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PERTUMBUHAN PERIFITON PADA SUBSRAT TALI RAFIA YANG BERPOTENSI SEBAGAI PAKAN ALAMI DI LINGKUNGAN PENDEDERAN IKAN NILA (Oreochromis niloticus) Bianingrum Bianingrum; Kukuh Nirmala; Mia Setiawati; Yuni Puji Hastuti
Jurnal Riset Akuakultur Vol 15, No 4 (2020): (Desember, 2020)
Publisher : Pusat Riset Perikanan, Badan Riset dan Sumber Daya Manusia Kelautan dan Perikanan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (256.786 KB) | DOI: 10.15578/jra.15.4.2020.237-244

Abstract

Limbah pendederan ikan nila terdapat kelimpahan nutrien yang mampu dimanfaatkan oleh perifiton. Perifiton mampu menjaga kualitas air dan dapat dimanfaatkan sebagai pakan tambahan ikan nila. Substrat yang baik memengaruhi pertumbuhan perifiton. Salah satu jenis substrat yang dapat digunakan adalah tali rafia. Tujuan dari penelitian ini adalah mengevaluasi jarak tali rafia terhadap pertumbuhan perifiton. Penelitian dilakukan secara eksperimental dengan menggunakan rancangan acak lengkap (RAL) dengan perlakuan perbedaan jarak substrat tali rafia 15 cm, 25 cm, dan 35 cm. Berdasarkan hasil penelitian diperoleh nilai tertinggi untuk kelimpahan perifiton pada perlakuan 25 sebesar 10.779.375 sel cm-2, indeks keanekaragaman sebesar 1,90 sel cm-2, dan indeks keseragaman sebesar 0,69 sel cm-2. Perifiton yang teridentifikasi di antaranya kelas Cyanophycea (empat genus), Bacillariophyceae (lima genus), Chlorophyceae (lima genus), Protozoa (tiga genus), dan Rotifera. Substrat dengan jarak 25 cm merupakan jarak optimal dalam pertumbuhan perifiton selama 35 hari pada kolam budidaya. Berdasarkan hasil penelitian ini dapat disimpulkan bahwa substrat tali rafia dengan jarak 25 cm menghasilkan pertumbuhan perifiton terbaik yang berpotensi sebagai pakan alami di lingkungan pendederan ikan nila Oreochromis niloticus.Feed and faecal wastes in the nursery media of nile tilapia Oreochromis niloticus are highly concentrated nutrients that could be utilized by naturally occurring periphyton. Periphyton can absorb the nutrients, maintain the water quality and be used as additional food for the cultured tilapia. Suitable substrate influences the growth of periphyton. One type of substrates that can be used is plastic/polypropylene raffia strings. The aim of this study was to evaluate different distance set up between raffia strings on periphyton growth. The experiment was arranged in a completely randomized design (CRD) consisting of varying distance set up of plastic raffia strings, i.e., 15 cm, 25 cm, and 35 cm as the treatments. The results show that the highest growth value was achieved by periphyton in raffia strings placed at 25 cm apart with a density of 10,779,375 cells cm-2, diversity index of 1.90 cell cm-2, and uniformity index of 0.69 cell cm-2. The periphyton identified included Cyanophycea (four genera), Bacillariophyceae (five genera), Chlorophyceae (five genera), Protozoa (three genera), and Rotifera. This current research recommends that the optimal distance between plastic raffia strings as periphyton substrate should be at 25 cm. Based on this study result, it can be concluded that raffia rope substrate with 25 cm distance produces the best periphyton that is potentially utilized as natural feed in nile tilapia Oreochromis niloticus rearing environment.
EFFECT OF THE USE OF Gracilaria sp. ON WATER QUALITY, PHYSIOLOGICAL AND GROWTH PERFORMANCE OF Holothuria scabra IN CULTURE TANK Yuni Puji Hastuti; Moh. Burhanuddin Mahmud; Yuli Siti Fatma; Ridwan Affandi; Kukuh Nirmala
Indonesian Aquaculture Journal Vol 17, No 1 (2022): (June, 2022)
Publisher : Center for Fisheries Research, Agency for Marine and Fisheries Research and Human Resource

