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All Journal AQUATIC SCIENCE & MANAGEMENT JURNAL ILMIAH PLATAX Jurnal Teknik Informatika JURNAL PERIKANAN DAN KELAUTAN TROPIS ILMU KELAUTAN: Indonesian Journal of Marine Sciences Jurnal Perikanan Universitas Gadjah Mada Vivabio : Jurnal Pengabdian Multidisiplin

Wilhelmina Patty

Fakultas Perikanan Dan Ilmu Kelautan, Universitas Sam Ratulangi Manado

Author-ID : 341178

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Environmental Science Immunology & microbiology Library & Information Science Public Health

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Study on the use of different light intensities on fish catch of raft lift net in Dodinga Bay, West Halmahera Regency Alwi, Djainudin; Kaparang, F. E.; Patty, Wilhelmina
AQUATIC SCIENCE & MANAGEMENT Vol 2, No 2 (2014): Oktober
Publisher : Graduate Program of Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jasm.2.2.2014.12408

Title (Bahasa Indonesia):Â Kajian penggunaan intensitas cahaya lampu yang berbeda terhadap hasil tangkapan bagan perahu di perairan Teluk Dodinga, Kabupaten Halmahera BaratÂ Raft lift net fishermen in Dufa-Dufa, Ternate City, are using the gasoline lamp â€œpetromaxâ€, as accessory equipment in fishing operation. In relation to its development, global energy saving and gasoline conversion to liquid petroleum gas (LPG), it is necessary to design an easier fishing technology either for energy saving, gear use efficiency or economic efficiency in association with utilization time and fish catch increment. The study was aimed at 1) determining the different effect of Tornado Cool light on number of fish and fish species; 2) studying the optimal light intensity for raft lift net fishing operation. Results showed that total fish catches of each light intensity treatment were 867.3 kg for TC10 (240 watts), 1,500 kg for TC8 (192 watts), and 804Â kg for TC6 (144 watts), respectively. Five fish species were caught: anchovy (Stelophorus sp.), 56.62%, sardine (Sprateloides delicatulus), 35.03%, long-jawed mackerel (Rastrelligger kanagurta), 4.80%, squid (Loligo sp.), 3.05%, scad (Selaroides sp.), 0.50%. The statistical test indicated no significant difference between mean catch of different light intensity treatments.Â Nelayan bagan perahu di Kelurahan Dufa-Dufa Kota Ternate yang beroperasi di perairan Teluk Dodinga masih mengandalkan lampu petromaks sebagai alat bantu penangkapan ikan. Sejalan dengan berkembangnya penghematan energi secara global dan dengan adanya konversi minyak tanah ke gas, maka perlu didesain teknologi yang lebih mudah baik dalam rangka penghematan energi, efisien dalam penggunaan alat dan ekonomis yang dihubungkan dengan waktu penggunaan serta dapat meningkatkan hasil tangkapanÂ maka, penelitian ini bertujuan untuk; 1) Mengetahui pengaruh intensitas yang berbeda dari lampu Tornado Cool terhadap jumlah dan jenis hasil tangkapan, 2) Mengkaji intensitas yang sesuai untuk pengoperasian Bagan perahu. Hasil penelitian menunjukkan bahwa jumlah total hasil tangkapan yang diperolah masing-masing perlakuan lampu dengan intensitas cahaya yang berbeda yaitu TC10 (240 watt) sebesar 867,3 kg, TC8 (192 watt) 1500 kg, dan TC6 (144 watt) 804 kg. Terdapat 5 jenis ikan yang tertangkap dengan komposisi yakni Teri (Stelophorus sp) 56,62%, Sarden (Sprateloides delicatulus) 35,03%, Kembung (Rastrelligger kanagurta) 4,80 %, Cumi (Loligo sp) 3,05% dan Selar (Selaroides sp) 0,50%. Berdasarkan hasil uji statistik tidak ada perbedaan yang nyata antara rata-rata hitung hasil tangkapan dari perlakuan lampu dengan intesitas cahaya yang berbeda.

