Subjects -> BIOLOGY (Total: 3134 journals)
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BIOLOGY (1491 journals)                  1 2 3 4 5 6 7 8 | Last

Showing 1 - 200 of 1720 Journals sorted alphabetically
AAPS Journal     Hybrid Journal   (Followers: 27)
Abasyn Journal of Life Sciences     Open Access   (Followers: 4)
ACS Pharmacology & Translational Science     Hybrid Journal   (Followers: 3)
ACS Synthetic Biology     Hybrid Journal   (Followers: 38)
Acta Biologica Hungarica     Full-text available via subscription   (Followers: 5)
Acta Biologica Marisiensis     Open Access   (Followers: 3)
Acta Biologica Sibirica     Open Access   (Followers: 2)
Acta Biologica Turcica     Open Access   (Followers: 2)
Acta Biomaterialia     Hybrid Journal   (Followers: 32)
Acta Biotheoretica     Hybrid Journal   (Followers: 3)
Acta Chiropterologica     Full-text available via subscription   (Followers: 5)
acta ethologica     Hybrid Journal   (Followers: 7)
Acta Fytotechnica et Zootechnica     Open Access   (Followers: 3)
Acta Ichthyologica et Piscatoria     Open Access   (Followers: 5)
Acta Médica Costarricense     Open Access   (Followers: 2)
Acta Musei Silesiae, Scientiae Naturales     Open Access  
Acta Neurobiologiae Experimentalis     Open Access  
Acta Scientiae Biological Research     Open Access   (Followers: 1)
Acta Scientiarum. Biological Sciences     Open Access   (Followers: 2)
Acta Scientifica Naturalis     Open Access   (Followers: 4)
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis     Open Access   (Followers: 2)
Acta Universitatis Lodziensis : Folia Biologica et Oecologica     Open Access  
Actualidades Biológicas     Open Access   (Followers: 1)
Advanced Biology     Hybrid Journal   (Followers: 1)
Advanced Health Care Technologies     Open Access   (Followers: 12)
Advanced Journal of Graduate Research     Open Access   (Followers: 2)
Advanced Membranes     Open Access   (Followers: 7)
Advanced Quantum Technologies     Hybrid Journal   (Followers: 5)
Advances in Bioinformatics     Open Access   (Followers: 24)
Advances in Biological Regulation     Hybrid Journal   (Followers: 4)
Advances in Biology     Open Access   (Followers: 14)
Advances in Biomarker Sciences and Technology     Open Access   (Followers: 2)
Advances in Biosensors and Bioelectronics     Open Access   (Followers: 8)
Advances in Cell Biology/ Medical Journal of Cell Biology     Open Access   (Followers: 26)
Advances in Ecological Research     Full-text available via subscription   (Followers: 46)
Advances in Environmental Sciences - International Journal of the Bioflux Society     Open Access   (Followers: 17)
Advances in Enzyme Research     Open Access   (Followers: 10)
Advances in High Energy Physics     Open Access   (Followers: 26)
Advances in Human Biology     Open Access   (Followers: 9)
Advances in Life Science and Technology     Open Access   (Followers: 14)
Advances in Life Sciences     Open Access   (Followers: 6)
Advances in Marine Biology     Full-text available via subscription   (Followers: 29)
Advances in Tropical Biodiversity and Environmental Sciences     Open Access   (Followers: 5)
Advances in Virus Research     Full-text available via subscription   (Followers: 8)
Adversity and Resilience Science : Journal of Research and Practice     Hybrid Journal   (Followers: 3)
African Journal of Ecology     Hybrid Journal   (Followers: 18)
African Journal of Range & Forage Science     Hybrid Journal   (Followers: 12)
AFRREV STECH : An International Journal of Science and Technology     Open Access   (Followers: 3)
Ageing Research Reviews     Hybrid Journal   (Followers: 12)
Aggregate     Open Access   (Followers: 3)
Aging Cell     Open Access   (Followers: 23)
Agrokémia és Talajtan     Full-text available via subscription   (Followers: 2)
AJP Cell Physiology     Hybrid Journal   (Followers: 13)
AJP Endocrinology and Metabolism     Hybrid Journal   (Followers: 14)
AJP Lung Cellular and Molecular Physiology     Hybrid Journal   (Followers: 3)
Al-Kauniyah : Jurnal Biologi     Open Access  
Alasbimn Journal     Open Access   (Followers: 1)
Alces : A Journal Devoted to the Biology and Management of Moose     Open Access  
Alfarama Journal of Basic & Applied Sciences     Open Access   (Followers: 15)
All Life     Open Access   (Followers: 7)
AMB Express     Open Access   (Followers: 1)
Ambix     Hybrid Journal   (Followers: 3)
American Journal of Agricultural and Biological Sciences     Open Access   (Followers: 7)
