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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1120.048 KB) | DOI: 10.21776/ub.jels.2014.004.01.04

Abstract

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
Tinjauan Hukum Positif Tentang Penjualan BBM Eceran (Studi Kasus di Kecamatan Pakong Kabupaten Pamekasan): (Studi Kasus di Kecamatan Pakong Kabupaten Pamekasan) Laili, Noer; Fatimatuz Zahroh; Mohammad Mahmudi
CBJIS: Cross-Border Journal of Islamic Studies Vol. 6 No. 2 (2024): Desember
Publisher : Fakultas Tarbiyah dan Ilmu Keguruan, IAI Sultan Muhammad Syafiuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37567/cbjis.v6i2.4970

Abstract

Undang-Undang Kebijakan izin usaha niaga minyak dan gas (BBM) yang saat ini sedang diterapkan oleh pemerintah ialah kewajiban berbadan usaha dan izin dari pemerintah terhadap setiap kegiatan usaha niaga BBM. Namun, dalam kenyataannya masih terdapat pedagang BBM yang tidak memiliki izin dari pemerintah salah satunya di Kecamatan Pakong Kabupaten Pamekasan. Maka peneliti, ingin mengetahui sejauh mana para pedagang BBM eceran menaati Undang-Undang Nomor 22 Tahun 2001. Penelitian ini bertujuan untuk mengetahui tinjauan Hukum positif terhadap pedagang BBM Eceran dan untuk mengetahui penyebab maraknya pedagang BBM Eceran di Kecamatan Pakong. Jenis penelitian ini adalah normatif empiris dimana objek penelitiannya di Kecamatan Pakong yang dianalisis mengggunakan hukum positif, sehingga pendekatan yang digunakan adalah hukum positif. Penjualan BBM Eceran merupakan penjualan yang tidak didasarkan pada aturan pemerintah, dimana semua bentuk usaha terutama penjualan BBM eceran harus mandapatkan izin operasional dari pemerintah. Keberadaan pom mini atau pertamini yang berada di Kecamatan Pakong merupakan tindakan yang melanggan terhadap UU No. 22 Tahun 2001 yang berbunyi bahwa yang bisa melakukan transaksi penjualan BBM di Indonesia adalah badan usaha resmi bukan usaha milik perseorangan. Di samping itu, maraknya pedagang BBM Eceran disebabkan kurangnya pengawasan, sosialisasi rutin pemerintah, dan tidak adanya tindakan tegas pemerintah sehingga masyarakat tidak mengetahui aturan operasionalnya. Di samping itu, besarnya keuntungan yang diperoleh menjadi faktor pendukung maraknya keberadaan pertamini di masyarakat.
Dynamics of Water Quality for Vannamei Shrimp Cultivation in Intensive Ponds in Coastal Areas Rizky Kusma Pratiwi; Mohammad Mahmudi; Abdul Rahem Faqih; Diana Arfiati
Jurnal Penelitian Pendidikan IPA Vol 9 No 10 (2023): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i10.4322

Abstract

Cultivators increase production using intensive cultivation which applies stocking densities and feeding in high quantities, which triggers a decrease in water quality, both cultivation water and cultivation wastewater because it contains high levels of organic matter. Changes in water quality have an impact on plankton community structure. This research aims to determine the dynamics of the physical, chemical, and biological quality of cultivation media water and the disposal of vaname shrimp cultivation waste in Ujungpangkah District, Gresik Regency. The research was conducted in January 2023 using a survey method. Water and plankton samples were taken from reservoirs, ponds, and pond waste disposal sites. Sampling was carried out in vaname shrimp cultivation ponds in the Coastal Area of ​​Ujungpangkah District, Gresik Regency. The physical and chemical quality of water has a pattern of changes up and down but is relatively the same and stable every week. All of these water quality parameters show a pattern of change that is quite good for the growth of vaname shrimp, but in waste disposal, the parameters for nitrate, phosphate, ammonia, and TOM are above the quality standards. The highest abundance of plankton is in waste dumps, with the highest phytoplankton coming from the Bacillariophyta phylum (49%), while zooplankton comes from the Rotifera phylum (54%). Regular monitoring of water quality in ponds and waste disposal sites is required so that it remains stable and safe for the environment.
Penentuan Status Mutu dan Tingkat Pencemaran Air di Sungai Bango, Kota Malang, Jawa Timur: Determination of Water Quality Status and Pollution Level in Bango River, Malang City, East Java Gisela Manda Agustina; Mohammad Mahmudi; Buwono, Nanik Retno
Water and Marine Pollution Journal: PoluSea Vol. 2 No. 2 (2024): Water and Marine Pollution Journal: PoluSea October 2024
Publisher : Faculty of Fisheries and Marine Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.polusea.2024.002.02.2

