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All Journal Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati Jurnal Perikanan Universitas Gadjah Mada Bawal : Widya Riset Perikanan Tangkap TRITON : Jurnal Manajemen Sumberdaya Perairan PAPALELE : Jurnal Penelitian Sosial Ekonomi Perikanan dan Kelautan
Pertami, Nyoman Dati
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Economics, Econometrics & Finance Environmental Science Immunology & microbiology

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Epifauna pada Ekosistem Mangrove di Kawasan Taman Hutan Raya Ngurah Rai, Bali  Girsang, Lestari Meliana; Pertami, Nyoman Dati; Ernawati, Ni Made
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 8, No 2 (2023): June 2023
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v8i2.6333

Abstract

Epifauna merupakan makrozoobentos yang hidup di permukaan sedimen perairan atau menempel pada berbagai substrat perairan maupun pada organisme lain. Salah satu kawasan perairan yang sering dijadikan habitat oleh epifauna adalah ekosistem mangrove. Penelitian ini bertujuan untuk mengetahui jenis dan kelimpahan epifauna, jenis dan kerapatan mangrove, serta kondisi lingkungan (air dan substrat) pada ekosistem mangrove di Tahura Ngurah Rai, Bali. Penelitian ini dilakukan menggunakan metode Purposive Random Sampling dengan transek berpetak. Jenis epifauna yang ditemukan di Tahura Ngurah Rai, Bali terdiri dari 15 jenis (Terebralia sulcata, Nerita planospira, Cerithidea quoyii, Telescopium tellescopium, Littoraria lutea, Littoraria scabra, Littoraria carinifera, Littoraria pallescens, Pila ampullaceal, Nerita melanotragus, Cassidula nucleus, Austruca triangularis, Littorina undulate, Chricoreus capucinus, dan Pirenella alata) dengan kelimpahan berkisar antara 0,06-14,10 ind/m2 dan kelimpahan relatif berkisar antara 0% – 53%. Terdapat tujuh jenis mangrove yang ditemukan yaitu Rhizophora mucronata, Rhizophora apiculata, Bruguiera gymnorrhiza, Sonneratia alba, Xylocarpus moluccensis, Xylocarpus granatum, dan Lumnitzera racemose dengan kerapatan berkisar 200 – 3267 tegakan/ha. Lingkungan pada daerah penelitian menunjukan kondisi normal dan mendukung bagi pertumbuhan epifauna dan mangrove di Tahura Ngurah Rai Rai, Bali. 
HABITUS COMPARASION, GROWTH PATTERN AND CONDITION OF CONVICT CICHLID (Amatitlania nigrofasciata GUNTHER, 1986) IN THREE LAKES ECOSYSTEMS IN BALI Parawangsa, I Nyoman Yoga; Tampubolon, Prawira Atmaja; Saputra, Dewa Gde Tribodhi; Pertami, Nyoman Dati
BAWAL Widya Riset Perikanan Tangkap Vol 15, No 2 (2023): (AGUSTUS) 2023
Publisher : Politeknik Kelautan dan Perikanan Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/bawal.15.2.2023.66-75