American Journal of Bioethics     Hybrid Journal   (Followers: 17)
American Journal of Human Biology     Hybrid Journal   (Followers: 18)
American Journal of Medical and Biological Research     Open Access   (Followers: 5)
American Journal of Plant Sciences     Open Access   (Followers: 24)
American Journal of Primatology     Hybrid Journal   (Followers: 17)
American Naturalist     Full-text available via subscription   (Followers: 80)
Amphibia-Reptilia     Hybrid Journal   (Followers: 5)
Anaerobe     Hybrid Journal   (Followers: 3)
Analytical Methods     Hybrid Journal   (Followers: 7)
Analytical Science Advances     Open Access   (Followers: 1)
Anatomia     Open Access   (Followers: 14)
Anatomical Science International     Hybrid Journal   (Followers: 3)
Animal Cells and Systems     Hybrid Journal   (Followers: 4)
Animal Microbiome     Open Access   (Followers: 6)
Animal Models and Experimental Medicine     Open Access  
Annales françaises d'Oto-rhino-laryngologie et de Pathologie Cervico-faciale     Full-text available via subscription   (Followers: 2)
Annales Henri Poincaré     Hybrid Journal   (Followers: 2)
Annales Universitatis Mariae Curie-Sklodowska, sectio C – Biologia     Open Access   (Followers: 1)
Annals of Applied Biology     Hybrid Journal   (Followers: 7)
Annals of Biomedical Engineering     Hybrid Journal   (Followers: 18)
Annals of Human Biology     Hybrid Journal   (Followers: 6)
Annals of Science and Technology     Open Access   (Followers: 2)
Annual Research & Review in Biology     Open Access   (Followers: 1)
Annual Review of Biomedical Engineering     Full-text available via subscription   (Followers: 18)
Annual Review of Biophysics     Full-text available via subscription   (Followers: 23)
Annual Review of Cancer Biology     Full-text available via subscription   (Followers: 3)
Annual Review of Cell and Developmental Biology     Full-text available via subscription   (Followers: 40)
Annual Review of Food Science and Technology     Full-text available via subscription   (Followers: 13)
Annual Review of Genomics and Human Genetics     Full-text available via subscription   (Followers: 31)
Annual Review of Phytopathology     Full-text available via subscription   (Followers: 10)
Anthropological Review     Open Access   (Followers: 28)
Antibiotics     Open Access   (Followers: 12)
Antioxidants     Open Access   (Followers: 4)
Antioxidants & Redox Signaling     Hybrid Journal   (Followers: 7)
Antonie van Leeuwenhoek     Hybrid Journal   (Followers: 3)
Anzeiger für Schädlingskunde     Hybrid Journal   (Followers: 1)
Apidologie     Hybrid Journal   (Followers: 4)
Apmis     Hybrid Journal   (Followers: 1)
APOPTOSIS     Hybrid Journal   (Followers: 5)
Applied Biology     Open Access  
Applied Bionics and Biomechanics     Open Access   (Followers: 4)
Applied Phycology     Open Access   (Followers: 1)
Applied Vegetation Science     Full-text available via subscription   (Followers: 9)
Aquaculture Environment Interactions     Open Access   (Followers: 7)
Aquaculture International     Hybrid Journal   (Followers: 25)
Aquaculture Reports     Open Access   (Followers: 3)
Aquaculture, Aquarium, Conservation & Legislation - International Journal of the Bioflux Society     Open Access   (Followers: 9)
Aquatic Biology     Open Access   (Followers: 9)
Aquatic Ecology     Hybrid Journal   (Followers: 42)
Aquatic Ecosystem Health & Management     Hybrid Journal   (Followers: 16)
Aquatic Science and Technology     Open Access   (Followers: 4)
Aquatic Toxicology     Hybrid Journal   (Followers: 26)
Arabian Journal of Scientific Research / المجلة العربية للبحث العلمي     Open Access  
Archaea     Open Access   (Followers: 3)
Archiv für Molluskenkunde: International Journal of Malacology     Full-text available via subscription   (Followers: 1)
Archives of Biological Sciences     Open Access  
Archives of Microbiology     Hybrid Journal   (Followers: 9)
Archives of Natural History     Hybrid Journal   (Followers: 8)
Archives of Oral Biology     Hybrid Journal   (Followers: 2)
Archives of Virology     Hybrid Journal   (Followers: 6)
Archivum Immunologiae et Therapiae Experimentalis     Hybrid Journal   (Followers: 2)
Arctic     Open Access   (Followers: 9)
Arid Ecosystems     Hybrid Journal   (Followers: 2)
Arquivos do Instituto Biológico     Open Access   (Followers: 1)
Arquivos do Museu Dinâmico Interdisciplinar     Open Access  