Abstract

Berkurangnya ketersediaan sumber air bersih disebabkan oleh pencemaran di sungai – sungai sebagai salah satu sumber air bersih di permukaan. Secara administrasi DAS Bango meliputi tiga wilayah, yaitu Kota Malang, Kabupaten Malang, dan Kota Batu. Keberadaan Sungai Bango sangat penting bagi masyarakat sekitar sungai, seperti digunakan untuk keperluan mandi, masak, irigasi, dan lain – lain. Tujuan dari penelitian ini yaitu mengetahui kondisi kualitas air dan menentukan status mutu air di Sungai Bango. Metode yang digunakan untuk menentukan tingkat pencemaran yaitu menggunakan metode STORET. Data yang digunakan yaitu data primer dan data sekunder. Data primer didapatkan dari hasil wawancara dengan pihak Instansi Dinas Lingkungan Hidup dan data sekunder didapatkan dari hasil pengukuran kualitas air Sungai Bango pada tahun 2020 sampai dengan tahun 2022 dari Dinas Lingkungan Hidup Kota Malang. Pengukuran kualitas air dilakukan pada 3 titik stasiun dengan waktu pengambilan sampel yaitu pada bulan April – Juni untuk setiap tahunnya. Parameter kualitas air yang digunakan berupa parameter fisika yaitu suhu berkisar antara 23,7 – 29,9°C, Total Suspended Solid (TSS) berkisar antara 3,8 – 98,3 mg/L, parameter kimia yang digunakan yaitu pH berkisar antara 6,46 – 8,4, Dissolved Oxygen (DO) berkisar antara 4 – 7 mg/L, Biological Oxygen Demand (BOD) berkisar antara <1,83 – 5,44 mg/L, Chemical Oxygen Demand (COD) berkisar antara <3,492 – 51,38 mg/L. Berdasarkan analisis data kualitas air menggunakan metode STORET didapatkan hasil bahwa perairan Sungai Bango berdasarkan rata – rata perhitungan metode STORET tergolong kriteria sedang dengan status tercemar sedang (Kelas C). Golongan kualitas air kelas C termasuk dalam kategori air yang digunakan untuk keperluan perikanan dan peternakan.   The reduced availability of clean water sources is caused by pollution in rivers as one of the sources of clean water on the surface. Administratively, the Bango watershed covers three regions, namely Malang City, Malang Regency, and Batu City. The existence of Bango River is very important for the community around the river, such as used for bathing, cooking, irrigation, and others. The purpose of this study is to determine the condition of water quality and determine the status of water quality in Bango River. The method used to determine the level of pollution is using the STORET method. The data used are primary data and secondary data. Primary data is obtained from interviews with the Dinas Lingkungan Hidup and secondary data is obtained from the results of Bango River water quality measurements in 2020 to 2022 from the Dinas Lingkungan Hidup of Malang City. Water quality measurements were carried out at 3 station points with sampling times in April - June for each year. The water quality parameters used are physical parameters, namely temperature ranging from 23.7 - 29.9°C, Total Suspended Solid (TSS) ranging from 3.8 - 98.3 mg/L, chemical parameters used, namely pH ranging from 6.46 - 8.4, Dissolved Oxygen (DO) ranging from 4 - 7 mg/L, Biological Oxygen Demand (BOD) ranging from <1.83 - 5.44 mg/L, Chemical Oxygen Demand (COD) ranging from <3.492 - 51.38 mg/L. Based on the analysis of water quality data using the STORET method, the results show that the waters of the Bango River based on the average calculation of the STORET method are classified as medium criteria with moderately polluted status (Class C). Class C water quality groups are included in the category of water used for fisheries and livestock purposes.
Deteksi Bakteri Salmonella sp sebagai Bioindikator pada Budidaya Udang Vaname di Pesisir Probolinggo: Detection Bacteria of Salmonella sp as Bioindicators in Vaname Shrimp Farming in Coastal Probolinggo Musa, Muhammad; Mahmudi, Mohammad; Lestari, Astri
Water and Marine Pollution Journal: PoluSea Vol. 2 No. 2 (2024): Water and Marine Pollution Journal: PoluSea October 2024
Publisher : Faculty of Fisheries and Marine Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.polusea.2024.002.02.3

