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All Journal JURNAL ILMIAH PLATAX Jurnal Ilmu Kelautan Kepulauan ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua JURNAL BAHARI PAPADAK ABDI UNISAP: Jurnal Pengabdian Kepada Masyarakat
Tampa, Ahazia Imanuel
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Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemistry Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Physics Social Sciences Other

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Journal : JURNAL ILMIAH PLATAX

 1 
MORFOMETRIK KIJING TAIWAN (Anodonta woodiana) DI BEBERAPA LOKASI DI KABUPATEN MINAHASA DAN MINAHASA UTARA Ahazia I. Tampa; Cyska Lumenta; Ockstan J. Kalesaran
Jurnal Ilmiah PLATAX Vol. 2 No. 2 (2014): EDISI MEI - AGUSTUS 2014
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.2.2.2014.7148

Abstract

This study was conducted to determine morphometric kijing taiwan at several locations in Minahasa District and North Minahasa regency and its association with the abundance of plankton and water quality. Sampling gravestone taiwan and water quality obtained from the four (4 ) locations: Rap Rap Village, BBAT Tatelu North Minahasa Regency, Paleloan and Tataaran II Village, Minahasa regency. Morphometric measurements kijingg taiwan include dimensional measurements and weighing of the shell. Measurement of shell dimensions include length , width , and thickness. Include the weighing of the weighing of the total, shell weight and wet weight of meat. Water quality measurements carried out directly at the sites include measurement of temperature, pH, dissolved oxygen and water base texture, while the identification of plankton carried in Pathology and Clinical Laboratory of Fish Diseases, Faculty of Fisheries and Marine Sciences, University of Sam Ratulangi. Morphometric measurements will be taken in any of 50 individual kijing taiwan each location. The results of morphometric measurements in multiple locations showed uniform size Tataaran II contained in the Village, the Village and Village Paleloan Rap Rap while in BBAT Tatelu uniformity of size only in size from 7-18 to 9-74 cm was caused by Taiwan in the pool because kijing BBAT Tatelu regarded as pest extermination so regularly done. Relationships shell length and total weight kijing taiwan to change at any time is influenced by several factors such as the condition of gonadal maturation , water quality and availability of food in the waters.
Haematological Response of Catfish (Clarias sp.) to Variations in Stocking Density in a Bucket Aquaponics System Pasaribu, Wesly; Fransira, Immaria; Santoso, Priyo; Tampa, Ahazia Imanuel
Jurnal Ilmiah PLATAX Vol. 13 No. 2 (2025): ISSUE JULY-DECEMBER 2025
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v13i2.65650

Abstract

Determining the optimum stocking density is a key aspect of intensive catfish farming to maintain fish health and reduce mortality rates. This study aims to evaluate the effect of three stocking densities (20, 30, and 40 fish per bucket) on the hematological profile and mortality of catfish (Clarias sp.) in a bucket-based farming system. The fish were reared for 56 days, and blood samples were taken on days 0, 28, and 56 to measure total white blood cells (WBC), lymphocytes, monocytes, granulocytes, red blood cells (RBC), hemoglobin, hematocrit, and platelet count. Mortality was calculated at the end of the rearing period based on the initial number of fish and the number of live fish. Data were analyzed using one-way ANOVA followed by Tukey HSD test (p < 0.05). Results showed that on day 28, densities of 30 and 40 fish triggered a significant increase in WBC and lymphocytes compared to 20 fish, indicating a stress response and non-specific immune activation at high stocking densities. Chronically, SDM, hemoglobin, and some hematocrit values on days 28 and 56 were consistently lower at densities of 30 and 40 fish, while the lowest platelet count was found at a density of 30 fish. Cumulative mortality increased sharply from around 15% at a density of 20 fish to ±42% and ±56% at densities of 30 and 40 fish. The combination of hematology profiles and mortality showed that a density of 20 fish per bucket was the most physiologically and biologically feasible stocking density under the maintenance conditions used in this study. Keywords: Aquaponics, Catfish, Density, Hematology, Abstrak Penentuan padat tebar optimum merupakan aspek kunci dalam budidaya lele intensif untuk menjaga kesehatan ikan dan menekan tingkat kematian. Penelitian ini bertujuan mengevaluasi pengaruh tiga tingkat kepadatan (20, 30, dan 40 ekor per ember) terhadap profil hematologi dan mortalitas ikan lele (Clarias sp.) dalam sistem pemeliharaan berbasis ember. Ikan dipelihara selama 56 hari, dan pengambilan sampel darah dilakukan pada hari ke-0, 28, dan 56 untuk mengukur sel darah putih total (SDP), limfosit, monosit, granulosit, sel darah merah (SDM), hemoglobin, hematokrit, dan jumlah trombosit. Mortalitas dihitung pada akhir pemeliharaan berdasarkan jumlah ikan awal dan ikan hidup. Data dianalisis menggunakan One-way ANOVA diikuti uji Tukey HSD (p < 0,05). Hasil menunjukkan bahwa pada hari ke-28, kepadatan 30 dan 40 ekor memicu peningkatan signifikan SDP dan limfosit dibanding 20 ekor, mengindikasikan respon stres dan aktivasi imun non-spesifik pada padat tebar tinggi. Secara kronis, nilai SDM, hemoglobin, dan sebagian hematokrit pada hari ke-28 dan ke-56 konsisten lebih rendah pada kepadatan 30 dan 40 ekor, sedangkan trombosit paling rendah dijumpai pada kepadatan 30 ekor. Mortalitas kumulatif meningkat tajam dari sekitar 15% pada kepadatan 20 ekor menjadi ±42% dan ±56% pada kepadatan 30 dan 40 ekor. Kombinasi profil hematologi dan mortalitas menunjukkan bahwa kepadatan 20 ekor per ember merupakan padat tebar yang paling layak secara fisiologis dan biologis pada kondisi pemeliharaan yang digunakan dalam penelitian ini.. Keywords: Akuaponik, Budidakber, Hematologi, Kepadatan, Lele
Analysis of Water Quality as an Indicator of Tourism Feasibility in the Waters of Batu Angus, Bitung City Tampa, Ahazia Imanuel; Missa, Yudishinta; Hidayati, Desy Amalia; Boikh, Lebrina Ivantry; Palinggi, Rifka Liling; Harmos, Nikanor Hersal; Sejati, Martina Ayu
Jurnal Ilmiah PLATAX Vol. 13 No. 2 (2025): ISSUE JULY-DECEMBER 2025
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v13i2.62703