Arthropod Structure & Development     Hybrid Journal   (Followers: 1)
Arthropod Systematics & Phylogeny     Open Access   (Followers: 5)
Artificial DNA: PNA & XNA     Hybrid Journal   (Followers: 2)
Artificial Intelligence in the Life Sciences     Open Access   (Followers: 1)
Asian Bioethics Review     Full-text available via subscription   (Followers: 2)
Asian Journal of Biological Sciences     Open Access   (Followers: 2)
Asian Journal of Biology     Open Access  
Asian Journal of Biotechnology and Bioresource Technology     Open Access  
Asian Journal of Cell Biology     Open Access   (Followers: 4)
Asian Journal of Developmental Biology     Open Access   (Followers: 1)
Asian Journal of Medical and Biological Research     Open Access   (Followers: 3)
Asian Journal of Nematology     Open Access   (Followers: 4)
Asian Journal of Poultry Science     Open Access   (Followers: 3)
Atti della Accademia Peloritana dei Pericolanti - Classe di Scienze Medico-Biologiche     Open Access  
Australian Life Scientist     Full-text available via subscription   (Followers: 2)
Australian Mammalogy     Hybrid Journal   (Followers: 8)
Autophagy     Hybrid Journal   (Followers: 8)
Avian Biology Research     Hybrid Journal   (Followers: 4)
Avian Conservation and Ecology     Open Access   (Followers: 18)
Bacterial Empire     Open Access   (Followers: 1)
Bacteriology Journal     Open Access   (Followers: 2)
Bacteriophage     Full-text available via subscription   (Followers: 2)
Bangladesh Journal of Bioethics     Open Access  
Bangladesh Journal of Plant Taxonomy     Open Access  
Bangladesh Journal of Scientific Research     Open Access  
Berita Biologi     Open Access  
Between the Species     Open Access   (Followers: 2)
BIO Web of Conferences     Open Access  
Bio-Grafía. Escritos sobre la Biología y su enseñanza     Open Access  
Bio-Lectura     Open Access  
BIO-SITE : Biologi dan Sains Terapan     Open Access  
Bioactive Compounds in Health and Disease     Open Access   (Followers: 1)
Biocatalysis and Biotransformation     Hybrid Journal   (Followers: 4)
BioCentury Innovations     Full-text available via subscription   (Followers: 2)
Biochemistry and Cell Biology     Hybrid Journal   (Followers: 18)
Biochimie     Hybrid Journal   (Followers: 2)
BioControl     Hybrid Journal   (Followers: 2)
Biocontrol Science and Technology     Hybrid Journal   (Followers: 5)
Biodemography and Social Biology     Hybrid Journal   (Followers: 1)
BIODIK : Jurnal Ilmiah Pendidikan Biologi     Open Access  
BioDiscovery     Open Access   (Followers: 2)
Biodiversitas : Journal of Biological Diversity     Open Access   (Followers: 2)
Biodiversity : Research and Conservation     Open Access   (Followers: 30)
Biodiversity Data Journal     Open Access   (Followers: 7)
Biodiversity Informatics     Open Access   (Followers: 3)
Biodiversity Information Science and Standards     Open Access   (Followers: 2)
Biodiversity Observations     Open Access   (Followers: 2)
Bioeduca : Journal of Biology Education     Open Access   (Followers: 2)
Bioeduscience     Open Access   (Followers: 3)
Bioeksperimen : Jurnal Penelitian Biologi     Open Access  
Bioelectrochemistry     Hybrid Journal   (Followers: 1)
Bioelectromagnetics     Hybrid Journal   (Followers: 1)
Bioenergy Research     Hybrid Journal   (Followers: 3)
Bioengineering and Bioscience     Open Access   (Followers: 1)
BioEssays     Hybrid Journal   (Followers: 10)
Bioethica     Open Access   (Followers: 1)
Bioethics     Hybrid Journal   (Followers: 20)
BioéthiqueOnline     Open Access   (Followers: 1)
Biogeographia : The Journal of Integrative Biogeography     Open Access   (Followers: 2)
Biogeosciences (BG)     Open Access   (Followers: 18)
Biogeosciences Discussions (BGD)     Open Access   (Followers: 3)
Bioinformatics     Hybrid Journal   (Followers: 289)
Bioinformatics Advances : Journal of the International Society for Computational Biology     Open Access   (Followers: 4)
Bioinformatics and Biology Insights     Open Access   (Followers: 14)
Biointerphases     Open Access   (Followers: 1)
Biojournal of Science and Technology     Open Access  
BioLink : Jurnal Biologi Lingkungan, Industri, Kesehatan     Open Access  
Biologia     Hybrid Journal   (Followers: 1)
Biologia Futura     Hybrid Journal  
Biologia on-line : Revista de divulgació de la Facultat de Biologia     Open Access  
Biological Bulletin     Partially Free   (Followers: 6)
Biological Control     Hybrid Journal   (Followers: 6)

