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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 54 Documents
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Hubungan Bahan Organik Total (BOT) Sedimen dengan Struktur Vegetasi Mangrove di Desa Bonto Bahari Kecamatan Bontoa Kabupaten Maros Isman, Muh; Irwan Achmad, Muhammad
Jurnal Riset Diwa Bahari (JRDB) Volume 2, Nomor 1, 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.v2i1.25

Abstract

Mangrove forests are a distinctive type of forest found along the coast or river estuaries. This research was conducted in October 2023 on the coast of Bonto Bahari Village, Bontoa District, Maros Regency, South Sulawesi Province. Data collection includes preparation of tools and materials to be used at the research site. Data collection of mangrove ecosystems using line transects along 100 meters then draw transect lines perpendicular to the shoreline. Furthermore, placing a quadrant plot measuring 10 meters x 10 meters at three observation stations and three repetitions of each station. To determine the category of mangrove conditions based on the Minister of Environment Decree No. 201 of 2004, the identification of mangrove species using mangrove introduction guidebook. The measurement of environmental conditions directly measured at the study site includes parameters of temperature, salinity, soil pH taken at each observation station, as well as taking sediment at each station for the measurement of Total Organic Matter (BOT) tested in the laboratory, BOT analysis was performed using the method of burning with high temperature (550oC) (loss on ignition) for 2 hours. Based on the results of the study found 4 types of mangroves namely Avicennia alba, Avicennia marina, Rhizophora mucronata, and Rhizophora apiculata. Avicennia alba mangrove has the highest density value compared to other mangrove species. The substrate found at each station is medium sediment (medium sand). The results of PCA analysis showed that mangroves in the study site were influenced by salinity, temperature, and sediment pH. Mangrove density is more influenced by the total organic matter (BOT) content of sediments.
Karakteristik Morfometrik Juvenil Ikan Baronang Totol (Sigannus guttatus) pada Akuakultur Multi Tropik Berbasis Feeding Rate Heriansah, Heriansah; Rukmini Kustam, Sri; Sahriyanti , Andi; Tri Hidayani, Mesalina
Jurnal Riset Diwa Bahari (JRDB) Volume 2, Nomor 1, 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.v2i1.26

Abstract

Information on morphometrics has been widely used for catches. This study aims to determine the morphometric characteristics of rabbitfish in a multi-trophic system cultivation based on feeding rate. Rabbitfish are maintained in an integrated manner with green mussels, sea urchins, and seaweed. The study was conducted for 6 weeks at the Laboratory of the Balik Diwa Maritime Technology and Business Institute, Makassar. Three feeding rate treatments of 5%, 7.5%, and 10% each with three replications were given to rabbitfish with a frequency of 4 times a day. During maintenance, a closed water circulation process was carried out and continuous aeration was provided in each container. The results showed that the total length at feeding rates of 5%, 7.5%, and 10% were 5.3 cm, 7.1 cm, 8.1 cm, respectively, and the standard length was 4.1 cm, 5.8 cm, and 6.7 cm, respectively. Meanwhile, the height of each body was 1.8 cm, 2.1 cm, and 2.6 cm. Analysis of variance showed that these three morphometric variables were significantly affected by feeding rate, and the three levels of feeding rate were significantly different (P<0.05). Water quality during maintenance was in the range that could be tolerated by rabbitfish. Temperature was in the range of 26.0-28.6°C, salinity 25.1-28.5 ppt, dissolved oxygen 5.2-7.1 mg/L, pH 7.6-8.0 and ammonia 0.032-0.095 mg/L. The morphometric characteristics of rabbitfish in multi-trophic system cultivation increased significantly along with the increase in feeding rate.
Analisis Mikroplastik pada Sedimen di Perairan Tamalate Kecamatan Galesong Utara Kabupaten Takalar Kabangnga, Arnold; Islamiati, Dian; Tamti, Hartati
Jurnal Riset Diwa Bahari (JRDB) Volume 2, Nomor 1, 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.v2i1.27

Abstract

The existence of microplastics will cause the environment to be disturbed because of their microscopic size so organisms very easily swallow them. This research aims to analyze the microplastic content in sediment based on type, color, shape, size, and type of microplastic polymer. The research method used is quantitative with a survey approach. Sampling was conducted using transects stretched along the coastline for 25m into the sea. Observations at each location consisted of 3 sub transects with 2 repetitions. The research results show that the forms of microplastic found in North Galesong waters are in the form of lines and fragments. A total of 2 particles are in the form of fragments and 41 are in the form of lines. Analysis of the color of the microplastics found 27 particles blue, 7 particles transparent, 8 particles red, and 1 particle green. The size of microplastics at station 1 was dominated by line shapes with sizes ranging from 0.084-0.854 mm and those in fragment form ranging from 0.222 mm, at station 2 the size of line shape microplastics ranged from 0.069-0.963 mm and fragments 0.092 mm, and at station 3 the microplastic particles were in the form of lines range from 0.063-0.693 mm. The total abundance of microplastics in North Galesong waters was 0.43 particles/gr, namely at station 1 as much as 0.11 particles/gr, station 2 as much as 0.11 particles/gr, and station 3 as much as 0.21 particles/gr. The types of polymers found at each station are polyester polymer, PAN film, isotactic polypropylene, powdered cellulose, cellulose, and cellophane.
Analisis Tingkat Kesukaan dan Daya Simpan Asinan Rumput Laut (Gracillaria sp.) Wulandari, Sri; Harianti, Harianti; Andi Lawi, Yeni Savitri; Suprianto, Suprianto; Ningsih, Nining Adia
Jurnal Riset Diwa Bahari (JRDB) Volume 2, Nomor 1, 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.v2i1.28

Abstract

Pickled Gracillaria sp. is a seaweed-based pickle. Seaweed is one of the seafood commodities that has many uses, economic value, and has a complete nutritional content. Pickled Gracillaria sp. is a form of processed diversification from seaweed, so this study aims to analyze the level of liking based on organoleptic tests, and the shelf life of processed Gracillaria sp. pickles. The processing of Gracillaria sp. into pickles and analysis of shelf life testing was carried out at the CV. LARS Production House. The research method used is quantitative descriptive method, while data analysis uses ANOVA. The results of the research on the level of favorability test based on the organoleptic test showed that the level of liking based on organoleptic tests is at 200C for texture, aroma, and taste. However, the color was preferred in the processed Gracilaria sp. at 300C. It can be seen that the majority of panelists dislike the texture, aroma, color and taste at 400C. While testing the shelf life of the anova test results showed that there was no real effect and influence on the shelf life testing of pickled products.
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.

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