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All Journal Journal of Marine Research Maspari Journal Aquasains : Jurnal Ilmu Perikanan dan Sumberdaya Perairan Journal of Tropical Marine Science Jurnal Pengabdian Fakultas Pertanian Universitas Lampung Journal of Fisheries & Marine
Moh Muhaemin
Lecturer at Aquaculture Department, Faculty of Agriculture, University of Lampung
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Environmental Science Other

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Strategy of Nannochloropsis Against Environment Starvation: Population Density and Crude Lipid Contents Hudaidah, Siti; Muhaemin, Moh; ., Rosdinar
Maspari Journal : Marine Science Research Vol 5, No 2 (2013): Edisi Juli
Publisher : UNIVERSITAS SRIWIJAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (723.741 KB) | DOI: 10.36706/maspari.v5i2.2498

Abstract

Nannochloropsis sp., an unicellular marine microalgae, has potential function as a food source for fish larvae and in chemical industry. Microenvironmental conditions, especially nitrogen and salinity stress in marine ecosystems, became major factor affecting the growth of Nannochloropsis sp.The aim of the experiment was to study effect of different salinities and nitrogen dosages to the growth and lipid contents of Nannochloropsis sp. cells.The experiment was arranged in factorial with three replicates. The first factor was salinity (28 ppt and 38 ppt), and the second factor was nitrogen dosage (100% and 50%). Results of the experiments indicated that nitrogen starvation and high saline concentration affected cell density of Nannochloropsis sp. in different level. The results showed that combination treatments of nitrogen starvation and salinity reduced cell density (treatmant A, B, and D), except in treatment C. Combination of high salinity and high N dosages resulted ini steady growth of Nannochloropsis sp. These results suggest that Nannochloropsis sp. are able to overcome salinity stress (38 ppt) in the presence of optimum concentration of nitrogen in the growth cultures.The results also shows that there were no significant differences of crude lipid content between treatments and no correlation between population density and crude lipid content. These results suggest that no simple correlation between population density and crude lipid concentration. On the other hand, population density was not the only factor affected crude lipid concentration in the microalgae cell.Keyword: Nannochloropsis, population, crude lipid
Starvasi Nitrogen dan Pengaruhnya Terhadap Biomassa dan Protein Total Nannochloropsis sp. (Nitrogen Starvation Effect on Biomass and Crude Protein of Nannochloropsis sp) Muhaemin, Moh; F, Practica; S, Rosi Dona; Agustina, Tri
Maspari Journal : Marine Science Research Vol 6, No 2 (2014): Edisi Juli
Publisher : UNIVERSITAS SRIWIJAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2096.801 KB) | DOI: 10.36706/maspari.v6i2.1817

Abstract

Pengurangan nitrogen anorganik sebagai nutrien pada media kultur merupakan salahsatu metode untuk mempersingkat fase eksponensial pada kultur mikroalgae.Pengurangan nitrat anorganik pada media kultur Nannochloropsis sp hingga 50%dari konsentrasi normal pada media kultur Conwy ternyata mampu menurunkankepadatan rata-rata (sel/ml) hingga 15,16 % dan menurunkan pula kandungan proteintotal 13,93 %. Fenomena tersebut mengindikasikan bahwa pengurangan nitrogenanorganik pada media kultur berdampak negatif pada kepadatan (sel/ml) dankandungan protein total namun mampu mereduksi waktu kultur pada faseeksponensial mikroalgae Nannochloropsis sp.
The Optimasi Rendemen Minyak Mikroalga Laut Nannochloropsis sp. Menggunakan Metode Tekanan Osmotik NaCl(aq) Muhaemin, Moh; Pasa, Zelang; Ali, Mahrus
Journal of Tropical Marine Science Vol 6 No 2 (2023): Journal of Tropical Marine Science
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jour.trop.mar.sci.v6i2.3767

