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Arif Rahman Hikam
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Fakultas Biologi Universitas Jenderal Soedirman Jl. dr. Soeparno No. 63 Purwokerto, Kabupaten Banyumas Kode Pos 53122
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BioEksakta : Jurnal Ilmiah Biologi Unsoed
Published by Universitas Jenderal Soedirman
ISSN : -     EISSN : 27148564     DOI : -
Core Subject : Health, Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology Veterinary
Jurnal BioEksakta menerbitkan artikel ilmiah hasil penelitian dalam bidang biologi umum termasuk Ekologi dan konservasi, Taksonomi dan Struktur, Biogeografi, Evolusi, Biodeversitas, Fisiologi dan Reproduksi, Biologi sel, Biologi Molekuler dan Genetika.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 44 Documents
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Search results for , issue "Vol 2 No 3 (2020): BioEksakta" : 44 Documents clear
Hubungan beberapa Aspek Biologi Reproduksi dengan Panjang Tubuh Ikan Palung (Hampala macrolepidota Kuhl & Van Hasselt 1823) di Waduk Panglima Besar Jenderal Soedirman Dhita Rasyida Soraya; Priyo Susatyo; Siti Rukayah
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 2 No 3 (2020): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.bioe.2020.2.3.3481

Abstract

Penelitian ini bertujuan untuk mengetahui mengetahui rasio kelamin, TKG, IKG, fekunditas, ukuran pertama kali matang gonad ikan palung (H. macrolepidota) yang tertangkap di Waduk Panglima Besar Jenderal Soedirman dan hubungan antara beberapa aspek biologi ikan palung dengan panjang tubuh. Pengambilan sampel ikan dilakukan dua kali pada November dan Desember 2017. Hasil penelitian menujukkan bahwa ikan palung di Waduk Panglima Besar Jenderal Soedirman memiliki rasio kelamin 1 : 2,82. Tingkat Kamtangan Gonad (TKG) ikan palung yang ditangkap berada pada TKG I-IV. Rata-rata ukuran pertama kali matang gonad pada ikan palung betina adalah 447,6 mm dan ikan palung jantan 295,8 mm. Fekunditas ikan palung sebanyak 841-35.896 butir. Hubungan TKG dengan panjang total pada ikan betina berkorelasi positif (r = 0,827) dan jantan memiliki korelasi positif (r = 0,566). Hubungan IKG dengan panjang total ikan betina berkolerasi positif (r = 0,670). Hubungan IKG dengan panjang total ikan jantan berkolerasi positif (r = 0,392). Hubungan fekunditas dan panjang total memiliki korelasi positif (r = 0,978)
BIO-PULPING BAGASE SEBAGAI BAHAN PEMBUATAN KERTAS DENGAN MENGGUNAKAN SPESIES JAMUR PELAPUK PUTIH DAN WAKTU INKUBASI Vio Indah Budiarti; Nuniek Ina Ratnaningtyas; Aris Mumpuni
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 2 No 3 (2020): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.bioe.2020.2.3.1798

Abstract

The Biopulping is defined as the biological process of lignin degradation by utilizing microorganisms that produce some enzymes. A microorganism which widely known in the degradation of lignin and cellulose is a group of white-rot fungi. The aims for this research to know the most effective white rot fungi species of G.lucidum, P.tuber-regium, and T.versicolor in the degradation of lignin and cellulose with different incubation time on bagasse substrate. The effectivity of biopulping indicated by the highest degradation of lignin concentration and the lowest degradation of cellulose concentration. This study used an experimental design with Completely Randomized design with a two factorial pattern. The independent variable of this study is white rot fungi species and incubation time while the dependent variable is the concentration of lignin and cellulose. The main parameter was the concentration of lignin and cellulose, supporting parameters were pH, weight loss of substrate and mycelial growth. The result showed the degradation of lignin and cellulose in all treatment. The best degradation of lignin and cellulose showed by species T.versicolor and P.tuber-regium within 30 days of incubation
Kajian Etnozoologi Biawak (Varanus salvator) dalam Bidang Kesehatan oleh Masyarakat Suku Anak Dalam (SAD) Herawati Dwi Astuti; Laelatul Mukharomah; Lailatus Shobaiyah; Novita Novita
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 2 No 3 (2020): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.bioe.2020.2.3.2797