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/iaj.17.1.2022.61-72

Abstract

Sea cucumber Holothuria scabra was reared on a small scale with the addition of seaweed Gracilaria sp. as a phytoremediation agent. This research aimed to determine the effect of Gracilaria sp. on water quality, physiological response, and growth performance of H. scabra. Ten individuals of H. scabra with an initial length of 5 ± 0.09 cm and an initial weight of 7.6 ± 0.2 g were reared in a culture tank (20 cm x 30 cm x 20 cm) with 15 cm of water depth. Gracilaria sp. was floated on the culture tank at three weight levels with three replicates, i.e., low (15 g); medium (30 g); and high seaweed density (45 g), with the control (0 g), during the 30-day rearing period. Results showed no significant difference in water temperature, dissolved oxygen (DO), salinity, and total ammonia nitrogen (TAN) between all treatments except for pH. There were no significant differences in ammonia and nitrite concentrations and significant differences in nitrate concentration and total organic matter (TOM) between all treatments and the control. On day 30, the application of Gracilaria sp. exhibited a lower nitrate concentration than the control. Gracilaria sp. maintained the water quality in the culture tank within a tolerable range for H. scabra. On the physiological response of H. scabra, high seaweed density exhibited the lowest blood cholesterol and glucose levels on day 30 and the highest specific growth rate (SGR) in weight (0.59 ± 0.2%) and length (1.16 ± 0.09%). The survival rate of H. scabra in all treatments reached 100%, suggesting the indoor cultivation system in this experiment did not negatively affect the growth of H. scabra. 
Analisis Kesesuaian Perairan Untuk Pengembangan Tambak Udang Vaname (Litopenaeus vannamei) di Kelurahan Sungai Geniot Kota Dumai Haris luthfi; Kukuh Nirmala; Irzal Effendi; Yuni Puji Hastuti
Jurnal Ilmu-ilmu Perikanan dan Budidaya Perairan Vol 17, No 1 (2022): Jurnal Ilmu-ilmu Perikanan dan Budidaya Perairan
Publisher : University of PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/jipbp.v17i2.8036

Abstract

Kelurahan Sungai Geniot merupakan salah satu Kelurahan di Kecamatan Sungai Sembilan Kota Dumai yang memiliki potensi perikanan budidaya yang besar untuk dikembangkan khususnya udang vaname dengan tradisional dan semi intensif. Tujuan penelitian ini yaitu untuk mengkaji dan menganalisis kesesuaian lahan dan kesesuaian perairan pada pengembangan tambak udang vaname (Litopenaeus vannamei) di Kelurahan Sungai Geniot. Metode penelitian yang digunakan adalah purposive sampling. Analisis data yang digunakan adalah scoring dalam penilaian tingkat kesesuaian perairan untuk budidaya udang vaname, Kemudian penilaian kualitas perairan menggunakan metode matching untuk membandingkan karakteristik fisika, kimia, dan biologi perairan suatu lokasi dengan kriteria kesesuaian yang diinginkan untuk budidaya udang vaname. Hasil penelitian menunjukan kondisi kualitas perairan muara sungai maupun di bibir pantai berada dalam kondisi optimal dan masih sesuai untuk budidaya udang vaname. Status kesesuaian lahan untuk pengembangan tambak udang vaname di Kelurahan Sungai Geniot, Kota Dumai sangat berpotensi untuk kegiatan budidaya udang vaname dan pemanfaatan lahan untuk tambak dapat ditingkatkan dari 110,6 Ha menjadi 627 Ha dengan mengoptimalisasi pemanfaatan lahan yang ada. Kesesuaian lahan di Kelurahan Sungai Geniot dalam kelas sesuai yaitu dengan kisaran 48 – 51 sehingga layak dalam kegiatan pengembangan kawasan tambak udang vaname dan memiliki kontur tanah lempung liat berpasir.
Efektivitas Paparan Spektrum Lampu Led Terhadap Kinerja Pertumbuhan Dan Kualitas Warna Ikan Yellow Phantom (Hyphessobrycon Roseus) Wijianto Wijianto; Kukuh Nirmala; Yuni Puji Hastuti
Jurnal Kelautan, Lingkungan, dan Perikanan Vol 2 No 1 (2021): MANFISH JOURNAL
Publisher : Jurusan Ilmu Kelautan dan Perikanan Politeknik Negeri Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (249.704 KB) | DOI: 10.31573/manfish.v1i03.264

