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All Journal METAMORFOSA Journal of Biological Sciences Journal of Marine and Aquatic Sciences Jurnal Biologi Udayana Bumi Lestari Ecotrophic, Journal of Environmental Science The Journal of Experimental Life Sciences (JELS) SIMBIOSIS Jurnal Ilmiah Pangabdhi Current Trends in Aquatic Science Samakia: Jurnal Ilmu Perikanan Balobe: Jurnal Pengabdian Masyarakat Jurnal Perikanan

Alfi Hermawati Waskita Sari

Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan Dan Perikanan, Universitas Udayana

Author-ID : 372429

Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Immunology & microbiology Medicine & Pharmacology Neuroscience Social Sciences Other

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Struktur Komunitas Fitoplankton di Area Keramba Jaring Apung Danau Buyan Kecamatan Sukasada, Buleleng, Propinsi Bali Putu Roni Graha Persada; I Wayan Restu; Alfi Hermawati Waskita Sari
Metamorfosa: Journal of Biological Sciences Vol 5 No 2 (2018)
Publisher : Prodi Magister Ilmu Biologi, Fakultas MIPA, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/metamorfosa.2018.v05.i02.p03

Danau Buyan merupakan sumberdaya alam akuatik yang mempunyai nilai yang sangat penting. Pemanfaatan danau buyan diantaranya adalah kegiatan budidaya keramba jaring apung yang berpotensi memberikan masukan nutrien kondisi ini dapat mempengaruhi kualitas air yang kemudian akan berpengaruh pada fitoplankton. Tujuan penelitian ini adalah untuk mengetahui struktur komunitas fitoplankton dan kualitas perairan di area keramba jaring apung Danau Buyan, Kecamatan Sukasada, Propinsi Bali. Penelitian ini dilaksanakan pada bulan Januari-Maret 2016 di area keramba jaring apung Danau Buyan, Kecamatan Sukasada, Kabupaten Buleleng, Propinsi Bali. Penelitian ini menggunakan metode sistematic sampling. Lokasi stasiun pengamatan total berjumlah 8 stasiun, stasiun 1-7 terletak dekat dengan area budidaya keramba jaring apung sedangkan 1 stasiun kontrol berada jauh dari area keramba jaring apung. Kegiatan pengambilan sampel dilakukan 3 kali dengan selang waktu 3 minggu. Hasil penelitian menunjukkan terdapat 9 genus fitoplankton yang terdiri dari 24 spesies. Hasil kelimpahan fitoplankton rata-rata yaitu 1454 sel/l sehingga masuk dalam kategori perairan oligotropik, Indeks keanekaragaman 07647-1,8352, Indeks keseragaman rata-rata-rata 3937. Nilai indeks dominansi 0,4225. Nilai parameter kualitas air yang didapatkan antara lain yaitu nilai suhu sebesar 23,54-24,94oC, Nilai Kecerahan yaitu 66,41-251.06, Nilai kekeruhan yaitu sebesar 2,10-6,39 NTU, Nilai pH yaitu sebesar 7,56-8,93, Nilai oksigen terlarut (DO) yaitu sebesar 4,10-5,44 mg/l, Nilai nitrat yaitu sebesar 0,39-0,99 mg/l dan nilai fosfat yaitu sebesar 0,13-0,45 mg/l. Secara keseluruhan hanya parameter oksigen terlarut (DO) yang kurang mendukung kehidupan fitoplankton.

Inventarisasi dan Komposisi Jenis Ektoparasit Ikan Nila (Oreochromis niloticus) Sebagai Biomonitoring Perairan Sungai Tukad Badung, Bali Alfi Hermawati Waskita Sari; Rani Ekawaty
Journal of Marine and Aquatic Sciences Vol 5 No 1 (2019)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Environmental stressors which coming from anthropogenic wastes that indirectly enters into the river waters also affect the biota's health in the ecosystem such as the Tilapia Fish (Oreochromis niloticus) which is found in the waters of the Tukad Badung River, Bali. The presence of parasites in fish is also associated with changes of the water quality. The objectives of this study is to provide data and information on the inventory and composition of the parasite species in Tilapia fish (Oreochromis niloticus) as the aquatic health biomonitoring of in the effort of sustainable river ecosystem management. The results of ectoparasit observation of the Tilapia which obtained from five stations in Tukad Badung waters found 6 types of ectoparasites, which are Trichodina sp. Dactylogyrus sp. Gyrodactylus sp., Chilodonella sp., Vorticella sp. and Lernea sp. The composition of the ectoparasite species of nila tilapia fish (Oreochromis niloticus) obtained from all five research stations in Tukad Badung waters by percentage of presence of ectoparasite Trichodina sp. are 70%, Dactylogyrus sp. 31%, Gyrodactylus sp. 4% and Chilodonella sp., Vorticella sp. and Lernea sp. 1%.

