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JURNAL PERIKANAN DAN KELAUTAN TROPIS

JPKT
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Published by Universitas Sam Ratulangi

ISSN : 2302609X EISSN : 23026081 DOI : https://doi.org/10.35800/jpkt

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management

Jurnal Perikanan dan Kelautan Tropis merupakan terbitan berkala ilmiah yang bertujuan menjadi sarana penyebarluasan hasil penelitian dan ilmu pengetahuan dalam bidang Perikanan dan Kelautan di daerah Tropis. Hasil penelitian akan diutamakan untuk diterbitkan. Namun demikian, redaksi juga menerima ulasan ilmiah berupa tinjauan teori, ulasan buku baru, komunikasi singkat dan karya ilmiah lainnya. Artikel bisa ditulis dalam bahasa Indonesia atau Inggris.

Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ecology, Evolution, Behavior and Systematics

Articles 137 Documents

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KESESUAIAN LAHAN BUDIDAYA LAUT DI PERAIRAN KABUPATEN BOLAANG MONGONDOW SELATAN, SULAWESI UTARA Adipu, Yulianty; Lumenta, Cyska; Sinjal, Hengky J
JURNAL PERIKANAN DAN KELAUTAN TROPIS Vol 9, No 1 (2013)
Publisher : Sam Ratulangi University

Penelitian dilakukan untuk mengkaji tingkat kesesuaian lahan budidaya laut, khususnya budidaya rumput laut dan budidaya ikan di Kurungan Jaring Apung (KJA) di perairan Kabupaten Bolaang Mongondow Selatan, Provinsi Sulawesi Utara. Penentuan stasiun pengambilan sampel dilakukan berdasarkan identifikasi adanya aktivitas budidaya rumput laut dan budidaya ikan pada KJA di lokasi tersebut. Lima stasiun pengamatan yakni lokasi budidaya rumput laut desa Matandoi, dan lokasi budidaya ikan dalam KJA di desa Deaga, Torosik, Matandoi dan Pinalantungan. Pada tiap stasiun ditentukan satu titik pengambilan sampel air untuk pengukuran parameter kualitas air, serta aspek fisik lain seperti kecepatan arus dan beda pasang-surut air laut. Parameter kualitas air seperti amoniak, pH, suhu, nitrit dan turbiditas diukur menggunakan Water Test Kit AYI-10 in ScienPro, sementara salinitas dan oksigen terlarut (DO) diukur menggunakan Water Tester Horiba. Data yang diperoleh ditabulasi dan ditampilkan dalam histogram. Untuk menentukan tingkat kesesuaian lahan, data dibandingkan dengan baku mutu persyaratan untuk lokasi budidaya rumput laut dan budidaya ikan di KJA. Hasil penelitian menunjukkan bahwa perairan desa Matandoi sesuai untuk lokasi budidaya rumput laut. Perairan desa Pinalantungan, desa Torosik, dan desa Matandoi sesuai untuk lokasi budidaya ikan di KJA, sedangkan perairan desa Deaga kurang sesuai untuk lokasi budidaya KJA. Kata kunci: kesesuaian lahan, budidaya, rumput laut, KJA, Bolaang Mongondow Selatan. Â This study was aimed to study the suitability level of waters in South Bolaang Mongondow Regency, North Sulawesi Province, for seaweed culture and fish culture in floating net cage (KJA). The stations for water sampling were appointed based on the occurrence of the seaweed culture and finfish culture in KJA in the area. Five stations were appointed, where one station representing seaweed culture area (Matandoi village waters), while four stations representing the floating net cage culture areas (Deaga, Torosik, Matandoi and Pinalantungan village waters). At each station, one point was appointed for sampling of waters for the measurement of water quality parameters and for assessment of other physical features of waters body such as, current velocity, wave height and tide level. The other water quality parameters such as, ammonia, pH, temperature, nitrite, and turbidity were measured using Water Test Kit AYI-10 in ScienPro, whereas dissolve oxygen (DO) and salinity were measured using Horiba Water Tester. The collected data were then tabulated and presented in histogram. To analyze the level of the suitability of the area for seaweed culture and floating net cage culture, the obtained data were compared to the standard water quality for the location of seaweed culture and floating net cage culture. The results show that, the territorial waters of Matandoi village is suitable for seaweed culture area. The territorial waters of Pinalantungan village, Torosik village and Matandoi village are suitable for floating net cage culture area, while territorial waters of Deaga village is less-suitable for floating net cage culture area. Keywords: area suitability, culture, seaweed, floating net cage, South Bolaang Mongondow.