Abstract

Perairan pesisir Probolinggo menjadi salah satu sumber air baku untuk media budidaya udang vaname. Kasus penolakan hasil produksi udang yang diekspor karena teridentifikasi adanya bakteri Salmonella sp yang dapat berasal dari perairan budidaya. Hal ini telah banyak terjadi dikarenakan bakteri merupakan salah satu indikator keamanan pangan Keberadaan bakteri Salmonella sp tersebar di perairan dimana menjadi habitat dari udang vaname yang dibudidayakan. Tujuan penelitian adalah untuk mengetahui keberadaan bakteri Salmonella sp pada perairan pesisir Probolinggo sebagai bioindikator kegiatan budidaya udang vaname pada air di pesisir Probolinggo dan mengetahui kondisi parameter fisika-kimia perairannya. Penelitian menggunakan metode survei dengan pengukuran dilakukan secara insitu dan eksitu. Hasil penelitian diperoleh rata-rata total bakteri Salmonella dengan tiga kali pengambilan sampel di 5 stasiun pada kisaran 136,67 – 5025,33 CFU/ml dan dikatogerikan telah perairan telah tercemar bakteri Salmonella. Kadar bakteri Salmonella di 5 stasiun tidak berbeda nyata dan hasil pengukuran parameter suhu (30 – 32°C), pH (7,48 -7,59), oksigen terlarut (5,53 - 7,23 mg/L), salinitas (16,33 – 28,33 ppt), nitrit (0,0037 - 0.0121 mg/L), amonia (0,0565 - 0.1119 mg/L), dan total bahan organik (31.18 - 56.04 mg/L) menunjukkan nilai optimal dan masih sesuai dengan standar baku mutu air sumber budidaya udang vaname.   The coastal waters of Probolinggo are one of the sources of water supply for vaname shrimp farming media. Cases of rejection of exported shrimp production results due to the identification of Salmonella sp bacteria that can originate from cultivated waters. This has happened a lot because bacteria are one of the indicators of food safety. The presence of Salmonella sp bacteria is spread in waters where the habitat of cultured vaname shrimp. The purpose of the study was to determine the presence of Salmonella sp bacteria in the coastal waters of Probolinggo as a bioindicator of vaname shrimp farming activities in water in coastal Probolinggo and determine the condition of physico-chemical parameters of its waters. The study used a survey method with measurements taken insitu and exitu. The results obtained the average total Salmonella bacteria with three sampling times at 5 stations in the range of 136.67 - 5025.33 CFU/ml. . Salmonella bacteria levels at 5 stations were not significantly different and the measurement results of temperature parameters (30 - 32°C), pH (7.48 -7.59), dissolved oxygen (5.53 - 7.23 mg/L), salinity (16.33 - 28.33 ppt), nitrite (0.0037 - 0.0121 mg/L), ammonia (0.0565 - 0.1119 mg/L), and total organic matter (31.18 - 56.04 mg/L) showed optimal values and were still in accordance with the water quality standards for vaname shrimp culture sources.
Pemanfaatan Diatom sebagai Bioindikator Kualitas Perairan di Mangrove Muara Bajulmati, Kabupaten Malang: The Utilization of Diatoms as Water Quality Bioindicators of Mangrove at Bajulmati Estuary, Malang Regency Mahmudi, Mohammad; Musa, Muhammad; Elradinan, Naura Shofi; Lusiana, Evellin Dewi
Water and Marine Pollution Journal: PoluSea Vol. 2 No. 2 (2024): Water and Marine Pollution Journal: PoluSea October 2024
Publisher : Faculty of Fisheries and Marine Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.polusea.2024.002.02.5