        1 2 3 4 5 6 7 8 | Last

Similar Journals
Journal Cover
Berita Biologi
Number of Followers: 0  

  This is an Open Access Journal Open Access journal
ISSN (Print) 0126-1754 - ISSN (Online) 2337-8751
Published by Indonesian Institute of Sciences Homepage  [5 journals]
  • DIVERSITY OF NEPENTHES SPECIES IN NORTH SUMATRA PROVINCE

    • Authors: Mansur Halik, Andi Salamah, Edi Mirmanto
      Pages: 199 - 209
      Abstract: Sumatra is the second island after Borneo, which has the highest diversity of Nepenthes species, spread from the lowlands to mountain forests. There are 38 species of Nepenthes recorded on Sumatra Island, and 33 of them are endemic. The study was conducted in 2019 and 2022 to know the diversity of Nepenthes in North Sumatra Province. The results showed that 22 species of Nepenthes were recorded in North Sumatra Province, consisting of 12 highland species, 3 midland species and 7 lowland species. N. tobaica is a highland species with a very wide distribution, spread over eight regencies in North Sumatra with a very abundant population, while N. sumatrana, N. rigidifolia, N. jamban, N. lingulata, and N. naga have limited distribution with a very small population and are potentially extinct.
      PubDate: 2022-12-26
      DOI: 10.14203/beritabiologi.v21i3.4389
      Issue No: Vol. 21, No. 3 (2022)
       
  • AKTIVITAS DAN KARAKTERISASI MIKOSIN ANTI Zygosaccharomyces rouxii FNCC
           3006 DARI ISOLAT KHAMIR OSMOFILIK ASAL NEKTAR BUNGA DAN MADU

    • Authors: Sovia Nur Janah, Miftahul Ilmi
      Pages: 211 - 220
      Abstract: Makanan berkadar gula tinggi (40-70%) dapat terkontaminasi oleh Zygosaccharomyces rouxii yang toleran terhadap tekanan osmotik, asam, alkohol, serta tahan terhadap bahan preservatif makanan. Salah satu cara menghambat pertumbuhan Z. rouxii adalah dengan memberikan mikosin anti Z. rouxii. Tujuan dari penelitian ini adalah untuk mengetahui aktivitas dan karakterisasi mikosin anti Z. rouxii dari isolat khamir osmofilik. Penapisan aktivitas antagonistik dari isolat khamir osmofilik dilakukan dengan metode Colony Picking dan penapisan aktivitas ekstrak kasar dilakukan dengan Disk Diffusion Assay. Zona jernih yang terbentuk diukur untuk menentukan aktivitasnya dengan menggunakan indeks penghambatan (IP). Setelah itu dilakukan pengukuran berat kering sel dan karakterisasi mikosin menggunakan SDS PAGE. Hasil penelitian menunjukkan terdapat 10 isolat khamir osmofilik yang menghasilkan aktivitas antagonistik terhadap Z. rouxii yaitu isolat AP 1, PS 1.1, LW 1.1, BK 3.2, MR 3.2, AP 3, KS 1, dan TL 2.2 yang diisolasi dari madu, isolat BL 8.21 dan BL 8.22 yang diisolasi dari nektar bunga. Aktivitas ekstrak kasar mikosin anti Z. rouxii paling tinggi yaitu isolat LW 1.1 dengan nilai IP 1,28.  Isolat paling efektif untuk menghambat pertumbuhan dari Z. rouxii adalah isolat LW 1.1, diperoleh nilai perbandingan zona hambat dengan berat kering yaitu 442,099. Isolat LW 1.1 menghasilkan anti-Z. rouxii dengan berat molekul antara 12,88 kDa sampai 72,92 kDa. Disimpulkan bahwa isolat LW 1.1 dapat dijadikan sumber penghasil mikosin anti-Z. rouxii yang dapat dimanfaatkan sebagai agen biokontrol dalam produk makanan.
      PubDate: 2022-12-26
      DOI: 10.14203/beritabiologi.v21i3.4095
      Issue No: Vol. 21, No. 3 (2022)
       
  • Keragaman Bakteri Pendegradasi Polietilena di Hutan Mangrove Ambon

    • Authors: Rizki Estiningtyas
      Pages: 221 - 230
      Abstract: Peningkatan sampah plastik di lingkungan merupakan ancaman bagi permukaan bumi apabila tidak dikelola dengan baik. Jenis plastik yang banyak digunakan oleh masyarakat yaitu polietilena. Pengelolaan polietilena dapat dilakukan dengan biodegradasi. Penelitian ini bertujuan mengetahui keragaman bakteri pendegradasi polietilena dari hutan mangrove Ambon. Isolasi bakteri pendegradasi polietilena dilakukan menggunakan media pengayaan dengan penambahan bubuk plastik linear low-density polyethylene (LLDPE) sebagai sumber karbon. Hasil penelitian ini didapatkan sebanyak 26 isolat bakteri pendegradasi polietilena berhasil diisolasi dari tanah mangrove. Berdasarkan analisis 16s rRNA, semua isolat termasuk dalam filum Proteobacteria dengan subfilum gamma proteobacteria dan berasal dari 5 genus, yaitu Microbulbifer, Zobellella, Pseudoalteromonas, Vibrio, dan Pseudomonas. Terdapat 13 spesies teridentifikasi dari ke-26 isolat tersebut, yaitu Microbulbifer pacificus, Microbulbifer okinawensis, Microbulbifer arenaceous, Microbulbifer elongatus, Microbulbifer hydrolyticus, Microbulbifer salipaludis, Zobellella aerophila, Pseudoalteromonas profundi, Vibrio tritonius, Vibrio alginolyticus, Pseudomonas alcaligenes, Pseudomonas marincola, dan Pseudomonas benzenivorans.
      PubDate: 2022-12-26
      DOI: 10.14203/beritabiologi.v21i3.4331
      Issue No: Vol. 21, No. 3 (2022)
       
