Garuda - Garba Rujukan Digital

The Community Structure of Phytoplankton in Seagrass Ecosystem and its Relationship with Environmental Characterstics Setiabudi, Gede Iwan; Bengen, Dietriech G.; Effendi, Hefni; Radjasa, Ocky Karna
Biosaintifika: Journal of Biology & Biology Education Vol 8, No 3 (2016): December 2016
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v8i3.6549

The aimed of this study was to determine the plankton communities and its relationship with the chemical and physical condition in seagrass ecosystem at Pegametan Bay. The composition and abundance of plankton were observed in the sea water underneath the surface and were identified based on the guideline of Illustration of the Marine Plankton of Japan. The water quality was measured in situ using WQC HI 9829. The water sample was measured using closed reflux spectrometry for COD, TOC analyzer for DOC and APHA 2102 (4500) method for Nt and Pt. There are 27 species of plankton identified, which can be classified into three groups. Diatom group consists of 18 species with a 74.56% abundance. The non-litoral group consists of 6 species with a 23.35% abundance. Moreover, dinoflagellate group consist of 3 species with a 2.09% abundance. An abundance of plankton greater than 104 cell.L-1 was found in diatome group (Nitzschia sp., Thalassiosira sp., Chaetoceros sp., Flagillaria sp., Thalassiothrix sp., and Melosira sp.) and non-litoral group (Oscillatoria sp. and Spirogyra sp.). The abundance of those species indicated the algae bloom phenomenon. Dinophysis sp. was also identified, which was harmful algal blooms.How to CiteSetiabudi, G. I., Bengen, D. G., Effendi, H., & Radjasa, O. K. (2016). The Community Structure of Phytoplankton in Seagrass Ecosystem and its Relationship with Environmental Characterstics. Biosaintifika: Journal of Biology & Biology Education, 8(3), 257-269.

DIVERSITAS SPESIES IKANPADA EKOSISTEM PESISIR DESA PACUNG KABUPATEN BULELENG BALI Setiabudi, Gede Iwan; Merta, Gede; Sakti, Maria Niken Tri Ubaya; Mariasa, I Putu Mangku
Prosiding Seminar Nasional MIPA Vol 8 (2018): PROSIDING SEMINAR NASIONAL MIPA UNDIKSHA 2018
Publisher : Prosiding Seminar Nasional MIPA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Tujuan penelitian ini adalah untuk mengetahui diversitas ekosistem pesisir Desa Pacung Kecamatan Tejakula Buleleng, Bali. Hal tersebut berkaitan dengan pencadangan desa tersebut untuk RZWP3K (Rencana Zonasi Wilayah Perairan dan pulau-pulau Kecil) di kawasan perairan Kabupaten Buleleng. Hasilnya akan menjadi bahan pertimbangan untuk mengambil keputusan zonasi wilayah perairan. Metode yang digunakan mengambil data dibagi 2 yaitu wawancara dan untuk data bawah air digunakan tehnik penyelaman, videografi dan fotografi. Pengambilan data dilakukan pada 18 stasiun di bulan Maret 2018. Jumlah ikan yang berhasil diidentifikasi adalah 73 spesies. Jumlah tersebut berasal dari 10 ordo yaitu Callionimiformes, Gobiiformes, Perciformes, Pleuronectiformes, Scombriformes, Scorpaeniformes, Tetraodontiformes dan Trachiniformes. Ordo yang mendominasi adalah Perciformes, sebesar 80,2%. Delapan ordo ikan yang teridentifikasi berasal dari kawasan dengan tutupan terumbu karang yang rendah.Kata Kunci: Diversitas, Ikan, Ordo, Perciformes, Pacung

“ULVA” PENGEMBANGAN TEKNIK PENANDA ALAMI PADA BUDIDAYA ABALON (Haliotis squamata) Gusti Ngurah Permana; Ibnu Rusdi; Gigih Satria Wibawa; Gede Iwan Setiabudi
JFMR (Journal of Fisheries and Marine Research) Vol 5, No 1 (2021): JFMR VOL 5 NO.1
Publisher : JFMR (Journal of Fisheries and Marine Research)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2021.005.01.7

