantun, Wayan; Sapa, Sri Ainun; Wulandari, Sri
Jurnal Riset Diwa Bahari (JRDB) Volume 2, Nomor 2, 2024
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Institut Teknologi dan Bisnis Maritim Balik Diwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63249/jrdb.v2i2.29

Abstract

Purple-spotted bigeye is one of the aquatic resources which in the ecosystem functions to support the trophic level system in the food web in nature. This fish is the prey of predatory fish, so one way to prove the role of purple-spotted bigeye at the trophic level is to identify the microstructural organs located on the otolith. In this regard, this study aims to analyze the morphometric index and otolith shape index of the asteriscus type. This research is a type of quantitative research with a survey method. Sampling was carried out at fish landing sites in Paotere Makassar, Maros and Macini Baji Pangkep. The fish sampled were caught in the waters of the Makassar Strait. The research was conducted from April to June 2024. The number of samples was 92 purple-spotted bigeye with 92 pairs of asteriscus otoliths. Morphometric index calculations use small, medium and large sized fish. Meanwhile, the shape index calculation uses six descriptors which include from factor (FF), roundness (RO), circularity or compactness (C), rectangle (Rt), ellipticity (E), and aspect ratio (AR). The results of the research show that morphometrically the types of otoliths on both the right and left sides are relatively the same, the asteriscus otolith has a shape that tends to be oval, elongated, but has a regular surface shape.
Pola Pertumbuhan Ikan Swanggi (Priacanthus tayenus Richardson, 1846) di Perairan Makassar Kantun, Wayan; Permatasari, Intan; Wulandari, Sri
Jurnal Riset Diwa Bahari (JRDB) Volume 2, Nomor 2, 2024
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Institut Teknologi dan Bisnis Maritim Balik Diwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63249/jrdb.v2i2.30

Abstract

Purple-spotted bigeye is an economically important fish that is widely used by the community, resulting in intensive fishing and is thought to have caused pressure on resources which has an impact on changes in its biological structure. Based on this, research needs to be carried out to determine the size distribution, growth patterns and condition factors of Purple-spotted bigeye in the waters of the Makassar Strait. This research was carried out from April to June 2024 at the Paotere Makassar, Maros, and Macini Baji Fish Landing Sites in Pangkajene and the Islands. This research is classified as a quantitative type of research with survey methods and direct measurements in the field. The number of samples that were successfully measured was 725 fish, a combination of male and female fish with representation in small, medium and large sizes. Fish were measured to the length of the fork and weighed to determine the total weight of the fish. The results showed that the growth pattern of purple-spotted bigeye was negative allometric with b value of 1.4147 (b < 3) with length increase faster than weight increase, condition factor ranging from 0.242 to 2.837 (1.063 ± 0.379) and distribution of fork lengths around 34 .2-98.8 mm (72.44 ± 9.32 mm) with a weight ranging from 0.46-88.6 mg (34.27 ± 13.44 mg). Based on the value of the growth pattern, the purple-spotted bigeye is included in a condition of stressed resources.
Pengaruh Penambahan Kombinasi Cacing Tanah (Lumbricus rubellus) dan Singkong (Manihot esculenta) pada Pertumbuhan dan Presentase Moulting Lobster Air Tawar (Cherax quadricarinatus) Milda, Nurlatipa; Heriansah, Heriansah; Basir, Buana
Jurnal Riset Diwa Bahari (JRDB) Volume 2, Nomor 2, 2024
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Institut Teknologi dan Bisnis Maritim Balik Diwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63249/jrdb.v2i2.33

Abstract

Freshwater lobster (Cherax quadricarinatus) is a type of crustacean that has relatively fast growth, relatively easy reproduction and handling, is omnivorous and has a morphology similar to sea lobster so that it is in demand by consumers. This study aims to determine the effect of the use of a combination of earthworms and cassava feed on the growth and number of freshwater lobster moulting. The research method used is a Completely Randomized Design (CRD) with five treatments and three replications. Treatment A = 100% earthworms, B = 100% cassava, C = 75% earthworms + 25% cassava, D = 50% earthworms + 50% cassava, D = 25% earthworms + 75% cassava. The results of the study showed that the highest average Absolute Weight Gain (PBM) was obtained in treatment B (2.33 g), followed by treatment D (1.95 g), followed by treatment A (1.85 g), followed by treatment E (1.84) and the lowest in treatment C (1.76 g). The highest average Specific Growth Rate (SGR) was obtained in treatment B feed (4.09%), followed by treatment D (3.83%), followed by treatment A (3.77%), followed by treatment C (3.69%) and the lowest in treatment E (3.60%). The highest Absolute Length Gain (PPM) was obtained in feed B (1.87 cm), followed by treatment A & E feed (1.84 cm), followed by treatment D feed (1.82 cm) and the lowest in treatment C feed (1.78 cm). Survival between consecutive treatments (A=83.33%, B=90%, C=80%, D=80%, E=83.33%). The number of moulting between consecutive treatments (A=9.33%, B=10%, C=9%, D=8.33%, E=8%). The results of the analysis of variance showed that the combination of feed had no significant effect (P>0.05) on PBM, LPS and PPM of freshwater lobsters.
Pemasaran Produk Bandeng Presto dengan Menggunakan Digital Marketing pada 2 UKM Berbeda Dhana Mere, Novita Alfiana; Karim, Mutemainna; Cahyono, Indra
Jurnal Riset Diwa Bahari (JRDB) Volume 2, Nomor 2, 2024
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Institut Teknologi dan Bisnis Maritim Balik Diwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63249/jrdb.v2i2.34

