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RESPON TANAMAN KACANG TANAH (Arachis hypogaea L.) PADA BERBAGAI APLIKASI PUPUK N DAN KOMPOS AZOLLA Mulyanto, Febri Dwi; Suminarti, Nur Edy; Sudiarso, Sudiarso
Jurnal Produksi Tanaman Vol 6, No 5 (2018)
Publisher : Jurusan Budidaya Pertanian Fakultas Pertanian Universitas Brawijaya

Tanaman kacang tanah termasuk tanaman palawija yang berumur pendek dan cepat menghasilkan. kebutuhan hasil panen kacang tanah di Indonesia belum mencukupi kebutuhan konsumen, karena lahan penanaman kacang tanah di indonesia masih terbatas. Berdasarkan pada kenyataan ini, maka produktivitas kacang tanah perlu ditingkatkan. Penggunaan pupuk kompos azolla yang dikombinasikan dengan pupuk N diharapkan mampu memperbaiki sifat kondisi tanah serta meningkatkan hasil panen tanaman kacang tanah . Tujuan dari penelitian ini adalah mempelajari respon tanaman kacang tanah pada berbagai aplikasi pupuk N dan kompos azolla dan menentukan dosis pupuk N dan kompos azolla yang optimum untuk pertumbuhan dan hasil tanaman kacang tanah yang di tanam di lahan kering. Penelitian dilaksanakan pada bulan Agustus 2015 hingga Desember 2015 di Kebun Percobaan Fakultas Pertanian Universitas Brawijaya, di Desa Jatikerto, Kecamatan Kromengan, Kabupaten Malang. Penelitian menggunakan rancangan acak kelompok dengan kombinasi kompos azolla + pupuk N yang terdiri dari 12 macam perlakuan, Masing – masing perlakuan diulang sebanyak 3 kali. Dari hasil penelitian didapatkan pemberian dosis 100 % Azolla + 75 % N memberikan pengaruh yang nyata pada parameter pertumbuhan seperti luas daun, bobot segar total tanaman dan bobot kering total tanaman. Pemberian berbagai % azolla + % pupuk N memberikan hasil yang tidak berbeda nyata pada parameter jumlah cabang tanaman, bobot kering total tanaman, jumlah polong tanaman saat panen, bobot kering polong panen,bobot 100 biji , dan hasil ton ha-1.Berdasarkan hasil analisis usaha tani perlakuan 100 % Azolla + 75 % N memberikan nilai B/C sebesar 2,23 dan termasuk penelitian yang layak untuk dilanjutkan.

PENGARUH PERBEDAAN DIAMAETER TELUR Chelonia mydas (LINN. 1758) TERHADAP DAYA TETAS TELUR DENGAN MENGGUNAKAN Automatic Turtle Egg Incubator (MATICGATOR) H Hendra; Vian Dedi Pratama; S Sunardi; Zaenal Abidin; M Mulyanto; S Sukandar
Jurnal Kelautan Vol 13, No 1: April (2020)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

