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All Journal Jurnal Biologi Tropis Jurnal Pengabdian Magister Pendidikan IPA
Lalu Japa
Pendidikan Biologi FKIP Universitas Mataram
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology

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Abundance and Diversity of Diatom Class Bacillariophyceae as Bioindictaor of Pollution in the Waters of Tanjung Luar Fish Landing Based Niswatul Audah; Lalu Japa; M. Yamin
Jurnal Biologi Tropis Vol. 20 No. 3 (2020): September - Desember
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v20i3.2343

Abstract

Tanjung Luar is coastal water used as a waste disposal area for Fish Landing Based (FLB) activities. However, the condition of the waters with phytoplankton as a bioindicator has never been reporting. This research aims to know Bacillariophyceae in terms of abundance, diversity, and measurement of environmental pollution variables. Methods Sampling at the study location was determined by a systematic random sampling method. Data analysis Bacillariophyceae were determined using formula abundance, diversity index, and dominance index. The index of similarity of species between sample points was determined based on the Bray-Curtis Cluster Analysis. Furthermore, the results showed an abundance of Bacillaryophyceae of 322,000 individuals / L classified as low, the diversity index of Bacillariophyceae of 2.162 classified as moderate, and a dominance index of 0.138 (without dominating species). The results showed that the highest species similarity index was between sample points II and III (57.9%), and the lowest species similarity index between sample points I and II was 23.7%. Water pollution on the waters of PPI Tanjung Luar is classified as moderate pollution level and oligotrophic fertility.
Community of Mangrove Category Tree and Sapling in The Sekotong Bay, West Lombok Lalu Japa; Karnan Karnan; Didik Santoso
Jurnal Biologi Tropis Vol. 21 No. 2 (2021): Mei - Agustus
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v21i2.2698

Abstract

Community of mangrove in the Bay of Sekotong, West Lombok was studied to know the species composition, individual density of each species, and percentage covering of mangrove canopy. Total 28 plots of 10 m x 10 m were set in 9 transects in 5 stations. Photographs of canopy covering and mangrove community composition were analyzed by using software ImageJ and template spreadsheet 10x10, the new version of March 2018. The community of mangrove of Sekotong bay, West Lombok consists of 8 species, 5 genera, and 4 families. Rhizophora apiculata & Rhizophora stylosa were recorded in seven of nine transects (78% of transect).  Ceriops tagal was a species that was also recorded to have the highest density (3700 trees/ha) in transect SKTM02B. The average density of the mangrove sapling category was higher than the mangrove tree category. The three highest covering percentages of canopi mangrove community took place in transects SKTM01A, SKTM01B, and SKTM04T.
Abundance and Diversity of Diatom Class Bacillariophyceae in the Waters of Tanjung Luar Fish Landing Based Niswatul Audah; Lalu Japa; M. Yamin
Jurnal Biologi Tropis Vol. 21 No. 2 (2021): Mei - Agustus
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v21i2.2699

Abstract

Diatom class Bacillariophyceae are world wide distribution and commonly dominated the phytoplankton community. The community of diatom class Bacillariophyceae of the waters Tanjung Luar Fish Landing Based (FLB) has never been reported. This study aims to determine the abundance and diversity of diatom class Bacillariophyceae. The sampling sites were determined by using a systematic random sampling method. Data of diatom class Bacillariophyceae were analyzed for species abundance, species diversity index and species dominance index calculations. The results showed, that the abundance of diatom class Bacillariophyceae species were 322.000 ind/L (low category), the species diversity index of diatom class Bacillariophyceae was 2.162 (moderate category), and the species dominance index was 0.138 (none of species dominance).
Pendampingan Masyarakat dalam Pengolahan Limbah Peternakan Sapi untuk Meningkatkan Pertumbuhan Tanaman Ahmad Raksun; Lalu Zulkifli; Mahrus Mahrus; Lalu Japa; Prapti Sedijani
Jurnal Pengabdian Magister Pendidikan IPA Vol 2 No 2 (2019)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (237.587 KB) | DOI: 10.29303/jpmpi.v2i1.351

Abstract

Pengabdian pada masyarakat ini telah dilaksanakan di Desa Jatisela Kecamatan Gunung Sari Kabupaten Lombok Barat Propinsi Nusa Tenggara Barat. Sebagian masyarakat Desa Jatisela yang bermatapencaharian sebagai petani, kuhusnya yang berdomisili di Dusun Ireng Daye memiliki usaha sampingan yaitu beternak sapi, kuda dan kambing. Mereka membentuk kelompok ternak yang disebut Kelompok Ternak Patuh Angen. Kegiatan peternakan sapi yang dilakukan oleh Kelompok Ternak Patuh Angen menghasilkan limbah berupa kotoran ternak dan sisa makanan ternak. Peternak sapi di Dusun Ireng Daye belum menemukan alternatif pemecahan masalah limbah peternakan sapi yang ada di sekitar tempat tinggal mereka. Pengolahan limbah peternakan sapi menjadi pupuk organik merupakan alternatif pemecahan masalah yang dapat diterapkan untuk mengatasi permasalahan yang mereka hadapi. Pupuk organik yang dihasilkan dapat dijadikan pupuk untuk meningkatkan hasil panen tanaman. Adapun tahapan kerja pengolahan limbah peternakan sapi menjadi bokashi dan pemanfatannya pada lahan pertanian adalah sebagai berikut: (1) sosialisasi kegiatan, (2) penyampaian materi tentang kebersihan lingkungan, cara pembuatan bokashi dan manfaat bokashi untuk pertumbuhan tanaman, (3) pembuatan bokashi, (3) penggunaan bokashi pada lahan pertanian.  Metotode yang digunakan adalah metode ceramah, diskusi, pelatihan dan pendampingan. Dalam pelaksanaan kegiatan ini nampak bahwa masyarakat yang menjadi mitra kegiatan telaah mengikuti kegiatan dengan baik mulai dari sosialisasi kegiatan sampai pada kegiatan terakhir pelaksanaan pengabdian. Hal ini dapat dilihat dari banyaknya pertanyaan yang diajukan peserta yang terkait dengan materi yang disampaikan tim pelaksana pada saat diskusi. Selain itu pada saat praktek pembuatan bokashi semua peserta ikut bekerja secara aktif sehingga kegiatan paraktek pembuatan bokashi dapat berjalan lancer. Kata Kunci: Pendampingan masyarakat; pengelolaan limbah; peternakan sapi; pertumbuhan tanaman.
Co-Authors Ahmad Raksun Didik Santoso Karnan Karnan Lalu Zulkifli M. Yamin Mahrus Mahrus Niswatul Audah Prapti Sedijani