Abstract

Biodiesel is derived from natural fats such as vegetable or animal oils. This study uses a type of microalgae that can produce products and has the potential as biodiesel fuel, namely Nannochloropsis sp. The purpose of this study was to determine the effect of osmotic shock on the oil yield of Nannochloropsis sp. to determine the optimum osmotic shock, and to determine the composition of fatty acid content in the microalgae Nanochloropsis sp. in both wet and dry conditions. The extraction process in this study used five variations of osmotic shock, namely 0, 30, 60, 90 and 120 atm. The results showed that osmotic shock had an effect on both oil yields of Nannochloropsis sp. both in wet conditions (R=0.890 Sig<0.043) and Nannochloropsis sp. dry conditions (R=0.916 Sig<0.029). So that the higher the osmotic shock applied, the higher the yield of Nannochloropsis sp. wet and oil yield of Nannochloropsis sp. dry. then the osmotic stress of 120atm is good for extracting the oil of Nannochloropsis sp. Each result obtained is Nannochloropsis sp. wet atm 120 atm (3.96 %) and for Nannochloropsis sp. dry 120 atm (2.60 %). Results of GC Chromatogram analysis on oil yield of Nannochloropsis sp. 13 fatty acids were found including saturated fat: octanoate (C8:0), laurate (C12:0), tetradecanoate (C14:0), heptadecanoate (C17:0), arachidate (C20:0), heneicosanoate (C21:0), tricosanoate (C23:0), lignocerate (C24:0) dan lemak tak jenuh palmitoleate (C16:1), oleic (C18:1), linolelaidic (C18:2), nervonate (C24:1), dan docosahexaenoate (C22:6).
Variabilitas Konsentrasi dan Sebaran N-anorganik (Amonia, Nitrit, dan Nitrat) Terlarut di Perairan Kalianda dan Perairan Anyer-Panimbang Muhaemin, Moh; Alfya Rahmadita, Dewi; Suwiryono, Joko; Mayaguezz, Henky
Journal of Marine Research Vol 12, No 4 (2023): Journal of Marine Research
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jmr.v12i4.38566

Abstract

N-anorganik yang berdekatan dengan hatchery atau tambak, permukiman warga, dan muara sungai diduga bersebaran berbeda di perairan teluk dan perairan selat. Penelitian bertujuan untuk menganalisis sebaran horizontal, tingkat kesesuaiannya terhadap baku mutu, serta menganalisis konektivitas antara konsentrasi amonia, nitrit, dan nitrat dengan parameter fisika dan kimia non nitrogen di perairan Kalianda (perairan Teluk) dan perairan Anyer-Panimbang (menghadap Selat Sunda). Penelitian dilaksanakan di perairan Kalianda dan perairan Anyer-Panimbang pada bulan September dan Oktober 2022. Konsentrasi amonia, nitrit, dan nitrat tersebut dianalisis, dibuat sebaran horizontalnya, serta dianalisis konektivitas antar variabelnya dengan Principal Component Analysis (PCA). Hasil penelitian menunjukkan bahwa sebaran horizontal konsentrasi amonia yang cenderung tinggi didominasi oleh lokasi muara sungai di perairan Kalianda, sebaran horizontal konsentrasi nitrit yang cenderung tinggi didominasi oleh lokasi yang berdekatan dengan hatchery atau tambak di perairan Kalianda dan perairan Anyer-Panimbang, dan sebaran horizontal konsentrasi nitrat yang cenderung tinggi didominasi oleh lokasi dekat permukiman warga di perairan Anyer-Panimbang. Secara dominan, konsentrasi amonia dan nitrit di perairan Kalianda dan perairan Anyer-Panimbang di bawah baku mutu, kecuali konsentrasi nitrit di Pantai Sambolo pada perairan Anyer-Panimbang yang melebihi baku mutu, serta seluruh konsentrasi nitrat di perairan Kalianda dan perairan Anyer-Panimbang di atas baku mutu. Konsentrasi amonia, nitrit, dan nitrat berkorelasi positif dengan parameter suhu, namun berkorelasi negatif dengan parameter DO dan salinitas. Inorganic nitrogen potential sources such as hatcheries/ponds, residential areas, and estuaries may affect loading capacity of n-inorganic in bay and strait waters. The concentration distributions of ammonia, nitrite, and nitrate in the bay and strait waters may have different values. The study aims was to analyze the horizontal distribution and suitability of ammonia, nitrite, and nitrate concentrations with quality standard, and to analize the intercorrelation between the concentrations of ammonia, nitrite, and nitrate with non nitrogen physical and chemical parameters in Kalianda waters and Anyer-Panimbang waters. The study was carried out in specific location of Kalianda and Anyer-Panimbang waters in September and October 2022. The concentrations of ammonia, nitrite, and nitrate were analyzed for their concentration distributions and analyzed using the Principal Component Analysis (PCA) method. The results showed that the horizontal distribution of ammonia concentrations was dominated by location of estuary in Kalianda waters, the horizontal distribution of nitrite concentrations was dominated by location near hatchery or pond in Kalianda waters and Anyer-Panimbang waters, and the horizontal distribution of nitrate concentrations was dominated by location near residential area in Anyer-Panimbang waters. Most of ammonia and nitrite concentrations in Kalianda waters and Anyer-Panimbang waters were below of quality standards, except for nitrite concentration at Sambolo Beach in Anyer-Panimbang waters which exceed the quality standard, and all nitrate concentrations in Kalianda waters and Anyer-Panimbang waters above the quality standard. The intercorrelation between the concentrations of ammonia, nitrite, and nitrate were positively correlated with water temperature, but those have negative correlated with DO and salinity. 
Pemetaan Moluska Komoditas Ekspor dan Impor Melalui Balai Besar KIPM Jakarta I Muhaemin, Moh; Nabila, Nabila; Mayaguezz, Henky; Purnama, Muhammad Gufron; Saputra, Ishaaq
Journal of Marine Research Vol 13, No 3 (2024): Journal of Marine Research
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jmr.v13i3.42736