Abstract

Coastal area have great potential for the development of marine tourism; however, their viability highly depends on environmental quality, particularly water quality. This study aims to analyze the physical and chemical parameters of water quality as indicators of tourism feasibility in the Batu Angus coastal area, Bitung City, North Sulawesi. Data collection was conducted at three representative sampling points using a descriptive quantitative approach, with parameters including temperature, water clarity, pH, salinity, dissolved oxygen (DO), ammonia, and visual observations of waste presence, oil films, and odors. The measurement results show that all parameters are within the seawater quality standards for tourism based on Government Regulation No. 22 of 2021. Temperature ranged from 29.05–29.17 °C, clarity reached up to 9 m, pH ranged from 7.85–8.11, salinity from 32.93–33.28 ppt, DO from 8.47–9.16 mg/L, and ammonia levels were very low (<LOD–0.005 mg/L). No signs of visual pollution, such as waste, oil layers, or odor, were detected. Based on these findings, the Batu Angus coastal waters are deemed suitable for development as a marine tourism destination. This study recommends sustainable management through regular water quality monitoring and an ecotourism approach to maintain marine environmental quality. Keywords: water quality, marine tourism, Batu Angus, physical-chemical parameters, tourism feasibility, ecotourism. Abstrak Perairan pesisir memiliki potensi besar dalam pengembangan pariwisata bahari, namun kelayakannya sangat bergantung pada kualitas lingkungan, khususnya kualitas air laut. Penelitian ini bertujuan untuk menganalisis parameter fisik dan kimia kualitas air sebagai indikator kelayakan wisata di kawasan perairan Batu Angus, Kota Bitung, Sulawesi Utara. Pengumpulan data dilakukan pada tiga titik representatif menggunakan pendekatan deskriptif kuantitatif dengan parameter yang meliputi suhu, kecerahan, pH, salinitas, oksigen terlarut (DO), amonia, serta pengamatan visual terhadap keberadaan sampah, lapisan minyak, dan bau. Hasil pengukuran menunjukkan bahwa seluruh parameter berada dalam kisaran baku mutu air laut kategori wisata berdasarkan PP No. 22 Tahun 2021. Suhu berkisar antara 29,05–29,17 °C, kecerahan mencapai 9 m, pH berkisar antara 7,85-8,11, salinitas berkisar antara 32,93-33,28 ppt, DO berkisar antara 8,47–9,16 mg/L, dan kadar amonia sangat rendah (<LOD–0,005 mg/L). Tidak ditemukan indikasi pencemaran visual seperti sampah, lapisan minyak serta bau. Berdasarkan hasil tersebut, perairan Batu Angus dinyatakan layak untuk dikembangkan sebagai kawasan wisata bahari. Penelitian ini merekomendasikan pengelolaan berkelanjutan melalui pemantauan kualitas air secara berkala dan pendekatan ekowisata untuk menjaga kualitas lingkungan laut. Kata kunci: kualitas air, wisata bahari, Batu Angus, parameter fisik-kimia, kelayakan wisata, ekowisata
Co-Authors Ayu, Lastri Sri Ayubi, Aludin Al Cyska Lumenta Desy Amalia Hidayati Harmos, Nikanor Hersal Immaria Fransira Lady Cindy Soewarlan, Lady Cindy Larwuy, Winster Lebrina Ivantry Boikh Martina Ayu Sejati Missa, Yudishinta Nikanor Hersal Armos Ockstan J. Kalesaran Palinggi, Rifka Liling Priyo Santoso Wesly Pasaribu