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  Subjects -> WATER RESOURCES (Total: 160 journals)
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Aquasains
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  This is an Open Access Journal Open Access journal
ISSN (Print) 2301-816X - ISSN (Online) 2579-7638
Published by Universitas Lampung Homepage  [7 journals]
  • DIGITAL MARKETING OF FISHERY PRODUCTS, MARKETING STRATEGY DURING THE
           COVID-19 PANDEMIC

    • Authors: Nurhuda Annaastasia, Desi Sriwulan, Wa Jali, Abdul Sarifin
      Pages: 1141 - 1148
      Abstract: The development of technology affects people's lifestyles, especially in meeting their daily needs. This is what underlies business actors starting to look at digital marketing marketing. This study aims to determine the marketing strategy of processed fishery products using digital marketing during the Covid-19 pandemic. This research was conducted from June to September 2021 in Kendari City. The results of the study show that there is a relationship between the application of digital marketing with sales volume and marketing strategies by utilizing more than one digital by providing an attractive appearance for consumers.
      PubDate: 2022-04-01
      DOI: 10.23960/aqs.v10i2.p1141-1148
      Issue No: Vol. 11, No. 1 (2022)
       
  • PRELIMINARY STUDY OF FISH DIVERSITY IN PABEAN BAY, INDRAMAYU

    • Authors: Eda Putri Santi, Emmanuel Manangkalangi, M F Rahardjo
      Pages: 1149 - 1158
      Abstract: Pabean Bay is an estuary waters in which salinity fluctuations occur. This fluctuation requires that the fish living in this location have the ability to adapt. This research is a preliminary study that aims to identify the diversity of fish species in these waters. The study was conducted from January to June 2015 with sampling at intervals of one month. Fishing was carried out at three stations, namely the inside which is the estuary of the river, the middle part and the outside of the estuary to get a representative sample. The fishing gear used are sero, and trammel nets. During the study, it was found that 78 species of fish were included in 39 families. The number of species in each sampling varies. Among the fish found were mainly the family Gobiidae (10 species) and the Family Leiognathidae, Lutjanidae, Sciaenidae and Tetraodontidae (four species each). Several fish species were found in the larval, juvenile and adult stages, and these conditions illustrate the importance of estuaries in the survival of the fish life cycle.
      PubDate: 2022-11-05
      DOI: 10.23960/aqs.v11i1.p1149 - 1158
      Issue No: Vol. 11, No. 1 (2022)
       
  • THE COMPOSITION TEST OF TILAPIA FEED (Oreochromis niloticus) WITH ADDITION
           OF FLOUR E. cottonii FERMENTED USING TAPE YEAST AND EM-4

    • Authors: Nita Annisah Al Barru, Nita Salnida Dewi, Dewi Putri Lestari
      Pages: 1159 - 1166
      Abstract: This study attempts to analyze the growth of tilapia feed with additional flour E. cottonii fermented with a combination of tape yeast and EM4. This study used a Completely Randomized Design (CRD) with 4 treatment and 3 replications which is P1 (control/0% fermented E. cottoni flour), P2 (4% fermented E. cottoni flour), P3 (8% fermented E. cottoni flour), and P4 (12% fermented E. cottoni flour). Fish maintenance done for 50 days. The observed parameters were absolute growth rate, absolute length growth, specific growth rate, feed efficiency, feed convertion ratio, survival rate and water quality. Data were analyzed using Analysis of Variance (ANOVA) within 95% of trust. The result showed that there is no significant different on the growth, feed efficiency, feed convertion ratio, and survival rate but could potentially be an alternative feed raw materials because it is still capable of producing the same results with control feed.
      PubDate: 2022-11-05
      DOI: 10.23960/aqs.v11i1.p%p
      Issue No: Vol. 11, No. 1 (2022)
       
