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Jurnal Biologi Tropis
Published by Universitas Mataram
ISSN : 14119587     EISSN : 25497863     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology
Jurnal Biologi Tropis (ISSN Cetak 1411-9587 dan ISSN Online 2549-7863) diterbitkan mulai tahun 2000 dengan frekuensi 2 kali setahun oleh Program Studi Pendidikan Biologi PMIPA FKIP Universitas Mataram, berisi hasil penelitian dan ulasan Ilmiah dalam bidang Biologi Sains.
Arjuna Subject : -
Articles 2,562 Documents
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KEANEKARAGAMAN DAN KELIMPAHAN BIVALVIA DI PERAIRAN PANTAI WAEMULANG KABUPATEN BURU SELATAN Efraim Samson; Daniati Kasale
Jurnal Biologi Tropis Vol. 20 No. 1 (2020): Januari - April
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (575.417 KB) | DOI: 10.29303/jbt.v20i1.1681

Abstract

Abstrak: Bivalvia merupakan anggota kelas moluska yang memiliki nilai ekonomis dan menjadikannya sering dieksploitasi berlebih oleh masyarakat. Penelitian ini bertujuan untuk mengetahui indeks keanekaragaman dan kelimpahan bivalvia di Perairan Pantai Waemulang Kabupaten Buru Selatan. Pengambilan sampel dilakukan pada kondisi air surut dengan menggunakan metode transek linear kuadrat yang disesuaikan dengan luas area Perairan Pantai Waemulang, panjang garis pantai dan relif pantai. Disamping itu, dilakukan pula pengukuran parameter fisik kimia lingkungan sebagai data pendukung. Hasil penelitian menunjukkan bahwa bivalvia yang ditemukan terdiri dari 5 Ordo, 5 Family, 6 Genus, dan 7 Spesies, yakni Anadara antiquata, Gafrarium dispar, Modiolus modiolus, Fragum unedo, Pinna bicolor, Anadara granosa, dan Tapes literatus. Nilai kelimpahan tertinggi terdapat pada spesies Anadara antiquata, yakni 5.495 dan kelimpahan relatifnya 16.22%. Sedangkan nilai kelimpahan terrendah terdapat pada spesies Tapes literatus, yakni 4.272, dan kelimpahan relatifnya 12.61%. Nilai indeks keanekaragaman, yakni 1.93 atau termasuk kategori sedang dan indeks dominansi sebesar 0.14 yang menunjukkan tidak ada dominansi spesies. Hasil pengukuran parameter fisik kimia pun masih berada dalam kisaran optimal sesuai dengan standar baku mutu air laut untuk biota laut. Guna pemanfaatan dan pengelolaan bivalvia secara berkelanjutan di Perairan Pantai Waemulang Kabupaten Buru Selatan maka diperlukan penelitian sejenis secara berkala.Kata Kunci: Bivalvia, Keanekaragaman, Kelimpahan, Waemulang.Abstract: Bivalves is a member of the mollusk class with economic value and makes it often over exploited by the community. This study aims to determine the diversity index and abundance of bivalves in the Waemulang Coastal Waters of South Buru Regency. Sampling is done at low tide conditions using the linear quadratic transect method that is adjusted to the area of Waemulang Coastal Waters, coastline length and coastline. Besides that, physical chemical parameters were also measured as supporting data. The results showed that bivalves were found to consist of 5 Orders, 5 Families, 6 Genera, and 7 Species, namely Anadara antiquata, Gafrarium dispar, Modiolus modiolus, Fragum unedo, Pinna bicolor, Anadara granosa, and Tapes literatus. The highest abundance was found in Anadara antiquata, which was 5,495 and its relative abundance was 16.22%. While the lowest abundance was found in Tapes literatus, which was 4.272, and the relative abundance was 12.61%. Diversity index value is 1.93 or including a medium category and dominance index of 0.14 which shows no species dominance. The results of the measurement of physical chemical parameters are still in the optimal range in accordance with sea water quality standards for marine biota. For the sustainable use and management of bivalves in the Waemulang Coastal Waters, South Buru Regency, regular research is needed.Keywords: Bivalves, Diversity, Abundance, Waemulang.
PERTUMBUHAN VEGETATIF TOMAT (SOLANUM LYCOPERSICUM MILL) PADA KERAGAMAN TIPE MULSA DAN DOSIS PUPUK ORGANIK Ahmad Raksun; Mahrus Mahrus; I Gde Mertha
Jurnal Biologi Tropis Vol. 20 No. 1 (2020): Januari - April
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (435.581 KB) | DOI: 10.29303/jbt.v20i1.1420

