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Current Trends in Aquatic Science

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Published by Universitas Udayana

ISSN : 26217368 EISSN : 26217473 DOI : -

Core Subject : Education,

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Search results for , issue "Vol 1 No 1 (2018)" : 16 Documents clear

Akumulasi Logam Berat Seng (Zn) pada Akar dan Daun Lamun Enhalus acoroides di Perairan Pantai Sanur, Bali I Komang Yopi Trio Santana; Pande Gde Sasmita Julyantoro; Ni Putu Putri Wijayanti
Current Trends in Aquatic Science Vol 1 No 1 (2018)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

Penelitian ini bertujuan untuk mengetahui konsentrasi logam berat Zn pada sedimen, akar dan daun lamun Enhalus acoroides serta kemampuannya dalam mengakumulasi dan mentranslokasi logam berat di kawasan perairan Pantai Sanur yang dilaksanakan pada bulan Pebruari 2018. Metode yang digunakan dalam penelitian ini adalah metode deskriptif dengan stasiun pengambilan sampel ditentukan dengan menggunakan metode purposive sampling yang dilakukan pada 3 stasiun. Sampling dalam penelitian ini meliputi sampling kualitas air, pengambilan sampel sedimen, akar dan daun lamun Enhalus acoroides. Pengukuran data kualitas air dilakukan secara insitu sedangkan analisis sampel dilakukan di UPT. Laboratorium Analitik Universitas Udayana dengan menggunakan ICPE-9000. Hasil penelitian menunjukan bahwa kondisi kualitas perairan Pantai Sanur secara umum masih mampu menunjang kehidupan lamun Enhalus acoroides sesuai dengan Pergub Bali No. 16 Tahun 2016 tentang baku mutu lingkungan hidup dan kriteria baku kerusakan lingkungan hidup. Rata-rata kandungan logam berat Zn di akar tertingggi pada stasiun 3 yaitu sebesar 7,09 mg/kg dan terendah pada stasiun 1 sebesar 5,84 mg/kg. Rata-rata kandungan logam berat Zn di daun tertingggi pada stasiun 2 yaitu sebesar 9,07 mg/kg dan terendah pada stasiun 3 yaitu sebesar 7,50 mg/kg. Sedangkan pada sedimen, kandungan logam berat Zn tertinggi pada stasiun 2 dengan nilai 12,27 mg/kg dan terendah pada stasiun 3 dengan nilai 9,47mg/kg. Nilai faktor biokonsentrasi (BCF) menunjukan bahwa daun dan akar lamun Enhalus acoroides dapat mengakumulasi logam berat Zn sebesar 0,78 dan 0,61. Hasil perhitungan translokasi faktor (TF) sebesar 1,28 menunjukan lamun Enhalus acoroides termasuk kategori fitoekstraksi (>1).

Pengaruh Penambahan Bacillus sp. Terhadap Kelulushidupan Pasca Larva Udang Vannamei (Litopenaeus vannamei) Yang Terinfeksi Vibriosis. Yufinta Cahya Permanti; Pande Gde Sasmita Julyantoro; Made Ayu Pratiwi
Current Trends in Aquatic Science Vol 1 No 1 (2018)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

Penelitian ini bertujuan untuk mengetahui pengaruh penambahan bakteri Bacillus sp. terhadap tingkat kelulushidupan pasca larva udang putih Litopenaeus vannamei yang diuji tantang dengan bakteri patogen Vibrio harveyi.Penelitian dilakukan secara eksperimental menggunakan Rancangan AcakLengkap (RAL) dengan 4 perlakuan dan 3 kali ulangan. Perlakuan A (kontrol) yaitu tanpa penambahan bakteri, perlakuan B yaitu dengan penambahan bakteri V. harveyi 106 CFU/ml, perlakuan C ditambahkan bakteri Bacillus sp. 105 CFU/ml, dan perlakuan D dengan penambahan V. harveyi 106 CFU/ml dan bakteri Bacillus sp. 105 CFU/ml pada air kultur. Kelimpahan bakteri dihitung pada akhir penelitian pada media TCBS dan LB Agar untuk mengetahui persistensi bakteri pada air kultur. Seluruh data diuji secara statistik menggunakan One Way Anova kemudian dilanjutkan dengan Uji Tukey. Hasil penelitian menunjukkan bahwa penambahan Bacillus sp. pada udang yang terinfeksi vibriosis (perlakuan D) mampu menghasilkan persentase kelulushidupan sebesar (82.6 ± 2.3)% dan berbeda nyata (p<0,05) dibandingkan dengan tanpa penambahan Bacillus sp. (perlakuan B) yang hanya memiliki persentase kelulushidupan sebesar (49.3 ± 4.6)%. Sedangkan persentase kelulushidupan tertinggi masih didapatkan pada perlakuan A (85,3 ± 4,6)%. Menariknya, penambahan Bacillus sp. pada udang yang tidak terinfeksi vibriosis (perlakuan C) ternyata menghasilkan persentase kelulushidupan yang lebih rendah (69.3 ± 4.6)% daripada kontrol. Hal ini mengindikasikan bahwa penambahan bakteri Bacillus sp. mampu meningkatkan kelulushidupan pasca larva UdangVannamei yang terinfeksi vibriosis.