ANALISA SEBARAN ILUMINASI CAHAYA PETROMAKS DENGAN PERLAKUAN BERTUDUNG DAN TANPA TUDUNG Patty, Wilhelmina
JURNAL PERIKANAN DAN KELAUTAN TROPIS Vol 6, No 3 (2010)
Publisher : Sam Ratulangi University

Petromaks lights are often used by fishermen as fishing tools. Transmitting light petromaks much influenced by various factors such as fading (attenuation). The purpose of this paper is to understand the distribution of light transmitting petromaks and factors influencing it. The result showed that the illumination of light shade petromaks which light transmitting distance rangeÂ furtherÂ (Â± 8 m) than petromaks lights that are not covered (Â± 21 m). The constant fading (attenuation) of light is also greater (0.78) for light petromaks hooded lamp from the lamp to petromaks without hood (0:24).

PERBEDAAN PENGGUNAAN INTENSITAS CAHAYA LAMPU TERHADAP HASIL TANGKAPAN BAGAN APUNG DI PERAIRAN SELAT ROSENBERG KABUPATEN MALUKU TENGGARA KEPULAUAN KEI Julianus, Notanubun; Patty, Wilhelmina
JURNAL PERIKANAN DAN KELAUTAN TROPIS Vol 6, No 3 (2010)
Publisher : Sam Ratulangi University

One of potential fishing grounds for small pelagic fish in Southeast Mallucas Regency is Rosenberg Strait waters. In this region, a study on the effect of different light intensities of floating lift net on fish catches was carried out. The analyses were done on light distribution of 4 light intensities different: Petromaks Lamp and Underwater Lamps of each 18 watt, 36 watt and 54 watt. This study showed that catches of floating lift net using different light intensities were statistically significantly different. The use of 36 watt and 54 watt underwater lamp yielded the same amount of catches but higher than that of 18 watt-underwater lamp and petromaks, both in number and species. Catches consisted of 17 species, 16 fishs and 1 mollusca. Number of species and size also varied with light intensity used. There were 13 fishs species dominated by Stolephorus indicus as much as 46.9 kg or 22% for petromaks catches, 14 fishs species dominated by Rastrelliger kanagurata as much as 64 kg (31%) for 18 watt underwater lamp, 17 fishs species dominated by Rastrelliger kanagurata as much as 76 kg (28%) for 36 watt underwater lamp, and 15 fishs species dominated by Stolephorus devisi as much as 54.8 kg (22%) for 54 watt underwater lamp, respectively. Based on the results, it is recommended that the use of light intensity in fishing operations of floating lift net should be 36 watt and 54 watt underwater lamps, due to high catches, both in number and species. Beside that, since light fishing has also caught illegal fish size, number of this fishing gear type should be controlled.

KARAKTERISTIK TIPE DASAR DAN PEMANFAATAN PERAIRAN DI SEKITAR PULAU GANGGA, KABUPATEN MINUT Patty, Wilhelmina
JURNAL PERIKANAN DAN KELAUTAN TROPIS Vol 6, No 2 (2010)
Publisher : Sam Ratulangi University

Coastal resources and space in the coastal around Gangga island, has been used for fishing activities and marine tourism. The purpose of this study to map the profile of bottom waters and to identify patterns sublitoral basic surface waters. The survey was conducted by using the acoustic method of sounding, followed by sediment sampling as well as shooting on the surface of the bottom waters. The result of observation indicates that the basic conditions of slope waters around the island of Ganga slope varies from flat to very steep slopes. Waters of the western Gangga island smaller flat slope found in coastal landform ranging from mangroves, coral reefs and seagrass. Bottom waters to the east of Gangga island to steep slope, with the basic pattern dominated by coral reefs and sand.

