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Current Trends in Aquatic Science
Published by Universitas Udayana
ISSN : 26217368     EISSN : 26217473     DOI : -
Core Subject : Education,
Other
Arjuna Subject : -
Articles 16 Documents
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Search results for , issue "Vol 2 No 1 (2019)" : 16 Documents clear
Cover dan Daftar Isi CTAS Vol 2 No 1 (2019) Admin CTAS
Current Trends in Aquatic Science Vol 2 No 1 (2019)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Abstract

Cover dan Daftar Isi CTAS Vol 2 No 1 (2019)
Prevalensi dan Intensitas Ektoparasit Ika Nila (Oreochromis niloticus) di Bendungan Telaga Tunjung, Tabanan Ida Ayu Grisandi Dewi Kurnia; Pande Gde Sasmita Julyantoro; Endang Wulandari Suryaningtyas
Current Trends in Aquatic Science Vol 2 No 1 (2019)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Abstract

This study aims to determine the value of the prevalence and intensity of ectoparasites in Tilapia (Oreochromis niloticus) in Telaga Tunjung Dam and measure the parameters of water quality, temperature, pH, and DO. The number of tilapia studied was 30, sampling was done at 3 stations in Telaga Tunjung Dam. Identification of ectoparasites was carried out at the Fisheries Science Laboratory, Water Resources Management Study Program, Faculty of Marine and Fisheries, Udayana University. Ectoparasites were identified in the mucus, dorsal, caudal, operculum and gill organs of the tilapia by skin scraping and wet mount methods. Data were analyzed by descriptive quantitative which calculated differences in the prevalence and intensity of ectoprasite infections and correlation tests to determine the relationship of length and weight of fish with intensity. The results of the three stations show the prevalence value with the "Usually" criteria, which is still in the level of "Medium" infection. At stations I and III the prevalence value is 70% and at station II is 80%. The intensity value obtained at station I is 6.7 (tail / ind) the level of infection is "Medium", whereas in stations II and III the infection rates are "Low" which are 3.5 and 4.0 (tail / ind). After a correlation test, it was found that the relationship between the length and weight of tilapia with ectoparasite intensity was positively correlated with values ??of 0.1876 and 0.0878. The results of temperature water quality parameters in the three stations ranged from 26.8 -28.2 ?, for the results of pH values ??in the three stations ranged from 7.3 to 8.2 and the results of DO parameter values ??ranged from 4.3 to 5.5 mg / l, where the results of measurements of temperature, pH and DO water quality parameters in the Telaga Tunjung Dam are still in the optimal category.
Distribusi Dan Kelimpahan Bulu Babi (Echinoidea) Di Perairan Pulau Pasir Putih, Desa Sumberkima, Buleleng, Bali Ni Putu Emie Noviana; Pande Gde Sasmita Julyantoro; Dewa Ayu Angga Pebriani
Current Trends in Aquatic Science Vol 2 No 1 (2019)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Abstract

This research was conducted in the waters of Pasir Putih Island, Sumberkima Village, Gerokgak District, Buleleng Regency, Bali Province. This research was conducted from February to April 2018. This study aims to determine the distribution patterns and abundance of sea urchins, as well as water quality conditions in the waters of Pulau Pasir Putih. The method used was the method of observation and descriptive method. In this study, there were 5 species of sea urchins from 4 families, Echinothrix calamaris and Diadema setosum from Diadematidae family, Tripneustes gratilla from Toxopneustidae family, Brissus latecarinatus from Brissidae family and Echinometra mathaei from Echinometridae family. Echinothrix calamaris has uniform distribution pattern with Id <1, Diadema setosum has clustered distribution pattern with Id> 1, Tripneustes gratilla has clustered distribution pattern with Id> 1, Brissus latecarinatus has clustered distribution pattern with Id> 1, Echinometra mathaei has clustered distribution pattern with Id> 1. Echinothrix calamaris abundance is 2,42 ind/m2 with relative abundance is 21%, Diadema setosum abundance is 6 ind/m2 with relative abundance is 53%, Tripneustes gratilla abundance is 2,33 ind/m2 with relative abundance is 3%, Brissus latecarinatus abundance is 0,17 ind/m2 with relative abundance is 2%, and Echinometra mathaei abundance is 2,42 ind/m2 with relative abundance is 21%. The value of community structure of sea urchins in the water of Pasir Putih Island indicates that medium diversity, unstable uniformity and low dominance. The condition of water quality in Pulau Pasir Putih was still within the threshold for the life of sea urchins. Based on the research, Diadema setosum species has the highest abundance with clustered pattern distribution.
Kelimpahan Bakteri Coliform di Perairan Laut Celukanbawang, Provinsi Bali Firda Nurdiana; Pande Gde Sasmita Julyantoro; Endang Wulandari Suryaningtyas
Current Trends in Aquatic Science Vol 2 No 1 (2019)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Abstract