Keanekaragaman dan Kelimpahan Tumbuhan Air di Subak Pulagan, Tampaksiring, Gianyar, Bali Ni Putu Bella Yuliana Dewi; I Wayan Arthana; Ni Putu Putri Wijayanti
Current Trends in Aquatic Science Vol 1 No 1 (2018)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

This study aimed to determine the diversity, abundance and dominance of aquatic plants, relation to water quality to aquatic plants, and the relation of aquatic biota to aquatic plants. This research used observation and purposive method. The highest abundance value of aquatic plants found in station 1 (upper area) of 4034 ind/m2 with the type of aquatic plant was (Salvinia molesta). The index value of diversity ranged from 0,6628-0,8985, with the highest index found in station 2 (middle) of 0,8985. The dominance index value ranged from 0,4537-0,6127, with the highest dominant index found in station 3 (lower area) with species dominated by (Pistia stratiotes). The relation of aquatic plants with temperature showed correlation value of r = -0,9967 (very strong). The relation with other water quality parameter to aquatic plants showed correlation value which were with pH of r = 0,8263 (very strong), with DO of r = -0,7651 (strong), with nitrate of r = -0,8457 (very strong), and with phosphate of r = 0,7092 (strong). Correlation between abundance of biota Aplocheilus panchax to diversity, abundance, and dominance of aquatic plants showed the highest correlation value respectively of r = 0,6344 (station 1), r = 0,9987 (station 1), and r = -0,5688 (station 3).

Kajian Kelimpahan Mikroplastik di Perairan Teluk Benoa Provinsi Bali Dimas Hafidh Nugroho; I Wayan Restu; Ni Made Ernawati
Current Trends in Aquatic Science Vol 1 No 1 (2018)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

Benoa Bay is one of the water areas with a fairly complex activity, ranging from benoa port activities, watersports tours, as well as activities from residential areas. The activity is thought to contribute to the pollution of marine debris on the bay of Benoa. The purpose of this study is to determine the type and abundance of microplastic contained in the waters of Benoa Bay, Bali. This study was conducted from March to May 2018. Microplastic sampling in water using 200 µm plankton net which was withdrawn for 10 minutes. Method microplastic sampling in sediments using a shovel. The results showed that there are 3 types of microplastic found in water and sediment of Benoa Bay waters are fragment, film, and fiber. The highest microplastic type in the waters comes from the type of fragment with an abundance of 0.26 particles / m³ found at station 3. The highest total microplastic abundance in the waters is present at station 3 with an abundance of 0.58 particles / m³. The highest microplastic type in the sediment comes from the type of fragment with an abundance of 57 particles / kg found at station 1. The highest total microplastic in the sediment abundance is present at station 1 with an abundance of 114 particles / kg.

Uji Tantang Bakteri Vibrio harveyi Pada Pasca Larva Udang Vaname (Litopenaeus vannamei) Ni Putu Tika Lestari; Pande Gde Sasmita Julyantoro; Endang Wulandari Suryaningtyas
Current Trends in Aquatic Science Vol 1 No 1 (2018)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

This research aims to determine the survival of Litopenaeus vannamei post larvae when challenged with various density of pathogenic Vibrio harveyi. The L. vannamei post larvae used in this study was obtained from Vannamei Broodstock Center BPIUUK, Karangasem Bali. This research was conducted for two months, from April to May 2018 in fishery laboratory, Faculty of Marine Science and Fisheries, Udayana University by using complete randomized experimental design with four different V. harveyi density and three times repetitions. The study showed that the higher density of pathogenic V. harveyi resulted on the lower survival of L. vannamei post larvae. The highest density of V. harveyi 107 CFU/mL in treatment D resulted on 53±5.77% post larvae survival, while treatment A as control without addition of V. harveyi was still has survival of 100±0.00% at the end of experiment. The density 105 CFU/mL of V. harveyi (Treatment B) seems able to be tolerated by L. vannamei post larvae since the shrimp was still have high survival at this V. harveyi density. Further both V. harveyi density of 106 CFU/mL and 107 CFU/mL were not able to tolerated by the shrimp post larvae and lead to the high shrimp mortality. Although affected on shrimp survival, addition of V. harveyi have no significant effect to the weight of shrimp post larvae between treatments.

Cover dan Daftar Isi CTAS Vol 1 No 1 (2018) Admin CTAS
Current Trends in Aquatic Science Vol 1 No 1 (2018)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Cover dan Daftar Isi CTAS Vol 1 No 1 (2018)

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