Abstract

Abstract: Upaya meningkatkan pertumbuhan dan hasil tanaman dapat dilakukan dengan aplikasi mulsa dan pupuk organik. Tujuan penelitian ini adalah untuk mengetahui: (1) pengaruh jenis mulsa terhadap pertumbuhan tomat, (2) pengaruh pupuk organik terhadap pertumbuhan tomat, (3) pengaruh interaksi antar jenis mulsa dan dosis pupuk organik terhadap pertumbuhan tomat. Dalam penelitian ini digunakan rancangan 2 faktor. Faktor pertama adalah 3 jenis mulsa yaitu mulsa plastik hitam perak, mulsa jerami padi dan mulsa daun-daun kering. Faktor kedua adalah dosis pupuk organik yang terdiri atas 6 level yaitu: P0 = 0 kg  pupuk organik (kontrol), P1 = pemberian 0,4 kg pupuk organik per 1 m2  lahan, P2 = pemberian 0,8 kg pupuk organik per 1 m2  lahan, P3 = pemberian 1,2 kg pupuk organik per 1 m2  lahan, P4 = pemberian 1,6 kg pupuk organik per 1 m2  lahan, P5 = pemberian 2,0 kg pupuk organik per 1 m2  lahan. Data penelitian dianalisis dengan analisis sidik ragam. Hasil penelitian menunjukkan bahwa (1) perbedaan jenis mulsa berpengaruh nyata terhadap pertumbuhan tanaman tomat (2) perbedaan dosis pupuk organik berpengaruh nyata terhadap pertumbuhan tanaman tomat,  (3) interaksi antara jenis mulsa dan dosis pupuk organik tidak berpengaruh nyata terhadap pertumbuhan tanaman tomat, (4) mulsa plastik hitam perak memberikan hasil tinggi batang, panjang helaian daun dan lebar helaian daun yang lebih baik dibandingkan jenis mulsa yang lain, (5) dosis optimum pupuk organik untuk tanaman tomat adalah 1,6 kg per 1 m2 lahan pertanian.Kata kunci : mulsa, pupuk organik, pertumbuhan tomatAbstract: Efforts to increase growth and yields can be done with the application of mulch and organic fertilizer. The purpose of this study is to find out. The research objective is to find out: (1) the effect of mulch type on tomato growth, (2) the effect of organic fertilizer on tomato growth, (2) the effect of interaction between types of mulch and the dose of organic fertilizer on tomato growth. This research used 2 factors design. The first factor is 3 types of mulch namely black silver plastic mulch, rice straw mulch and dried leaf mulch. The second factor is the dose of organic fertilizer consisting of 6 levels, namely: P0 = 0 kg of organic fertilizer (control), P1 = giving 0.4 kg of organic fertilizer per 1 m2 of land, P2 = giving 0.8 kg of organic fertilizer per 1 m2 of land, P3 = giving 1.2 kg of organic fertilizer per 1 m2 of land, P4 = giving 1.6 kg of fertilizer organic per 1 m2 of land, P5 = giving 2.0 kg of organic fertilizer per 1 m2 of land. Research data were analyzed by analysis of variance. The results showed that (1) the different types of mulch significantly affected the growth of tomato, (2) the difference in organic fertilizer dosages significantly affected the growth of tomato, (3) the interaction between the types of mulch and the dose of organic fertilizer did not significantly affect the growth of tomato, (4) silver black plastic mulch gives better stem height, leaf length and leaf width than other types of mulch, (5) optimum dose of organic fertilizer for tomato plants is 1.6 kg per 1 m2 of agricultural land.Keywords: mulch, organic fertilizer, tomato growth
LENGTH AT FIRST MATURITY, SPAWNING TIME, AND REPRODUCTIVE OUTPUT IN THE FEMALES OF HAMILTON’S ANCHOVY (THRYSSA HAMILTONII GRAY, 1835) Mohammad Mukhlis Kamal; Yunizar Ernawati; Nina Nurmalia Dewi
Jurnal Biologi Tropis Vol. 20 No. 1 (2020): Januari - April
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (547.317 KB) | DOI: 10.29303/jbt.v20i1.1623