Abstract

Digital marketing merupakan kegiatan promosi dan pencarian pasar melalui media digital secara online dengan memanfaatkan berbagai sarana misalnya jejaring sosial. Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan digital marketing terhadap pemasaran produk bandeng presto pada UKM Diva Bandeng dan UKM Cahaya Bandeng serta faktor-faktor apa saja yang mempenggaruhi pemasaran digital produk bandeng presto pada UKM Diva Bandeng dan UKM Cahaya Bandeng. Metode yang digunakan pada penelitian ini adalah metode kualitatif. Penelitian ini dilaksanakan pada bulan Mei sampai Juli 2024. Hasil penelitian menunjukan bahwa: 1. Digital marketing 100% sangat efektif dalam pemasaran bandeng presto UKM Diva Bandeng sedangkan bagi UKM Cahaya Bandeng menyatakan digital marketing 30% sangat efektif, 50% netral, 5% tidak begitu efektif dalam pemasaran bandeng presto terhadap UKM Cahaya Bandeng. 2. Faktor yang mempengaruhi UKM Diva Bandeng keterbatasan atau minimnya penggunaan aplikasi onlie berupa mesin pencarian (Website/google) 3,3%, marketplace (Shopee, Tokopedia, Lazada, Makole dan lainnya) 6,7%, media sosial (Whatsaap, Facebook, Instagram dan lainnya) 73,3%, rekomendasi orang lain 10% dan lainnya 6,7% sedangkan bagi UKM Cahaya Bandeng mesin pencarian (Website/google) 3,3%, media sosial (Whatsap, Facebook, Instagram dan lainnya) 66,7%, rekomendasi orang lain 20% dan lainnya 10% terhadap UKM Cahaya Bandeng.
Efektivitas Teknologi Nano dalam Menghambat Bakteri Vibrio harveyi Tusyahrah, Aulia; Alifia, Frida; Cahyono, Indra
Jurnal Riset Diwa Bahari (JRDB) Volume 2, Nomor 2, 2024
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Institut Teknologi dan Bisnis Maritim Balik Diwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63249/jrdb.v2i2.35

Abstract

Vibrio harveyi is a Gram-negative marine bacterium from the genus Vibrio known for its ability to emit light (bioluminescence). This bacterium is rod-shaped, moves using flagella at one end, has facultative anaerobic properties, and thrives in environments with high salt content (halophilic). Vibrio harveyi is often found in tropical and subtropical marine waters, especially in coastal ecosystems. Nanotechnology, which is the focus of this study, is a technology based on objects (structures) that are at the nanometer level, often used in biomedical and environmental applications. The purpose of this study was to determine the effect of SLS (nanoenzyme) in inhibiting the growth of Vibrio harveyi, which can cause disease in various marine organisms, including fish and shrimp. The method used in this study was experimental with a quantitative approach, where various concentrations of SLS were tested on bacterial growth. This study was conducted from June to July 2024, under controlled laboratory conditions. The results of this study indicate that the effect of SLS (nano enzyme) cannot inhibit the growth of Vibrio harveyi bacteria at various concentrations, namely 100%, 40%, 20%, and 10%. This is thought to be due to the particle size of the nano, where a smaller nanoparticle size can increase its effectiveness as an antimicrobial. In addition, several other methods need to be tested on SLS (nano enzyme) to understand further its ability to inhibit the growth of Vibrio harveyi bacteria, such as combining with other antimicrobial materials or modifying the nanoparticle structure.
Pengaruh Kombinasi Probiotik Komersial Dan Bahan Herbal Terhadap Volume Flok dan Pertumbuhan Ikan Nila (Oreochromis niloticus) Nursyahran, Nursyahran; Ramadhani, Arda; Mulyawan, Ardi Eko
Jurnal Riset Diwa Bahari (JRDB) Volume 2, Nomor 2, 2024
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Institut Teknologi dan Bisnis Maritim Balik Diwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63249/jrdb.v2i2.37