The relationship between El NiÃ±o Southern Oscillation (ENSO) and oceanographic parameters in North Sulawesi waters Lasut, Astrid Y.; Patty, Wilhelmina; Warouw, Veibe; Sondakh, Calvyn A.; Bara, Robert A.; Luasunaung, Alfret; Sumilat, Deiske A.
AQUATIC SCIENCE & MANAGEMENT Vol 9, No 1 (2021): APRIL
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jasm.9.1.2021.32494

Information about oceanographic conditions is important to determine the fertility level of waters. Oceanographic parameters in water can be influenced by global climate factors, one of them is the ENSO (El NiÃ±o Southern Oscillation) phenomenon. There have been many studies on the effect of ENSO phenomenon on oceanographic variability, but no studies have been carried out in the waters of North Sulawesi. This study aims to determine the effect of the ENSO phenomenon on the variability distribution of oceanographic parameters in North Sulawesi waters. The data used for this study were Sea Surface Temperature (SST) and chlorophyll-a from the AQUA-MODIS imaging results, wind reanalysis results from ECMWF, and Nino 3.4 index as an indicator of ENSO from NOAA. The data were processed and analyzed using quantitative analysis methods in the form of graphics. The results showed an indirect effect of the ENSO phenomenon on SST parameters and chlorophyll-a. This is because the effect of the ENSO phenomenon occurred in a certain period:Â when strong El NiÃ±o triggered low temperatures of sea surface and high chlorophyll-a, and when La NiÃ±a was strong it triggered high temperatures of sea surface and low chlorophyll-a. Meanwhile, the wind speed pattern showed an insignificant effect because the wind speed was still dominated by the influence of the monsoon pattern.Indonesian title:Â Hubungan antara El NiÃ±o Southern Oscillation (ENSO) dan parameter oseanografi di perairan Sulawesi Utara

Impact of tropical cyclone Amang on variability of wind speed, salinity, sea surface temperature, and their relationship to chlorophyll-a in sea waters of Sangihe Island Rachim, M. Hatta; Schaduw, Joshian N.W.; Wantasen, Adnan S.; Patty, Wilhelmina; Ngangi, Edwin L.A
AQUATIC SCIENCE & MANAGEMENT Vol 9, No 2 (2021): OCTOBER
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jasm.v9i2.34589

High concentrations of chlorophyll-a can be used to predict where fish gather. On the other hand, tropical cyclones are one of the triggering factors for vertical stirring and upwelling that cause fertility of waters. The Sangihe Island area is not an effective area for the formation of tropical cyclones. However, due to its geographical location with a tropical cyclone area and trajectory, the potential for disturbances caused by cyclones is impactful on Sangihe Island. The distribution of wind speed, salinity, sea surface temperature and chlorophyll-a concentration can be detected by satellite remote sensing imagery. This study aims to analyze the impact of Tropical Cyclone Amang on the variability of wind speed, salinity, sea surface temperature and on the concentration of chlorophyll-a in Sangihe Island. This study useswind speed, salinity, sea surface temperature and chlorophyll-a data during the Amang Tropical Cyclone (January 6-27, 2019) from the AQUA-MODIS satellite imagery. The results show that the relationship between wind speed and chlorophyll-a concentration has impact on other parameters where both parameters showed a strong correlation value. It was also showed on the relationship between sea surface temperature and chlorophyll-a.However, the relationship between salinity and chlorophyll-a concentration showed lowest effect among those parameters.Indonesian title:Â Dampak siklon tropis Amang terhadap variabilitas kecepatan angin, salinitas, suhu permukaan laut, dan hubungannya dengan klorofil-a di perairan laut Pulau Sangihe