Kondisi dan Keanekaragaman Jenis Lamun di Perairan Pulau Serangan, Provinsi Bali Luh Gede Manik Radzena Martha; Pande Gde Sasmita Julyantoro; Alfi Hermawati Waskita Sari
Journal of Marine and Aquatic Sciences Vol 5 No 1 (2019)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Serangan Island is one of the tourism destinations in Bali which is administratively belong to the municipality of Denpasar. Tourism development near with the segrass habitat cause the segrass ecosystem being degraded in the waters of Serangan Island. This study was aimed to determine the diversity and conditions of seagrass species which were observed from the density and percentage of seagrass coverage and to examine the effect of water quality on the percentage of seagrass coverage. This research was conducted from February to March 2017 on Serangan Island using quantitative descriptive method. Sampling was conducted at three stations by taking data and samples of seagrass, measuring water quality (temperature, salinity, pH, turbidity, substrate observation) and analyze of nitrates and phosphates content. Seven types of seagrass species were found i.e. Enhalus acoroides, Thalassia hemprichii, Cymodocea rotundata, Halophila ovalis, Halodule pinifolia, Syringodium isoetifolium, and Thalassodendron ciliatum. The study showed that the diversity index value was in the medium category. The density of seagrass was classified as very tight (condition scale of 5). The highest density was found on Cymodocea rotundata spesies at station I about 777 ind/m2. The highest percentage of seagrass coverage (79,55%) was found in station I which classified as good condition, while station II and station III were classified as damaged condition with value 13.65% and 20,79% respectively. Finally, the water quality parameters have relatively low effect to seagrass coverage percentage.

Dekomposisi bahan organik pada sedimen di Tukad Mati dan Tukad Badung, Bali Ima Yudha Perwira; Rani Ekawaty; Alfi Hermawati Waskita Sari; Devi Ulinuha
Journal of Marine and Aquatic Sciences Vol 5 No 2 (2019)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

The sediment properties of Mati and Badung River, Bali were observed in this study. This study was aimed to know the relation between carbon, nitrogen and total bacterial number in the sediment of those rivers. This study was carried out in Mati and Badung River located in Southern part of Bali, Indonesia. Total carbon (TC), total nitrogen (TN), and total bacterial number of the sediment were observed in this study. Slow stirring method was used to estimate the total bacterial number in sediment, based on their environmental DNA intensity after agarose gel electrophoresis. TC of sediment was analyzed by using total carbon analyzer after combustion at 900oC, while TN was analyzed by using indophenol blue method after digested using Kjeldahl at 420oC for 1.5 hours. The result showed that TC of sediment in the Mati and Badung River were 6,100 and 7,000 mg/kg, respectively. TN of sediment in the Mati and Badung River were 380 and 440 mg/kg, respectively. The pH and electrical conductivity (EC) of sediment in the Mati River were 6,88 dan 0,10 µs/cm, while in the Badung River were 6,80 dan 0,11 µs/cm. Total bacterial number in the Mati river was lower (4.8 × 108 cell /g) than that in the Badung river (3.8 × 108 cell/g). The high value of R2 between total bacterial and TC (0.91), and between total bacterial number and TN (0.83), indicating the high influence of bacteria on the decomposition of organic materials in the sediment.

Inventarisasi Keanekaragaman dan Komposisi Jenis Echinodermata di Perairan Pantai Segara Samuh, Bali I Wayan Darya Kartika; Alfi Hermawati Waskita Sari
Journal of Marine and Aquatic Sciences Vol 7 No 1 (2021)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/jmas.2021.v07.i01.p08