Abstract

Abstract: The Hamilton’s anchovy (Thryssa hamiltonii Gray, 1835) is one of main target species in Indonesian small pelagic fishery. This engraulids member is characterized by short lifespan and fast reproductive cycle. The research aims were to explore the reproduction aspects of the females Hamilton’s anchovy in terms of changes in length at first maturity, spawning seasons, and fecundity as well as egg diameter as reproductive output. Fish was collected weekly during 2009 at fish landing site at Gebang Mekar, Cirebon. The fish was length measured, after which ovaries staged for gonadal maturity stage (GMS), fecundity, and eggs diameter. Length frequency data was all linked to this reproductive aspects. The results showed that Lm was 171.5 ± 1.62 mm, comparable to annual calculation of 171.05 ± 0.01 mm, Lc largely tend to smaller than Lm which indicated to unsustainable fishing. Fish spawns monthly with fecundity range between 3,456 – 15,843 (8,261 ± 2,776 eggs), it might be categorized as high fecundity fish relative to its body size. The distribution of eggs diameter showed 2-3 modus, i.e. they are partial spawner fish. The discrepancies in reproductive ouput is suggested to be influenced by seasons which characterized by different environmental conditions. Keywords: Hamilton’s anchovy, females, length, spawning, reproductive output
UJI DAYA HAMBAT ANTIBAKTERI AIR PERASAN DAGING BUAH NANAS (ANANAS COMOSUS (L) MERR VAR. QUEEN) TERHADAP BAKTERI PROPIONIBACTERIUM ACNES Sarwendah Sarwendah; Yusliana Yusliana; Heronimus Candra G Laia; Pieter Julius Daely; Linda Chiuman
Jurnal Biologi Tropis Vol. 20 No. 1 (2020): Januari - April
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v20i1.1055

Abstract

Abstrak: Buah nanas (Ananas comosus (L) Merr) merupakan salah satu jenis buah-buahan tropis yang banyak diminati masyarakat. Buah nanas biasa dingunakan masyarakat sebagai antibakteri, antiinflamasi, antikoagulan, dan antikanker. Tujuan dari penelitian ini untuk mengetahui uji daya hambat anti bakteri air perasan daging buah nanas (Ananas comosus (L) Merr Var.  Queen) terhadap bakteri Propionibacterium acnes. Penelitian ini merupakan penelitian eksperimental laboratorium dengan menggunakan metode difusi kertas cakram. Hasil dari penelitian menunjukkan bahwa air perasan daging buah nanas (Ananas comosus (L) Merr Var. Queen) pada konsentrasi 25%, 50%, 75%, 100% memiliki efektivitas sedang sebagai antibakteri dalam menghambat pertumbuhan bakteri Propionibacterium acnes, pada kontrol positif yang menggunakan klindamisin dengan rata-rata diameter zona hambat sebesar 25,8 mm memiliki pengaruh antibakteri yang sangat kuat dan untuk kontrol negatif dengan menggunakan aquades tidak menunjukkan zona hambat 0 mm pada bakteri Propionibacterium acnes.Kata kunci: Buah nanas, propionibacterium acnes, daya hambat antibakteri.Abstract: Pineapple (Ananas comosus (L) Merr) is one of the most popular fruit among people, Pineapple is used as antibacterial, anti-inlfammatory, anticoagulant and anticancer. The purpose of this study is to determine the antibacterial inhibitory test of pineapple juice (Ananas comosus (L) Merr Var. Queen) against Propionibacterium acnes. This research is a laboratory experimental using paper disc diffisuion method. The results of this study indicate that pineapple juice at concentration of 25%, 50%, 75%, 100% it has a moderately antibacterial effectiveness in inhibit the growth of Propionibacterium acnes, positive control using clindamycin with an average inhibition zone diameter of 25.8 mm has a very strong antibacterial effect and for negative control using aquades does not show 0 mm inhibition zone in Propionibacterium acnes bacteria.Keywords: Pineapple fruit, propionibacterium acnes, antibacterial inhibition.
AUTENTIKASI SPESIES IKAN KERAPU BERDASARKAN MARKA GEN MT-COI DARI PERAIRAN PEUKAN BADA, ACEH Mohammad Mukhlis Kamal; Agus Alim Hakim; Nurlisa Alias Butet; Yulia Fitrianingsih; Rika Astuti
Jurnal Biologi Tropis Vol. 19 No. 2 (2019): Juli - Desember
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (435.161 KB) | DOI: 10.29303/jbt.v19i2.1245

