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All Journal Jurnal Ekonomi Pembangunan ILMU KELAUTAN: Indonesian Journal of Marine Sciences The Journal of Experimental Life Sciences (JELS) Journal of Innovation and Applied Technology Research Journal of Life Science Journal of Environmental Engineering and Sustainable Technology Indonesian Green Technology Journal Jurnal Pembangunan dan Alam Lestari ECSOFiM (Economic and Social of Fisheries and Marine Journal) Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat JFMR (Journal of Fisheries and Marine Research) Jurnal Penelitian Pendidikan IPA (JPPIPA) EnviroScienteae OLDI (Oseanologi dan Limnologi di Indonesia) Jurnal Perikanan Universitas Gadjah Mada AGROMIX Samakia: Jurnal Ilmu Perikanan Jurdimas (Jurnal Pengabdian Kepada Masyarakat) Royal Journal of Aquaculture and Fish Health DIKEMAS (Jurnal Pengabdian Kepada Masyarakat) Jurnal Varian Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Yustisi: Jurnal Hukum dan Hukum Islam Journal of Rural and Urban Community Empowerment JURNAL SAINS DAN TEKNOLOGI PERIKANAN (JIKAN) Indonesian Community Journal Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan Idealita: Jurnal Pendidikan dan Sosial Keagamaan Jurnal Perikanan HUNILA : Jurnal Ilmu Hukum dan Integrasi Peradilan

Mohammad Mahmudi

Department Of Aquatic Resource Management, Faculty Of Fisheries And Marine Science, University Of Brawijaya

Author-ID : 2556502

Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Immunology & microbiology Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Physics Public Health Social Sciences Other

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Financial Feasibility Analysis of Shrimp Vannamei (Litopenaeus vannamei) Culture in Intensive Aquaculture System with Low Salinity Heri Ariadi; Mohamad Fadjar; Mohammad Mahmudi
ECSOFiM (Economic and Social of Fisheries and Marine Journal) Vol 7, No 01 (2019): ECSOFiM October 2019
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.ecsofim.2019.007.01.08

The prevalence of disease spread caused by improper cultivation systems causes a decrease in the productivity level of vannamei shrimp ponds. A low salinity cultivation system is one of the cultivation innovations that can be developed to reduce the spread of disease. The purpose of this study was to describe water quality status on aquatic shrimp culture and business financial feasibility in the intensive vannamei shrimp (Litopenaeus vannamei) culture with low salinity levels. The research method used was quantitative descriptive with a purposive sampling technique of data collection. The result of the research is the Water Quality Index analysis value of 110 which means it is very suitable to be used as a cultivation medium. Profitability analysis produces a profit value of Rp. 244,456,603, R/C Ratio 1.35, BEP Unit 3,797, BEP Sales Rp. 188,745,587, and Profitability 35%. Meanwhile, the financial analysis of the business found that the NPV value was Rp. 19,627,985,863, the Profitability Index was 25.43%, the IRR was 27.55%, and the Payback Period was 5 years, which meant that this business was very feasible to be developed based on its financial feasibility status criteria. So that the overall, low salinity shrimp culture is very feasible to be applied when viewed from the ecological or economic advantage, and can be used as an alternative for vannamei shrimp aquaculture in areas that have the location of a pond far from the source of marine water.

Factors Affecting Dissolved Oxygen at Bengawan Solo River: A Spatial Filtering with Eigenvector Technique Evellin Dewi Lusiana; Arief Darmawan; Sarah Hutahaean; Muhammad Musa; Mohammad Mahmudi; Sulastri Arsad
Jurnal Varian Vol 5 No 1 (2021)
Publisher : Universitas Bumigora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30812/varian.v5i1.1407

The quality of the river changes according to the development of the surrounding environment which is influenced by various human activities. Analysis of factors affecting Dissolved Oxygen (DO) at Bengawan Solo River is crucial for river management purpose and pollution control. Previous research suggested the use classic multiple linear regression. However, DO measurement were usually took place of sampling sites along the river channel. Therefore, there is a high chance that the measurements results may spatially correlated. As the consequence, the utilization of multiple linear regression technique for the dataset can be inappropriate. In this paper, we applied a modification of multiple linear regression model to incorporate with spatial autocorrelation that exist in the data by adding control variable such vector eigen to the model which known as Spatial Filtering with Eigenvector (SFE). The results showed that nitrate and nitrite were the predictor variables that have a negative and significant effect. However, the model contains spatial autocorrelation. The application of SFE technique by adding three eigenvectors as control variables in the model succeeded in making the residual model free from spatial autocorrelation. However, a new problem arose where there was a violation of the non-heteroscedasticity assumption.