  • ANALYSIS OF PHOTOCHEMICAL PROFILE AND ENDOSYMBION BIOMASS OF CORAL
           Symbiodinium sp

    • Authors: Moh Muhaemin, Henky Mayaguezz, Anma Hari Kusuma, Wike Ayu Eka Putri
      Pages: 1167 - 1178
      Abstract: Coral reefs are important ecosystems with the highest species diversity on earth. Besides its high ecological and economic value, it turns out that coral reefs are facing global climate change. One of the environmental factors affected by the effects of global climate change is the penetration of sunlight that reaches the earth's surface. Symbiodinium as a coral endosymbiont turns out to have an adaptation pattern that is correlated with environmental conditions, especially light. The research focused on the interaction between solar radiation and Symbiodinium and its biochemical profiles, which have an important meaning for coral reef ecology and its recovery when affected by excessive light. In addition, it opens up opportunities for the use of light as a triggering factor for the production of certain biochemical compounds in cells. The micro-habitat conditions in the laboratory are made in such a way that it can provide penetration of light intensity that is at the optimal or extreme threshold for Symbiodinium. The measured light intensity is expected to trigger the process of cellular adaptation and the production of certain biochemical compounds in cells. The results are expected to show that light has a significant effect on changes in the content of biochemical compounds in Symbiodinium biomass. The increase in light intensity is expected to guide cells to increase the concentration of lipids and intracellular fibers.
      PubDate: 2022-11-05
      DOI: 10.23960/aqs.v11i1.p1167 - 1178
      Issue No: Vol. 11, No. 1 (2022)
       
  • BUSINESS PROSPECTS FOR CULTIVATION OF OYSTER (Crassostrea gi-gas) IN
           OKAYAMA, JAPAN

    • Authors: Fairuz Romdhony Desnefa Anwar, Ine Maulina
      Pages: 1179 - 1188
      Abstract: Japan is known as one of  pioneering countries in oyster cultivation. This study aims to reveal the prospects for the cultivation of pacific oysters. The analysis of investment evaluation criteria in this study is based on financial analysis methods which include Benefit-Cost Ratio (BCR), Break Even Point (BEP), Return of Investment ROI, and Payback Period. The process carried out in the oyster cultivation steps starts from spawning and oyster fry, growth control (Yokusei), hanging (Hansuika) and seeding (Tanetsuke), check growth and landing and marketing. Based on the results of data analysis, it is obtained that the values of BCR, BEP, ROI, and Payback Period respectively are 1.88, 1,155.5 kg, 47%/year, 25.6 months. In this analysis, it is obtained that the BCR value is more than 1, so the business prospects for the oyster cultivation are very feasible to do. The benefit of this study is that the description of prospects and the financial analysis presented can be a consideration and reference for people who have an interest in oyster farming, especially for small-scale businesses.
      PubDate: 2022-11-05
      DOI: 10.23960/aqs.v11i1.p1179 - 1188
      Issue No: Vol. 11, No. 1 (2022)
       
  • WATER QUALITY POLLUTION INDEX ANALYSIS IN DOWNSTREAM OF PORONG
           SUB-WATERSHED, JABON DISTRICT, SIDOARJO REGENCY

    • Authors: Hani Kholidah, Moch. Arifin, Bakti Wisnu Widjajani
      Pages: 1189 - 1200
      Abstract: Sungai Porong atau disebut Sub-DAS Porong merupakan bagian dari Sungai Brantas yang telah berubah fungsi sebagai tempat pembuangan lumpur panas Porong. Adanya bencana lumpur ini membuat perubahan yang mempengaruhi kondisi air di sungai, sawah, tambak, dan pemukiman. Penelitian ini bertujuan untuk mengetahui kualitas air dan indeks pencemaran kualitas air pada berbagai jenis penggunaan lahan berdasarkan kondisi di sekitar muara sungai, penelitian ini dilakukan di Porong pada berbagai jenis penggunaan lahan berdasarkan kondisi di sekitar muara sungai. Penelitian ini dilakukan di Sub DAS Porong Hilir, Kecamatan Jabon, Kabupaten Sidoarjo, sedangkan Laboratorium Analisis dilakukan di Laboratorium Ilmu Tanah Fakultas Pertanian dan Laboratorium Teknik Lingkungan UPN “Veteran” Jawa Timur. Penelitian ini menggunakan metode indeks pencemaran kualitas air yang tertuang dalam Peraturan Menteri Lingkungan Hidup No. 115 Tahun 2003. Kualitas air pada DAS mengacu pada Peraturan Pemerintah No. 82 Tahun 2001, sedangkan pengambilan sampel air mengacu pada SNI 6989.57:2008. Nilai indeks pencemaran air menunjukkan bahwa penggunaan lahan termasuk dalam kategori tercemar ringan dengan hasil perhitungan sebesar 0,740 (Kolam), 1,007 (sawah), 1,107 (Sungai Induk), dan 1,461 (Pemukiman). Indeks kualitas air di permukiman sangat berpengaruh, hal ini disebabkan oleh degradasi biologis fungsi lahan. Selain itu, di sungai tersebut terdapat pembuangan limbah domestik dan industri setempat. 2008. Nilai indeks pencemaran air menunjukkan bahwa tata guna lahan termasuk dalam kategori tercemar ringan dengan hasil perhitungan sebesar 0,740 (Kolam), 1,007 (sawah), 1,107 (Sungai Induk), dan 1,461 (Pemukiman). Indeks kualitas air di permukiman sangat berpengaruh, hal ini disebabkan oleh degradasi biologis fungsi lahan. Selain itu, di sungai tersebut terdapat pembuangan limbah domestik dan industri setempat. 2008. Nilai indeks pencemaran air menunjukkan bahwa tata guna lahan termasuk dalam kategori tercemar ringan dengan hasil perhitungan sebesar 0,740 (Kolam), 1,007 (sawah), 1,107 (Sungai Induk), dan 1,461 (Pemukiman). Indeks kualitas air di permukiman sangat berpengaruh, hal ini disebabkan oleh degradasi biologis fungsi lahan. Selain itu, di sungai tersebut terdapat pembuangan limbah domestik dan industri setempat. 
      PubDate: 2022-11-05
      DOI: 10.23960/aqs.v11i1.p1189 - 1200
      Issue No: Vol. 11, No. 1 (2022)
       