Abstract

Ikan yellow phantom merupakan salah satu ikan hias introduksi yang memiliki warna tubuh kekuningan, sirip ekor berwarna kuning, dan terdapat ciri khas yaitu black spot dibagian sisi kanan dan kiri dibagian belakang insang. Penelitian ini bertujuan untuk mengevaluasi kualitas warna dan pertumbuhan ikan yellow phantom dengan paparan spektrum cahaya berbeda. Ikan yellow phantom berukuran 2,73±0,13 cm dengan rataan bobot ikan yaitu 0,38±0,05 g dipelihara dalam akuarium berukuran 25×25×25 cm selama 21 hari. Pakan yang diberikan yaitu cacing sutera. Pakan diberikan tiga kali sehari secara at satiation. Pemeliharaan dilakukan dengan 5 perlakuan dan 3 ulangan yaitu perlakuan K (kontrol), M (LED merah), H (LED Hijau), P (LED Putih), dan B (LED Biru). Hasil penelitian pada perlakuan LED putih memberikan pengaruh kualitas warna terbaik berdasarkan keragaan warna secara visual sebesar 33,11±0,86% untuk warna hitam dan 37,91±0,76% untuk warna kuning. LED merah memberikan pertumbuhan terbaik dengan pertumbuhan panjang total 0,40±0,09 cm, laju pertumbuhan harian 1,20±0,19%, dan efisiensi pakan sebesar 0,68±0,14%. Kadar glukosa darah berkisar antara 28,33±3,05-51,33±3,21 mg dL-1.
Usul Revisi SK Gubernur Sumut Tentang Perikanan Keramba Jaring Apung di Danau Toba Sebagai Solusi Konflik Sosial Hutagaol, Manuntun Parulian; Tanjung, Tanjung; Nirmala , Kukuh; Pujihastuti, Yuni
Policy Brief Pertanian, Kelautan, dan Biosains Tropika Vol 4 No 3 (2022): Policy Brief Pertanian, Kelautan dan Biosains Tropika
Publisher : Direktorat Kajian Strategis dan Reputasi Akademik IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agro-maritim.0403.290-295

Abstract

Pemerintah telah menetapkan Danau Toba (DT) sebagai tujuan wisata internasional , namun pengembangannya menghadapi banyak kendala, seperti kondisi air DT yang tercemar. Salah satu faktor penyebabnya adalah usaha perikanan keramba jaring apung ( KJAKJA), sehingga Pemerintah Provinsi Sumatera Utara menetapkan daya dukung DT untuk perikanan KJA sebesar 10.000 ton per tahun yang jauh lebih kecil dari rata rata-rata produksi yang dihasilkan nelayan lokal. Hal ini telah memicu t erjadinya konflik sosial. Untuk menemukan solusi ini maka dilakukan penelitian dan hasilnya menunjukkan kualitas air DT Status Mesotropik menuju Eutropik dan daya dukungnya sekitar 60.000 ton per tahun. Berdasarkan hasil tersebut, maka perlu dilakukan rev isi SK Gubernur Sumatera Utara tersebut menjadi 60.000 ton per tahun.
Status kualitas air untuk penilaian lingkungan sekitar tambak ekstensif di Balikpapan, Kalimantan Timur Melati, Aulia Firda; Supriyono, Eddy; Hastuti, Yuni Puji; Nirmala, Kukuh
Sains Akuakultur Tropis : Indonesian Journal of Tropical Aquaculture Vol 8, No 1 (2024): SAT edisi Maret
Publisher : Departemen Akuakultur FPIK UNDIP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/sat.v8i1.22167