  • Growth Evaluation of Red Tilapia (Oreochromis spp) Under Different Cycles
           of Fasting And Re-Feeding

    • Authors: Adam Robisalmi
      Pages: 231 - 244
      Abstract: Feed restriction through fasting is a widely recommended feed management strategy in aquaculture, where this strategy is believed to have a positive effect on fish growth performance. This study aims to evaluate the growth performance of red tilapia in various cycles of fasting and re-feeding. The activity was carried out at Research Institute Fish Breeding from August to November 2020  . The research method used was experimental with 5 treatments with 4 replications, namely control (fish were fed daily), then the fasting treatment was S7 (7 days of fasting), S14 (14 days of fasting), S21 (21 days of fasting) and S28 (28 fasting day) followed by refeeding until the end of maintenance. Maintenance was carried out for 90 days in a concrete tub measuring 2x1m3 with a stocking density of 28 fishes / unit. During the rearing period the fish were fed satiation three times a day. The results showed that there was a decrease in growth along with the increase of the fasting period, but there was a trend of increasing growth after re-feeding with over compensatory growth in treatment S7 and partial compensatory growth in treatments S14 and S21. Likewise, the value of the condition factor and the hepatosomatic index during the fasting period decreased, but after feeding, the values were not different from those of fish fed continuously.
      PubDate: 2022-12-26
      DOI: 10.14203/beritabiologi.v21i3.4040
      Issue No: Vol. 21, No. 3 (2022)
       
  • Evaluation of Caulerpa lentillifera as artificial feed on growth rate and
           survival level of carp (Cyprinus carpio)]

    • Authors: Erni Padu Lemba, Firat Meiyasa, Nurbety Tarigan
      Pages: 245 - 256
      Abstract: This study aimed to evaluate the dose and utilization of Caulerpa lentilifera seaweed as artificial feed on the growth rate and survival rate of carp. This study used a completely randomized design (CRD) with four treatment levels and three replications. The fish used was carp (Cyprinus carpio) measuring 3-5 cm with a stocking density of 10 acres/bucket for 42 days of rearing. The doses of Caulerpa lentilifera flour added to the feed were 0%, 10%, 20%, and 30%. The results showed that the addition of Caulerpa lentilifera flour had a significant effect on growth rate, survival rate, feed utilization efficiency, and carp protein efficiency ratio. Giving Caulerpa lentilifera flour with a dose of 20% in the feed was the best dose for the relative growth rate of 6.83%, survival rate of 75%, efficiency of feed utilization of 20.59% and protein efficiency ratio of 3.79%. Caulerpa lentilifera in feed is able to increase the efficiency of feed utilization so as to support the growth rate and survival rate of carp
      PubDate: 2022-12-26
      DOI: 10.14203/beritabiologi.v21i3.4319
      Issue No: Vol. 21, No. 3 (2022)
       
  • DAYA HASIL DAN KANDUNGAN ANTOSIANIN GENOTIP UBI JALAR UNGU (PURPLE-FLESHED
           SWEET POTATO) DI JATINANGOR, JAWA BARAT

    • Authors: Amalia Murnihati Noerrizki, Harlino Nandha Prayudha, Debby Ustari, Tarkus Suganda, Vergel Concibido, Agung Karuniawan
      Pages: 269 - 277
      Abstract: Daya hasil adalah kemampuan tanaman untuk memproduksi hasil sesuai dengan potensinya. Ubi jalar ungu mengandung senyawa antosianin yang merupakan senyawa yang dapat dimanfaatkan untuk berbagai produk karena memberikan efek yang baik untuk kesehatan. Tujuan penelitian ini adalah untuk mengestimasi daya hasil dan kandungan antosianin pada 12 genotip ubi jalar ungu. Penelitian lapangan dilakukan menggunakan Rancangan Acak Kelompok (RAK) dengan 3 kali ulangan. Pengamatan dilakukan terhadap karakter bentuk ubi, warna daging ubi, warna kulit, panjang ubi, diameter ubi, jumlah ubi dan bobot ubi per plot berdasarkan Descriptors for Sweet Potato (Huaman, 1999). Kandungan antosianin dievaluasi dengan metode pH Differential sedangkan variabel warna ekstrak dianalisis berdasarkan nilai L*, a*, b*. Hasil  menunjukkan terdapat keragaman pada bentuk ubi, panjang ubi, diameter ubi, jumlah ubi dan bobot ubi per plot. Bentuk ubi bervariasi yaitu oval memanjang, elips membulat, elips, obovate, berlengkung. 11 genotip ubi jalar ungu memiliki warna daging berpigmen dengan antosianin dan warna kulit yaitu ungu. Hasil analisis LSI menunjukkan PF 4, PF 5, PF 6, PF 7, PF 8, PF 9 dan PF 12 memiliki penampilan lebih baik dari varietas pembanding. Kandungan antosianin tertinggi yaitu PF 12 (84,02 mg/100g). Analisis korelasi menunjukkan antosianin memiliki korelasi positif dengan karakter hasil dan nilai a*.
      PubDate: 2022-12-26
      DOI: 10.14203/beritabiologi.v21i3.3931
      Issue No: Vol. 21, No. 3 (2022)
       