ANALISIS KELIMPAHAN FITOPLANKTON BERDASARKAN KETERSEDIAAN NUTRIEN DI RANU GRATI DENGAN GENERALIZED POISSON REGRESSION Evellin Dewi Lusiana; Mohammad Mahmudi; Nanik Retno Buwono; Tisya W. Nisya
JFMR (Journal of Fisheries and Marine Research) Vol 5, No 1 (2021): JFMR VOL 5 NO.1
Publisher : JFMR (Journal of Fisheries and Marine Research)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2021.005.01.12

Fitoplankton adalah organisme akuatik yang memegang peranan penting di ekosistem perairan karena merupakan produsen utama dalam ratai makanan. Pertumbuhan fitoplankton sangat tergantung dari ketersediaan nutrient (nitrat dan fosfat) yang ada di perairan. Ranu Grati adalah danau vulkanis yang terletak di Jawa Timur yang banyak dimanfaatkan oleh masyarakat untuk berbagai aktivitas. Aktivitas-aktivitas tersebut umumnya menghasilkan bahan organik yang akan mempengaruhi konsentrasi nitrat dan fosfat sekaligus juga mempengaruhi struktur komunitas fitoplankton di perairan danau. Penelitian ini bertujuan untuk memodelkan hubungan kelimpahan fitoplankton dengan ketersediaan nutrient serta memprediksi komposisi fitoplankton berdasarkan divisi untuk mengetahui struktur komunitasnya dengan pendekatan Generalized Linear Regression. Hasil analisis menunjukkan bahwa nutrient yang berpengaruh signifikan terhadap jumlah amatan fitoplankton adalah konsentrasi fosfat, sedangkan kelimpahan fitoplankton di Ranu Grati cenderung didominasi oleh fitoplankton dari divisi Chlorophyta.

Pemetaan Distribusi Kualitas Air Untuk Mendukung Budidaya Perikanan Menggunakan Sistem Informasi Geografis, Kasus Di Sungai Brantas, Kecamatan Bumiaji Arief Darmawan; Irfan Aziz Yoviandianto; Mohammad Mahmudi
JFMR (Journal of Fisheries and Marine Research) Vol 3, No 3 (2019): JFMR VOL 3 No. 3
Publisher : JFMR (Journal of Fisheries and Marine Research)

SungaiBrantasmerupakanyang terpanjang di Propinsi JawaTimur.Air sungai ini salah satunya dimanfaatkan sebagai sumberdaya untuk kegiatan perikanan budidaya di Punten.Disisi lainberbagai aktivitasmasyarakatsekitarSungai Brantas didugaberkontribusi pada penurunankualitas air. Oleh karena itu studi ilmiah yang sistematis perlu dilakukan untuk menjawabnya. Pada bagian awal, diambil Sungai Brantas di Kecamatan Bumiaji yang termasuk dalam bagian hulu sebagai studi kasus. Dari studiini bertujuan untukmengetahuikualitasairdiSub-DASBrantastersebut menggunakananalisis STORET, kemudian untuk mengetahuipengaruhtatagunalahan(landuse) terhadap kualitas air dengan analisis spasial menggunakan perangkat lunak SIG.Hasil analisis STORET menunjukkan bahwa mutuairpadaseluruhstasiunpengamatantergolong cemarsedangdenganparameteryangmelebihibakumutuyaituTSS, amoniadantotalfosfat.Kemudian analisis SIG menghasilkanpetadistribusikualitasairdan diketahui bahwa tatagunalahanberpengaruh terhadapkualitasair.Peta distribusikualitasairini berfungsiuntukmengetahuidaerahyangterjadipenurunankualitas airdan dapat digunakan untuk menyusun rekomendasikegiatan manajemen sumberdaya perairan untuk budidaya perikanan yang berkelanjutan.