"ULVA" NATURAL MARKING TECHNIQUES DEVELOPMENT IN ABALONE CULTURE (Haliotis squamata) By Gusti Ngurah Permana,, Ibnu Rusdia, Gigih Satria Wibawaa and Iwan SetyabudibTagging is used to obtain some information during the process of selecting and managing population of abalone shells, Haliotis squamata. This research was conducted to determine the natural marker method of abalone, (H. squamata). The samples were used of total length of the shell (initial average: 0.8 ± 0.2 mm). Seed tagging using the Ulva sp. performed by giving a sequence of feed at the age of: 2-3 months (Ulva sp.), 3-4 months (Gracilaria sp.), 5-6 months (Ulva sp.), 6-10 months (Gracillaria sp.) and control 2 months (Ulva sp.), 3-10 months (Gracilaria sp.). The results of this study indicated that the tagging of the seeds with the Ulva method has a same growth pattern in both treatment and control (38.93 ± 1.5 mm; 39.47 ± 1.44 mm). The effectiveness of Ulva tagging is seen in toca color finder (TC. 4103 green) and (TC 8135 brown), more sharpen in treatment compared to control. Ulva tagging technology can be applied to abalone seeds to see the sequence of the green color on the shell.

Diversitas Spesies Ikanpada Ekosistem Pesisir Desa Pacung Kabupaten Buleleng Bali Gede Iwan Setiabudi; Gede Merta; Maria Niken Tri Ubaya Sakti; I Putu Mangku Mariasa
Prosiding Seminar Nasional MIPA Vol. 8 (2018): PROSIDING SEMINAR NASIONAL MIPA UNDIKSHA 2018
Publisher : Prosiding Seminar Nasional MIPA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Tujuan penelitian ini adalah untuk mengetahui diversitas ekosistem pesisir Desa Pacung Kecamatan Tejakula Buleleng, Bali. Hal tersebut berkaitan dengan pencadangan desa tersebut untuk RZWP3K (Rencana Zonasi Wilayah Perairan dan pulau-pulau Kecil) di kawasan perairan Kabupaten Buleleng. Hasilnya akan menjadi bahan pertimbangan untuk mengambil keputusan zonasi wilayah perairan. Metode yang digunakan mengambil data dibagi 2 yaitu wawancara dan untuk data bawah air digunakan tehnik penyelaman, videografi dan fotografi. Pengambilan data dilakukan pada 18 stasiun di bulan Maret 2018. Jumlah ikan yang berhasil diidentifikasi adalah 73 spesies. Jumlah tersebut berasal dari 10 ordo yaitu Callionimiformes, Gobiiformes, Perciformes, Pleuronectiformes, Scombriformes, Scorpaeniformes, Tetraodontiformes dan Trachiniformes. Ordo yang mendominasi adalah Perciformes, sebesar 80,2%. Delapan ordo ikan yang teridentifikasi berasal dari kawasan dengan tutupan terumbu karang yang rendah.Kata Kunci: Diversitas, Ikan, Ordo, Perciformes, Pacung

KONDISI PADANG LAMUN DI PESISIR BALI UTARA BERDASARKAN JUMLAH SPESIES, JUMLAH ALGA, DAN PERSENTASE TUTUPAN Nuryani Wigdati; Gede Iwan Setiabudi; E. Elvan Ampou; I Nyoman Surana
JFMR (Journal of Fisheries and Marine Research) Vol 5, No 2 (2021): JFMR VOL 5 NO.2
Publisher : JFMR (Journal of Fisheries and Marine Research)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2021.005.02.33