Abstract

Indonesia has high biodiversity and it has the opportunity to expand as fisheries business in the international commodity market. The research aims to analyze the diversity of mollusk species, map the distribution, and analyze the sustainability of these commodities in the Indonesian export and import markets. The research conducted at the Jakarta I Fish Quarantine Center for Quality Control and Safety of Fishery Products (BBKIPM) on January to February 2023. The data used comes from data available at BBKIPM Jakarta 1 on 2021 to 2022 periods. The method used is descriptive quantitative analysis. The results showed that mollusk commodities traded in exports were more diverse than imported mollusks. The most commodity classes are pelecypod (35 species), gastropods (12 species) and cephalopods (12 species). The total number of exported mollusk commodities (4,823,969.879 kg) is higher than imports (7,281.04 kg) on 2021 to 2022 periods. Mollusk exports from Indonesia spread to 44 countries on 2021 to 2022 periods. Meanwhile, mollusk imports to Indonesia only came from 2 countries (2021) and either from 1 country (2022).
THE CRUSTACEAN'S EXPORT-IMPORT MAPPING OF FISH QUARANTINE AND INSPECTION AGENCY (FQIA) JAKARTA I ON 2021-2022 PERIOD Muhaemin, Moh; Yulanda, Meisi; Ruhenda, Uhen; Efendi, Eko
AQUASAINS Vol 12, No 2 (2024): March 2024
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v12i2.p1484-1498

Abstract

Indonesia's crustacean has great potential fisheries business. The depletion of fisheries natural resources needs to be solved to avoid overfishing, especially for crustaceans. The study aim was to analyze crustacean diversity and mapping its products on export and import markets, as well as to analyze the sustainability of crustacean export-import across Indonesia. The study was conducted at FQIA Jakarta I on January until February 2023. The descriptive analysis method was used. The results of the study showed that Indonesia's fisheries export were higher than import activities. On crustacean exports, the highest destination country for lobster (Panulirus sp.) is Cina, the highest destination country for crab (Portunus pelagicus) is the USA, the highest destination country for mud crab (Scylla serrata) is Cina, and the highest destination countries for mantis shrimp (Squilla mantis) are Hongkong and Cina. Meanwhile, for imported crustaceans, snow crab (Chionoecetes opilio) came from Japan, and American lobster (Homarus americanus) came from Canada and USA. The overfishing has not occurred as illustrated for fishing grounds in Indonesia. It indicated by the average of annual catch value which has not higher than MSY catch. Keywords: Crustacea, fish market, fishing ground, annual catch, sustainable.
Peningkatan Kapasitas Kelompok Rentan Bencana (KRB) Melalui Program Sekolah Siaga Bencana (SSB) Sebagai Upaya Mitigasi Bencana di Desa Trimulyo Kabupaten Pesawaran Muhaemin, Moh; Mayaguezz, Henky; Kusuma, Anma Hari; Susanti, Oktora; Hudaidah, Siti; Efendi, eko
Jurnal Pengabdian Fakultas Pertanian Universitas Lampung Vol. 1 No. 2 (2022): Jurnal Pengabdian Fakultas Pertanian Universitas Lampung
Publisher : Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jpfp.v1i2.5847