Along with the development of tourism and the well-managed Nusa Dua area, local communities have the opportunity to be able to develop several beach tourism attractions, one of which is Segara Samuh Beach. One of the aquatic organisms that are generally affected by environmental changes is macrozoobenthos, especially the phylum Echinoderms. Based on this, it is necessary to conduct research on the composition of the species of Echinoderms and their distribution patterns. For this reason, it is necessary to conduct an inventory study of the types of echinoderms that exist in the waters of Segara Samuh Beach. This research will be conducted in the waters of Segara Samuh Beach (8° 47' 13.80'' South Latitude and 115° 13' 42.57'' East Longitude), North Kuta District, Badung Regency, Bali. The preliminary survey was carried out in April and data collection was carried out for 2 periods (May 2019 and August 2019). Sample inventory along with data processing and analysis was carried out at the Fisheries Laboratory, Faculty of Marine Affairs and Fisheries UNUD (Echinoderms sample). The largest species composition at Station I was sea cucumber (50%) and at Station II was dominated by snaking stars (54%). Stations III and IV have relatively the same or similar species composition (Figure 2). Subphylum Echinoidea is the species composition with the highest percentage, which are 78.79% and 80.95%, respectively. Other echinoderms found at these two stations were Asteroidea and Holothuroidea, 15.15% and 6.06%, respectively (Station III) and 14.29% and 4.76% (Station IV). Overall, the composition of the Echinoderm species consists mostly of the subphylum Echinoidea (47%), Ophiuroidea (47%), Asteroidea (7%), Holothuroidea (6%) and a little Crinoidea (1%).

Biomarker Histopatologi Hati Ikan Belanak (Mugil cephalus) Sebagai Peringatan Dini Toksisitas Kromium(Cr) di Muara Tukad Badung, Bali Alfi Hermawati Waskita Sari; Ima Yudha Perwira
Journal of Marine and Aquatic Sciences Vol 5 No 2 (2019)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

The impact from the increased discharge of domestic and industrial waste, as well as other human activities, has had a significant negative impact on the quality of water in the TukadBadung River Estuary, which is a natural habitat for mullets (Mugil cephalus). In seeking to understand the response of aquatic organisms to this environmental change, one important biomarker of environmental stress is the histopathological features of fish liver. The measurement of water quality parameters in TukadBadung Estuary showed a normal range of dissolved oxygen (8.07), pH (7.01) and temperature (28.50C). However, the measurement results for the heavy metals chromium (Cr) in Station I (0.086 mg/L), Station II (0.099 mg/L), and Station III (0.099 mg/L) all exceeded the water quality standard threshold, based on the KepMen Negara LH No. 51 Tahun 2004 standard for seawater quality (seawater biota). The results of the observation of histopathological features of the liver organ of mullets (Mugil cephalus) in the TukadBadung Estuary revealed various physical damage, including signs of haemorrhagic, congestion, vascular degeneration, and focal necrosis.

Profil Hemosit dan Aktifitas Fagositosis Kepiting Bakau (Scylla sp.) yang Terserang Ektoparasit di Ekosistem Mangrove Kuta Selatan, Bali Alfi Hermawati Waskita Sari; Rani Ekawaty
Journal of Marine and Aquatic Sciences Vol 2 No 1 (2016)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Mangrove crab (Scylla sp.) is one of the commodities that live in the mangrove ecosystem and were developed through cultivation, but it encountered many obstacles in its development mainly due to parasitic infection. The purpose of this study is to determine the hemocytes profile and the phagocytic activity of the mud crab (Scylla sp.), in terms of parasitic infection and the water quality of the mangrove ecosystem in South Kuta, Bali. The results of study showed the Haemocyte Total Count (THC) of mangrove crab in the range of 1.8 to 2.57x106 cells/ml and Haemocyte Differential Count (DHC) mud crab shows the percentage of cells hyalinosit 14-32%, 24-38% and the semigranulocytes cells 39-58% of granulocytes cells, phagocytosis percentage of the mud crab (Scylla sp.) are in the range of 53%-66%, while the index of phagocytosis 1.81-2.11. Type ectoparasites found in mangrove crab (Scylla sp.), among others are Vorticella sp., Zoothamnium sp. and Epistylis sp.

Bioassessment dan Kualitas Air Daerah Aliran Sungai Legundi Probolinggo Jawa Timur Meta Apriliawati Sandi; I Wayan Arthana; Alfi Hermawati Waskita Sari
Journal of Marine and Aquatic Sciences Vol 3 No 2 (2017)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Legundi River is one of the six rivers in Probolinggo. Water is used for local community irrigation system of the rice fields. Makrozoobenthos was affected by the physical and chemical factors of the water condition. In order to determine the health of water in the river, it was applied water biological condition assessment technique by using biological parameter (bioassessment). This research used bioassessment with biotilik approach (invertebrate indicator of water quality) and Family Biotic Index (FBI). This research aimed to to find out the composition of biotilik, the water quality based on the physical and chemical factors, and the water status through biotilik indicator in Legundi River. This research was done in Legundi River on January until Pebruary 2017. The method which was used in this research was the direct observation by using purposive sampling to determine the location of the sampling. The result showed that the dominant biotilik composition was Hydropsychidae* (602), Thiaridae (258), and Parathelpusidae (209). The characteristics of the water from the upstream to downstream was as follows, temperature: 26,37 – 27,37 ?C, pH: 6,49 – 7,94, DO: 6,95 – 8,86 mg/l, turbidity: 1,16 – 3,58 NTU, BOD: 6,74 – 9,1 mg/l, and COD: 8,823 – 9,459 mg/l. The analysis of the biotilik index showed that the water was slightly clean with moderate pollution; and the analysis by using the Family Biotic Index showed that the water was not polluted.