  • ANTAGONISTIC ACTIVITY OF MARINE BACTERIA FROM KARIMUN ISLAND, INDONESIA

    • Authors: Ruby Setiawan, Ade Lia Putri, Mia Kusmiati
      Pages: 279 - 290
      Abstract: Antimicrobial resistance (AMR) is becoming a major global crisis in the public healthcare system. One of the issues is the misuse of antimicrobials that will accelerate the AMR phenomenon. Discovering new antimicrobial compounds from various sources and places is an alternative way to resolve this problem. Marine bacteria were known as a new promising source for bioactive compounds. The marine bacteria were isolated from marine sediment using 1/5 NBRC 802 agar and seawater agar supplemented with 10mM NH4Cl. All isolates were subjected to antagonistic activity against Escherichia coli, Bacillus subtilis, and Staphylococcus aureus using the disk diffusion method. The selected isolates were then identified based on the 16S rRNA gene sequence. A total of 65 bacterial isolates have been successfully isolated from the seawater and marine sediment from Karimun Island. Of the 65 isolates, 12 isolates showed activity against tested bacteria; seven isolates against B. subtilis, two isolates against S. aureus, one isolate against E. coli, one isolate against B. subtilis and S. aureus, and one isolate against S. aureus and E. coli. The 16S rDNA sequences showed that the selected isolates belong to Cellulosimicrobium funkei, Gordonia sp., Kocuria salina, Micrococcus aloeverae, Micromonospora aurantiaca, Mumia sp., Nocardioides sp., and Pseudoalteromonas shioyasakiensis. Most of the isolates with antibacterial activity were identified as Actinobacteria and one isolate from the Gammaproteobacteria. Isolate KRSd2(2) shared 97,79% identity with Gordonia bronchialis. Further, a taxonomical study of the isolate compared with known species and chemical analysis of bioactive compounds are needed.
      PubDate: 2022-12-26
      DOI: 10.14203/beritabiologi.v21i3.4393
      Issue No: Vol. 21, No. 3 (2022)
       
  • TREN PERDAGANGAN MONYET EKOR PANJANG (Macaca fascicularis) PERIODE 2000
           – 2019

    • Authors: Rahmania Wanda Zafira, Tika Dewi Atikah, Erri Noviar Megantara, Nurul Inayah, Amir Hamidy
      Pages: 291 - 300
      Abstract: Perdagangan satwa liar merupakan aktivitas manusia yang mempercepat kepunahan keanekaragaman hayati. Monyet ekor panjang (Macaca fascicularis) termasuk salah satu jenis mamalia yang paling banyak diperdagangkan. Tujuan dari penelitian ini adalah untuk mengetahui tren perdagangan dan kemitraan perdagangan M. fascicularis secara global periode 2000–2019. Metode yang digunakan dalam penelitian ini adalah metode kualitatif dengan pengumpulan data secara studi kepustakaan. Analisis data dilakukan secara deskriptif terhadap permasalahan yang diselidiki. Hasil menunjukkan bahwa selama  periode 2000–2019 tercatat 3.111 insiden perdagangan. Tren perdagangan M. fascicularis berkode sumber tangkapan dari alam (W) secara umum mengalami penurunan, sedangkan perdagangan berkode sumber penangkaran (C), anakan (F), dan ranching (R) secara umum bervariasi. Mauritius menjadi negara eksportir M. fascicularis berkode tangkapan dari alam (W) dan anakan (F) tertinggi, sedangkan negara pengekspor tertinggi hasil penangkaran (C) adalah Cina dan Vietnam. Amerika Serikat merupakan negara paling konsumtif sebagai importir maupun re-eksportir dan memiliki banyak mitra perdagangan dalam pasar M. fascicularis ini. Indonesia aktif melakukan perdagangan terutama dengan kode sumber penangkaran (C) dan bermitra dengan Amerika Serikat, Taiwan, dan Singapura.
      PubDate: 2022-12-26
      DOI: 10.14203/beritabiologi.v21i3.4164
      Issue No: Vol. 21, No. 3 (2022)
       
  • Response of Local Cowpea Varieties Southwest Maluku to Drought Stress on
           Germination Phase