Abstract

Lizard or known as the Asian water lizard (Varanus salvator) is one of the reptiles found in Asia, one of which is in Indonesia. In addition to being used as food, some communities use monitor lizards to treat diseases, especially those who still maintain ancestral customs and beliefs. This study aims to describe the knowledge of local indigenous peoples in utilizing monitor lizards for the treatment of diseases and integrating them with traditional conservation efforts undertaken by the community. The research uses the ethnozoology approach through the literature review method. The results showed that the local people especially Suku Anak Dalam (SAD) in Jambi used monitor lizards for the treatment of skin diseases, hypo-allergies and ringworm by burning or cooking them using cooking oil until the fat in the monitor lizards melted for ointment. However, the local people still try to maintain the balance of monitor lizards by choosing large monitor lizards that are suitable for consumption, using simple hunting tools, and domestication efforts so that the monitor lizard population is maintained in a sustainable manner. This is known because the mechanism of hypo-allergenic treatment of monitor lizard meat has the potential to reduce the effects of allergies given by allergy in the form of histamine 1.5% by 10 ml. In conclusion, the use of monitor lizards in the field of health by the local community wisely can improve conservation skills through traditional ecological knowledge (Traditional Ecological Knowledge)
Isolation and Characterization Of Arbuscular Mychorhiza Fungi from Gaharu Wood (Aquilaria spp.) Rhizosphere Dian Rachma Wijayanti; Maman Turjaman
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 2 No 3 (2020): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.bioe.2020.2.3.3090

Abstract

In the last 30 years there have been increasing demand of agarwood. Unlimited hunting of agarwood causing it become threatened species. Aquilaria spp. is the main genus producing agarwood that considered as threathened species. Conserving Aquilaria spp. as germ plasm needs is essential against destruction. Arbuscular mycorrhizal fungi (AMF) have been used as inoculant to increase the growth of Aquilaria spp., but information about the existence of AMF in Aquilaria spp. rhizosphere has not been reported. This research was carried out with objective to identify AMF from Aquilaria spp. rhizosphere. Soil and root samples from rhizosphere of Aquilaria spp. taken from four location that is: Carita (A. malaccensis), Ciapus (A. filaria), Cifor (A. crasna & A. malaccensis), and Bantar Kemang (A. beccariana, A. crasna, & A. malaccensis). Roots staining was conducted with modified Phillips and Hayman procedure (1970). Soils sample was run dry wed and placed in pot culture with Pueraria javanica as the host plant. Spore was separated from pot culture using wet sieving and decanting method continued with centrifugation. The result showed the occurrences of AMF in Aquilaria spp. roots i.e. external hypha, internal hypha, coiled hypha, arbuscules, and vesicles. All AMF colony structure found in Aquilaria spp. roots show asosiation bettwen the plant and AMF. Four species of AMF were found i.e. Glomus sp.1, Glomus sp.2, Gigaspora albida, and Dentiscutata sp. Key Words: Isolation, Arbuscule Mycorrhizae Fungi, Rhizosfer, Agarwood
Respon Penambahan Asam Humat terhadap beberapa Kandungan Senyawa Aktif Pegagan (Centella asiatica) triani hardiyati; Elly Proklamasiningsih; Iman Budisantoso
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 2 No 3 (2020): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.bioe.2020.2.3.3536

Abstract

The aim of this research is to know the respon of humic acid and some growth media on the contain of active biological substance in Centella asiatica (L.) Urb. Hopefully, through the application of humic acid in the combination of media, the growth and plant metabolism will improve to produce active biological substance as primar metabolism. The growth media used were : soil & sand (1 : 1) ; soil & husk (1 : 1 ) ; and soil & zeolite (1 : 2). The humic acid treatment were 4 concentration, 0 g/kg media, 4 g/kg media, 8 g/kg media and 12 g/kg media. The research method was Completely Randomized Design, with factorial as treatment design. The variable observed were alkaloid content, flavonoid content, the presence of terpenoid, and biomass weight. The research result showed that the high weight of biomass and alkaloid contain got in the addition of 8 g humic acid in media soil and sand. The high flavonoid contain got in addition of 4 g/kg media in media soil and zeolite. There was brawn ring in the extract analysis dissolved in chloroform, acetic acid, and strong sulfate acid.
Status Reproduksi Belut Sawah (Monopterus albus) yang tertangkap di Desa Kalitinggar, Kabupaten Purbalingga Sa'adatul Amalia; Priyo Susatyo; Sugiharto Sugiharto
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 2 No 3 (2020): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.bioe.2020.2.3.3393