Abstract

Convict cichlid (Amatitlania nigrofasciata) belonging to the Cichilidae family has inhabited in Tamblingan Lake, Buyan Lake and Beratan Lake. The existence of this fish species is suspected due to accidental introduction activities. The aims of this study ware to reveal differences in habitus, growth patterns and conditions of convict cichlid in the three lakes on the island of Bali. Samples of convict cichlid were taken by bubu traps, that placed in the littoral zone of the lake. 19 morphometric characters were measured using a digital caliper, then each fish sample was weighed. The growth pattern and condition of convict cichlid are known by using the equation of the length-weight relationship and the condition factor. There were 888 individuals of convict cichlid caught during this study, consisted of 385 fish from Tamblingan Lake, 371 fish from Buyan Lake, and 132 fish from Beratan Lake. Moreover, 108 fish consisting of 36 fish from each lake were further analyzed by measuring 17 additional morphometric characters. The results of measuring the morphometric characters of the observed convict cichlid had different variations for the characters of head length and predorsal length. There was diversity for several morphometric characters of the convict cichlid in Buyan Lake which are a collaboration of characters between the convict cichlid in Tamblingan Lake and in Beratan Lake, namely on the basic characteristics of the anal fin, dorsal fin base, body length, postorbital length, and tail height. The growth pattern of this species in the three lakes was negative allometric and the condition of this fish species was in good condition with the average value of condition factor ranging from 0.95–1.05.
Food and Feeding Habits of Osteochilus vittatus Valenciennes, 1842 and Barbodes binotatus Valenciennes, 1842, in Tamblingan Lake, Bali Sathyananta, Kadek Prayuda; Pertami, Nyoman Dati; Parawangsa, I Nyoman Yoga; Surya Pramana, Made Arya
Jurnal Perikanan Universitas Gadjah Mada Vol 26, No 2 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.97116

Abstract

Tamblingan Lake is the smallest lake in Bali and is inhabited by various species of fish, which are from the Cyprinidae family, namely bonylip barb and spotted barb. Information regarding the food and feeding habits of bonylip barb and spotted barb fish in Tamblingan Lake is unavailable. This study aims to determine and analyze the food and feeding habits of bonylip barb and spotted barb fish in Tamblingan Lake. Fish sampling was conducted from January to June 2019 in Tamblingan Lake using modified gill nets with a net size of 0.5, 1.0, 1.5, 2.0, 2.5, and 3.0 cm. Fishing was carried out at five stations with water characteristics representing the condition of Tamblingan Lake. Bonylip barb fish obtained during the study comprised 216 individuals, while the Spotted barb had 180 individuals. The average value of the relative intestinal length of bonylip barb fish ranged from 4.34 to 5.53, while that of the spotted barb fish was 0.89 to 1.30. The average value of the gastric fullness index of film fish ranges from 1.34 to 4.77, while the spotted barb is 0.32 to 0.42. The total IRI value of bonylip barb fish food in Tamblingan Lake is 924.32, while the spotted barb is 1,232.62, with the highest IRI value in both species coming from plankton. Bonylip barb and spotted barb in Tamblingan Lake developed a generalist feeding strategy with plankton food groups (planktivorous). Information related to these fishes can be used to formulate fish resource management in Tamblingan Lake.
DAYA DUKUNG DAN INDEKS KESESUAIAN WISATA DI PANTAI JERMAN DAN PANTAI SEGARA, KECAMATAN KUTA, KABUPATEN BADUNG, PROVINSI BALI Sitinjak, Sonia Sarah; Restu, I Wayan; Pertami, Nyoman Dati
PAPALELE (Jurnal Penelitian Sosial Ekonomi Perikanan dan Kelautan) Vol 9 No 1 (2025): PAPALELE: Jurnal Penelitian Sosial Ekonomi Perikanan dan Kelautan
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/papalele.2025.9.1.83