Abstract

Abstrak : Variasi bentuk dan pola pewarnaan tubuh ikan kerapu (Famili Serranidae) sangat variatif, sehingga pengenalan spesies secara morfologis sering tidak akurat. Penelitian ini bertujuan untuk mengautentikasi ikan kerapu dengan menggunakan marka gen COI. Contoh ikan kerapu yang diamati berjumlah 29 ekor yang dikumpulkan dari tiga tempat pendaratan ikan di Perairan Peukan Bada, Propinsi Aceh. Secara karakter morfologis, ikan kerapu tersebut teridentifikasi lebih dari 8 spesies. Untuk analisis DNA, sebanyak 30 mg daging sirip dari setiap ikan contoh diambil untuk dilakukan isolasi dan ekstraksi DNA, kemudian visualisasi elektroforesis dan fragmentasi DNA gen COI dengan metode PCR-sekuensing. Setelah diekstraksi, diperoleh 20 sampel DNA yang tervisualisasi dengan baik, yang dari jumlah tersebut terdapat 16 sampel dapat diamplifikasi. Hasilnya menunjukkan terdapat 6 spesies yang terautentikasi. Kelompok pertama adalah Variola albimarginata, Cephalopholis urodeta, dan C. sexmaculata dengan tingkat kemiripan ≥ 97%. Berikutnya C. boenak, Epinephelus merra, dan Scolopsis vosmeri tingkat kemiripannya ≤ 97%. Bila dibandingkan hasil autentikasi DNA, hasil penelitian menunjukkan bahwa 13 sampel atau > 80% tidak teridentifikasi dengan benar secara morfologis. Berdasarkan jarak genetik, pohon filogeni membentuk 2 clade antara Serranidae dan Nemipteridae. Hasil penelitian menunjukkan bahwa penggunaan marka gen COI sangat efektif untuk autentikasi spesies yang dapat dijadikan sebagai instrumen dalam pemanfaatan dan pengelolaan ikan kerapu.Kata kunci : kerapu, variasi morfologi, gen MT-COI, autentikasi.Abstract : The groupers (family Serranidae) show high variability both in body shapes and coloration leads to highly morphological-based misidentification. The research was aimed in autenthication of the grouper species using MT-COI gene. A total of 29 grouper fishes were collected from three fish landing sites of Peukan Bada, Aceh Province. These fishes were morphologically identified from which more than 8 species were obtained. A 30 mg of the fin meat of each sample was taken for DNA extraction, isolation, electrophoresis visualization, and DNA fragmentation of COI gene using PCR-sequenching.  There were 20 DNA samples was clearly visualized of which 16 has been proceeded for amplification. The results showed that V. albimarginata, C. urodeta, and C. sexmaculata showed ≥ 97% similarity, whereas C. boenak, E. merra, dan S. vosmeri with ≤ 97% similarity. Based on phylogenetic tree analysis there was 2 clearly different clades separating family of Serranidae and Nemipteridae. The use of MT-COI gene was effective and accurate tool in species authentication which could be used as an instrument for utilization and management of the grouper species.Keywords : groupers, morphological variation, MT-COI gene, autenthication.
UJI EFEKTIVITAS EKSTRAK BUAH KESEMEK (DYOSPIROS KAKI L.) SEBAGAI ANTIBAKTERI TERHADAP BAKTERI ESCHERICHIA COLI Therry Prosperita K. Wau; Diaz F. Izdihar; Katherine Gunawan; Yolanda Eliza Putri Lubis
Jurnal Biologi Tropis Vol. 19 No. 2 (2019): Juli - Desember
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v19i2.1049