Abstract

Ricefield eel is one type of fish whose habitat is in paddy fields and the eel's body does not have scales. Ricefield eel has a high protein, so it is widely consumed and sold in local and international markets. Eel reproduction is a protogynous hermaphrodite thathas a replacement cycle from female sex to the male sex. This research was conducted in the laboratory of the Faculty of Biology, Jenderal Soedirman University, by taking samples of Ricefield Eel in Kalitinggar Village, Padamara District, Purbalingga Regency. The purpose of this study was to know the relationship between GSI with a certain eel body length, as well as the gonad histology picture of rice eels in each fishing month. The results of the study as many as 54 eel catches. Ricefield eel was caught in May, June, and August 2019. Eel body length ranges from 16-35 cm with a GSI value of 0.32 – 10.36 %. There is a correlation between eels' body length toward GSI with the value p < 0.01, which was tested using Pearson correlation in the SPSS application. Based on observations using a microscope, many of the eels produced females with a body length ranges of 19-32 cm.
Aspek-aspek Reproduksi Cacing Diopatra neapolitana Di Cilacap Ita Purwati; Farida Nur Rachmawati; Eko Setio Wibowo
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 2 No 3 (2020): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.bioe.2020.2.3.3494

Abstract

Diopatra neapolitana merupakan polychaeta yang memiliki tubuh dengan struktur tabung besar. D. neapolitanan dapat dimanfaatkan sebagai pakan udang karena memiliki kandungan nutrisi yang cukup tinggi. Penggunaan D. neapolitana sebagai pakan dilakukan dengan mengambil cacing langsung dari alam sehingga dapat mengganggu keberlangsungan populasi cacing D. neapolitana di alam. Kondisi ini memerlukan adanya usaha domestifikasi dan budidaya D. neapolitana, namun informasi tentang kondisi biologis dan reproduksi yang ada masih terbatas, terutama spesies yang ditemukan di Cilacap. Penelitian ini bertujuan untuk mengetahui aspek-aspek reproduksi D. neapolitana yang dapat mendukung domestifikasi dan budidaya cacing D. neapolitana. Hasil penelitian menunjukkan nilai rasio jenis kelamin yang seimbang yaitu 1:1. Ukuran tubuh cacing betina dan jantan tidak berbeda nyata. Hasil pengamatan pada cacing betina menunjukkan rata-rata jumlah segmen 131,96 ± 28,19 buah; rata-rata berat tubuh 2.65 ± 1,15 g dan cacing berada dalam fase mature dan submature dengan diameter telur antara 199-240 µm. Cacing jantan memiliki rata-rata jumlah segmen 136,97 ± 24,51 buah; rata-rata berat tubuh 2.18 ± 1,11 g dan bentuk sperma berupa tetrad spermatid. Hasil analisis hubungan berat tubuh dan tingkat maturasi D. neapolitana menunjukkan hasil korelasi negatif dengan r= 0,009, persamaan regresi linier y= 219.868 – 0,080x; dan nilai t hitung (-0,043) < t tabel (2,07961), dan asil analisis hubungan jumlah segmen dan tingkat maturasi D. neapolitana didapat nilai r = 0,101; r2 = 1%; persamaan regresi linier y = 224.247– 0,035x; dan t hitung (-0,463) < t tabel (2,07961). Hasil analisis regresi linier menunjukkan bahwa %. Berat tubuh tidak berkorelasi positif dengan tingkat maturasi cacing D. neapolitana. Peningkatan berat tubuh tidak selalu dikuti dengan peningkatan tingakat maturasi, dan peningkatan jumlah segmen tidak selalu diikuti dengan peningkatan tingkat maturasi cacing D. neapolitana.
Perilaku Memilih Umpan Dengan Fagostimulan Yang Berbeda Pada Kecoak Jerman Blattella germanica L. (Dictyoptera: Blattellidae) Rizky Arjunnajat Aliefia; Trisnowati Budi Ambarningrum; Edi Basuki
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 2 No 3 (2020): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.bioe.2020.2.3.2007