Abstract

Ekosistem mangrove adalah salah satu ekosistem di kawasan pesisir yang memiliki peran krusial bagi lingkungan. Pemantauan terhadap kondisi perairan mangrove sangat penting dilakukan guna menjaga keberlanjutannya. Salah satu bioindikator yang dapat digunakan untuk tujuan ini adalah diatom. Penelitian ini bertujuan untuk menganalisis komposisi diatom di berbagai habitat (akar, kolom air dan sedimen mangrove) dan memanfaatkan mikroorganisme ini sebagai agen bioindikator pencemaran di ekosistem mangrove Muara Bajulmati. Kegiatan penelitian dilaksanakan selama Maret hingga April 2024 di tiga stasiun pengambilan sampel. Data yang dikumpulkan meliputi komposisi diatom dan hasil pengukuran parameter kualitas air fisika dan kimia. Analisis data yang digunakan adalah indeks keanekaragaman, indeks keseragaman dan indeks dominansi. Hasil penelitian menunjukkan bahwa terdapat 15 – 17 genus yang teridentifikasi pada akar, kolom air, dan sedimen mangrove Muara Bajulmati. Kondisi perairan di lokasi penelitian juga mendukung pertumbuhan diatom secara optimal. Selain itu, berdasarkan nilai indeks biologi yang diperoleh, maka habitat kolom air dan stasiun pengambilan sampel pertama memiliki kondisi perairan yang terbaik di kawasan mangrove Muara Bajulmati.   The mangrove ecosystem is one of the ecosystems in coastal areas that has a crucial role for the environment. Monitoring the condition of mangrove waters is very important to maintain their sustainability. One bioindicator that can be used for this purpose is diatoms. This research aims to analyze the composition of diatoms in various habitats (roots, water column and mangrove sediment) and utilize these microorganisms as a bioindicator agents for pollution in the Bajulmati estuary mangrove ecosystem. Research activities were carried out from March to April 2024 at three sampling stations. The data collected includes diatom composition and measurement results of physical and chemical water quality parameters. The data analysis used is the diversity index, uniformity index and dominance index. The research results showed that there were 15 - 17 genera identified in the roots, water column and sediments of the Bajulmati estuary mangroves. Water conditions at the research location also support optimal diatom growth. In addition, based on the biological index values ​​obtained, the water column habitat and the first sampling station have the best water conditions in the Muara Bajulmati mangrove area.
Analysis of the relationship of water quality to total hemocytes in intensive ponds for vannamei shrimp (Litopenaeus vannamei) cultivation CV TTB, Pasuruan City, East Java Rahmahnia Febriyani; Muhammad Musa; Mohammad Mahmudi
Depik Vol 11, No 2 (2022): August 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.11.2.24747