Abstract

Abstrak : Kesemek (Dyospyros kaki L.) merupakan buah yang berada di tanaman dataran tinggi (pegunungan). Dapat tumbuh dimana saja pada suhu rendah, kelembapan tinggi, intensitas matahari tidak 100% (teduh/mendung). Buah ini mempunyai kandungan senyawa yang memiliki potensi antimikroba yang menghambat pertumbuhan bakteri Escherichia coli. Penelitian ini bertujuan untuk mengetahui adanya efektifitas ekstrak kesemek terhadap pertumbuhan bakteri Escherichia coli pada konsentrasi 100%, 90%, 80%, 70%, 60%, dan 50%. Penelitian ini merupakan penelitian eksperimental laboratotium dengan metode difusi cakram.. Parameter yang diukur adalah besarnya zona hambat minimum dan zona hambat optimum ekstrak terhadap bakteri.  Hasil penelitian didapatkan ekstrak buah kesemek memiliki efektivitas antibakteri pada Escherichia coli, dimanazona hambat minimum rata-ratanya pada konsentrasi 70% (6,1 mm) dan zona hambat optimum rata-rata pada konsentrasi 100% (8,8 mm). Semakin tinggi konsentrasi ekstrak yang diberi maka semakin besar daya antibakterinya. Hasil ini menunjukan bahwa ekstrak buah kesemek memiliki efektivitas antibakteri yang lemah terhadap pertumbuhan bakteri Escherichia coli sesuai klasifikasi respon zona hambat bakteri.Kata kunci: Kesemek (Dyospyros kaki L.), antibakteri, Escherichia coli Abstract : Persimmon (Dyospyros kaki L.) is a fruit that is in highland (mountain) plants. Can grow anywhere at low temperatures, high humidity, the intensity of the sun is not 100% (shade / cloudy). This fruit contains compounds that have antimicrobial potential which inhibits the growth of Escherichia coli bacteria. This study aims to determine the effectiveness of persimmon extract on the growth of Escherichia coli bacteria at concentrations of 100%, 90%, 80%, 70%, 60%, and 50%. This study was an experimental laboratory with disc diffusion method. The parameters measured were the size of the minimum inhibition zone and the optimum zone of extract inhibition against bacteria. The results showed persimmon fruit extracts had antibacterial effectiveness in Escherichia coli, where the minimum inhibition zone was at a concentration of 70% (6.1 mm) and the optimum inhibition zone averaged at a concentration of 100% (8.8 mm). The higher the concentration of extract given, the greater the antibacterial power. These results indicate that persimmon fruit extract has a weak antibacterial effectiveness against the growth of Escherichia coli bacteria according to the classification of bacterial inhibitory zone responses.Keywords: Persimmon (Dyospyros kaki L.), antibacterial, Escherichia coli
PENGARUH LAJU PEMUASAAN SECARA PERIODIK TERHADAP PERTUMBUHAN KELANGSUNGAN HIDUP DAN KECERAHAN WARNA IKAN BADUT AMPHIPRION OCELLARIS Uswatun Hasanah; Ayu Adhita Damayanti; Fariq Azhar
Jurnal Biologi Tropis Vol. 20 No. 1 (2020): Januari - April
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v20i1.1337