    • Authors: Ritha Lusian Karuwal, Hermalina Sinay
      Pages: 301 - 311
      Abstract: Drought stress is one of the agricultural problem, especially in dry land. Respone to drought stress of local cowpea varieties Southwest Maluku on germination phase had not been conducted. The aim of this study was to evaluate response of local cowpea varities to drought stress on germination phase. The research was using seven of local varieties (KM1, KM3, KM4, KM6, KM7, KM8, KM9) from Kisar island and three cultivars from ILETRI Malang. Treatment of drought stress were consist of watering period every twice days (P0) and five day (P1) was replicated three times. Sprout number, final germination percent, sprout length, sprout weight, vigor index and prolin content in root were observed. Data were analyzed using ANOVA, followed by DMRT at 5%. The results showed that treatment of every five day inhibit germination at all varieties. KM1, KM4, KM6 varieties has the highest value on all parameter. There are positive correlation which significant between of the observation parameter. Principal component analysis to clustering in two main cluster. Early selection of drought tolerance at germination phase very need to breeding plant in effort of the suistainble development and utilization.
      PubDate: 2022-12-26
      DOI: 10.14203/beritabiologi.v21i3.4222
      Issue No: Vol. 21, No. 3 (2022)
       
  • PENGARUH Mangan (Mn) TERHADAP OKSIDASI KROMIUM TRIVALEN DAN PERTUMBUHAN
           Tagetes sp.

    • Authors: Margareta Prameswati, Sri Kasmiyati, Sucahyo Sucahyo
      Pages: 313 - 325
      Abstract: Chromium can be found in 2 oxidation states, trivalent chromium (Cr3+) and hexavalent chromium (Cr6+) in environment. Trivalent chromium can be oxidized by manganese oxide to hexavalent chromium (Cr6+). The aim of the study was to determine the effect of Mn on the oxidation of Cr³⁺and plant growth of Tagetes. The study was conducted experimentally using a completely randomized design. The Tagetes plants grown in media with 2 treatment factors, namely Cr3+ (CrCl3) with 3 concentrations of 0, 100 and 500 mg/l) and Mn (MnSO4) with 4 concentrations of 0, 1, 5 and 10 mg/l. The plant growth and Cr6+ content in roots and shoots were measured to determine the effect and to detect the occurrence of Cr3+ oxidation. The addition of Mn in the media of Tagetes containing Cr3+ increased the Cr3+ oxidation process, indicated by the detection of Cr6+ in the roots and shoots of Tagetes. The highest Cr6+ content was found in the roots and shoots of Tagetes sp. treated with Cr3+ 500 mg/l and Mn 10 mg/l at 0.059 and 0.035 g/l, respectively. The interaction of Cr3+ and Mn treatments significantly affected the growth of Tagetes plants. Cr3+ and Mn at high concentrations increased plant height, root length, root and shoot dry weight. The interaction of Cr3+ and Mn at high concentrations inhibited the increase in the number of leaves of Tagetes.
      PubDate: 2022-12-26
      DOI: 10.14203/beritabiologi.v21i3.4190
      Issue No: Vol. 21, No. 3 (2022)
       
  • KARAKTERISTIK MORFOLOGI IKAN PATIN HIBRIDA HASIL HIBRIDISASI ANTARA IKAN
           PATIN SIAM (Pangasianodon hypophthalmus ) BETINA DENGAN IKAN PATIN NASUTUS
           (Pangasius nasutus) JANTAN DIBANDINGKAN INDUKNYA