Histopatologi Insang Ikan Bandeng (Chanos chanos) yang tertangkap di Muara Tukad Badung, Bali Alfi Hermawati Waskita Sari
Journal of Marine and Aquatic Sciences Vol 5 No 2 (2019)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

This study demonstrates the usefulness as a bio-indicator of milkfish (Chanos chanos), which are often caught in the TukadBadung Estuary Bali. Information regarding the histopathology gill organs of milkfish provides important early information for use in biomonitoring efforts to make ecosystems sustainable. The measurement results of heavy-metal Leads at Station III (0,0101 mg/L) exceeded the water quality standard threshold based on the KepMen Negara LH No. 51 Tahun 2004 standard for seawater quality (seawater biota). The results of the observation of the histopathological features of milkfish gills caught in Muara Tukad Badung revealed oedema, hyperplasia, hypertrophy fusion of the gill lamellae, Lifting ephitelium and telangiectasis.

Keterkaitan Komunitas Makrozoobentos dengan Kualitas Air dan Substrat di Ekosistem Mangrove Taman Hutan Raya Ngurah Rai Bali Maria Ulfa; Pande Gde Sasmita Julyantoro; Alfi Hermawati Waskita Sari
Journal of Marine and Aquatic Sciences Vol 4 No 2 (2018)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Ngurah Rai forest park located in two districts of Badung and Denpasar city which is as the main centre of anthropogenic activities. There is an estuary in this area that used as run off of those activities. This area faces directly into the ocean. Wastes from anthropogenic activities indirectly affected biotic and abiotic components such as water quality, substrate, and macrozoobenthos. This research aims to discover the community of macrozoobenthos and its relation to the water quality and substrate in Ngurah Rai forest park. This research used purposive sampling metode to determine of stations. Sampling was conducted at four different stations covering macrozoobenthos samples, measuring water quality (salinity, pH, DO, temperature, turbidity) and substrate samples. A total of 19 types of macrozoobenthos was found out of 5 classes, i.e. Polychaeta, Oligochaeta, Bivalves, Gastropods, and Crustaceans. The diversity index was categorized as low to moderate. The uniformity index value of community was categorized as balanced. The dominant index on the fourth station states that the level of dominance was categorized as low. Water quality parameter measurement results were still within normal limits, but the turbidity value of the first station exceeds the normal limits due to high content of organic matter. The substrate type at first station to fourth station were sandy clay loam, sandy loam, clay loam, and sandy loam respectively. Temperature, salinity, turbidity were the parameters that greatly affected the abundance of macrozoobenthos, while substrates such as sand and clay have a major influence on the abundance of macrozoobenthos.

Co-Authors Agung Pramana Warih Mahendra Ahnaf, Hariadi Bryan Baginta Gurusinga Devi Ulinuha Dhira Alfiah R. Pettalolo Dresti Ngurah Dwi Saputra Endang Rustiasih Endang Wulandari Suryaningtyas Heru Pramono I Wayan Arthana I Wayan Gde Samping Gargitha I Wayan Restu Ilham Misbakudin Al zamzami Ilham Muttaqin Ima Yudha Perwira Ima Yudha Perwira Indah Eka Yulianti Indri, Ristrianas Kartika, I Wayan Darya Luh Gede Manik Radzena Martha M Reza Mei Budi Dharmawan Maria Ulfa Maulinna Kusumo Wardhani, Maulinna Kusumo Meta Apriliawati Sandi Mohammad Rizqi Ni Gusti Made Yuliari Ni Luh Watiniasih ni luh wayan hanny prabandari Ni Putu Suci Mardani Nuning Vita Hidayati Nurul Hidayati Pande Gde Sasmita Julyantoro Putu Bagaskara Putu Roni Graha Persada Rachman, Herlambang Aulia Rani Ekawaty Sapto Andriyono Suprabadevi Ayumayasari Saraswati Suryaningtyas, Endang Wulandari Veryl Hasan Wisudyawati, Dita Yenny Risjani Yosua Febriyanto Yuli Andriani Situngkir Zainul Hidayah

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