Identifikasi kondisi padang lamun di perairan Bali Utara telah dilakukan pada Agustus dan September 2020 di Sumberkima, Lovina, Panimbangan, dan Pacung. Tujuan kajian ini untuk mengidentifikasi kondisi padang lamun di perairan Bali Utara berdasarkan jumlah jenis lamun, persentase tutupan lamun, dan jumlah jenis alga. Metode transek garis tegak lurus garis pantai serta foto atau video diaplikasikan untuk pengambilan ketiga jenis data tersebut. Analisis kondisi lamun dilakukan dengan metode penilaian dan pembobotan. Di keempat lokasi ditemukan sebanyak enam jenis lamun yang berasal dari dua famili yaitu Hydrocharitaceae dan Cymodoceaceae. Famili Hydrocharitaceae diwakili oleh Enhalus acoroides (Ea), Thalassia hemprichii (Th), Halophila ovalis (Ho), dan Cymodocea rotundata (Cr), sementara famili Cymodoceaceae terdiri dari Syringodium isoetifolium (Si) dan Halodule uninervis (Hu). Jenis paling beragam ditemukan di Lovina dengan rata-rata persentase tutupan 60% dan paling sedikit di Panimbangan dengan rata-rata tutupan 52%. Hasil pembobotan pada komponen jenis lamun, jenis alga, dan persentase tutupan menunjukan bahwa kondisi lamun di Lovina dalam kondisi paling baik dengan jumlah skor 13. Kondisi lamun di Sumberkima dalam kondisi sedang (skor 11), sedangkan di Panimbangan dan Pacung dalam kondisi buruk dengan skor 7. Kondisi kualitas air pada saat dilakukan pengamatan di keempat lokasi penelitian dalam kondisi yang baik untuk mendukung kehidupan lamun. Penelitian lanjutan dengan menambahkan dan mempertimbangkan parameter lingkungan lainnya sebagai komponen untuk menilai kondisi dan status lamun di Bali Utara. Identification of seagrass beds condition in North Bali waters (Sumberkima, Lovina, Panimbangan, and Pacung) was carried out in August and September 2020. This study aims to identify the condition of seagrass beds in North Bali waters based on the number of seagrass species, the percentage of seagrass cover, and the number of algae species. We performed line transects as well as photos or videos to collect data on seagrass and algae. Seagrass ecosystem condition was analyzed by using the scoring and weighting method. Six species originating from two families, Hydrocharitaceae and Cymodoceaceae, have been identified. Hydrocharitaceae family represented by Enhalus acoroides (Ea), Thalassia hemprichii (Th), Halophila ovalis (Ho), and Cymodocea rotundata (Cr), while the Cymodoceaceae consists of Syringodium isoetifolium (Si) and Halodule uninervis (Hu). The most diverse species were found in Lovina with an average percentage cover of 60% and the least is in Panimbangan (52%). The scoring and weighting results showed that the seagrass conditions in Lovina were in the best condition with a total score of 13. The condition of the seagrass in Sumberkima was moderate (score 11), while in Panimbangan and Pacung were in bad condition with a score of 7. The condition of water quality at the time of observation was in good condition to support seagrass life at all research sites. Further research by adding and considering other environmental parameters as a component in assessing the condition and status of seagrass in North Bali.

Effect of Led Light Intensity on Survival Rate and Growth Rate of Cantang Grouper Putu Herdi Putrawan; I Nyoman Dodik Prasetia; Gede Iwan Setiabudi
Advances in Tropical Biodiversity and Environmental Sciences Vol 6 No 2 (2022): ATBES
Publisher : Institute for Research and Community Services Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ATBES.2022.v06.i02.p01

This study aimed to examine the effect of the intensity of LED light on the survival rate of Cantang grouper larva in indoor cultivation, and the intensity of LED light on the growth rate of Cantang grouper larva in indoor cultivation. This research is an experimental research type. The subjects in this study were Cantang grouper larva in Penyabangan Village, Buleleng Regency using microscopic observations which were analyzed descriptively and recorded in the table. The data analysis technique used in this study uses SPSS Windows version 21 by using the normality test, the Kruskal walls test and the post hoc test. The results of this study indicate that the intensity of LED light affects the survival rate, this can be seen from Pool 3 filled with 2,000 LUV LEDs which has the highest SR level, which is 5%. The intensity of the LED light affects the growth of the larva studied by using the parameters of length and the percentage of feed consumed in the larva's stomach. This is indicated by the length and the highest percentage of fish larva belly in pond 3 which was treated with 2,000 LUX LED.