    • Authors: Bambang Iswanto, Evi Tahapari
      Pages: 327 - 338
      Abstract: ABSTRACTHybridization between female striped catfish (Pangasianodon hypophthalmus) and male nasutus catfish (Pangasius nasutus) has been conducted in Indonesia and Malaysia. However, only limited characteristics of the hybrid already reported. The present study aimed to elucidate the morphological differences between the hybrid and both parental species. Each 35 fish specimens of seven months old were examined through the measurement of 35 morphometric caharacters and the count of five meristic characters, as conducted by previous workers. Additionally, the morphology of gill rakers, mouth, snout, eye, maxillary and palatal dentitions, swim bladder, adipose fin and the body colouration were observed. The results revealed that the hybrid was morphometrically similar to the striped catfish and slightly differed from the nasutus catfish. For meristic characters, the hybrid could be practically differentiated from both parental species based on the number of pelvic fin rays. Morphologically, the hybrid differed from the striped catfish in terms of gill rakers, swim bladder, mouth, snout, maxillary and palatal dentitions, adipose fin and the body colouration. While, the hybrid was morphologically different from the nasutus catfish in terms of mouth, snout, eye position, maxillary and palatal dentitions, swim bladder and the body colouration. Key words: morphology, morphometric, meristic, hybrid, striped catfish (Pangasianodon hypophthalmus), nasutus catfish (Pangasius nasutus) ABSTRAKHibridisasi antara ikan patin Siam (Pangasianodon hypophthalmus) betina dengan patin nasutus (Pangasius nasutus) jantan telah dilakukan di Indonesia dan Malaysia. Namun demikian, karakteristik yang sudah dilaporkan masih terbatas. Penelitian ini bertujuan menguraikan perbedaan morfologi antara ikan patin hibrida tersebut dibandingkan kedua spesies induknya. Masing-masing 35 ekor spesimen berumur tujuh bulan diteliti melalui pengukuran 35 karakter morfometrik dan penghitungan lima karakter meristik, sebagaimana telah dilakukan oleh peneliti-peneliti terdahulu. Selain itu, morfologi tapis insang, mulut, moncong, mata, deretan gigi rahang atas dan gigi langit-langit mulut, gelembung renang, sirip lemak dan warna tubuh juga diamati. Hasil penelitian ini menunjukkan bahwa karakteristik morfometrik ikan patin hibrida serupa dengan ikan patin Siam, dan agak berbeda dari ikan patin nasutus. Secara meristik, ikan patin hibrida dapat dibedakan dengan mudah dari kedua spesies induknya berdasarkan jumlah jari-jari lemah sirip perut. Ikan patin hibrida berbeda dari ikan patin Siam dalam hal karakteristik morfologi tapis insang, mulut, moncong, deretan gigi rahang atas dan gigi langit-langit mulut, gelembung renang, sirip lemak dan warna tubuh. Selanjutnya, ikan patin hibrida berbeda dari ikan patin nasutus dalam hal karakteristik morfologi mulut, moncong, posisi mata, deretan gigi rahang atas dan gigi langit-langit mulut, gelembung renang dan warna tubuh. Kata kunci: morfologi, morfometrik, meristik, hibrida, patin Siam (Pangasianodon hypophthalmus), patin nasutus (Pangasius nasutus)
      PubDate: 2022-12-26
      DOI: 10.14203/beritabiologi.v21i3.4407
      Issue No: Vol. 21, No. 3 (2022)
       
  • KEANEKARAGAMAN DAN KETIDAKNORMALAN MORFOLOGI PADA KOMUNITAS KOPEPODA
           (KRUSTASEA) DI PERAIRAN MUARA ANGKE DAN TANJUNG PASIR, TELUK JAKARTA

    • Authors: Mulyadi Mulyadi, Rena Tri Hernawati
      Pages: 339 - 350
      Abstract: An observation on Copepoda diversity, abundance, and distribution in two mangrove areas in Jakarta Bay was carried out in May-June and September-October 2011. The objective of this observation was to investigate the relationship between diversity and abundance of copepods with some environmental factors which affected the distribution on dry and rainy seasons. A total 47 species from 26 genera, 20 families and 6 orders of copepods were recorded, including 3 new species, Calanopia asymmetrica Mulyadi & Ueda, 1996; Labidocera javaensis Mulyadi, 1997, and Pontella vervoorti Mulyadi, 2003, and 10 new records. The highest species richness occurred in the rainy season in Tanjung Pasir with 35 species, but the diversity index was very visible in Muara Angke, where during the rainy season the dominance index was high (0.2074), while the dry season had a high diversity index (Simpson 0.9481 and Shannon 3,279). Morphological abnormalities were found in the anal segment of the abdomen.
      PubDate: 2022-12-26
      DOI: 10.14203/beritabiologi.v21i3.4367
      Issue No: Vol. 21, No. 3 (2022)
       
  • STUDI POPULASI AKAR LAKA (Dalbergia parviflora Roxb.) DI KOTA TIDORE
           KEPULAUAN PROVINSI MALUKU UTARA

    • Authors: Bayu Arief Pratama, Taufik Mahendra, Leberina Kristina Ibo
      Pages: 351 - 363
      Abstract: Akar laka (Dalbergia parviflora Roxb.) merupakan jenis liana dengan batang berduri. Sejak CITES Conference of Parties (CoP) 17, marga Dalbergia terdaftar dalam apendiks II. Sehingga perdagangannya turut diawasi oleh internasional. Petak ukur 30×50 m dibuat untuk mengamati populasi dan kondisi habitat akar laka. Semua jenis berkayu dengan DBH ≥ 4,8 cm diukur. Khusus akar laka, semua individu diukur diameter dan panjangnya. Parameter lingkungan dan contoh tanah juga diambil. Tercatat 297 individu yang terbagi dalam 24 jenis dan 10 suku ditemukan didalam petak ukur. Sebanyak 109 individu diantaranya adalah akar laka. Jumlah individu didominasi oleh jenis juvenil yang menjadi ciri hutan dengan regenerasi yg baik dan sedang dalam proses suksesi. Keanekaragaman jenisnya tergolong sedang (H’=1,97) dan kelimpahan jenisnya cukup merata (J=0,61). Hasil analisis komponen utama menunjukkan Dalbergia parviflora, Diospyros ulo, dan Dimorchalyx sp. adalah tiga jenis penting dalam petak ukur.
      PubDate: 2022-12-26
      DOI: 10.14203/beritabiologi.v21i3.4197
      Issue No: Vol. 21, No. 3 (2022)
       
 
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