Abstract

German cockroach (Blattella germanica L.) is one of the important residential pest insects, because of its role as a vector of disease. To reduce its population, it can be used with bait techniques. However, there was a rejection of glucose against German cockroaches against phagostimulant-based commercial bait. Therefore it is necessary to review the phagostimulant as a component of the bait to minimize failure to control German cockroaches based on bait using German cockroaches strain VCRU (Vector Control Research Unit). The first step to formulating the bait is to find the phagostimulant most sought by German cockroaches. The ingredients used as fagostimlan are sugar, durian, erythritol, and banana. The purpose of this study was to determine the behavior of choosing German cockroaches against bait with different phagostimulants and the peak of feeding activity in German cockroaches. This study used an experimental method with a Completely Randomized Design (CRD) consisting of 4 treatments giving phagostimulant and repeated 4 times divided into four test arenas. The treatment consisted of bait which each contained sugar, durian, erythritol, and banana as phagostimulants. Observation of behavior using the method of behavior sampling is recorded in continuous recording for 24 hours using a Closed Circuit Television (CCTV) camera. The parameters measured were latency, frequency, duration, and peak feeding activity of German cockroaches. The data were analyzed with ANOVA at p <0.05. The results showed that the behavior of selecting cockroaches from the VCRU strain on the bait was not significantly different (p<0.05) and was attracted to all feeds provided, but gel bait with sugar phagostimulant was the preferred bait by looking at the three parameters of latency, frequency, and duration. The results of the average latency in the VCRU strain to the durian gel for 17 minutes, the average frequency of most visits to the sugar gel in the VCRU strain by 10 times, the longest average duration of the VCRU strain gel for 1 minute 46 seconds and peak eating activity VCRU strains occur between 17:00 - 20:00.
Prevalensi dan Variasi Morfometrik Trichodina sp. pada Benih Ikan Gurami (Osphronemus gouramy Lac.) di Desa Rajapolah Tasikmalaya Wildan Mukholladun; Rokhmani Rokhmani; Edy Riwidiharso
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 2 No 3 (2020): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.bioe.2020.2.3.3220

Abstract

Gurami (Osphronemusgouramy Lac.) Is a type of freshwater fish that is widely cultivated by the people of Indonesia. The high price of gouramy is a measure of consumption and the meat is tender and tasty. In Tasikmalaya, carp farmers in the cultivation of gouramy seeds are still experiencing problems. Gouramy seeds raised to adult size experience high mortality due to ectoparasites. One of the ectoparasites was Trichodina sp. Research has been conducted aimed at 1. Knowing the prevalence of gouramy seeds that were attacked by Trichodina sp. obtained from fish farmers in the village of Rajapolah, Tasikmalaya Regency and 2. Knowing the morphometric variations of Trichodina sp. found in gouramy seeds obtained from fish farmers in Rajapolah Village, Tasikmalaya Regency. The method used in this study is a survey method. Seed gourami aged 2 weeks is use as a sample. Isolation and identification were carried out by making a range preparation and painting using a 2% AgNO3 solution. The results found that the prevalence of 88% or high, while the results of the examination of morphometric variations found 4 species of trichodina sp. namely T. Pediculus, T. Nigra, T.heterodentata, and T. Acuta.Keywords:Trichodina sp., Gourami, morphometric variations, abundance, Rajapolah
Dampak Pemanasan Global terhadap Fenologi Tanaman Kecipir (Psopocarpus tetragonolobus) dan Hubungannya dengan Serangga Pollinator Yuni Rokhdita Rahayuningtyas; Eming Eming Sudiana; Elly Proklamasiningsih
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 2 No 3 (2020): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.bioe.2020.2.3.3171

Abstract

Global warming or often referred to as global warming is a form of imbalance of ecosystems on earth due to the process of increasing the average temperature of the atmosphere, sea, and land on earth. The impact of global warming can make agricultural plants flower faster while pollinating insects are not ready so that the reproductive cycle is disrupted. Studying temperature changes as a result of global warming on an organism can be represented by an altitude gradient. The study aims to determine the effect of temperature changes on the phenology of winged bean plants (Psophocarpus tetragonolobus) which is described by the gradient of altitude and to determine the diversity of pollinator insects. The independent variable in this study is the difference in the gradient in elevation of the place, while the dependent variable is the phenology of the development of winged bean flowers and pollinator insects. The results of the study of abiotic factors showed that air temperature and sunlight intensity decreased in line with the increase in altitude from the surface of the seawater, while the humidity increased. The phenological analysis of winged bean plants showed the influence of altitude on plant height, number of leaves and branches, time of the first appearance, number of flowers and flower size as well as the diversity of pollinator insects.

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