Abstract

The estuary of Salok Api River in Balikpapan City is geographically located right across the Makassar Strait which is a strategic area supporting the economy of the surrounding city. The aquatic environment in any watershed acts as a carrier of various pollutants and affects the water quality in the estuarine area. The main objective of this study is to assess and identify pollutants that flow into the water environment around extensive ponds in Balikpapan City for aquaculture activities. The STORET method was used in this study to determine the water quality status. Water quality data were collected at six different locations around extensive ponds in Balikpapan City in February - March of 2023. A total of 13 water quality parameters (brightness, temperature, TDS, EC, salinity, pH, DO, ammonia, nitrite, nitrate, phosphate, BOD, and COD) were analyzed at six sites to assess the STORET index at each site. The average STORET index at the six sites was (-32, -26, -26, -26, -26, and -38). The results showed that four sites were classified as moderately polluted and the other two sites were classified as heavily polluted. The STORET index at each location is high and the implication is that the area has moderate to poor water quality status due to several parameters such as EC, salinity, pH, DO, ammonia, phosphate, and COD.
Temporal Dynamics of Phytoplankton in Retention Pond as a Water Source for Striped Catfish (Pangasianodon hypophthalmus) Farming Dhuha, Orbita Roiyan; Hastuti, Yuni Puji; Malau, Albert Gamot
Buletin Jalanidhitah Sarva Jivitam Vol 6, No 1 (2024): Maret 2024
Publisher : POLITEKNIK AHLI USAHA PERIKANAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/bjsj.v6i1.13731

Abstract

This comprehensive study investigates the temporal dynamics and ecological aspects of phytoplankton communities in water reservoirs utilized for Pangasius cultivation. Over a six-week observation period, 25 phytoplankton species, including Bacillariophyceae, Chlorophyceae, Cyanophyceae, Euglenophyceae, and Cryptophyceae, were identified. Chlorophyceae displayed the highest species richness, emphasizing the dominance of this group, particularly Chlorella, which remained stable throughout weekly observations. Other taxa, such as Euglenophyceae, exhibited delayed increases in density. The study revealed two crucial groups in the water reservoir: the first, composed of Actinastrum sp., Closterium sp., Staurastrum sp. (Chlorophyceae), Navicula sp., Pleurosigma sp., Schroedaria sp., Surirella sp. (Bacillariophyceae), and the second, more diverse group consisting of Nitzschia sp. (Bacillariophyceae), Cryptomonas sp. (Cryptophyceae), Trachelomonas sp. (Euglenophyceae), Anabaena sp., Merismopedia sp., Phormidium sp. (Cyanophyceae), Ankistrodesmus sp., Chlorella sp., and Crucigenia sp. (Chlorophyceae). Chlorella was consistently present which was observed to interact with various species, fostering a balanced environment for growth and reproduction within its family and across others based on network analysis. Contradictory dynamics emerge in the initial weeks, where the highest species richness (N = 19 species) coincides with a high dominance index (1/D = 0.54). Conversely, the peak diversity index (H’ = 2.04) occurs during the second observation, aligning with a comparable evenness index (J = 0.89). The saprobic index indicates a shift in pollution levels from β-mesosaprobic to α/β-mesosaprobic between the initial and final weeks of observation. Simultaneously, trophic-saprobic index alterations signify an environmental quality transition from polysaprobic to oligosaprobic. This presents contradictory trends, where, based on species richness, the environment is ecologically classified as polluted. However, considering the contribution of non-indicator groups in the formula, the pond conditions shift towards nutrient impoverishment, suggesting potential suitability for aquaculture practices.
PEMETAAN DISTRIBUSI FITOPLANKTON DI PERAIRAN BOMO BANYUWANGI DAN TAMBAK SEKITAR MENGGUNAKAN SISTEM INFORMASI GEOGRAFIS (SIG) Pertiwi, Setyo; Kurniawan, Ahmad Rahardi; Hastuti, Yuni Puji
Jurnal Harpodon Borneo VOLUME 16 NO.1 APRIL 2023
Publisher : Fakultas Perikanan Dan Ilmu Kelautan Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/harpodon.v16i1.4053