ABSTRACTGreen Turtle (Chelonia mydas) is one of the animals that have been listed on the International Union for the Conservation of Nature (IUCN) as one of the species that are endangered and protected. Pokmaswas Indah Lestari does conservation with semi-natural hatchery. The program has not been maximized so that the BPP (Agency for Research and Community Service) from Faculty of Fisheries and Marine Sciences, Brawijaya University is create The MATICGATOR. MATICGATOR hatching percentage is higher than semi-natural hatchery. The research intend to enhance the functionality of MATICGATOR. This research used 75 samples of turtle eggs from 5 mains green turtle (chelonian mydas). The first incubation period is 45 days and the second is 66 days. Based on the results of the research, there is a positive correlation between the differences of diameter to the percentage of turtle eggs hatching success. The highest correlation obtained at mains E to 51.1% and the lowest correlation to the mains C to 15.7%. Percentage hatching on MATICGATOR is 80%.Keywords: Diameter eggs, Green Turtle, percentage of hatchingABSTRAKPenyu hijau (Chelonia mydas) merupakan salah satu jenis hewan yang sudah tercantum di International Union for The Conservation Nature (IUCN) sebagai salah satu species yang rentan dan wajib dilindungi. Pokmaswas Indah Lestari melakukan konservasi dengan penetasan semi-alami. Program tersebut belum maksimal sehingga Badan Penelitian dan Pengabdian Masyarakat Fakultas perikanan dan kelautan, universitas brawijaya menciptakan MATICGATOR. Prosentase penetasan maticgator lebih tinggi dari pada penetasan semi-alami. Penelitian ini bertujuan untuk menyempurnakan fungsi Maticgator. Penelitian ini menggunakan 75 sampel telur dari 5 induk penyu hijau (Chelonian mydas). Masa inkubasi pada penetsan pertama 45 hari dan penetasan kedua 66 hari. Berdasarkan hasil penelitian ditemukan bahwa terdapat korelasi positif antara perbedaan diameter telur penyu terhadap prosentase penetasan. Korelasi tertinggi didapat pada induk E sebesar 51,1% dan korelasi terendah pada induk C sebesar 15,7%. Prosentase penetasan pada MATICGATOR adalah sebesar 80%.Kata kunci: Diameter telur, Penyu Hijau, Prosentase penetasan

HEAVY METAL Pb CONTENT IN THE SEAWATER, SEDIMENT AND GREEN MUSSEL TISSUE Perna viridis M. Gandri Haryono; . Mulyanto; Yuni Kilawati
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 9 No. 1 (2017): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Accumulation of heavy metal Pb into the tissue can proceed through a food chain or environmental exposure. This study was to determine the content of heavy metals Pb in water, sediments and mussels (perna viridis). This research was conducted in March 2016, in the waters of Lekok Pasuruan at the three stations. TPI Station 1, Station 2 at the mouth of the Rejoso river and station 3 nearby PLTU 3. The water, sediments and green mussels (Perna viridis) samples were collected for Pb analysis using Absorpotion Atomic Spectrophotometer (AAS). In addition to the water quality such as salinity, temperature, DO and pH was observed. The results showed the highest Pb content in the water (0.4444 mg/l), sediment (23.8284 mg/kg) and green mussel tissue (1.5098 mg/kg) were found at station 2 (Rejoso river mouth). The Pb content in green mussel seemed to above safety level to consume.

Studi komunitas Kepiting Biola (Uca sp.) Pada Ekosistem Mangrove di Kawasan Mangrove Curahsawo Probolinggo, Jawa Timur Agung Riswandi; Endang Yuli H; Mulyanto Mulyanto
Samakia : Jurnal Ilmu Perikanan Vol 10 No 1 (2019): Samakia: Jurnal Ilmu Perikanan
Publisher : Faculty of Science and Technology University Ibrahimy

Fiddler crab (Uca sp.)one of the crabs that inhabit the intertidal area, especially around the mangrove forest research was conducted in the mangrove areas Curahsawo, district of Gending, Probolinggo, East Java in April 2017. The aim of this study is to determine the structure community violin crabs in the mangrove areas Curahsawo Probolinggo. The measured parameters namely pH, soil organic matter and soil texture. Sampling point there are three stations, namely station 1 is mangrove area, station 2 is in the pond area, the station 3 is the estuary area. Results of measurement of environmental quality at the location of research is soil pH among 7.09 to 8.03, soil organic matter among 1.027% to 3.106%, and the type of soil is sandy clay and dusty clay. fiddler crabs are found in mangrove ecosystem Curahsawo there are 6 types of Uca rosea, Uca lactea, vocans Uca, Uca perplexa, dussumieri Uca, Uca demani. The highest density of crabs is Uca perplexa as much as 16 ind/m2, the lowest type of Uca demani 4 ind/m2. Value diversity fiddler crabs in mangrove ecosystem Sawo relatively standart is 1,56. The value of existing dominance is 0,96. Index violin crab distribution patterns in the Mangrove Ecosystem Munitions Sawo is uniform for Uca lactea, Uca vocans, Uca dussumieri , Uca demani and clumped to Uca rosea and Uca perplexa. The result of the spread of fiddler crab to the type of soil texture is very visible on the Uca perplexa since spread across all points of soil sampling with the number 6 ind/m2 to 16 ind/m2 in the texture of clay and sandy loam.