Abstract

Bencana di kawasan pesisir dapat terjadi kapan saja dengan skala bencana dan cenderung berdampak besar bagi masyarakat terutama kelompok rentan. Amanat UU No. 24/2007 tentang Penanggulangan Bencana menyatakan bahwa kelompok rentan merupakan kelompok masyarakat berisiko tinggi, karena berada dalam situasi dan kondisi yang kurang memiliki kemampuan mempersiapkan diri dalam menghadapi risiko bencana atau ancaman bencana,  Kegiatan pengabdian kepada masyarakat dilakukan dalam upaya meningkatkan kemampuan mengidentifikasi peluang bencana di sekitarnya dan meningkatkan keterampilan penanganan diri untuk mengurangi resiko kebencaan yang diderita. Peningkatan kapasitas kelompok mayarakat rentan dilakukan dengan mengadakan kegiatan penyuluhan tatap muka, dan kegiatan simulasi bencana kepada sejumlah siswa sekolah dasar (SD) dan masyarakat desa setempat. Pemilihan kelompok rentan tersebut didasarkan pada kondisi demografi masyarakat setempat. Kegiatan pengabdian mendapatkan adanya peningkatan pengetahuan dan kemampuan kelompok masyarakat rentan dalam mengidentifikasi dan menangani jenis dan resiko kebencanaan di daerahnya.
Identifikasi Faktor Internal dan Eksternal Pengembangan Kawasan Tembakau 2015-2022 di Kabupaten Pesawaran Muhaemin, Moh; Susanti, OKtora; Mayaguezz, Henky; Amin, Muhammad Khaliqul; Hudaidah, Siti; Effendi, Eko; Kusuma, Anma Hari; Ramadhan, Muhammad Gilang; Lahay, Almira; Rochana, Erna
Jurnal Pengabdian Fakultas Pertanian Universitas Lampung Vol. 2 No. 2 (2023): Jurnal Pengabdian Fakultas Pertanian Universitas Lampung Vol 2 No 2, September
Publisher : Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jpfp.v2i2.7333

Abstract

Tembakau Kabupaten Pesawaran menempati posisi ke-3 terbesar (tahun 2022) di Provinsi Lampung dengan rata-rata produksi 81,0  ton dan luas areal 85 ha, namun memiliki produktivitas tertinggi sebesar 0,75 ton/ha. Tanaman tembakau di Kabupaten Pesawaran dikelola sebagai perkebunan rakyat dengan karakteristik luas lahan yang sempit, letak terpencar, bersifat padat karya, serta teknik budidaya hingga pengolahan yang bersifat tradisional dan sederhana. Namun dengan tingkat permintaan yang tinggi dan cenderung meningkat mendorong perlu dilakukannya suatu upaya analisis pengembangan usaha tembakau bagi peningkatan kesejahteraan masyarakat. Analisis meliputi kondisi terkini dan rencana aksi pengembangan usaha melalui pendekatan SWOT. Hasil analisis menunjukkan bahwa terdapat 4 faktor Penguat (Strength), 4 faktor Pelemah (Weekness), 4 faktor Peluang (Opportunity), dan 2 faktor Ancaman (Threath)
Activity Concentration of 226Ra and 232Th in Sediments and Seawater of Cirebon (Northern West Java) Muhaemin, Moh; Wahyu Retno Prihatiningsih; Mohamad Nur Yahya; Yogi Priasetyono; Anggun Dinanti Pantis; Salsabela Marisya Athariq; Murdahayu Makmur; Deddy Irawan Permana Putra; Ambar Winansi
Jurnal Ilmiah Perikanan dan Kelautan 2026: JIPK VOLUME 18 ISSUE 1 YEAR 2026 (FEBRUARY 2026, ISSUE IN PROGRESS)
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

