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INDONESIA
BERITA BIOLOGI
Published by Lembaga Ilmu Pengetahuan Indonesia
ISSN : -     EISSN : -     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Arjuna Subject : -
Articles 2,125 Documents
 209   210   211   212   213 
KONDISI TERUMBU KARANG DI PERAIRAN SEKITAR AREA BEROPERASINYA PERUSAHAAN TAMBANG BATU BARA (STUDI KASUS: PKP2B PT. KALTIM PRIMA COAL, KUTAI TIMUR) [Coral Reef Condition in Waters Surrounding Operational Site of Coal Mining Company (Case Study: PKP2B PT. Omega Raya Simarangkir; Firmansyah Tawang; Irwan .; Ayub .; Sila Kartika Sari; Derta Prabuning
BERITA BIOLOGI Vol 21, No 2 (2022): Berita Biologi
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v21i2.3938

Abstract

The condition of coral reefs is influenced by natural and anthropogenic factors. Anthropogenic activities such as coal mining will eventually have an impact on the surrounding ecosystems including coral reefs. This study aims to determine the condition of coral reefs in the waters around the operating areas of coal mining companies. This study is a preliminary study as a database that provides data on the health of coral reefs in the vicinity of the operation of mining companies in East Kutai Regency. Data was collected at Bengalon Reef, Kellie’s Reef and South Marker in March 2019 using Reef Check method, focusing on three indicators namely substrate, fish, and invertebrate. The line transect used in this method is 100 m long and divided into 4 segments. Physical and chemical parameters of the waters measured are current speed, brightness, pH, salinity, and water temperature. The condition of coral reefs in the study location is in medium category. The quality of the waters is in tolerance range of life support and coral growth. Indicator fish found were Chaetodontidae, Lutjanidae, Scaridae and Serranidae. Indicator invertebrates found were Holothuria edulis, Panulirus sp. and Tridacna spp. The dominant coral reef damage was found in boat anchors and fishing nets rubbish.  
DAYA HASIL DAN KANDUNGAN ANTOSIANIN GENOTIP UBI JALAR UNGU (PURPLE-FLESHED SWEET POTATO) DI JATINANGOR, JAWA BARAT Amalia Murnihati Noerrizki; Harlino Nandha Prayudha; Debby Ustari; Tarkus Suganda; Vergel Concibido; Agung Karuniawan
BERITA BIOLOGI Vol 21, No 3 (2022): Berita Biologi
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v21i3.3931

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*.
KARAKTERISTIK MORFOLOGI IKAN PATIN HIBRIDA HASIL HIBRIDISASI ANTARA IKAN PATIN SIAM (Pangasianodon hypophthalmus ) BETINA DENGAN IKAN PATIN NASUTUS (Pangasius nasutus) JANTAN DIBANDINGKAN INDUKNYA Bambang Iswanto; Evi Tahapari
BERITA BIOLOGI Vol 21, No 3 (2022): Berita Biologi
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v21i3.4407

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)
Keragaman Bakteri Pendegradasi Polietilena di Hutan Mangrove Ambon Rizki Estiningtyas
BERITA BIOLOGI Vol 21, No 3 (2022): Berita Biologi
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v21i3.4331

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.
ANTAGONISTIC ACTIVITY OF MARINE BACTERIA FROM KARIMUN ISLAND, INDONESIA Ruby Setiawan; Ade Lia Putri; Mia Kusmiati
BERITA BIOLOGI Vol 21, No 3 (2022): Berita Biologi
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v21i3.4393

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.
KEANEKARAGAMAN DAN KETIDAKNORMALAN MORFOLOGI PADA KOMUNITAS KOPEPODA (KRUSTASEA) DI PERAIRAN MUARA ANGKE DAN TANJUNG PASIR, TELUK JAKARTA Mulyadi Mulyadi; Rena Tri Hernawati
BERITA BIOLOGI Vol 21, No 3 (2022): Berita Biologi
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v21i3.4367

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.
Growth Evaluation of Red Tilapia (Oreochromis spp) Under Different Cycles of Fasting And Re-Feeding Adam Robisalmi
BERITA BIOLOGI Vol 21, No 3 (2022): Berita Biologi
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v21i3.4040

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.
TREN PERDAGANGAN MONYET EKOR PANJANG (Macaca fascicularis) PERIODE 2000 – 2019 Rahmania Wanda Zafira; Tika Dewi Atikah; Erri Noviar Megantara; Nurul Inayah; Amir Hamidy
BERITA BIOLOGI Vol 21, No 3 (2022): Berita Biologi
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v21i3.4164

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.
STUDI POPULASI AKAR LAKA (Dalbergia parviflora Roxb.) DI KOTA TIDORE KEPULAUAN PROVINSI MALUKU UTARA Bayu Arief Pratama; Taufik Mahendra; Leberina Kristina Ibo
BERITA BIOLOGI Vol 21, No 3 (2022): Berita Biologi
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v21i3.4197

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.
Evaluation of Caulerpa lentillifera as artificial feed on growth rate and survival level of carp (Cyprinus carpio)] Erni Padu Lemba; Firat Meiyasa; Nurbety Tarigan
BERITA BIOLOGI Vol 21, No 3 (2022): Berita Biologi
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v21i3.4319

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

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