Analysis of Food Composition of Yellowstripe Trevally (Selaroidesleptolepis) In Paciran Waters, Lamongan, East Java Dwi Candra Pratiwi; Defri Yona; Mulyanto Mulyanto; Yusrina Rizqi Amalia
Research Journal of Life Science Vol 3, No 2 (2016)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Brawijaya

Paciran is one of the regions in East Java with great fisheries potential. Yellow Stripe Trevally is well known for its abundance in waters and categorized as high economic value within fisheries commodity. The abundance of yellow stripe trevally highly depends on food availability within its living habitat. The aim of this study was to analyze yellow stripe trevally food composition and its relationship with plankton abundance. The result of this study shows that phytoplankton abundance (21,600x103cell/m3) was found higher than zooplankton abundance (9.093x103ind/m3). The highest abundance of phytoplankton was found in Bacillariophycae (21,552x103 cell/m3) and the lowest was found in Coscinodiscophyceae (48.197x103 cell/m3). Between two classes of zooplankton found in this study, the abundance of Maxillopoda class (8.184x103ind/m3) was found higher than Oligotriceae class (0.909x103ind/m3). The composition of plankton in the stomach of yellow stripe trevally have similar pattern with the compositions of plankton in the waters.Based on the calculation of electivity index, there were seven genus that have a value 0<Ei<1 and it was considered as food options of yellow stripe trevally. The selected food compositions were devided into six genus of phytoplankton, those were Asterolampra sp, Coscinodiscus sp, Cyclotella sp, Dinophysis sp, Oscillatoria. sp, Pleurosigma sp, Prorocentrum sp, and a zooplankton genus, Calanus sp. The result of main component analysis shows that water clarity parameter had significant impact on the water quality, while pH was correlated with phytoplankton abundance within in the Paciranwaters.

The Effects of Fiddler Crabs (Uca sp) on C/N Ratio and Redox Potential of Soil in Mangrove Ecosystems Mulyanto Mulyanto; Herwati Umi
Research Journal of Life Science Vol 3, No 2 (2016)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Brawijaya

Research has been done in Ketapang mangrove area of Probolinggo city in months of September-November 2015. The objectives are to observe the fiddler crab community stucture and to analyze the effects of fiddler crabs on C/N ratio and redox potential of soil in mangrove ecosystems. The samples of fiddler crabs were taken during the low tides at 4 station (20 transects with sizes of 1 m2). Data of the fiddler crabs were measured from the soil digging insides the transect. The soil samples were taken from these crab holes wall (at the surface and at the depth of 20 cm), under the holes at the depth of 40 cm as well as from the locations that undwells by these animals at the same depth. The fiddler crab identified are U. Triangularis between 2 – 6 ind/m2, U paradussumieri 1 – 3 ind/m2, U perplexa 14 – 32 ind/m2, U dussumieri 12 – 27 ind/m2 and U. Tetragonon 3 – 6 ind/m2. The diversity is moderate (H = 1.7) and the dominance index was low (C = 0.37). C/N ratio soil were inhabited by fiddler crab between 6 – 14, the undwelled area were 14 – 20. Soil C/N ratio was inhabited by the fiddler crab at the surface and depth of 20 cm in average of 9 cm while at 40 cm in avergae of 12. The low of C/N ratio at surface and depth of 20 cm causing the organic matter turnover faster because the high nitorgen content. Soil potential redox (Eh) the undwelled areas was found –0.647 mV, meanwhile the soil Eh in the dwelled areas was positive (0.68 till 0.87 mV). This mean, the decpmposition was occured during aerobic condition and will produce untoxic subtances.