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

Abstract

Graphical Abstract Highlight Research 226Ra and 232Th were determined in sediments and seawater of Cirebon waters. The activity of natural radionuclides varies in Cirebon waters. Natural radioactivity in sediment is relatively higher than in seawater. Natural radioactivity in sediment and seawater is comparable to other regions' levels.   Abstract 226Ra and 232Th are natural radionuclides with long half-lives, and they have a dangerous radiation exposure effect on marine biota and even humankind. This study investigates the activity concentration and horizontal distribution of natural radionuclides 226Ra and 232Th in sediments and seawater from the coastal waters of Cirebon, Indonesia, directly adjacent to the Cirebon Coal-Fired Power Station (CFPS). The activity concentrations of 226Ra and 232Th radioactivity were measured using gamma-ray spectrometry. Radioactivity analysis of 226Ra and 232Th was conducted on sediment and seawater columns. Furthermore, Ocean Data View (ODV) version 5.8.2 software was used to analyse the horizontal distribution pattern. The results showed that the highest concentrations of 226Ra and 232Th radioactivity were found in the sediment rather than the water column, even though they varied by location. The concentration activity of 226Ra and 232Th radioactivity was found to be a linear function of distance from the potential pollution source. Higher activity was detected at stations closer to the pollution source (CFPS). There was no significant effect of the depth of radionuclide distribution. Further monitoring activities at Cirebon’s CFPS should be conducted to predict and manage the impact on biota and human life.
THE INITIAL ECHINODERMS COMMUNITY STRUCTURE IN SEAGRASS BED OF MARINE TOURISM AREA: MAHITAM ISLAND AND KETAPANG BEACH, LAMPUNG Muhaemin, Moh; Priambodo, Mohammad Fadhil; Susanti, Oktora; Efendi, Eko
AQUASAINS Vol. 12 No. 1 (2023)
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v12i1.p1422-1434

Abstract

Lampung is one of national marine tourism destination. Seagrass is one of fragile coastal ecosystem and it is a habitat and feeding ground for a number of Echinoderms species.  Echinodermata are nutrient recyclers that will in turn provide benefits to the seagrass ecosystem. This research aimed to assess the community structure of Echinoderms and seagrass as well as the relationship between Echinoderms abundance, seagrass densities, and water quality in Mahitam Island and Ketapang Beach. Observations were conducted at 7 stations, namely 3 stations on Ketapang Beach and 4 stations on Mahitam Island. Observations included the type and number of echinoderms, as well as the type, number of individuals, and number of seagrasses stands. Habitat quality that was observed were included water quality such as temperature, salinity, pH, DO (dissolved oxygen), current speed, brightness, and TOM (total organic matter) and also observed substrate type at each station. The result elucidated nine species of echinoderms and 4 species of seagrasses were found in both study sites. The average value of Echinoderms diversity index in Mahitam Island and Ketapang Beach was low. The uniformity index of Echinoderms in Mahitam Island was medium and Ketapang Beach was low. The dominance index of Echinoderms on Mahitam Island was categorized as low and Ketapang Beach was considered high. There was a domination of an Echinoderms species in some stations. The association between Echinoderms abundance, seagrass density and habitat quality in both locations showed a positive relationship and was influenced by the habitat quality parameters of seagrasses.
Co-Authors Alfya Rahmadita, Dewi Ambar Winansi Amin, Muhammad Khaliqul Anggun Dinanti Pantis Anma Hari Kusuma, Anma Hari Deddy Irawan Permana Putra EFFENDI, Eko eko efendi Erna Rochana Lahay, Almira Mahrus Ali Mayaguezz, Henky Mohamad Nur Yahya Murdahayu Makmur Nabila, Nabila Pasa, Zelang Practica F, Practica Priambodo, Mohammad Fadhil Purnama, Muhammad Gufron Ramadhan, Muhammad Gilang Rosdinar ., Rosdinar Rosi Dona S, Rosi Dona Ruhenda, Uhen Salsabela Marisya Athariq Saputra, Ishaaq Siti Hudaidah Susanti, Oktora Suwiryono, Joko Tri Agustina, Tri Wahyu Retno Prihatiningsih Yogi Priasetyono Yulanda, Meisi