KUALITAS AIR PADA LOKASI BUDIDAYA IKAN DI PERAIRAN DESA ERIS, DANAU TONDANO, KABUPATEN MINAHASA Tumembouw, Sipriana S.
JURNAL PERIKANAN DAN KELAUTAN TROPIS Vol 8, No 1 (2012)
Publisher : Sam Ratulangi University

Eris Society in the village of utilizing the waters of Lake Tondano as a place to fish cultivation in floating net system and step on floating net karamba system. Karamba unit developments and floating net cages in the area of â€‹â€‹cultivation step on the less controllable negative impact on the aquatic environment such as pollution of water quality. For this study aims to measure the quality parameters including pH, temperature, brightness and analyzed water quality parameters including turbidity, dissolved oxygen, ammonia and phosphate so that the water quality conditions in the Village of Lake Tondano District Eris Eris known. From the results obtained by the temperature at a depth of 0.5 meters from surface water ranged from 25.3 to 28.3 Âº C, at a depth of 0.5 meters from the lake bottom ranged from 24.7 to 28 Âº C, the brightness ranges from 182-325 cm, turbidity ranges from 7 - 16 NTU, the pH at a depth of 0.5 meters from the water surface ranged from 6.89 to 8.09, at a depth of 0.5 meters from the lake bottom ranged from 6.93 to 8.03, dissolved oxygen ranged from 7.10 to 7.52 mg / L, ammonia ranging from 0.03 to 0.14 mg / L, and phosphate ranged from 0.02 to 0.12 mg / L. Temperature, brightness, pH, dissolved oxygen and phosphate at the sites are still in good condition that is still in accordance with the water quality standard. For turbidity and ammonia has passed the threshold water quality standard. This is presumably due to domestic wastewater effluent from surrounding communities, causing decomposition which affects the water quality conditions. However the waters in the village of Eris can be used for aquaculture. This is evidenced by the persistent cultivation of fish in the Village District Eris Eris.

PERIKANAN TONGKOL DI PERAIRAN BUYAT PANTE Sompie, Meta S
JURNAL PERIKANAN DAN KELAUTAN TROPIS Vol 7, No 2 (2011)
Publisher : Sam Ratulangi University

ABSTRACTFisheries development in Indonesia, especially in North Sulawesi, is to optimize the utilization of resources through a comprehensively integrated approach and accommodate a variety of interests, such as fishermen, national economy, sustainability of marine resources and fisheries, and environmental balance and sustainability. For fisheries policy preparation, adequate information on fish resources is required. One of the fish resources in Buyat Bay area is little tuna (Auxis thazard). This study aimed to evaluate the little tuna resource and fishing season in the waters of Buyat Bay and surrounding areas. The fishing area in Buyat Bay waters is 4.88 km2. The little tuna biomass of Buyat Bay is 0.486 ton/km2. Monthly average catch was 0.7 tons relative to the maximum sustainable catch of 2.37 ton/month, and then the exploitation rate was 29.59%. This meant that the catch landed in Buyat Pante was lower than the monthly maximum sustainable catch. The catch is allowed at 80% of the maximum sustainable catch, which amounted to 1.89 tons/month. Tuna fishing season in Buyat Bay occurred in March and then from May to September following the pattern of the two-month season of the year for high density.ABSTRAKPembangunan perikanan di Indonesia, khususnya di Sulawesi Utara adalah mengoptimalkan pemanfaatan sumberdaya melalui pendekatan yang terintegrasi dengan komprehensif dan mengakomodasi berbagai kepentingan, yaitu: nelayan, ekonomi nasional, kelestarian sumberdaya kelautan dan perikanan, serta keseimbangan dan kelestarian lingkungan. Untuk penyusunan kebijakan perikanan diperlukan informasi yang memadai dari sumberdaya ikan. Salah satu sumberdaya ikan di wilayah Teluk Buyat adalah ikan tongkol (Auxis thazard). Penelitian ini bertujuan untuk mengevaluasi sumberdaya dan musim penangkapan ikan di perairan Teluk Buyat dan sekitarnya. Area penangkapan ikan di perairan Teluk Buyat (4,88 km2). Biomassa ikan ini di Teluk Buyat 0,486 ton/km2. Tangkapan rata-rata bulanan sebesar 0,7 ton, dibandingkan dengan hasil tangkapan maksimum yang lestari dari 2,37 ton/bulan, kemudian tingkat pemanfaatan ikan tuna di Teluk Buyat berada pada 29,59%. Ini berarti bahwa hasil tangkapan yang didaratkan oleh para nelayan Buyat Pante masih berada di bawah eksploitasi. Hasil tangkapan yang diperbolehkan sebesar 80% dari hasil tangkapan maksimum lestari (1,89 ton/bulan). Musim penangkapan tuna di Teluk Buyat terjadi selama enam bulan, yang dimulai dari bulan Maret dan selanjutnya dari bulan Mei hingga September, mengikuti pola musim dua bulan dalam setahun dengan kepadatan tinggi.