Preliminary study of algasidal activities of the episymbiont bacterial consortium from Enhalus acoroides Gede Iwan Setiabudi; Dietriech G. Bengen; Ocky Karna Radjasa; Hefni Effendi
Advances in Tropical Biodiversity and Environmental Sciences Vol 2 No 2 (2018): ATBES
Publisher : Institute for Research and Community Services Udayana University

Seagrass symbiotic bacteria have various functions, one of which is as algaside. There are 2 types of symbionts namely endosymbiont and episymbiont. This study aims to test the initial activity of algaside episymbiont Enhalus acoroides on diatome and dinoflagellate group plankton. The method used for testing is Mixed Algal-bacterial cultures. On media that has been overgrown with algae will be inoculated with episymbiont bacterial consortium E. acoroides. The results of the bacterial consortium research have not shown significant algaside activity. But, on Nitschia sp. showed significant algaside activity. This mean specific activity in the compound or mechanism used as algaside.

First Molecular Identification of Sunfish in North Bali Water I Made Oka Riawan; Gede Iwan Setiabudi; I Made Merdana; I Putu Mangku Mariasa; Kadek Teguh Wirasastra
Advances in Tropical Biodiversity and Environmental Sciences Vol 3 No 1 (2019): ATBES
Publisher : Institute for Research and Community Services Udayana University

Stranded Sunfish in North Bali with full body we collect to do molecular identification. Samples were amplified at the d-loop locus (control region) using the PCR (Polymerase Chain Reaction) method. Primers used in PCR are H16498 as primary front (forward) and L15812 as reverse primer. Similarity value of 95% after alignment with Mola ramsayi (accession number accession AY940824) on GenBank, and the gaps of the nucleotide just 1%. The stranded sunfish identified using partial sequence mtDNA is the same species as the species Mola ramsayi.

Keanekaragaman dan Kelimpahan Nudibranch di Pantai Penimbangan Buleleng Bali Jasmine Masyitha Amelia; I Nyoman Dodik Prasetia; Gede Iwan Setiabudi
Journal of Marine Research Vol 11, No 3 (2022): Journal of Marine Research
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jmr.v11i3.35005