  • Analisis Tingkat Kesejahteraan Rumah Tangga Pembudidaya Udang Vannamei di
           Kelurahan Pasie Nan Tigo, Kecamatan Koto Tangah, Kota Padang, Sumatera
           Barat

    • Authors: Muhammad Akbar Hardayu
      First page: 1201
      Abstract: Penelitian ini bertujuan untuk mengetahui besarnya biaya, penerimaan, pendapatan dan tingkat kesejahteraan rumah tangga pembudidaya udang vannamei. Metode yang digunakan dalam penelitian ini adalah metode survei pada pembudidaya udang vannamei di Kelurahan Pasie Nan Tigo, Kecamatan Koto Tangah, Kota Padang, Sumatera Barat. Responden pada penelitian ini ditetapkan secara sensus yaitu sebanyak 10 orang pembudidaya. Analisis data yang digunakan adalah data primer dan data sekunder. Hasil penelitian menunjukkan bahwa biaya rata – rata yang dikeluarkan pembudidaya udang vannamei di Kelurahan Pasie Nan Tigo selama 3 siklus pemeliharaan dalam setahun sebesar Rp. 268.198.500, Penerimaan rata – rata sebesar Rp. 1.280.398.500 per tahun dan Pendapatan rata-rata sebesar Rp. 1.012.200.000 per tahun. Tingkat kesejahteraan rumah tangga pembudidaya udang vannamei rata - rata berada di angka 5,35 yang artinya rumah tangga pembudidaya dikatakan sejahtera karena mempunyai nilai tukar pendapatan rumah tangga pembudidaya lebih dari satu.
      PubDate: 2022-11-05
      DOI: 10.23960/aqs.v11i1.p%p
      Issue No: Vol. 11, No. 1 (2022)
       
  • SET HANDLINE UMPAN TUNA EFEKTIF RAMAH LINGKUNGAN (SHUTER), INOVASI ALAT
           BANTU PENGGANTI PEMBERAT BATU PADA HANDLINE UMPAN TUNA