Pencemaran pada perairan laut merupakan salah satu permasalahan lingkungan yang disebabkan oleh berbagai macam kegiatan yang menghasilkan limbah. Pencemaran dalam suatu perairan mempunyai hubungan dengan jenis dan jumlah mikroorganisme dalam perairan tersebut. Salah satu kelompok mikroorganisme yang sering digunakan sebagai indikator pencemaran perairan adalah bakteri kelompok Coliform. Penelitian ini bertujuan untuk mengetahui kondisi perairan tersebut dengan mengukur kelimpahan bakteri Coliform di perairan laut Celukanbawang. Penelitian dilakukan pada bulan November 2018 dengan mengambil data dari 3 stasiun penelitian. Pengambilan sampel dilakukan saat musim kemarau dengan 3 kali pengulangan di setiap stasiun. Metode yang digunakan saat pengambilan sampel, yaitu purposive sampling. Parameter kualitas air yang diukur dalam penelitian ini meliputi suhu, pH, salinitas, DO, dan nitrat. Data yang diperoleh kemudian dibandingkan dengan Peraturan Gubernur Bali Nomor 16 Tahun 2016 mengenai Kriteria Baku Mutu Air Laut Untuk Biota Laut dan Baku Mutu Air Laut Untuk Pariwisata dan Rekreasi (Mandi, Renang, dan Selam). Uji kelimpahan Coliform dilakukan dengan metode MPN (Most Probably Number). Hasil penelitian menunjukkan bahwa kelimpahan bakteri Coliform di stasiun 1 berkisar antara 3 MPN/100 ml-93 MPN/100 ml, stasiun 2 berkisar antara 7 MPN/100 ml-93 MPN/100 ml, dan stasiun 3 tidak ditemukan bakteri kelompok Coliform sama sekali. Hasil uji E. coli menunjukkan hasil 0 MPN/100 ml di semua stasiun penelitian. Hal ini mengindikasikan bahwa perairan laut Celukanbawang masih dalam keadaan baik sesuai dengan Pergub No. 16 tahun 2016 tersebut.
Penambahan Tepung Udang Rebon (Krill Meal) Untuk Meningkatkan Pertumbuhan Ikan Maskoki (Carassius auratus). Abrar Ravidhia; Pande Gde Sasmita Julyantoro; I Ketut Wija Negara; Sukarman Sukarman
Current Trends in Aquatic Science Vol 2 No 1 (2019)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh penambahan tepung udang rebon (krill meal) untuk peningkatan pertumbuhan Ikan Maskoki (Carassius auratus). Penelitian yang dilakukan bersifat eksperimental menggunakan Rancangan Acak Lengkap (RAL) dengan 5 perlakuan dan 3 kali ulangan. Perlakuan S0 (kontrol) dilakukan dengan tanpa penambahan tepung udang rebon, sedangkan perlakuan S1, S2, S3, dan S4 masing-masing dilakukan dengan penambahan 5%, 10%, 15%, dan 20% tepung udang rebon (krill meal). Perlakuan dilakukan dengan menambahkan tepung udang rebon (krill meal) pada pembuatan pakan sesuai dengan dosis tiap perlakuan. Pemberian pakan dilakukan 3 kali sehari selama 42 hari pengamatan di Balai Riset Budidaya Ikan Hias Depok. Pengamatan parameter pertumbuhan dilakukan pada awal dan akhir penelitian berupa parameter berat (W mutlak), laju pertumbuhan spesifik, panjang standar (L mutlak), dan efisiensi pemanfaatan. Hasil uji statistik (one way ANOVA) menunjukkan bahwa penggunaan tepung udang rebon (krill meal) berpengaruh nyata terhadap peningkatan pertumbuhan (p<0,05) Ikan Maskoki. Pertumbuhan optimum terdapat pada perlakuan 15% penambahan tepung udang rebon (krill meal) dengan perubahan parameter berat (W mutlak) sebesar 0,58 g, laju pertumbuhan spesifik sebesar 0,44%/hari, panjang standar (L mutlak) sebesar 0,45 cm, dan efisiensi pemanfaatan pakan sebesar 18,37%. Hal ini mengindikasikan bahwa penambahan tepung udang rebon (krill meal) mampu meningkatkan pertumbuhan Ikan Maskoki (Carassius auratus).
Inventarisasi dan Potensi Sosial Ekonomi Ikan yang Didaratkan di PPI Sangsit, Buleleng, Bali Kadek Ira Maresa; I Wayan Restu; Rani Ekawaty
Current Trends in Aquatic Science Vol 2 No 1 (2019)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Abstract

PPI Sangsit is one of the landing bases that is the main supplier of fisheries production, especially in Buleleng Regency. The fish landed at PPI Sangsit comes from the catch of local fishermen and Sepeken Island. Various types of fish landed need an inventory activity with the aim of obtaining valid data to facilitate systematic data collection. Production of fisheries and socio-economic fishermen are also needed to formulate appropriate fisheries management. The study was conducted in February-April 2018. The sample fish was taken by simple random sampling. The results obtained 26 species of fish that were 58% of demersal fishes. Carangsidae, Scrombridae, and Caesionidae families are the family with the most species, which of 12% or 3 species. Production of fresh fish in 2010-2017 tended to decline, while the production of live grouper fish fisheries in 2010-2017 tended to increase. February-April 2018 tended to increase with the highest in March 2018. Comparison of fisheries product in each February, March, and April from 2010 to 2018 tended to decline. The age of all respondents including productive age groups with education classified as low education. Jobs as fisherman, docker, and crew members get the average income included in the middle class, which is Rp 1.500.000 – Rp 2.500.000 per month. Local respondents were include in the category of fisherman owners, small-scale fisherman, and traditional fisherman. Respondent from Sepeken Island belong to the category of labor fisherman, big-scale fihserman, and traditional fisherman

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