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  Subjects -> WATER RESOURCES (Total: 161 journals)
Showing 1 - 47 of 47 Journals sorted alphabetically
Acque Sotterranee - Italian Journal of Groundwater     Open Access   (Followers: 1)
ACS ES&T Water     Hybrid Journal  
Advances in Limnology     Full-text available via subscription   (Followers: 2)
Advances in Oceanography and Limnology     Open Access   (Followers: 13)
Advances in Water Resource and Protection     Open Access   (Followers: 8)
Advances in Water Resources     Hybrid Journal   (Followers: 59)
African Journal of Aquatic Science     Hybrid Journal   (Followers: 17)
Agricultural Water Management     Hybrid Journal   (Followers: 50)
Agua y Territorio     Open Access   (Followers: 2)
Águas Subterrâneas     Open Access   (Followers: 1)
altlastenforum Baden-Württemberg e.V., Schriftenreihe     Full-text available via subscription   (Followers: 3)
American Journal of Water Resources     Open Access   (Followers: 10)
American Water Works Association     Hybrid Journal   (Followers: 23)
Anales de Hidrología Médica     Open Access   (Followers: 1)
Annual Review of Marine Science     Full-text available via subscription   (Followers: 12)
Applied Water Science     Open Access   (Followers: 8)
Aquacultural Engineering     Hybrid Journal   (Followers: 7)
Aquaculture     Hybrid Journal   (Followers: 31)
Aquaculture and Fisheries     Open Access   (Followers: 6)
Aquaculture Environment Interactions     Open Access   (Followers: 6)
Aquaculture Research     Hybrid Journal   (Followers: 30)
Aquaculture, Fish and Fisheries     Open Access  
Aquasains     Open Access  
Aquatic Conservation Marine and Freshwater Ecosystems     Hybrid Journal   (Followers: 44)
Aquatic Geochemistry     Hybrid Journal   (Followers: 3)
Aquatic Living Resources     Hybrid Journal   (Followers: 11)
Aquatic Science and Technology     Open Access   (Followers: 2)
Aquatic Sciences     Hybrid Journal   (Followers: 15)
Aquatic Sciences and Engineering     Open Access  
Asian Journal of Rural Development     Open Access   (Followers: 9)
Australian Journal of Water Resources     Hybrid Journal   (Followers: 5)
AWWA Water Science     Hybrid Journal   (Followers: 1)
Bonorowo Wetlands     Open Access  
Canadian Water Resources Journal     Hybrid Journal   (Followers: 18)
Civil and Environmental Research     Open Access   (Followers: 14)
CLEAN - Soil, Air, Water     Hybrid Journal   (Followers: 17)
Computational Water, Energy, and Environmental Engineering     Open Access   (Followers: 5)
Cost Effectiveness and Resource Allocation     Open Access   (Followers: 4)
Desalination     Hybrid Journal   (Followers: 14)
Desalination and Water Treatment     Hybrid Journal   (Followers: 10)
Discover Water     Open Access  
e-Jurnal Rekayasa dan Teknologi Budidaya Perairan     Open Access  
Ecological Chemistry and Engineering S     Open Access   (Followers: 2)
Energy Nexus     Open Access  
Environmental and Water Sciences, public Health and Territorial Intelligence Journal     Open Access   (Followers: 1)
Environmental Processes : An International Journal     Hybrid Journal  
Environmental Science : Water Research & Technology     Hybrid Journal   (Followers: 7)
Environmental Toxicology     Hybrid Journal   (Followers: 11)
European journal of water quality - Journal européen d'hydrologie     Full-text available via subscription   (Followers: 5)
Exposure and Health     Hybrid Journal  
Frontiers in Water     Open Access  
GeoHazards     Open Access   (Followers: 2)
Ground Water Monitoring & Remediation     Hybrid Journal   (Followers: 25)
Groundwater for Sustainable Development     Full-text available via subscription   (Followers: 5)
Grundwasser     Hybrid Journal  
Hydrology: Current Research     Open Access   (Followers: 9)
IDA Journal of Desalination and Water Reuse     Hybrid Journal   (Followers: 6)
Ingeniería del agua     Open Access  
Inland Waters     Hybrid Journal  
International Hydrographic Review     Open Access  
International Journal of Climatology     Hybrid Journal   (Followers: 28)
International Journal of Energy and Water Resources     Hybrid Journal  
International Journal of Hydrology Science and Technology     Hybrid Journal   (Followers: 6)
International Journal of Nuclear Desalination     Hybrid Journal   (Followers: 1)
International Journal of River Basin Management     Hybrid Journal  
International Journal of Waste Resources     Open Access   (Followers: 5)
International Journal of Water     Hybrid Journal   (Followers: 14)
International Journal of Water Governance     Open Access   (Followers: 1)
International Journal of Water Resources and Environmental Engineering     Open Access   (Followers: 11)
International Journal of Water Resources Development     Hybrid Journal   (Followers: 22)
International Soil and Water Conservation Research     Open Access   (Followers: 1)
Irrigation and Drainage     Hybrid Journal   (Followers: 12)
Irrigation Science     Hybrid Journal   (Followers: 4)
Journal of Applied Research in Water and Wastewater     Open Access  
Journal of Applied Water Engineering and Research     Hybrid Journal  
Journal of Aquaculture and Fish Health     Open Access   (Followers: 1)
Journal of Aquatic Sciences     Full-text available via subscription   (Followers: 3)
Journal of Coastal and Hydraulic Structures (JCHS)     Open Access   (Followers: 2)
Journal of Contemporary Water Resource & Education     Hybrid Journal   (Followers: 2)
Journal of Delta Urbanism     Open Access   (Followers: 2)