DINAMIKA POPULASI IKAN GABUS (Channa striata) DI RAWA DANAU PANGGANG, KALIMANTAN SELATAN Dini Sofarini; Mohammad Mahmudi; Asus Maizar S. Hertika; Endang Yuli Herawati
EnviroScienteae Vol 14, No 1 (2018): EnviroScienteae Volume 14 Nomor 1, April 2018
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/es.v14i1.4890

The province of South Kalimantan has the largest peat swamp that is named Danau Panggang Swamp with an area of 5,390.7 Ha. This swamp has ecological, economic and potential functions of a large fishery resource. The purposes of this study are to evaluate the exploitation rate of Snake Head Fish (Channa striata) in Danau Panggang Swamp, by population dynamic analysis using FISAT program of Von Bertalanffy method. The results showed that the growth pattern of Snake Head Fish (Channa striata) has the tendency to grow negative allometric with 63.4 cm of long infifer (L¥), growth rate (k) 0.15 per year, theoretical age at the time of the fish is equal to 0 (t0) is -1.48257 years. While the natural mortality rate (M) was 0.43, the mortality rate due to catch (F) of 0.69/year and the total mortality rate (Z) of 1.12/year, and the rate of exploitation value E = 0.62. These results indicated that the exploitation rate of Head Snake Fish (Channa striata) in Danau Panggang swamp has a tendency to overfishing.

Oxygen Consumption of Litopenaeus vannamei in Intensive Ponds Based on the Dynamic Modeling System Abdul Wafi; Heri Ariadi; Abdul Muqsith; Mohammad Mahmudi; Mohammad Fadjar
Journal of Aquaculture and Fish Health Vol. 10 No. 1 (2021): JAFH Vol 10 No. 1 February 2021
Publisher : Department of Aquaculture

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jafh.v10i1.18102

In intensive shrimp culture, oxygen consumption of shrimp is an important indicator that greatly affects the physiological condition of shrimp as a reared organism. The purpose of this study was to dynamically determine the oxygen consumption of shrimp in intensive culture as well as the variables of water quality and shrimp growth. This research was conducted with the concept of ex-post facto causal design in intensive aquaculture ponds during the shrimp cultivation period. During the shrimp culture period, the rate of oxygen consumption of shrimp is inversely related with the sigmodial average increase in shrimp body weight. Meanwhile, based on the simulation analysis with the dynamic modeling concept, it is shown that oxygen consumption was linear to the dynamics of average daily gain and inversely proportional with the increasing rate of shrimp biomass in the ponds. In addition, oxygen consumption rate of shrimp in intensive ponds had a close relationship with water salinity and total organic matter. In conclusion, dynamically, the fluctuation of oxygen consumption rate and average daily gain of shrimp in intensive culture are closely related to the stability of the water quality conditions on the shrimp habitat.

ESTIMASI DAYA DUKUNG PERAIRAN PESISIR KECAMATAN BANYUPUTIH UNTUK TAMBAK UDANG BERDASARKAN LAJU BIODEGRADASI LIMBAH Abdul Muqsith; Nuddin Harahab; Mohammad Mahmudi; Muhammad Fadjar

Publisher : Fakultas Pertanian Universitas Yudharta Pasuruan

This research was conducted in May 2018 in the coastal area of Banyuputih Subdistrict, Situbondo Regency with the aim of estimating the land area and production capacity of shrimp ponds that can be supported by Banyuputih coastal waters based on the rate of biodegradation of organic waste in the form of Total Suspended Solid (TSS). The results showed that the area of intensive ponds (stocking density of 126 birds / m2) that could be supported by waters was 39.30 hectares with shrimp production capacity of 739.72 tons / planting season, whereas for semi-intensive ponds (stocking density of 25 birds / m2) was 313.98 hectares with a maximum shrimp production capacity of 803.85 tons / planting season, and for traditional plus ponds (stocking density of 8 birds / m2) is 743.14 hectares with a maximum capacity of shrimp production of 578.90 tons / planting season. The simulation results of the three shrimp cultivation technologies (traditional plus, semi-intensive and intensive), obtained a combination of shrimp farm area that is still within the limits of environmental carrying capacity, namely: 5% (37.16 hectares) for traditional plus-tech shrimp farm land (8 tail / m2), 50% (157 hectares) for semi-intensive technology shrimp farms (25 individuals / m2), and 45% (17.69 hectares) for intensive technology shrimp farms (126 individuals / m2). The total land area of the third combination of technology is 211 hectares with shrimp production of 763.75 tons/planting season. The results of this study can be used as a reference for the development of shrimp ponds in a sustainable manner in the study area.