Abstract

Segara Beach and German Beach are one of the beaches located in Kuta District, Badung Regency, Bali. Segara Beach and German Beach have tourist destinations such as swimming, sunbathing, seeing the scenery, and sitting back, so that local and foreign tourists can enjoy the tourist attractions at Segara Beach and German Beach. Tourism development must be based on the principle of sustainable development (Sustainable Development Goals). Tourism development has a direct impact on the environment and can reduce the sustainability of existing natural resources, therefore it is necessary to know the carrying capacity of the tourism area (DDK) and the tourism suitability index (IKW) in order for further development to be very important based on the availability of data or information about carrying capacity and suitability index and evaluation of the potential conditions of tourist attractions at Segara Beach and German Beach, so it is very urgent to do. Data collection was carried out in March-April 2024 using quantitative and qualitative descriptive methods. The data analysis method uses carrying capacity analysis and tourism suitability index by calculating the type of beach, basic water material, beach width, water depth, water clarity, current speed, beach slope, land cover, dangerous biota, and fresh water availability. Based on the results of the tourism suitability index analysis, the results obtained at stations 1, 2, and 3 were 2.9, which is included in the very suitable category with a carrying capacity for the swimming category of 980 people/day, the viewing category of 6,971 people/day, the sitting and relaxing category of 5,346 people/day, and the sunbathing category of 4,386 people/day.
KEBERAGAMAN JENIS MANGROVE DAN IKTIODIVERSITAS SUMBERDAYA IKAN DI KAWASAN PERAIRAN TELUK BENOA, BALI Sagala, Desima Helfiana; Pertami, Nyoman Dati; Ulinuha, Devi
TRITON: Jurnal Manajemen Sumberdaya Perairan Vol 21 No 1 (2025): TRITON: Jurnal Manajemen Sumberdaya Perairan
Publisher : Departement of Aquatic Resources Management, Fisheries and Marine Science Faculty, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/TRITONvol21issue1page36-44

Abstract

The function and role of mangroves in Bali's Benoa Bay has been proven to be ecologically and economically beneficial to the environment and society. The mangrove forests in this area have muddy substrates that support the growth of mangroves and mangrove-associated biota. However, ecological pressure due to anthropogenic activities has caused problems that threaten the sustainability of mangrove ecosystems. The purpose of this study was to identify mangrove species, determine the biodiversity captured in the Benoa Bay water area, Bali, and determine environmental parameters as supporting data for aquatic ecological conditions in the Benoa Bay water area, Bali. This research was conducted in the mangrove forest area of Benoa Bay, Bali in September-November 2023. Sampling was done 3 times at 3 locations namely Pulau Penyu, Kedonganan, Kampung Kepiting. Mangrove sampling uses plot sampling method, while for fish resource data using actual fishing method for 3 months with 1 month interval. Data analysis carried out in this study is the analysis of mangrove vegetation including diversity index and ichthyodiversity analysis (fish diversity). For water quality parameters refer to quality standards according to established rules. The results showed that the types of mangroves found were Rhizophora apiculata, Ceriops tagal, Avicennia marina, Bruguiera gymnorrhiza, Bruguiera cylindrica, Sonneratia alba, Rhizophora mucronata, Ceriops decandra. The types of fish resources found consisted of 8 orders, 15 families, 23 species with a total of 226 individuals. The level of diversity of fish resources in the three research locations is classified as moderate. The value of water quality parameters is in the range of quality standards that support the growth of mangroves and biota associated with mangroves. ABSTRAK Fungsi dan peran mangrove di Teluk Benoa Bali telah terbukti secara ekologis dan ekonomis bermanfaat bagi lingkungan dan masyarakat. Hutan mangrove di kawasan ini memiliki substrat berlumpur yang mendukung pertumbuhan mangrove serta biota yang berasosisasi dengan mangrove. Namun, tekanan ekologis akibat aktivitas antropogenik menyebabkan munculnya permasalahan yang mengancam keberlanjutan ekosistem mangrove. Tujuan penelitian ini yaitu mengidentifikasi jenis mangrove, mengetahui iktiodiversitas yang tertangkap di Kawasan perairan Teluk Benoa, Bali, serta mengetahui parameter lingkungan sebagai data dukung kondisi ekologi perairan di kawasan perairan Teluk Benoa, Bali. Penelitian ini dilakukan di kawasan hutan mangrove Teluk Benoa, Bali pada September-November 2023. Pengambilan sampel dilakukan 3 kali pada 3 lokasi yaitu Pulau Penyu, Kedonganan, Kampung Kepiting. Pengambilan sampel mangrove menggunakan metode plot sampling, sedangkan untuk data sumberdaya ikan menggunakan metode actual fishing selama 3 bulan dengan interval 1 bulan. Analisis data yang dilakukan pada penelitian ini yaitu analisis vegetasi mangrove meliputi indeks keanekaragaman dan analisis iktiodiversitas (keanekaragaman ikan). Untuk parameter kualitas air merujuk pada baku mutu sesuai aturan yang ditetapkan. Hasil penelitian menunjukkan jenis mangrove yang ditemukan yaitu Rhizophora apiculata, Ceriops tagal, Avicennia marina, Bruguiera gymnorrhiza, Bruguiera cylindrica, Sonneratia alba, Rhizophora mucronata, Ceriops decandra. Jenis sumberdaya ikan yang ditemukan terdiri atas 8 ordo, 15 famili, 23 spesies dengan total individu 226. Tingkat keanekaragaman sumberdaya ikan pada ketiga lokasi penelitian tergolong sedang. Nilai parameter kualitas air berada pada kisaran baku mutu yang mendukung pertumbuhan mangrove serta biota yang berasosiasi dengan mangrove. Kata Kunci: Mangrove, keberagaman, iktiodiversitas, kualitas air, Teluk Benoa
STRUKTUR KOMUNITAS PLANKTON DI PERAIRAN PULAU PENYU, TANJUNG BENOA, BALI Tarigan, Greatiana E; Pertami, Nyoman Dati; Krisna Dewi, Ayu Putu Wiweka
TRITON: Jurnal Manajemen Sumberdaya Perairan Vol 21 No 1 (2025): TRITON: Jurnal Manajemen Sumberdaya Perairan
Publisher : Departement of Aquatic Resources Management, Fisheries and Marine Science Faculty, Pattimura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/TRITONvol21issue1page67-76