Abstract

Fitoplankton merupakan parameter biologi yang dapat berpengaruh terhadap keseimbangan perairan, terutama pada aktivitas agromaritim di sekitarnya, termasuk aktivitas tambak budidaya. Penelitian ini bertujuan untuk melakukan pemetaan distribusi fitoplankton di perairan Bomo dan di tambak budidaya udang sekitar perairan. Data dikumpulkan melalui foto udara menggunakan drone dan pengambilan sampel in-situ. Sampel diambil dari tiga stasiun lokasi di sepanjang perairan pantai Bomo (di perairan pantai Bomo, di tandon budidaya, dan kolam budidaya). Pada masing-masing stasiun dilakukan pengulangan di 3 substasiun berjarak 500 m setiap stasiunnya secara horizontal. Data dianalisis secara deskriptif maupun kuantitatif berdasarkan variabel-variabel penelitian. Data sebaran fitoplankton juga didukung dengan interpolasi keadaan klorofil a di perairan dengan menggunakan GIS (Geographical Information System). Hasil penelitian menunjukkan adanya distribusi plankton yang cukup signifikan, di mana dominansi fitoplankton di tambak lebih tinggi dibandingkan di air laut dan tandon. Hal ini juga didukung dengan data klorofil-a, di mana klorofil-a di tambak lebih tinggi dibandingkan di air laut dan tandon.
Application of calcium carbonate (CaCo3) at different time intervals on the growth of freshwater lobster (Cherax quadricarinatus) Hastuti, Yuni Puji; Nurussalam, Wildan; Supriyono, Eddy; N Hutomo; Lesmana, Dudi
JURNAL MINA SAINS Vol. 10 No. 1 (2024): Jurnal Mina Sains
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/jmss.v10i1.10567

Abstract

Freshwater lobsters are one of the crustacean commodities that have started to be developed through cultivation. Besides having high nutritional value, freshwater lobsters have a stable sales value or price throughout the year. Freshwater lobster is a crustacean commodity that is not easily stressed or easily attacked by disease. The availability of calcium is essential for lobster growth, especially the formation of its shell. This research aims to determine the effectiveness of adding calcium carbonate at different time intervals by adding 150 mg/L CaCO3 lime. The study was conducted from June to July 2020 at the Aquaculture Environmental Laboratory, Bogor Agricultural Institute. The research used a Completely Randomized Design (CRD) with five treatments and three replications. The treatment used was K+ and K-, and the time interval for adding CaCO3 was once every five days, once every ten days, and once every 15 days. The aquarium measures 100 x 50 x 51 cm with a water height of 21 cm. The lobster used measures 1.5 cm. The research results after statistical testing showed that aquarium A1 (addition of CaCO3 every five days) experienced an increase in length of 0.67 cm. Weight of 0.67 g, B1 (addition of CaCO3 every ten days) experienced an increase in length of 0.87 cm and weight of 0.78 g, C1 (addition of CaCO3 every 15 days) experienced an increase in length of 0.97 cm and weight of 0.98 g, K+1 experienced an increase in length of 1.05 cm and weight of 1.06 gr, K-1 experienced an increase in length of 0.46 cm and weight of 0.45 g.
Monitoring the water quality of Belawan Sea for rearing asian seabass Lates calcarifer in a floating net cage system Iman Sari Lubis, Vina; Nirmala, Kukuh; Supriyono, Eddy; Hastuti, Yuni Puji
Jurnal Akuakultur Indonesia Vol. 23 No. 2 (2024): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19027/jai.23.2.269-280