Penentuan Pertumbuhan Ikan Tropis dari Analisa Frekwensi Ukuran Panjang Ikan Wilhelmina Patty
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 10, No 4 (2005): Jurnal Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Umur dan pertumbuhan dua jenis ikan : Lutjanus gibbus dan Lethrinus miniatus dianalisa dengan metoda analisa frekwensi panjan g. Hasil analisa menunjukan bahwa ada 2 kelompok umur yang ditemukan dengan metoda Maximum-Successifs. Kelompok umur-panjang ini akan digunakan untuk menghitung parameter pertumbuhan Von Bertalanffy. Nilai parameter yang saling berhubungan dan baik dipakai untuk penentuan pertumbuhan, tergantung dari distribusi frekwensi ukuran panjang ikan, variabilitas dan konsistensi distribusi ukuran panjang tersebut. Hasil yang ditemukan oleh metoda Maximum-Successif tidak banyak berbeda dengan metoda lain seperti Normsep dan Otolith.Kata kunci : Pertumbuhan, analisa frekwensi ukuran panjang, Von Bertalaffy, Ikan tropisAge and growth of two tropical marine fish species : Lutjanus gibbus and Lethrinus miniatus, were determined by length frequency analysis. The results showed the presence some age classes of fish determined byMaximum-Successifs methods. The incorporation of age-at-length data into a length frequency analysis generally improves the identification of best growth parameters. The degree of usefulness of the length at age data to describing the growth curve depend on the variability of length at any age and the consistency of length composition and the length-at-age data. Method of growth analysis,Maximum successifs gave practically thesame result in observed interval length in comparison with other methods (Normsep and Otolithes).Key words : Growth, Length frequency analysis, Von Bertalanffy, Tropical fish.

Utilization of Wavewatch III Model Output Data for High Wave Analysis Ricky Daniel Aror; Wilhelmina Patty; Andri Ramdhani
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 24, No 3 (2019): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

This study discusses the occurrence of extreme waves in North Sulawesi waters from 17 to 24 June 2016 using Wavewatch III (WW3) model output data with resolution 0.125o x 0.125o extracted from MIDAS-BMKG. The extracted WW3 data is mapped using ArcMap and presented in graphical form. Based on the results of the study, the significant wave height is in the range of 0.0 to 1.0 m and the average wind speed ranges from 0 to 15 knots in the early phase of 17-19 June 2016. Significant wave increases in the peak phase of 20-22 June 2016 that reaches 1.5 - 2.0 m and average wind speeds reach 25 knots. The average wind speed and the significant wave height decreased after June 23, 2016. The high of the significant wave are influenced by the low-pressure circulation in the atmosphere near the Sangihe-Talaud Islands. Further study can be done as a comparison of this study e.g. using wave data from altimeter satellites or comparing with other parameters such as the influence of swell and wind sea.

Komunitas Ikan Karang pada Terumbu Buatan Biorock di Perairan Pulau Siladen Kota Manado, Sulawesi Utara Wilhelmina Patty; Gaspar Manu; Emil Reppie; Lit Nickson Dey
Jurnal Perikanan Universitas Gadjah Mada Vol 17, No 2 (2015)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.10364