KAJIAN STABILITAS DINAMIS KAPAL PUKAT CINCIN (SMALL PURSE-SEINER) DI BEBERAPA LOKASI SEMENANJUNG SULAWESI Tumiwa, Johnny H; Masengi, Kawilarang WA; Pamikiran, Revols DCh; Polii, Janny Franka
JURNAL PERIKANAN DAN KELAUTAN TROPIS Vol 8, No 3 (2012)
Publisher : Sam Ratulangi University

Kapal penangkap ikan yang terbuat dari kayu dan yang dirancang dan dibangun secara tradisional sangat umum digunakan oleh nelayan di Sulawesi Utara. Untuk efisiensi operasi penangkapan, kapal yang digunakan seharusnya memiliki stabilitas yang baik. Untuk mengetahui nilai stabilitas dari kapal-kapal yang digunakan nelayan, maka penelitian ini telah dilakukan pada salah satu jenis kapal ikan yang umum digunakan yaitu kapal pukat cincin kecil (pajeko) dari tiga tempat di Sulawesi Utara, yaitu di Kota Bitung (pantai timur), Molibagu (pantai selatan) dan Manado (pantai barat). Kapal yang diteliti berjumlah 6 kapal, masing-masing 2 kapal dari setiap tempat, dengan ukuran 4â€“100 GT. Analisis stabilitas dilakukan melalui tahapan pengukuran deskripsi teknik kapal dan percobaan kemiringan. Hasil analisis, berdasarkan posisi relative titik M (metacenter) terhadap G (titik berat), menunjukkan bahwa secara keseluruhan keenam kapal memiliki nilai stabilitas positif berkisar dari 0,289-1,044 meter. Kata kunci: kapal pukat cincin, pajeko, stabilitas dinamis, Sulawesi utara. Â Traditionally-built wooden fishing vessels are very common in North Sulawesi. For the efficiency of fishing operation, those vessels should have good stability. To determine the value of the stability of those fishing vessels, this study has been done on one of the commonly used fishing boats, i.e. small purse seiners (pajeko) from three sites in North Sulawesi, which are the City of Bitung (east coast), Molibagu (south coast) and Tumumpa (west coast). As many as 6 vessels were observed, 2 vessels from each location, with vessel tonnage of 4â€“100 GT. Stability analysis performed through measurement of vessel technical description and inclining experiment. The results of the analysis, based on the relative position of the M (metacenter) point to G (center of gravity) point, indicating that the overall stability of the six ships have positive values ranging from 0.289 to 1.044 meters. Keywords: small purse seiner, pajeko, dynamic stability, North Sulawesi.

Protection of Tondano Watershed and Plastic Waste Hazard to the Environment Fanny Silooy; Henneke Pangkey
JURNAL PERIKANAN DAN KELAUTAN TROPIS Vol. 10 No. 3 (2021)
Publisher : Sam Ratulangi University

The Tondano watershed is a very important natural resource and has a strategic function for the surrounding area up to the city of Manado. However, lately there are many problems that occur in the Tondano watershed. The activity of community partnership program for the PKK group of women in the Pinaesaan Kelurahan is carried out, to refresh the knowledge of the existence and sustainability of the Tondano watershed and to recycle the 2 L plastic bottle waste for simple aquaponic activities.Keyword: Tondano Watershed, plastic waste, sustainability, PKK groupABSTRAKDaerah aliran sungai (DAS) Tondano merupakan sumberdaya alam yang sangat penting dan memiliki fungsi strategis bagi daerah sekitarnya sampai ke kota Manado.Â Namun demikian, akhir-akhir ini terdapat banyak permasalahan yang terjadi di DAS Tondano. Kegiatan program kemitraan masyarakat bagi kelompok ibu PKK di Kelurahan Pinaesaan dilakukan untuk penyegaran kembali tentang eksistensi dan keberlanjutan DAS Tondano serta mendaur ulang limbah botol plastik kemasan 2 L untuk kegiatan akuaponik