Abstract

Belawan is a coastal area located in Medan Belawan District, North Sumatra Province. The aim of the research is to determine the feasibility status of the study location if it is developed as a location for floating net cages (KJA). The research was carried out in the sea waters of Belawan in August–September 2022. The research parameters observed during the research were hydrooceanographic data and water quality data including physical parameters, chemical parameters, biological parameters. Determination of water quality status using the STORET Index, CCME WQI Index and principal component analysis (PCA). Observation parameters during the research were clinical symptoms, histological observations and growth performance of Asian sea bass. The research results show that tides, COD and turbidity are parameters that do not comply with water quality standards. The types of phytoplankton consist of 15 species and 4 classes, namely Cyanophyceae, Chlorophyceae, Bacyllariophyceae and Dynophyceae. Observation total vibrio count (TVC) shows that in all water samples it is Log 105 CFU/mL and in snapper organs (gills, liver, kidneys) there are Log 104-105 CFU/g. The results of the research can be concluded that for each zone in Belawan waters there is no difference in the level of pollution between zones in terms of the STORET index (moderately polluted) and the CCME WQI index (marginal) with limiting factors namely COD and turbidity. Belawan waters are in less than suitable condition in August–September for snapper cultivation activities in floating net cages (KJA) characterized by low SR and ADG values. Keywords: Belawan Waters, CCME WQI index, STORET index, principal component analysis (PCA), water quality monitoring ABSTRAK Belawan termasuk kawasan pesisir yang terletak di Kecamatan Medan Belawan, Provinsi Sumatera Utara. Tujuan dari penelitian adalah untuk menentukan status kelayakan lokasi kajian jika dikembangkan sebagai lokasi keramba jaring apung (KJA). Penelitian dilaksanakan di perairan laut Belawan, Kota Medan yaitu pada bulan Agustus–September 2022. Metode pengambilan sampel dilakukan secara purposive sampling. Adapun parameter penelitian yang diamati selama penelitian yaitu data hidro oseanografi dan data kualitas air meliputi parameter fisika (konduktivitas, TDS, salinitas, suhu, kecerahan, kekeruhan), parameter kimia (DO, BOD, COD, amonia, pH), parameter biologi (plankton, TVC). Penilaian kualitas perairan menggunakan Indeks STORET, Indeks CCME WQI dan principal component analysis (PCA). Parameter pengamatan saat penelitian yaitu gejala klinis, pengamatan histologi dan kinerja pertumbuhan ikan kakap putih. Hasil penelitian menunjukkan bahwa pasang surut, COD dan kekeruhan merupakan parameter yang tidak sesuai dengan baku mutu kualitas air. Adapun jenis fitoplankton terdiri dari 15 spesies dan 4 kelas yaitu Cyanophyceae, Chlorophyceae, Bacyllariophyceae dan Dynophyceae. Pengamatan total vibrio count (TVC) menunjukkan bahwa pada seluruh sampel air yaitu Log 105 CFU/mL dan pada organ ikan kakap (insang, hati, ginjal) yaitu Log 104-105 CFU/g. Hasil penelitian dapat disimpulkan bahwa setiap zona dalam perairan Belawan tergolong tercemar sedang dan tidak terdapat perbedaan tingkat pencemaran ditinjau dari indeks STORET dan indeks CCME WQI dengan faktor pembatas yaitu COD dan kekeruhan. Berdasarkan hal tersebut, Perairan Belawan dalam kondisi kurang layak untuk kegiatan budidaya ikan kakap di keramba jaring apung (KJA) ditandai dengan nilai SR dan ADG yang rendah. Kata Kunci: indeks CCME WQI, indeks STORET, monitoring kualitas air, Perairan Belawan, principal component analysis (PCA)