Abstract

Plankton are important organisms for determining the water fertility. The research aims to determine the structure of plankton communities in the waters of Turtle Island, Tanjung Benoa, Bali. Sampling was carried out at 3 stations in June-July 2024. Plankton samples were taken from the water surface by taking 300 liters of seawater and filtered using a plankton net that was equipped with a 100 ml tube. Based on the results of phytoplankton observations, 24 genera were found consisting of 4 classes, namely, Bacillariophyceae (21 genera), Dinophyceae, Chlorophyceae, and Cyanophyceae (1 genus each), and zooplankton as many as 13 genera consisting of 5 classes, namely Maxillopoda (5 genera), Oligotrichea, Globothalamea (3 genera each), Gastropoda, and Appendicularia (1 genus each). The most widely found type of phytoplankton is Synedra and the zooplankton is Naupilus. The value of phytoplankton abundance is 808 cells/l, and the zooplankton abundance was 172 ind/l. Phytoplankton ecological indices include diversity index (average 1.78), uniformity index (average 0.6), and low dominance index (0.23). Zooplankton ecological index values include a diversity index with an average value of 1.59 (medium), a uniformity index with an average value of 0.64 (medium), and a dominance index with an average value of 0.29 (low). The results of measuring water conditions show that the values for temperature, salinity, pH and dissolved oxygen are optimal to support plankton life. Meanwhile, the nitrate and phosphate content does not support plankton life. ABSTRAK Plankton merupakan organisme yang berperan penting dalam menentukan kesuburan suatu perairan. Penelitian bertujuan untuk mengetahui struktur komunitas plankton di Perairan Pulau Penyu, Tanjung Benoa, Bali. Pengambilan sampel dilakukan di 3 stasiun pada Bulan Juni-Juli 2024. Sampel plankton diambil dari permukaan air dengan mengambil 300 liter air laut dan disaring menggunakan plankton net yang sudah dilengkapi dengan tabung yang berukuran 100 ml. Berdasarkan hasil pengamatan fitoplankton ditemukan sebanyak 24 genus yang terdiri dari 4 kelas yaitu, Bacillariophyceae (21 genus), Dinophyceae, Chlorophyceae, dan Cyanophyceae (masing-masing 1 genus), dan zooplankton sebanyak 13 genus yang terdiri dari 5 kelas, yaitu Maxillopoda (5 genus), Oligotrichea, Globothalamea (masing-masing 3 genus), Gastropoda, dan Appendicularia (masing-masing 1 genus). Jenis fitoplankton yang paling banyak ditemukan adalah Synedra dan zooplankton nya adalah Naupilus. Nilai kelimpahan fitoplankton sebesar 808 sel/l, dan kelimpahan zooplankton sebesar 172 ind/l. Indeks ekologi fitoplankton meliputi indeks keanekaragaman (rata-rata 1,78), indeks keseragaman (rata-rata 0,6), dan indeks dominasi rendah (0,23). Nilai indeks ekologi zooplankton meliputi indeks keanekaragaman yang bernilai rata-rata 1,59 (sedang), indeks keseragaman bernilai rata-rata 0,64 (sedang), dan indeks dominasi bernilai rata-rata 0,29 (rendah). Hasil pengukuran kondisi perairan menunjukkan bahwa untuk nilai suhu, salinitas, pH, oksigen terlarut optimal untuk mendukung kehidupan plankton. Sementara, kandungan nitrat dan fosfat belum mendukung kehidupan plankton. Kata Kunci: Plankton, struktur komunitas, kualitas air, Pulau Penyu, Bali
Epifauna pada Ekosistem Mangrove di Kawasan Taman Hutan Raya Ngurah Rai, Bali  Girsang, Lestari Meliana; Pertami, Nyoman Dati; Ernawati, Ni Made
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 8, No 2 (2023): June 2023
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v8i2.6333