Abstract

One type of shrimp that is quite potential to be developed is the vannamei shrimp (Litopenaeus vannamei). This cultivation is developing with intensive technology. This study aims to analyze the relationship between water quality and total hemocyte shrimp in vannamei shrimp aquaculture ponds. Parameters measured include physical and chemical parameters, namely temperature, brightness, pH, dissolved oxygen, TSS, BOD, ammonia. while to see the health of shrimp seen by calculating the total hemocytes (THC) of shrimp. The results showed that the overall range of water quality obtained was still in a suitable condition for cultivation activities, while the highest hemocyte value was obtained from the sample in the 3rd sampling which reached a value of 3.74 x 106 mg/l. Based on the results of the linear regression test, it was found that the TSS and BOD parameters were significantly correlated with total hemocytes in vannamei shrimp (Sig. 0.05), it can be concluded that the relationship between water quality parameters that affect total hemocyte is BOD and TSS
Optimalisasi Pembenihan Ikan Nila dengan Puddle System pada Kelompok KJA Mina Makmur Jaya Malang Muhammad Musa; Mohammad Mahmudi; Aminudin Afandhi; Dwi Ayu Lusia; Evellin Dewi Lusiana; Mawadah Ikah Hamidah; Dani Anggraini; Anugrah Fakhri Fadhlullah Mahmuda; Vella Ananda Sari; Riski Pebri Sandikah
Abdi Geomedisains Vol. 6, No. 2, December 2025
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The Mina Makmur Jaya Floating Net Cage (KJA) Group in Gampingan is a community group engaged in the breeding of Nile tilapia (Oreochromis niloticus) using the puddle system method, located in Gampingan Village, Pagak District, Malang Regency. The main problem faced in this business is the slow growth of fish fry, which results in suboptimal seed production. This condition is caused by several factors: water quality that is highly dependent on weather conditions, inappropriate breeding techniques, and inadequate nutrition or feed. The proposed solutions include conducting socialization activities and preparing a water quality management module based on Adaptive Water Management, providing water quality measuring instruments, organizing training and SOP development for seed breeding and packaging techniques, and conducting socialization on feed management for tilapia hatchery. The results of these activities showed an increase in partners’ technical skills, business management efficiency, and seed quality. In addition, outputs were produced in the form of SOPs, training modules, activity documentation, and new skills that help improve tilapia fry productivity, reduce operational costs, and expand distribution reach. Thus, this program contributes to strengthening food security, increasing economic value, and ensuring the sustainability of tilapia breeding enterprises at the local level.
Pemanfaatan Limbah Ternak Menjadi Pupuk Organik untuk Mendukung Pertanian Berkelanjutan pada Kelompok Tani Mojomakmur, Kota Batu Mohammad Mahmudi; Muhammad Musa; Evellin Dewi Lusiana; Nanik Retno Buwono; Rakhel Marsyanda Vanny Alvionita; Iren Ana Tasya
Abdi Geomedisains Vol. 6, No. 2, December 2025
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The Mojomakmur farmer group in Mojorejo Village, Junrejo District, Batu City faces the challenge of abundant goat livestock waste that has not been properly utilized, resulting in unpleasant odors and potential environmental pollution. In fact, this waste has high agronomic value when processed into organic fertilizer to support sustainable agriculture. Limited knowledge, skills, and facilities are the main obstacles hindering effective waste utilization. To address these issues, this community service program was carried out through awareness activities on the importance of livestock-waste management, training on the production of solid and liquid organic fertilizers, and the implementation of appropriate technology that farmers can apply easily and efficiently. In addition, intensive mentoring and continuous evaluation were conducted to ensure that the acquired skills can be independently implemented. This program is expected to promote more environmentally friendly waste management, increase the added value of livestock waste for farmers, and strengthen sustainable agricultural practices.
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 Anugrah Fakhri Fadhlullah Mahmuda Arief Darmawan Arief Darmawan Arsad, Sulastri Arsyadi, Sulastri Asihing Kustanti Asus Maizar Suryanto H Bambang Semedi Dani Anggraini Diana Arfiati Dini Sofarini Dwi Ayu Lusia Elradinan, Naura Shofi Endang Yuli Herawati Evelin Evellin Dewi Lusiana Evellin Dewi Lusiana Evellin Dewi Lusiana, Evellin Dewi Evellin Lusiana Fani Fariedah Fatimatuz Zahroh Fika Dewi Pratiwi Garang, Benaya Tadeus Gatut Bintoro Gisela Manda Agustina Guntur Guntur Gurinda, Gita Adistri Heri Ariadi Ikha Safitri Iren Ana Tasya Irfan Aziz Yoviandianto Jamal, Ramli Kusriani . kusriani kusriani Laili, Noer Lestari, Astri Lutfi Ni’matus Salamah Luthfatul Amaliana, Luthfatul Mawadah Ikah Hamidah Moehammad, Khibar Syiar 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 Putri, Amelia Wahyuning Putri, Cesarlia Dwi Sulestyanar putut wijanrko Rafli Wildan Ramadiansyah Rahmahnia Febriyani Rahman, Fathor Rakhel Marsyanda Vanny Alvionita Riska Ayu Lestari Riski Pebri Sandikah 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 Vella Ananda Sari Wahyudi Arif Wirastika Adhihapsari Yenny Risjani Yoviandianto, Irfan Aziz Yulma, Yulma Yuni Kilawati