Abstract

Biofloc technique is a cultivation method that utilizes microorganisms, especially heterotrophic bacteria, to convert toxic inorganic nitrogen waste, such as ammonia, into biomass that is beneficial for fish. In the biofloc system, heterotrophic bacteria play an important role in the formation of flocs, which are aggregates of microorganisms and organic particles that function as additional food sources for fish. These bacteria use nitrogen from ammonia in water to produce biomass, which can then be eaten by fish. This study aims to examine the effect of a combination of commercial probiotics and herbal ingredients on the growth of tilapia (Oreochromis niloticus). The method used in this study was an experiment with a Completely Randomized Design (CRD) consisting of four treatments and three replications. The treatments tested included treatment A (control), treatment B (EM4 + Ginger), treatment C (EM4 + Kencur), and treatment D (EM4 + Turmeric). This study was conducted for 35 days at the Moncongloe Maros Aquaculture Institute, with test fish in the form of tilapia seeds measuring 5-7 cm and aged 1 month. The results showed that the combination of commercial probiotics and herbal ingredients in treatment C (Probiotic EM4 + Kencur) produced the highest floc volume of 20.17 mL, while treatment D (EM4 + Turmeric) produced the lowest floc volume of 12.04 mL. Treatment C also recorded the highest Specific Growth Rate (SGR), which was 2.90%, while treatment D recorded the lowest SGR of 2.41%. Kencur is considered to have a positive effect because of its essential oil content which functions as a sedative effect, helps fish physiology, increases growth, maximizes protein digestibility, and increases feed efficiency. Anova analysis showed that SGR had a significant effect (P<0.05), while absolute length growth and survival rate did not show significant differences between treatments (P>0.05).
Efektivitas Penghambatan Ekstrak Daun Chaya (Cnidoscolus aconitifolius) terhadap Bakteri Vibrio harveyi Aldiwa, Nurul Fitri; Basir, Buana; Mulyawan, Ardi Eko
Jurnal Riset Diwa Bahari (JRDB) Volume 2, Nomor 2, 2024
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Institut Teknologi dan Bisnis Maritim Balik Diwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63249/jrdb.v2i2.38

Abstract

Vibrio harveyi bacteria are one of the main causes of mass mortality in shrimp in a short time. Chaya (Cnidoscolus aconitifolius) is a common plant that grows in many places in Central America, the Yucatan Peninsula of Mexico and has been widely cultivated in tropical and subtropical areas. The purpose of this study was to analyze the content of secondary metabolites in chaya leaves as antibacterials against Vibrio harveyi and to analyze the amount of inhibition of chaya leaves against Vibrio harveyi bacteria. The method used in this study was experimental with 4 treatments with 3 replications each, namely A (500 µg/mL chaya leaf extract) B (1000 µg/mL chaya leaf extract) C (Oxytetracycline antibiotic) and D (96% ethanol). The study was conducted from June to July 2024 at the Laboratory of Parasites and Fish Diseases, Faculty of Marine Sciences and Fisheries, Hasanuddin University. The results showed that the activity of chaya leaf extract (Cnidoscolus aconitifolius) did not show inhibition against V. harveyi bacteria at concentrations of 500 and 1000 µg/mL. Likewise, 96% ethanol did not show inhibition against V. harveyi bacteria. The inhibitory activity of Oxytetracyclin showed inhibitory activity with an average inhibition size of 9.26 mm. This is thought to be due to the low sensitivity of chaya leaf extract to V. harveyi bacteria. V. harveyi is known as a bacteria with a high level of malignancy when infecting, so it is thought to require a substance with stronger inhibitory activity.
Optimalisasi Budidaya Udang Windu (Penaeus monodon) Melalui Pendekatan Teknologi dan Manajemen Terpadu di Kecamatan Labakkang Kabupaten Pangkep Nompo, Marwah; Hasanuddin, Hasanuddin; Rabi’ah, Sitti
Jurnal Riset Diwa Bahari (JRDB) Volume 2, Nomor 2, 2024
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Institut Teknologi dan Bisnis Maritim Balik Diwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63249/jrdb.v2i2.43

Abstract

The research method used is a mixed method by combining qualitative and quantitative research which aims to analyze the conditions of tiger shrimp cultivation in Labakkang District and evaluate the application of technology to improve production efficiency. The data collection techniques used are interviews and observations. Meanwhile, the data analysis techniques used in this study include descriptive analysis and inferential statistics. The results show that most farmers still rely on traditional and semi-intensive cultivation systems, which face major challenges in the form of technological limitations, fluctuations in water quality, and high operational costs. Suboptimal water circulation systems in traditional ponds lead to low dissolved oxygen levels and high accumulation of organic waste. The dissolved oxygen level in traditional ponds ranges from 3.5–4.2 mg/L, while in semi-intensive ponds, it is better, namely 4.5–5.0 mg/L. As a solution, the application of biofloc systems is proven to increase productivity and reduce feed costs. Ponds using biofloc technology showed lower ammonia levels (0.01–0.03 mg/L) compared to conventional ponds (0.05–0.08 mg/L), with an increase in production of 30% and a survival rate of 85% of shrimp. In addition, the use of water aeration and recirculation systems showed an increase in dissolved oxygen levels of up to 6.0 mg/L, which improved shrimp health and reduced mortality rates due to environmental stress. More controlled feeding efficiency was also shown to lower feed conversion (FCR) from 1.5 to 1.2, which contributed to increased shrimp growth and reduced operational costs. This study suggests the adoption of modern technology, better water quality management, and feeding efficiency to increase productivity and sustainability of tiger shrimp farming in Labakkang.

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