Abstract

Abstrak: Budidaya ikan badut Amphiprion ocellaris terus dikembangkan hingga saat ini guna menghasilkan ikan badut yang memiliki pertumbuhan, kelangsungan hidup dan kecerahan warna yang baik. Salah satu permasalahan dalam budidaya ikan badut adalah harga pakan yang cukup tinggi. Tujuan penelitian ini yaitu untuk mengetahui pengaruh laju pemuasaan secara periodik terhadap pertumbuhan, kelangsungan hidup dan kecerahan warna ikan badut Amphiprion ocellaris. Metode yang digunakan dalam penelitian ini adalah metode eksperimental dengan menggunakan Rancangan Acak Lengkap yang terdiri dari empat perlakuan dan tiga ulangan, yaitu P1 (tanpa pemuasaan), P2 (1 hari dipuasakan 1 hari diberi pakan), P3 (1 hari dipuasakan 2 hari diberi pakan), P4 (1 hari dipuasakan dan 3 hari diberi pakan) sehingga terdapat 12 unit total percobaan. Data yang diperoleh dianalisis menggunakan uji sidik ragam (One way Anova). Hasil penelitian yang diperoleh adalah pertumbuhan, kelangsungan hidup dan kecerahan warna ikan badut yang mengalami laju pemuasaan secara periodik tidak berbeda nyata (p>0.05) dengan ikan badut yang tidak dipuasakan. Hal ini menunjukkan bahwa ikan badut Amphiprion ocellaris dapat dipuasakan hingga periode 1 hari dipuasakan dan 1 hari diberi pakan yang mengalami total pemuasaan sebanyak 20 hari tanpa menurunkan pertumbuhannya. Pembudidaya ikan badut Amphiprion ocellaris direkomendasikan dapat menggunakan semua periode pemuasaan seperti yang diterapkan pada penelitian ini, namun untuk waktu pemuasaan yang lebih lama diperlukan penelitian lebih lanjut oleh para peneliti.   Kata kunci: Pemuasaan, ikan badut, pertumbuhan, kelangsungan hidup, kecerahan warnaAbstract: Amphiprion ocellaris clown fish cultivation continues to be developed today to produce clown fish that have good survival growth and colour brightness.  This study aims to determine the effect of periodic fasting rates on growth, survival and colour brightness of the Amphiprion ocellaris clown fish. The method used in this study is an experimental method using a Completely Randomized Design consisting of four treatments and three replications, namely P1 (without fasting), P2 (1 day fasted 1 day fed), P3 (1 day fasted 2 days fed), P4 (1 day fasted and 3 days fed) so that there are 12 total experimental units. The data obtained were analyzed using the one way Anova variance test. The results obtained were growth, survival and color brightness of clown fish that experienced periodic mastery rates were not significantly different (p> 0.05) from clown fish that were not fasted.This shows that the clown fish Amphiprion ocellaris can be fasted until a period of 1 day fasted and 1 day fed with a total mastery of 20 days without reducing growth. Amphiprion ocellaris clown fish farmers are recommended to be able to use all periods of mastery as applied in this study but for a longer mastery time further research is needed by esearchers.Keywords: Mastery, clown fish, growth, survival, colour brightness 
INVENTARISASI DAN KAJIAN PALINOLOGI JENIS-JENIS TUMBUHAN PAKU (PTERODOFITA) EPIFIT DI KAWASAN UNIVERSITAS RIAU, PROVINSI RIAU Nery Sofiyanti; Putri Handayani Harahap
Jurnal Biologi Tropis Vol. 19 No. 2 (2019): Juli - Desember
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (288.966 KB) | DOI: 10.29303/jbt.v19i2.1266