Kondisi terumbu karang hidup dan jumlah jenis ikan Target di Taman Nasional Bunaken semakin menurun. Penelitian ini bertujuan untuk menerapkan teknologi biorock dan studi tentang kondisi ekologi komunitas ikan karang di sana. Penelitian ini dilakukan pada bulan Agustus-Oktober 2014 di Pulau Siladen bagian Barat Daya, Kecamatan Bunaken, Kota Manado Sulut. Pengukuran faktor lingkungan dengan Horiba U-50 Struktur biorock dibuat dari kerangka besi (diameter 1.2 cm) berukuran 2x2x1.5m. Bibit karang (Acropora sp.) ditransplantasi di terumbu buatan. Data ikan karang diamati selama 5-10 menit menurut metode stationery visual sensus. Pengambilan data dilakukan sebanyak dua kali dalam sehari yaitu pagi hari (pukul 09.00 Wita) dan siang hari (pukul 14.00 Wita). Jenis ikan di Biorock dapat dikelompokan dalam 11 Famili, 35 Genus dan 277 ind. Jumlah jenis ikan pada pengamatan Sore lebih tinggi dari pada pagi hari. Tingginya jenis ikan di perairan ini karena kualitas air laut yang belum tercemar.Famili Acanthuridae dan Pomacentridae sering di temukan di pagi dan sore hari. Hal ini menunjukkan bahwa kondisi ikan-ikan karang masih berada pada habitatnya semula. Hal ini sesuai kondisi substrat di lokasi Pulau Siladen. Jumlah Ikan target lebih banyak dari kelompok ikan Major dan indikator. Untuk kelompok ikan target didominasi oleh Famili Acanthuridae dan Labridae. Tingkat eksploitasi jenis-jenis ikan tersebut masih rendah. Nilai indeks kelimpahan (R) berkisar 4,29 dan 6,84, dan nilai keragaman jenis (H’) berkisar 2.73 dan 2.89. Nilai ini lebih tinggi dari di terumbu buatan beton yang diletakan di perairan pantai Malalayang, Kota Manado. Hal ini menunjukan bahwa kondisi karang di terumbu buatan biorock untuk komunitas ikan relatif lebih baik dibandingkan dengan di terumbu buatan beton.Kondisi terumbu karang hidup dan jumlah jenis ikan Target di Taman Nasional Bunaken semakin menurun.Penelitian ini bertujuan untuk menerapkan teknologi biorock dan studi tentang kondisi ekologi komunitasikan karang di sana. Penelitian ini dilakukan pada bulan Agustus-Oktober 2014 di Pulau Siladen bagianBarat Daya, Kecamatan Bunaken, Kota Manado Sulut. Pengukuran faktor lingkungan dengan HoribaU-50 Struktur biorock dibuat dari kerangka besi (diameter 1.2 cm) berukuran 2x2x1.5m. Bibit karang(Acropora sp.) ditransplantasi di terumbu buatan. Data ikan karang diamati selama 5-10 menit menurutmetode stationery visual sensus. Pengambilan data dilakukan sebanyak dua kali dalam sehari yaitu pagihari (pukul 09.00 Wita) dan siang hari (pukul 14.00 Wita). Jenis ikan di Biorock dapat dikelompokan dalam11 Famili, 35 Genus dan 277 ind. Jumlah jenis ikan pada pengamatan Sore lebih tinggi dari pada pagihari. Tingginya jenis ikan di perairan ini karena kualitas air laut yang belum tercemar.Famili Acanthuridaedan Pomacentridae sering di temukan di pagi dan sore hari. Hal ini menunjukkan bahwa kondisi ikan-ikankarang masih berada pada habitatnya semula. Hal ini sesuai kondisi substrat di lokasi Pulau Siladen.Jumlah Ikan target lebih banyak dari kelompok ikan Major dan indikator. Untuk kelompok ikan targetdidominasi oleh Famili Acanthuridae dan Labridae. Tingkat eksploitasi jenis-jenis ikan tersebut masihrendah. Nilai indeks kelimpahan (R) berkisar 4,29 dan 6,84, dan nilai keragaman jenis (H’) berkisar 2.73dan 2.89. Nilai ini lebih tinggi dari di terumbu buatan beton yang diletakan di perairan pantai Malalayang,Kota Manado. Hal ini menunjukan bahwa kondisi karang di terumbu buatan biorock untuk komunitasikan relatif lebih baik dibandingkan dengan di terumbu buatan beton .