Optimalisasi Produksi Budidaya Benih Ikan Lele Melalui Sosialisasi Budidaya Semi-Intensif Pada Pokdakan Banturono Muhammad Musa; Evellin Dewi Lusiana; Sulastri Arsad; Aminudin Afandhi; Dwi Ayu Lusia; Mohammad Mahmudi
Jurdimas (Jurnal Pengabdian Kepada Masyarakat) Royal Vol 5, No 2 (2022): Mei 2022
Publisher : STMIK Royal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33330/jurdimas.v5i2.1294

Abstrak: Malang Regency is an area that has a lot of natural resource potential, especially in the field of fisheries, both capture fisheries, and aquaculture. One of the aquaculture activities carried out by the community in Malang Regency, especially in Bantur Village is catfish aquaculture. This aquaculture activity is experiencing obstacles, namely the large proportion of operational costs for feed (> 60%) and the incompatibility of semi-intensive aquaculture practices that are applied, in which the absence of water quality monitoring has an impact on fish growth is not optimal. The purpose of this community service activity is to provide knowledge to catfish cultivators in Bantur Village about semi-intensive aquaculture systems and the manufacture of fish feed independently through training on pellet making machine technology applications. The socialization and training activities carried out have proven to be able to increase the knowledge of cultivators so that they can become their provisions to improve the quality and quantity of aquaculture products.Keywords: catfish; self-feed production; semi-intensive aquaculture; water quality;Abstract: Kabupaten Malang merupakan wilayah yang memiliki banyak potensi sumberdaya alam terutama dalam bidang perikanan baik perikanan tangkap maupun perikanan budidaya. Salah satu kegiatan perikanan budidaya yang dilakukan oleh masyarakat di kabupaten Malang, khususnya desa Bantur adalah budidaya Ikan Lele. Kegiatan budidaya ini mengalami kendala yaitu proporsi biaya operasional untuk pakan yang besar (> 60%) dan ketidaksesuaian praktik budidaya semi-intensif yang diterapkan, di mana ketiadaan pemantauan kualitas air yang ber-dampak pada pertumbuhan ikan menjadi tidak optimal. Metode dalam penelitian ini berupa konsultasi dengan Sosialisasi dan penyuluhan tentang teknologi budidaya benih Ikan Lele menggunakan sistem semi intensif, dan Pendampingan aplikasi teknologi mesin pembuat pellet untuk men-dukung budidaya benih Ikan Lele semi intensif di Pokdakan Banturo-no Tujuan kegiatan pengabdian kepada masyarakat ini adalah untuk memberikan pengetahuan kepada para pembudidaya Ikan Lele di desa Bantur mengenai sistem budidaya semi-intensif dan pembuatan pakan ikan secara mandiri melalui pelatihan aplikasi teknologi mesin pembuat pellet. Kegiatan sosialisasi dan pelatihan yang dilakukan terbukti dapat menambah pengetahuan pembudidaya, sehingga dapat menjadi bekal mereka untuk meningkatkan kualitas dan kuantitas hasil budidaya. Kata kunci: budidaya semi-intensif; ikan lele; kualitas air; pakan mandiri.

Microalgae culture training as an effort to improve natural feed quality for shrimp seed cultivation of Benur Barokah Group Sulastri Arsad; Muhammad Musa; Evellin Dewi Lusiana; Mohammad Mahmudi; Siti Nurchotipah; Nur Aliya Nabila Zsalzsabil; Rafli Wildan Ramadiansyah
Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Vol 7, No 3 (2022): August 2022
Publisher : University of Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/abdimas.v7i3.6919

The Community Partnership Program (PKM) aims to conduct training on microalgae culture and water quality management in aquaculture ponds as an effort to improve the quality of natural feed for shrimp seeds. This activity was carried out in the Tuban Barokah Benur group in 2021. A cultivation experiment of three types of microalgae was carried out and the species was given as a natural feed for shrimp seeds. Microalgae Tetraselmis sp., Dunaliella sp., and Chlorella sp. were cultured for 7 days and tested as shrimp seed feed. The results showed that the percentage of survival of shrimp seed was highest in the containers given byTetraselmis sp. (32%). Furthermore, microalgae culture assistance activities in the Benur Barokah group used the microalgae Tetraselmis sp. carried out in Situ on a small scale. In addition, water quality tool measurement is also provided to help monitor the water quality of the tank regularly. The questionnaire results showed a positive response to training activities from Benur Barokah partners covering six aspects with a good response of 50-90%.