Abstract

Abstrak : Tumbuhan paku  (Pteridofita) epifit banyak di jumpai di kawasan Universitas Riau. Karakteristik spora pada tumbuhn apaku memegang peranan penting dalam kajian taksonomi. Penelitian ini bertujuan untuk mengidentifikasi jenis-jenis pteridofita epifit di kawasan ini dan  mengkarakterisasi sporanya. Metode pengambilan sampel dilakukan menggunakan metode eksplorasi. Setiap jenis yang dijumpai didokumentasikan, dibuat herbarium, dideskripsi dan diidentifikasi. Spora dikoleksi dari daun yang sudah dewasa dan dibuat preparat menggunakan metode asetolisis. Preparat spora diamati dan didokumentasikan menggunakan mikroskop digital. Data yang diperoleh kemudian disajikan dalam bentuk gambar dan tabel serta dianalisis secara deskriptif. Hasil inventarisasi paku epifit di kawasan Universitas Riau mengidentifikasi 18 jenis paku epifit, yang tergolong ke dalam 6 famili yaitu Aspleniaceae, Davalliaceae, Nephrolepidaceae, Polypodiaceae Pteridaceae and Thelypteridaceae. Namun kajian palinologi hanya dilakukan pada 11 jenis yang sudah menghasilkan spora. Hasil pengamatan spora menunjukan bahwa semua jenis paku epifit mempunyai tipe dasar spora monolete, berbentuk ginjal dan hanya mempunyai satu laesura pada bagian ventral. Ukuran spora yang dijumpai adalah besar dan sangat besar, dengan ornamentasi permukaan Lohpat, verukat berpapila verukat, tuberkulat, ekinat pendek dan ekinat panjang. Morfologi spora yang ditemukan pada penelitian ini menunjukan karakteristik yang berbeda pada setiap jenis. Namun masih perlu dilanjutkan pengamatan menggunakan Scanning Electron Microscopy untuk mendapatkan oramentasi lebih detilKata kunci : paku epifit, palinologi, spora, monolete, UNRI Abstract : Ephypitic ferns are commonly found in University of Riau area. Spore characteristics play important role in taxonomical words. This study aimed to identify ephypitic pteridophyte species from this area and characterize their spore. Samples were collected using exploration method, and were then documented, prepared for herbarium, described and identified. Spore grains were collected from mature leaves and prepared by using acetolysis method. The spores were then observed and documented using digital microscope. Data were presented in figures and tables and describtively analized. The inventory of ephypitic ferns from University of Riau area identified a total of 18 fern species belong to 6 families, i.e. Aspleniaceae, Davalliaceae, Nephrolepidaceae, Polypodiaceae, Pteridaceae and Thelypteridaceae. Palinologycal study had been carried out from 11 species that produced spore. We observed the basic spore type of examined ephypitic ferns, monolete, with reniform shape and one laesura at the ventral part. The size of spore observed were big and very big spore, with surface ornamentation Lohpate, papillous verucate,  verucate,  tuberculate,, short echinate and long echinate. Spore morphology observed in this study showed the characteristic among the examined species. The further study using Scanning Electron Microscopy is neccesary to obtain detail spore ornamentation.Keywords: ephypitic fern, palynology, spore, monolete, UNRI
PLANT MATERIALS TRANSFERRED MANAGEMENT: A PART OF EX-SITU CONSERVATION BUSINESS PROCESS OF CIBODAS BOTANIC GARDENS Imawan Wahyu Hidayat; Yudi Suhendri
Jurnal Biologi Tropis Vol. 20 No. 1 (2020): Januari - April
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (796.552 KB) | DOI: 10.29303/jbt.v20i1.1395

Abstract

Abstract: One of the botanic gardens businesses is socializing cultivated plants from the garden to be further utilized, especially for reforestation (and other conservation purposes), research and educational purposes. This socialization can be conducted through seeds exchange and plant (and parts) that transferred for various users. Cibodas Botanic Gardens (CBG), as one of the Indonesian botanic gardens, is also conducted this activity. Plant materials and so the data needed for these purposes are recorded in the material(s) transfer agreement (MTA). The study aimed to analyze the number, type, and species of transferred plant materials and the data, the background of the applicants and for what purpose of the materials is needed based on MTA’s documents. This study conducted through a quantitative descriptive method based on the materials transferred from 2013 to 2018. The results described that, for six years, the number of MTA was 86 documents, with 81 applicants. The applicants from local were 92.6% and foreign such as from China, Netherlands and Japan were 7.4%. For six last years, the transferred materials included 1,205 in the form of living plants, 201 specimens in form of herbarium, 8,605 specimens in the form of seeds, many thousands various unit of part of plant, plant propagation unit and other plant materials (i.e. mycorrhiza, fungi/ lichen/ moss, rhizoid and thallus, and ascoma), and 63 unit in the form of data and other information. The results expected to be able to describe the contribution range of CBG, especially in ex-situ plant conservation and the data, both on the local and international scale.Keywords: plant materials; material(s) transfer agreement (MTA); ex-situ plant conservation; Cibodas Botanic Gardens (CBG)
KONDISI EKSISTING FAUNA MEGABENTHOS DI PERAIRAN LABUHAN PANDAN LOMBOK TIMUR PASCA GEMPA BUMI LOMBOK 7.0 SKALA RICHTER Noar Muda Satyawan; Novita Tri Atriningrum
Jurnal Biologi Tropis Vol. 19 No. 2 (2019): Juli - Desember
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v19i2.1303