PENGARUH JENIS UMPAN TERHADAP HASIL TANGKAPAN IKAN PANCING LAYANG-LAYANG DI SELAT BANGKA KABUPATEN MINAHASA UTARA Takapaha, Stevenly A; Kumajas, Henry J; Katiandagho, Elof M
JURNAL PERIKANAN DAN KELAUTAN TROPIS Vol 6, No 1 (2010)
Publisher : Sam Ratulangi University

Hound needlefish (Cendro or Sako) (Tylosurus sp.) including the types of fish are hard to catch because the surface movements and jumps very agile, is an effective fishing gear to catch this fish is to use a kite fishing. This study aimed to see whether there is the influence of several kinds of bait such as: blue sprat (Spratelloides robustus), sardines (Amblygaster sirm), fish cutlet mackerel scad (Decapterus macarellus), and anchovy (Stolephorus indicus) of the catch. The method used is descriptive. Â Data was collected by use four units of fishing kites gear with four types of bait treatment. Â Based on the analysis we found that the type of bait blue sprat better than mackerel scad and anchovy bait but not significantly different from the bait sardines, which are types of fish caught is Strongylura indicus (4%), Tylosurus Crocodiles (90%) and Tylosurus acus melanotus (6%).

PENGARUH POSISI TALI UTAMA DAN KECEPATAN ARUS TERHADAP GERAKAN SWINGING DAN DIVING DARI MODEL TROLLING BOARD Budiman, Johnny; Mathias, Yan A; Katiandagho, Elof M; Kalangi, Patrice NI; Telleng, Aglius RT; Reppie, Emil; Kumajas, Henry J
JURNAL PERIKANAN DAN KELAUTAN TROPIS Vol 7, No 1 (2011)
Publisher : Sam Ratulangi University

Trolling board is an important troll line accessory which can produce swinging and diving movements of the lure. A laboratory study on the effect of trolling board main line position and current speed on swinging and diving movements was done in a water circulating tank at the Faculty of Fisheries and Marine Science, Sam Ratulangi University. At low speed, the widest swing reached at main line position near the center of trolling board, but at high speed, it reached main line position near the fore tip. Swinging frequency decreased with the current speed. The depth of diving increased as the main line position got closer to the tip and increased with current speed.

Structure Of Mangrove Communities In Baturapa Village, Lolak District, Bolaang Mongondow Regency Frian Patra; Ridwan Lasabuda; Adnan S. Wantasen
JURNAL PERIKANAN DAN KELAUTAN TROPIS Vol. 10 No. 2 (2021)
Publisher : Sam Ratulangi University

The Baturapa Village community uses mangroves to fulfill their various needs (fuel wood, house construction materials, color dyes and synthetic flower-making raw materials). This utilization must be carried out in a controlled manner to preserve the sustainability of the mangrove ecosystem. This study aims to determine the extent and the current structure of the mangrove community in Baturapa Village. The research was conducted in the mangrove area of Baturapa Village, Lolak District, Bolaang Mongondow Regency, North Sulawesi Province in March 2019.The method used was the line transect method to see the mangrove community structure including density, frequency, species dominance and Important Value Index (INP) and diversity index (Hâ€™). Mangrove area was calculated using Google earth pro and ArcGis 10.4 software. The outcomes of the calculation of the area of mangrove in the village of Baturapa are 37.4 hectares. The results of the identification of mangroves in the coastal area of Baturapa Village, Lolak District, Bolaang Mongondow Regency, have 11 species, with 111 total individuals. Of the 3 line transects, the highest species density is Rhizophora stylosa, 800 trees / ha (line transect III) with relative density ( KR) 57.1%, while T\the highest frequency of species is Rhizophora stylosa with a value of 1.0 with a relative frequency (FR) of 50% (line transect III). The highest species dominance is Rhizophora mucronata with a value of 4.6 where relative dominance (DR) is 53.4% (line transect II). Furthermore, the highest species value index (INP) is Rhizophora stylosa with a value of 118.6 (line transect III). Line transect I has the highest diversity index (H;) with a value of 1.99. A value of 1.99 (Hâ€™) greater than 1 and smaller 3.3 means that productivity is sufficient, ecosystem conditions are quite balanced and ecological pressure is moderate.Keywords: Baturapa Village, mangrove area, density, frequency, dominance, index important value, mangrove diversity indexABSTRAKMasyarakat Desa Baturapa memanfaatan mangrove untuk memenuhi berbagai kebutuhan hidupnya (kayu bakar, bahan pembangunan rumah,pewarna jarin dan bahan baku pembuatan bunga sintetis). Pemanfaatan ini harus dilakukan secara terkendali untuk menjaga keberlanjutan ekosistem mangrove. Penelitian ini bertujuan untuk mengetahui luasan dan struktur komunitas mangrove saat ini di Desa Baturapa. Penelitian ini dilakukan di kawasan mangrove Desa Baturapa, Kecamatan Lolak, Kabupaten Bolaang Mongondow, Provinsi Sulawesi Utara pada bulan maret 2019. Metode yang digunakan yaitu metode line transect untuk mengetahui struktur komunitas mangrove meliputi kerapatan, frekuensi, domimasi spesies serta Indeks Nilai Penting (INP) dan Indeks keaneragaman (Hâ€™). Menghitung luas mangrove menggunakan sofware Google earth proÂ dan ArcGis 10,4. Â Hasil perhitungan luas mangroveÂ di desa Baturapa Â 37,4 Hektar. Hasil identifikasi mangrove di wilayah pesisir Desa Baturapa KecamatanÂ Lolak Kabupaten Bolaang Mongondow terdapatÂ 11 spesies,Â dengan total individu sebanyak 111.Â Dari ke-3 line transect, kerapatan spesies tertinggi dimiliki Rhizophora stylosa, 800 pohon/ha (line transect III) dengan kerapatan relatif (KR) 57,1 %. Frekuensi spesies tertinggi adalah Â Rhizophora stylosaÂ dengan nilai 1,0 dengan frekuensi relatif (FR) 50% (line transect III). Dominasi spesies tertinggi adalah Rhizophora mucronata dengan nilai 4,6 dimana dominasi relatif (DR) 53,4% (line transect II).Â Selanjutnya Indeks Nilai Penting (INP) spesies paling tinggi yaitu Rhizophora stylosa dengan nilai 118,6 (line transect III). Line transect Â I memiliki Â indeks keanekaragaman (Hâ€™)Â tertinggi dengan nilai 1,99.Â Nilai 1,99 (Hâ€™) lebih besar 1 dan lebih kecil 3,3 ini berarti produktivitas cukup, kondisi ekosistem cukup seimbang dan tekanan ekologi sedang.Â Kata kunci : Desa Baturapa, luas mangrove, kerapatan, frekuensi, dominasi, Indeks Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â nilai penting,Indeks keaneragaman mangrove