Comparison of Catch and Fish Interest in Surface LED Lights and Underwater LED Lights at FADs around Rafts in Manado Bay Laian, Natalis; Patty, Wilhelmina; Kalangi, Patrice Nelson I.
Jurnal Ilmiah Platax Vol. 11 No. 1 (2023): ISSUE JANUARY-JUNE 2023
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v11i1.43939

Manado Bay waters is one of the water areas in North Sulawesi that has potential fishery resources, with fishing efforts using rafts mounted on surface electric lights. For high FAD usefulness, the light used must be able to collect fish that are at great distances both horizontally and vertically. The purpose of this study was to obtain the composition of the fish caught and how much the fish was determined to be when the raft was without lights in the water and when the raft was equipped with lights in the water. The method used was an experiment using 2 (two) types of lights, namely electric surface lights and LED lights in water, and 3 (three) types of fishing gear, namely fishing rods, ring seines and nets). The types of fish caught were dominated by selar fish (Selaroides sp), moonfish (Lampris guttaus), Trevally fish (Caranx sp) and squid (Loligo sp). The fish's interest in the light was observed since the first 15 minutes the lights were turned on, and were around 4 to 6 meters and the longer they were getting closer to the lights for about 1 hour the fish would cluster around the raft for about 2-4 meters. Keywords: FAD, Underwater lamp, Manado Bay. Abstrak Perairan Teluk Manado merupakan salah satu kawasan perairan di Sulawesi Utara yang memiliki sumberdaya perikanan yang potensial, dengan usaha penangkapan ikan dengan alat bantu rakit yang dipasang lampu listrik permukaan. Untuk daya gunanya rumpon yang tinggi, maka cahaya yang digunakan harus mampu mengumpulkan ikan yang berada pada jarak yang jauh baik horisontal maupun vertikal. Tujuan penelitian ini adalah mendapatkan komposisi hasil tangkapan ikan dan berapa dalam ketetapan ikan saat rakit tanpa lampu dalam air dan saat rakit dilengkapi lampu dalam air Metode yang digunakan adalah experimen dengan menggunakan 2 (dua) tipe lampu yakni lampu listrik permukaan dan lampu LED dalam air, dan 3 (tiga) jenis alat tangkap yakni pancing, pukat cincin dan jaring). Jenis ikan yang tertangkap didominasi berturut-turut oleh ikan selar (Selaroides sp), ikan moonfish (Lampris guttaus), ikan bobara (Caranx sp) dan cumi-cumi (Loligo sp). Ketertarikan ikan pada cahaya lampu teramati sejak 15 menit pertama dinyalakan lampu, dan berada di sekitar 4 sampai 6 meter dan semakin lama akan semakin mendekat ke lampu kira kira selama 1 jam ikan akan bergerombol di sekitar rakit sekitar 2 – 4 meter. Kata Kunci: Rakit, Lampu Dalam AIr, Teluk Manado.

Co-Authors A.A. Ketut Agung Cahyawan W Adnan Wantasen Adrie A. Tarumingkeng Adrie Tarumingkeng Agustinus Jacobus Alfret Luasunaung Andika La Ode Andri Ramdhani Angmalisang, Ping Astony Anindito Leksono Bakri, Abu Buana, Muhammad Candra Calvyn F. A. Sondak, Calvyn F. A. Deiske Adeliene Sumilat, Deiske Adeliene Djainudin Alwi, Djainudin Donny Tulengen Dringhuzen J. Mamahit Edwin D Ngangi Emil Reppie Emil Reppie F. E. Kaparang, F. E. Fanny Silooy Fycki Fendi Imbir, Fycki Fendi Gaspar Manu Gohao, Leonard H. Bawuno Husain, Herianto Inneke F. M Rumengan Johnny Budiman Johny Budiman Johny Wenno Joice R.T.S.L Rimper Joshian N.W. Schaduw Kalangi, Patrice Nelson I. Kurniati Kemer Laian, Natalis Lasut, Astrid Y. Lit Nickson Dey Lumuindong, Frans Manu, Lusia Notanubun Julianus Nurmeilita Taher Pamikiran, Revols Dolfi Ch Pangalila, Fransisco Patrice N.I. Kalangi Rachim, M. Hatta Rangan, Jety K. Ricky Daniel Aror Robert A. Bara Rose O. S. E. Mantiri, Rose O. S. E. Sherwin R.U.A Sompie Sompie, Sherwin Tarumingkeng, Theofilio Veibe Warouw Yulita Anggaseng

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