Abstract

Abstrak : Gangguan eksternal pada ekosistem terumbu karang dapat terjadi secara alami ataupun karena aktifitas manusia yang menimbulkan perubahan fisik maupun ekologis. Perubahan ekologis dapat terlihat dari perubahan komposisi biota yang berasosiasi di dalamnya. Salah satu kelompok biota yang berasosiasi dengan terumbu karang adalah megabenthos. Tujuan dari penelitian ini adalah untk mengetahui kondisi eksisting fauna megabenthos pada ekosistem terumbu karang di perairan Labuhan Pandan Lombok Timur. Pengamatan dilakukan pada 5 stasiun yaitu Gili Bidara (BDR_01), Gili Kondo (KND_01), Gili Petagan 1 (PTG_01), Gili Petagan 2 (PTG_02), dan Gili Petagan 3 (PTG_03). Pengambilan data megabenthos dilakukan dengan metode Benthos Belt Transect (BBT). Hasil penelitian menunjukkan bahwa ditemukan 15 jenis megabenthos yang termasuk dalam 5 Phylum (Mollusca, Echinodermata, Chordata, Annelida, dan Platyhelminthes). Jumlah jenis tertinggi ditemukan pada phylum Echinodermata (10 jenis), kemudian diikuti oleh Mollusca (2 jenis), Chordata (1 jenis), Annelida (1 jenis), dan Platyhelminthes (1 jenis). Kepadatan megabenthos tertinggi ditemukan pada stasiun BDR_01 (10.571 ind/Ha), kemudian diikuti oleh stasiun KND_01 (10.214 ind/Ha), PTG_02 (9.857 ind/Ha), PTG_03 (8.429 ind/Ha) dan PTG_01 (1.714 ind/Ha). Keanekaragaman jenis tertingi ditemukan pada stasiun PTG_01 (H’=1,14), kemudian diikuti oleh BDR_01 (H’=0,76), KND_01 (H’=0,69), PTG_03 (H’=0,17) dan PTG_02 (H’=0,09). Hasil perhitungan indeks dominansi menunjukkan bahwa Didemnum molle (phylum Chordata)  ditemukan dominan pada seluruh stasiun pengamatan. Ditemukan juga jenis megabenthos pemangsa hewan karang yaitu Acanthaster planci pada stasiun PTG_03 serta Drupella sp. pada stasiun BDR_01, KND_01 dan PTG_02. Beberapa jenis megabenthos yang ditemukan dapat dijadikan bioindikator dalam pemantauan kesehatan ekosistem terumbu karang di Perairan Labuhan Pandan, Lombok Timur.Kata Kunci: Kondisi eksisting, Megabenthos, Gempa Bumi, Labuhan Pandan, Lombok TimurAbstract: External disturbance to the coral reef ecosystem occured by naturally or due to human activities that cause physical and ecological changes. Ecological changes could be seen from changes in the composition of the associated biota. One of the biota groups that associated with coral reefs were megabenthos. The purpose of this study were to determine the condition of the megabenthos fauna on coral reef ecosystems in the Labuhan Pandan waters, Eastern Lombok. Observations were made at 5 stations namely Gili Bidara (BDR_01), Gili Kondo (KND_01), Gili Petagan 1 (PTG_01), Gili Petagan 2 (PTG_02), and Gili Petagan 3 (PTG_03). Data of Megabenthos were collected by Benthos Belt Transect (BBT) method. The results showed that found 15 species of megabenthos included in 5 phylum (Mollusca, Echinoderm, Chordata, Annelida, and Platyhelminthes). The highest number of species were found in Echinoderms phylum (10 species), followed by Mollusca (2 species), Chordata (1 species), Annelida (1 species), and Platyhelminthes (1 species). The highest megabenthos density were found at BDR_01 station (10,571 ind / Ha), then followed by stations KND_01 (10,214 ind / Ha), PTG_02 (9,857 ind / Ha), PTG_03 (8,429 ind / Ha) and PTG_01 (1,714 ind / Ha). The highest species diversity were found at stations PTG_01 (H '= 1.14), then followed by BDR_01 (H' = 0.76), KND_01 (H '= 0.69), PTG_03 (H' = 0.17) and PTG_02 (H '= 0.09). The calculation result of dominance index shows that Didemnum molle (phylum Chordata) were found dominant in all observation stations. Also found species of coral predator Acanthaster planci at PTG_03 station and Drupella sp. at stations BDR_01, KND_01 and PTG_02. Several species of megabenthos can be used as bioindicators to monitoring of coral reef health in Labuhan Pandan Waters, East Lombok.Keywords: Existing conditions, megabenthos, earthquake, Labuhan Pandan, Eastern Lombok  

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