MEDIAN LETHAL CONCENTRATION (LC-50) INSEKTISIDA DIKLOROMETAN PADA NENER BANDENG (Chanos-chanos Forks) Rumampuk, Natalie D; Tilaar, Sandra; Wullur, Stenly
JURNAL PERIKANAN DAN KELAUTAN TROPIS Vol 6, No 2 (2010)
Publisher : Sam Ratulangi University

The result showed that the median of the lethal concentration (LC-50) of dichloromethane insecticides on nener milkfish (Chanos chanos Forsk) for 12 hours and 24 hours are 0.786 ppm, and 0.287 ppm, respectively. The increasing tendency of the time there is less lethalconcentration values, whereas the higher concentration, then the sooner the death of test organisms.

PERAN EKOLOGI BULU BABI DALAM KOMUNITAS RUMPUT LAUT DI PERAIRAN PESISIR KEMA KABUPATEN MINAHASA UTARA Moningkey, Ruddy D
JURNAL PERIKANAN DAN KELAUTAN TROPIS Vol 7, No 1 (2011)
Publisher : Sam Ratulangi University

A study on the functional role of the sea urchin, Salmacis belli, on seagrass bed near the coast of Kema, North Minahasa Regency, was done by analyzing the gut contents, the food preference, and the feeding periodicity. Sea urchins and plants were collected from the seagrass bed by snorkeling along a 100 M transect line with 30 quadrates randomly placed. The feeding periodicity was determined from the gut index in 24 hours with 3 hour intervals.Â The results showed that the sea urchin S. belli fed mainly on seagrass Thallasia hemprichii, Enhalus acoroides and Halimeda opuntioa. The feeding periodicity data indicated that the sea urchins actively fed in the day. The grazing capacity of the sea urchin was not affected by their body size.Â In high density, sea urchins could potentially cause negative impact on the seagrass bed (i.e., destruction of the meadow).

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Contact Name Alex Denny Kambey

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Editorial Address Fakultas Perikanan dan Ilmu Kelautan Universitas Sam Ratulangi Manado Indonesia 95115

Location Kota manado, Sulawesi utara INDONESIA

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Contact Name
Alex Denny Kambey

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Phone
+6282196305145

Journal Mail Official
sdperairan@unsrat.ac.id

Editorial Address
Fakultas Perikanan dan Ilmu Kelautan Universitas Sam Ratulangi Manado Indonesia 95115

Location
Kota manado,

Sulawesi utara

INDONESIA