    • Authors: Mustasim Mustasim, Misbah Sururi, Muh Kasim, M. Ali Ulat, Muhfizar Muhfizar, Muhammad Maskur
      First page: 1209
      Abstract: Tuna bait handline is used to catch small pelagic fish, the catch of which is used as tuna handline bait. Unfortunately, the tools used are natural beach stones, whose presence is dwindling, hard to find and also threatens beach abrasion. The purpose of this study was to find an effective, easy-to-use tool as a substitute for natural stone ballast in the tuna bait handline with the glass pump fishing method. The method used is the experimental method. This research is divided into two stages, namely preliminary research to determine the length of the shutter wire and the main research to determine the ideal weight and its effectiveness on the catch. Preliminary research from July to August 2021, followed by core research, namely testing shutter devices with different weights. (300gr, 400gr and 500gr) were repeated 4 times at FAD Makbon, Kab. Sorong in September 2021. Data analysis used a Completely Randomized Design, and qualitative descriptive to describe the best Shuter construction and the results of testing the effectiveness of the shutter with the fisherman's bait handline. The total fish caught on the three Shuters were 53 fish, with a total weight of 112, 66 kg. The composition of the catch consisted of 53 baby tuna (80,485 kg), 11 salmon (7,687 kg), 7 tuna (22,864 kg), and 3 skipjack tuna (1,630 kg). The length of stainless wire required for Shuter is 80 cm, the ideal Shuter weight and is stable enough to operate in FADs is 300 gr, 400 gr and 500 gr. The response of the fish caught was mostly on Shuter with a length of 80 cm and a weight of 400 gr.
      PubDate: 2022-11-06
      DOI: 10.23960/aqs.v11i1.p%p
      Issue No: Vol. 11, No. 1 (2022)
       
  • The Effect of Different Planting Distances on the Growth of Sargassum sp.
           Cultivated at Bottom-off in Ekas Bay, Jerowaru District, East Lombok
           Regency

    • Authors: Nunik Cokrowati, Baiq Regia Gemara Putri, Baiq Regia Gemara Putri, Andre Rachmat Scabra, Andre Rachmat Scabra
      First page: 1219
      Abstract: Sargassum sp. is brown algae which contain bioactive compounds such as fucoidan and alginate. Alginates are widely used in the medical, food and gelling industries and stabilizers. In laboratory experiments, Fucoidan can be used as anti-inflammatory, anti-tumour, and anti-viral. This study aims to analyse the effect of different spacing on the growth of Sargassum sp. using the baseline method in Ekas Bay, Jerowaru District, East Lombok Regency. The method used is an experimental method using a Completely Randomized Design (CRD) with a cultivated period of 30 days. The results showed the growth of Sargassum sp. The highest was in treatment E (40 cm) with an average absolute growth of 628 g, specific growth of 3.76%, number of leaves 7843, number of fruits 7413, with 90% Alginate yield. The lowest growth value was obtained in treatment A (20 cm) with an absolute growth value of 392 g, specific growth of 2.78%, number of leaves 5084, number of fruits 5610 with an alginate yield of 57% with an initial planting weight of 100 g. The conclusion of this research is the different spacing of the seaweed Sargassum sp. using the baseline method in Ekas Bay, Jerowaru District, East Lombok Regency had a significant effect on absolute growth, specific growth rate, and several leaves but not significant on the number of fruits.
      PubDate: 2022-11-06
      DOI: 10.23960/aqs.v11i1.p%p
      Issue No: Vol. 11, No. 1 (2022)
       
  • Bioconcentration Factors of Heavy Metals Copper (Cu) and Zinc (Zn) in
           Green Mussels (Perna viridis) in the Waters of Tambak Lorok Semarang

    • Authors: Jihan Najla Difa
      First page: 1231
      Abstract: Tambak Lorok is a coastal area in Semarang. These waters have the potential to be contaminated with heavy metals Copper (Cu) and Zinc (Zn). The study aimed to determine the concentration of Cu and Zn in water, sediment and soft tissues of Perna viridis, knowing the effect of shell size on heavy metal absorption, knowing the bioconcetration factors of heavy metals and knowing the maximum limit of weekly consumption of Perna viridis. The study was conducted in November 2020. Determination of the location of the study using the Purposive sampling method.Concentrations of Cu and Zn in water, sediment and Perna viridis by the Atomic Absorption Spectrophotometer method. The results showed the content of Copper in water ranged from 0.06-0.151mg/l; sediments 26.634-38.433 mg/l and green mussels 4.76-11.00mg/l. Heavy metal Zinc is not detected in water, sediment and green shells one factor is that the tools used are insensitive to low concentrations of metals. Based on the results of statistical tests the difference in shell size has no effect on the absorption of  Cu in soft tissues. Bioaccumulation levels belong to the low-moderate category. The safe limit of consumption of green mussels for weight 40 kg is 15.683 mg/weeks and for weight 60 kg is 23.524 mg/weeks.
      PubDate: 2022-11-06
      DOI: 10.23960/aqs.v11i1.p%p
      Issue No: Vol. 11, No. 1 (2022)
       
 
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