Pantai Penimbangan terletak Desa Baktiseraga, Kecamatan Buleleng merupakan kawasan pusat kota Kabupaten Buleleng, Bali yang memiliki hamparan pasir hitam. Kegiatan konservasi penyu di kawasan ini meningkatkan gairah masyarakat dalam menjaga kelestarian ekosistem terumbu karang. Salah satu biota yang beriteraksi di ekosistem terumbu karang adalah nudibranch. Keberadaan nudibranch di Pantai Penimbangan diharapkan mampu menjadi alternatif potensi wisata yang bisa dikembangkan, sehingga antusiasisme masyarakat untuk menjaga kelestarian ekosistem pesisir akan terus terjaga. Penelitian bertujuan untuk memperkuat data dasar ekologi tentang keanekaragaman dan kelimpahan nudibranch. Penelitian populasi nudibranch dinilai dengan sensus visual mengikuti line intercept transect. Penelitian nudibranch di Pantai Penimbangan menunjukkan bahwa terdapat 12 famili yaitu Chromodorididae, Phyllidiidae, Discodorididae, Aeolidiidae, Elysiidae, Aglajidae, Bornellidae, Facelinidae, Flabellinidae, Hexabranchidae, Limapontiidae, dan Pleurobranchidae, dengan 42 jenis. Kelompok Chromodorididae dan Phyllidiidae adalah kelompok yang umum dijumpai di Perairan Pantai Penimbangan. Kedua kelompok ini memanfaatkan patahan karang yang menjadi subsrat perairan sebagai tempat berlindung. Komposisi substrat sangat menentukan kekayaan nudibranch, kategori substrat yang menentukan keberadaan nudibranch adalah dead coal with alga, sponge, dan hard coral. Tingginya persentase dead coral with alga, dan sponge berbanding lurus dengan keanekaragaman nudibranch, dan hard coral berbanding terbalik dengan keanekaragaman nudibranch. Kriteria indeks keanekaragaman tinggi dengan nilai 2,6199, Indeks keseragaman 0,7055 dan nilai dominansi 0,0342. Tingkat kelimpahan tertinggi pada jenis Hypselodoris tryoni. Penimbangan Beach is located in Baktiseraga Village, Buleleng District, which is the downtown area of Buleleng Regency, Bali which has a stretch of black sand. Turtle conservation activities in this area increase the enthusiasm of the community in preserving the coral reef ecosystem. One of the biota that interacts in the coral reef ecosystem is the nudibranch. The existence of nudibranchs at Penimbangan Beach is expected to be an alternative tourism potential that can be developed, so that public enthusiasm for preserving coastal ecosystems will continue to be maintained. This study aims to strengthen the basic ecological data on the diversity and abundance of nudibranchs. The study of the nudibranch population was assessed by visual census following the line intercept transect. Research on nudibranchs at Penimbangan Beach showed that there were 12 families namely Chromodorididae, Phyllidiidae, Discodorididae, Aeolidiidae, Elysiidae, Aglajidae, Bornellidae, Facelinidae, Flabellinidae, Hexabranchidae, Limapontiidae, and Pleurobranchidae, with 42 species. Chromodorididae and Phyllidiidae groups are common groups found in Penimbangan Beach. Both of these groups take advantage of coral fractures which become the substrate of the waters as a shelter. Substrate composition greatly determines the richness of nudibranchs, the substrate categories that determine the presence of nudibranchs are dead coral with algae, sponges, and hard corals. The high percentage of dead coal with algae, and sponges is directly proportional to nudibranch diversity, and hard coral is inversely proportional to nudibranch diversity. The criteria for the high diversity index are 2.6199, the uniformity index is 0.7055 and the dominance value is 0.0342. The highest abundance level was in Hypselodoris tryoni.

Plankton Biodiversity in The Floating Net Cage I Gede Wahyu Permana; Gede Iwan Setiabudi; Gressty Sari Br Sitepu
Advances in Tropical Biodiversity and Environmental Sciences Vol 6 No 2 (2022): ATBES
Publisher : Institute for Research and Community Services Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ATBES.2022.v06.i02.p05

Lake Batur has the potential to be a fishery resource that has not been explored and even very little attention from the community and the government so that this resource can be developed optimally. The current condition of lake Batur waters tends to change either naturally or annually or changes due to community activities around the lake. This study aims to determine the feasibility of lake Batur waters as a fish farming business field for the freshwater floating net cage system. Water samples to be tested for water quality and plankton were obtained directly at Lake Batur. The results of plankton abundance at each station were received, at station I (2.070 ind/l), station II (1.477 ind/l), station III (6.975 ind/l), and station IV (2.617 ind/l), station V (2.902 ind/l). The parameters observed are water quality parameters in the form of brightness, temperature, pH, DO, Nitrates, Nitrites, and plankton abundance in Lake Batur Kintamani, Bangli. The results of research on the quality parameters at each station showed different values. The brightness parameters at 5 stations have values in the range of 246-480 cm, temperatures 26-28.3 °C, pH 7.5-8.3, DO 7.1-8.3 mg/L, Nitrates 0.36-0.66 ppm, and Nitrites 0.02-0.04. brightness.

Title

Found 20 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 20 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 20 Documents
Search