Biodiversitas dan sebaran mikroalga berbasis sistem informasi geografis (SIG) di Perairan Selatan Kabupaten Malang, Jawa Timur Umi Zakiyah; Mulyanto Mulyanto
Depik Vol 9, No 3 (2020): December 2020
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

The coastal region is a meeting point of land and sea. The coastal area utilization has developed intensively, which causes the sustainability or capacity of coastal ecosystems, and the pollution potential in this area exceeded due to various human activities. This condition affects the existence of microalgae, which play an important role not only in the food chain in the aquatic environment but also in humans at the end. This research was carried out in Sendang Biru Waters, South Malang Regency. The purpose of this study was to map and determine the biodiversity as well as the distribution of microalgae in coastal waters using in situ data. The data were analyzed using geographic information system techniques in the form of microalgae distribution and biodiversity maps. The results showed that the microalgae identified from the genera Chaetoceros and Navicula showing the highest frequency. The biodiversity index value at station 1 was 3,312, at station 2 was 3,184. These values indicate that the Sendang Biru waters were highly diverse in microalgae composition. The results of the temperature-water quality parameters are 27-29 ° C, salinity 32-35 ppt, and pH 7.8-8.2. The range of nitrate nutrients ranges from 0.0142 to 0.082 mg/l, while phosphate from 0.024 to 0.074 mg/l, silica showed values between 1.249 to 1.393 mg/l. Based on the analysis of chlorophyll-a, the range of chlorophyll-a values was between 1.773-1.777 mg/l. All parameters of water quality were classified as suitable for microalgae growth. Therefore, the microalgae biodiversity in this location can still be considered relatively high.Keywords:Coastal AreaBiodiversityMicroalgaeABSTRAKWilayah pesisir merupakan tempat bertemunya daratan dan lautan. Pemanfaatan wilayah pesisir secara intensif mengakibatkan terlampauinya daya dukung atau kapasitas berkelanjutan dari ekosistem pesisir dan meningkatnya potensi pencemaran pada perairan pesisir yang ditimbulkan dari berbagai aktivitas manusia. Pencemaran ini akan mempengaruhi keberadaan mikroalga yang mempunyai peranan penting bukan saja dalam rantai makanan di perairan namun manusia juga pada akhirnya. Penelitian ini dilakukan di Perairan Sendang Biru, Kabupaten Malang. Tujuan penelitian untuk mengetahui dan memetakan biodiversitas dan sebaran mikroalga di perairan pantai selatan Kabupaten Malang, dengan data in situ. Data dianalisis menggunakan peta yang dihasilkan dari teknik sistem informasi geografis dari biodiversitas dan sebaran mikroalga. Hasil penelitian menunjukkan bahwa mikroalga yang teridentifikasi genus Chaetoceros dan Navicula memiliki kelimpahan tertinggi. Nilai index diversitas pada stasiun 1 adalah 3,312, sedangkan pada stasiun 2 adalah 3,184. Nilai tersebut menunjukkan bahwa mikroalga di perairan Sendang Biru memiliki keanekaragaman tinggi. Hasil parameter kualitas air suhu yaitu 27-29 0C, salinitas 32-35 ppt, dan pH 7,8-8,2. Kisaran nutrien nitrat adalah 0,0142 – 0,082 mg/l, fosfat 0,024 – 0,074 mg/l, dan silica berkisar 1.249 – 1.393 mg/l. Berdasarkan hasil analisis klorofil-a didapatkan kisaran nilai klorofil-a 1,773-1,777 mg/l. Seluruh parameter kualitas air masih tergolong dalam kategori baik untuk kehidupan mikroalga sehingga dapat disimpulkan biodiversitas mikroalga di lokasi penelitian relatif tinggi.Kata kunci:Wilayah PesisirKeanekaragamanMikroalga