Identification of Coral Reefs in Mamburit Waters, Sumenep Regency Sawiya Sawiya; Mohammad Mahmudi; Guntur Guntur
The Journal of Experimental Life Science Vol. 4 No. 1 (2014)
Publisher : Postgraduate School, Universitas Brawijaya

This research was conducted in September to October 2013 in Mamburit Waters, Sumenep Regency. This study was aimed to assess the percentage of coral reefs and acknowkedge the type of the coral reefs. Coral reefs was observed with the Line Intercept (LIT) method laid parallel to the coastline in the depth of 3 m and 10 m in windward and leeward area. Total of 59.88% coral reefs lived in leeward area in 3 m depth includes in good category and the percentage of dead coral reefs and other fauna for 40.12%. In the 10 m depth, 69.19% live coral reefs include as medium category with percentage of dead coral reefs and other fauna for 30.81%. Winward location of 3 m depth has 68.38% live coral reefs in good category and percentage of dead coral reefs and other fauna for 31.62%. Whereas for 10 m depth, 40.86% of live coral reefs include as medium category with percentage of dead coral reefs and other fauna for 59.14 %. Keywords: coral reefs, leeward, windward, Mamburit

Co-Authors ., Kusriani Abdul Muqsith Abdul Muqsith Abdul Muqsith Abdul Muqsith Abdul Rahem Faqih Abdul Wafi Abdul Wafi, Abdul Afandi, Aminuddin Akhmaddin, Derry Bagus Alivia Salsabila K.T.S Aminuddin Afandi Aminudin Afandhi Andi Andi Kurniawan Andi Kurniawan Arief Darmawan Arief Darmawan Arsad, Sulastri Arsyadi, Sulastri Asihing Kustanti Asus Maizar Suryanto H Bambang Semedi Diana Arfiati Dini Sofarini Dwi Ayu Lusia Endang Yuli Herawati Evelin Evellin Dewi Lusiana Evellin Dewi Lusiana Evellin Dewi Lusiana, Evellin Dewi Evellin Lusiana Fani Fariedah Fika Dewi Pratiwi Garang, Benaya Tadeus Gatut Bintoro Guntur Guntur Gurinda, Gita Adistri Heri Ariadi Ikha Safitri Irfan Aziz Yoviandianto Jamal, Ramli Kusriani . kusriani kusriani Ludfi, Ludfi Lutfi Ni’matus Salamah Luthfatul Amaliana, Luthfatul Mohamad Fadjar Mohamad Fadjar Mohamad Fadjar MOHAMAD FADJAR Mohammad Fadjar Mr. Supriatna Muhammad Fadjar Muhammad Fadjar Muhammad Musa Muhammad Musa Muhammad Musa Muhammad Musa Muhammad Triaji Mulyanto Mulyanto Mulyanto Mulyanto Nanik Nanik Retno Buwono Nisa, Tisya Wahidatun Nisya, Tisya W. Nuddin Harahab Nur Aliya Nabila Zsalzsabil Nurdin Harahab Nurdin Harahab oktiyas muzaky Luthfi, oktiyas muzaky Pertiwi, Putri Rahayu Pramudia, Zulkisam Pratiwi, Rizky Kusma Putri, Amelia Wahyuning Putri, Cesarlia Dwi Sulestyanar putut wijanrko Rafli Wildan Ramadiansyah Rahmahnia Febriyani Rahman, Fathor Riska Ayu Lestari Rizky Kusma Pratiwi Rona Aji Lestyaningrum Ruly Isfatul Khasanah Sarah Hutahaean Satiti, Cinca Hayyu Putri Sawiya Sawiya Sihombing, Rut Suharni P Siti Nurchotipah Siwi Oktafia Sabtaningsih Soemarno Soemarno Sofi, Firuliza Nurus Sri Sudaryanti, Sri Sri Surdayanti Sugiarto, Kevin Pratama Sulastri Arsad Sulastri Arsad Supriatna Supriatna Supriatna Supriatna Supriatna Supriatna, Mr. Tisya W. Nisya Umi Zakiyah, Umi Wahyudi Arif Wirastika Adhihapsari Yenny Risjani Yoviandianto, Irfan Aziz Yulma, Yulma Yuni Kilawati

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