Abstract

Epifauna merupakan makrozoobentos yang hidup di permukaan sedimen perairan atau menempel pada berbagai substrat perairan maupun pada organisme lain. Salah satu kawasan perairan yang sering dijadikan habitat oleh epifauna adalah ekosistem mangrove. Penelitian ini bertujuan untuk mengetahui jenis dan kelimpahan epifauna, jenis dan kerapatan mangrove, serta kondisi lingkungan (air dan substrat) pada ekosistem mangrove di Tahura Ngurah Rai, Bali. Penelitian ini dilakukan menggunakan metode Purposive Random Sampling dengan transek berpetak. Jenis epifauna yang ditemukan di Tahura Ngurah Rai, Bali terdiri dari 15 jenis (Terebralia sulcata, Nerita planospira, Cerithidea quoyii, Telescopium tellescopium, Littoraria lutea, Littoraria scabra, Littoraria carinifera, Littoraria pallescens, Pila ampullaceal, Nerita melanotragus, Cassidula nucleus, Austruca triangularis, Littorina undulate, Chricoreus capucinus, dan Pirenella alata) dengan kelimpahan berkisar antara 0,06-14,10 ind/m2 dan kelimpahan relatif berkisar antara 0% – 53%. Terdapat tujuh jenis mangrove yang ditemukan yaitu Rhizophora mucronata, Rhizophora apiculata, Bruguiera gymnorrhiza, Sonneratia alba, Xylocarpus moluccensis, Xylocarpus granatum, dan Lumnitzera racemose dengan kerapatan berkisar 200 – 3267 tegakan/ha. Lingkungan pada daerah penelitian menunjukan kondisi normal dan mendukung bagi pertumbuhan epifauna dan mangrove di Tahura Ngurah Rai Rai, Bali. 
Co-Authors Devi Ulinuha Girsang, Lestari Meliana I Wayan Restu Krisna Dewi, Ayu Putu Wiweka Ni Made Ernawati, Ni Made Parawangsa, I Nyoman Yoga Sagala, Desima Helfiana Saputra, Dewa Gde Tribodhi Sathyananta, Kadek Prayuda Sitinjak, Sonia Sarah Surya Pramana, Made Arya Tampubolon, Prawira Atmaja Tarigan, Greatiana E