Biodiversitas dan sebaran mikroalga berbasis sistem informasi geografis (SIG) di Perairan Selatan Kabupaten Malang, Jawa Timur Umi Zakiyah; Mulyanto Mulyanto
Depik Vol 9, No 3 (2020): December 2020
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.9.3.17772

The coastal region is a meeting point of land and sea. The coastal area utilization has developed intensively, which causes the sustainability or capacity of coastal ecosystems, and the pollution potential in this area exceeded due to various human activities. This condition affects the existence of microalgae, which play an important role not only in the food chain in the aquatic environment but also in humans at the end. This research was carried out in Sendang Biru Waters, South Malang Regency. The purpose of this study was to map and determine the biodiversity as well as the distribution of microalgae in coastal waters using in situ data. The data were analyzed using geographic information system techniques in the form of microalgae distribution and biodiversity maps. The results showed that the microalgae identified from the genera Chaetoceros and Navicula showing the highest frequency. The biodiversity index value at station 1 was 3,312, at station 2 was 3,184. These values indicate that the Sendang Biru waters were highly diverse in microalgae composition. The results of the temperature-water quality parameters are 27-29 ° C, salinity 32-35 ppt, and pH 7.8-8.2. The range of nitrate nutrients ranges from 0.0142 to 0.082 mg/l, while phosphate from 0.024 to 0.074 mg/l, silica showed values between 1.249 to 1.393 mg/l. Based on the analysis of chlorophyll-a, the range of chlorophyll-a values was between 1.773-1.777 mg/l. All parameters of water quality were classified as suitable for microalgae growth. Therefore, the microalgae biodiversity in this location can still be considered relatively high.Keywords:Coastal AreaBiodiversityMicroalgaeABSTRAKWilayah pesisir merupakan tempat bertemunya daratan dan lautan. Pemanfaatan wilayah pesisir secara intensif mengakibatkan terlampauinya daya dukung atau kapasitas berkelanjutan dari ekosistem pesisir dan meningkatnya potensi pencemaran pada perairan pesisir yang ditimbulkan dari berbagai aktivitas manusia. Pencemaran ini akan mempengaruhi keberadaan mikroalga yang mempunyai peranan penting bukan saja dalam rantai makanan di perairan namun manusia juga pada akhirnya. Penelitian ini dilakukan di Perairan Sendang Biru, Kabupaten Malang. Tujuan penelitian untuk mengetahui dan memetakan biodiversitas dan sebaran mikroalga di perairan pantai selatan Kabupaten Malang, dengan data in situ. Data dianalisis menggunakan peta yang dihasilkan dari teknik sistem informasi geografis dari biodiversitas dan sebaran mikroalga. Hasil penelitian menunjukkan bahwa mikroalga yang teridentifikasi genus Chaetoceros dan Navicula memiliki kelimpahan tertinggi. Nilai index diversitas pada stasiun 1 adalah 3,312, sedangkan pada stasiun 2 adalah 3,184. Nilai tersebut menunjukkan bahwa mikroalga di perairan Sendang Biru memiliki keanekaragaman tinggi. Hasil parameter kualitas air suhu yaitu 27-29 0C, salinitas 32-35 ppt, dan pH 7,8-8,2. Kisaran nutrien nitrat adalah 0,0142 – 0,082 mg/l, fosfat 0,024 – 0,074 mg/l, dan silica berkisar 1.249 – 1.393 mg/l. Berdasarkan hasil analisis klorofil-a didapatkan kisaran nilai klorofil-a 1,773-1,777 mg/l. Seluruh parameter kualitas air masih tergolong dalam kategori baik untuk kehidupan mikroalga sehingga dapat disimpulkan biodiversitas mikroalga di lokasi penelitian relatif tinggi.Kata kunci:Wilayah PesisirKeanekaragamanMikroalga

Biodiversitas dan sebaran mikroalga berbasis sistem informasi geografis (SIG) di Perairan Selatan Kabupaten Malang, Jawa Timur Umi Zakiyah; Mulyanto Mulyanto
Depik Vol 9, No 3 (2020): December 2020
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.9.3.17772

The coastal region is a meeting point of land and sea. The coastal area utilization has developed intensively, which causes the sustainability or capacity of coastal ecosystems, and the pollution potential in this area exceeded due to various human activities. This condition affects the existence of microalgae, which play an important role not only in the food chain in the aquatic environment but also in humans at the end. This research was carried out in Sendang Biru Waters, South Malang Regency. The purpose of this study was to map and determine the biodiversity as well as the distribution of microalgae in coastal waters using in situ data. The data were analyzed using geographic information system techniques in the form of microalgae distribution and biodiversity maps. The results showed that the microalgae identified from the genera Chaetoceros and Navicula showing the highest frequency. The biodiversity index value at station 1 was 3,312, at station 2 was 3,184. These values indicate that the Sendang Biru waters were highly diverse in microalgae composition. The results of the temperature-water quality parameters are 27-29 ° C, salinity 32-35 ppt, and pH 7.8-8.2. The range of nitrate nutrients ranges from 0.0142 to 0.082 mg/l, while phosphate from 0.024 to 0.074 mg/l, silica showed values between 1.249 to 1.393 mg/l. Based on the analysis of chlorophyll-a, the range of chlorophyll-a values was between 1.773-1.777 mg/l. All parameters of water quality were classified as suitable for microalgae growth. Therefore, the microalgae biodiversity in this location can still be considered relatively high.Keywords:Coastal AreaBiodiversityMicroalgaeABSTRAKWilayah pesisir merupakan tempat bertemunya daratan dan lautan. Pemanfaatan wilayah pesisir secara intensif mengakibatkan terlampauinya daya dukung atau kapasitas berkelanjutan dari ekosistem pesisir dan meningkatnya potensi pencemaran pada perairan pesisir yang ditimbulkan dari berbagai aktivitas manusia. Pencemaran ini akan mempengaruhi keberadaan mikroalga yang mempunyai peranan penting bukan saja dalam rantai makanan di perairan namun manusia juga pada akhirnya. Penelitian ini dilakukan di Perairan Sendang Biru, Kabupaten Malang. Tujuan penelitian untuk mengetahui dan memetakan biodiversitas dan sebaran mikroalga di perairan pantai selatan Kabupaten Malang, dengan data in situ. Data dianalisis menggunakan peta yang dihasilkan dari teknik sistem informasi geografis dari biodiversitas dan sebaran mikroalga. Hasil penelitian menunjukkan bahwa mikroalga yang teridentifikasi genus Chaetoceros dan Navicula memiliki kelimpahan tertinggi. Nilai index diversitas pada stasiun 1 adalah 3,312, sedangkan pada stasiun 2 adalah 3,184. Nilai tersebut menunjukkan bahwa mikroalga di perairan Sendang Biru memiliki keanekaragaman tinggi. Hasil parameter kualitas air suhu yaitu 27-29 0C, salinitas 32-35 ppt, dan pH 7,8-8,2. Kisaran nutrien nitrat adalah 0,0142 – 0,082 mg/l, fosfat 0,024 – 0,074 mg/l, dan silica berkisar 1.249 – 1.393 mg/l. Berdasarkan hasil analisis klorofil-a didapatkan kisaran nilai klorofil-a 1,773-1,777 mg/l. Seluruh parameter kualitas air masih tergolong dalam kategori baik untuk kehidupan mikroalga sehingga dapat disimpulkan biodiversitas mikroalga di lokasi penelitian relatif tinggi.Kata kunci:Wilayah PesisirKeanekaragamanMikroalga

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