Journal of Ecohydraulics     Hybrid Journal   (Followers: 1)
Journal of Fisheries and Aquatic Science     Open Access   (Followers: 3)
Journal of Geophysical Research : Oceans     Partially Free   (Followers: 60)
Journal of Hydro-environment Research     Full-text available via subscription   (Followers: 13)
Journal of Hydrology (New Zealand)     Full-text available via subscription   (Followers: 5)
Journal of Hydrology and Hydromechanics     Open Access   (Followers: 4)
Journal of Hydrometeorology     Hybrid Journal   (Followers: 10)
Journal of Limnology     Open Access   (Followers: 6)
Journal of Natural Resources and Development     Open Access   (Followers: 2)
Journal of Oceanology and Limnology     Hybrid Journal   (Followers: 3)
Journal of South Carolina Water Resources     Open Access  
Journal of the American Water Resources Association     Hybrid Journal   (Followers: 36)
Journal of Water and Climate Change     Open Access   (Followers: 52)
Journal of Water and Environmental Nanotechnology     Open Access   (Followers: 1)
Journal of Water and Wastewater / Ab va Fazilab     Open Access  
Journal of Water Chemistry and Technology     Hybrid Journal   (Followers: 8)
Journal of Water Process Engineering     Full-text available via subscription   (Followers: 3)
Journal of Water Resource and Protection     Open Access   (Followers: 6)
Journal of Water Resource Engineering and Management     Full-text available via subscription   (Followers: 5)
Journal of Water Resources Planning and Management     Full-text available via subscription   (Followers: 65)
Journal of Water Security     Open Access   (Followers: 6)
Jurnal Enggano     Open Access  
La Houille Blanche     Full-text available via subscription   (Followers: 1)
Lake and Reservoir Management     Hybrid Journal   (Followers: 7)
Lakes & Reservoirs Research & Management     Hybrid Journal   (Followers: 14)
Marine and Freshwater Behaviour and Physiology     Hybrid Journal  
Marine Ecology Progress Series MEPS     Hybrid Journal   (Followers: 34)
Michigan Journal of Sustainability     Open Access   (Followers: 1)
Natural and Engineering Sciences     Open Access  
New Zealand Journal of Marine and Freshwater Research     Hybrid Journal   (Followers: 18)
npj Clean Water     Open Access  
Open Journal of Modern Hydrology     Open Access   (Followers: 5)
Opflow     Full-text available via subscription   (Followers: 1)
Osterreichische Wasser- und Abfallwirtschaft     Hybrid Journal  
Ozone Science & Engineering     Hybrid Journal   (Followers: 2)
Paddy and Water Environment     Hybrid Journal   (Followers: 9)
Research Journal of Environmental Toxicology     Open Access   (Followers: 2)
Reviews in Aquaculture     Hybrid Journal   (Followers: 10)
Revue des sciences de l'eau / Journal of Water Science     Full-text available via subscription   (Followers: 1)
Ribagua : Revista Iberoamericana del Agua     Open Access  
River Research and Applications     Hybrid Journal   (Followers: 16)
San Francisco Estuary and Watershed Science     Open Access  
Sciences Eaux & Territoires : la Revue du Cemagref     Open Access  
Scientia Marina     Open Access   (Followers: 1)
Society & Natural Resources: An International Journal     Hybrid Journal   (Followers: 21)
Soil Studies     Full-text available via subscription   (Followers: 1)
Sri Lanka Journal of Aquatic Sciences     Open Access   (Followers: 1)
Sustainable Water Resources Management     Hybrid Journal   (Followers: 3)
Tecnología y Ciencias del Agua     Open Access  
Texas Water Journal     Open Access   (Followers: 3)
Urban Water Journal     Hybrid Journal   (Followers: 14)
Water     Open Access   (Followers: 10)
Water and Environment Journal     Hybrid Journal   (Followers: 25)
Water Conservation Science and Engineering     Hybrid Journal   (Followers: 1)
Water Cycle     Open Access  
Water Environment and Technology     Hybrid Journal   (Followers: 19)
Water Environment Research     Full-text available via subscription   (Followers: 43)
Water International     Hybrid Journal   (Followers: 19)
Water Research     Hybrid Journal   (Followers: 71)
Water Research X     Open Access   (Followers: 4)
Water Resources     Hybrid Journal   (Followers: 21)
Water Resources and Economics     Hybrid Journal   (Followers: 5)
Water Resources and Industry     Open Access   (Followers: 2)
Water Resources Management     Open Access   (Followers: 46)
Water Resources Research     Full-text available via subscription   (Followers: 91)
Water SA     Open Access   (Followers: 2)
Water Science : The National Water Research Center Journal     Open Access   (Followers: 8)
Water Science and Engineering     Open Access   (Followers: 13)
Water Security     Hybrid Journal   (Followers: 5)
Water, Air, & Soil Pollution     Open Access   (Followers: 21)
Water-Energy Nexus     Open Access   (Followers: 2)
Water21     Full-text available via subscription   (Followers: 2)
Watershed Ecology and the Environment     Open Access  
Western Indian Ocean Journal of Marine Science     Open Access   (Followers: 1)
Wetlands Ecology and Management     Hybrid Journal   (Followers: 20)
wH2O : The Journal of Gender and Water     Open Access  
Wiley Interdisciplinary Reviews : Water     Hybrid Journal  
WMU Journal of Maritime Affairs     Hybrid Journal   (Followers: 3)
World Water Policy     Hybrid Journal  
علوم آب و خاک     Open Access  

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Similar Journals
Journal Cover
Journal of Aquaculture and Fish Health
Number of Followers: 1  

  This is an Open Access Journal Open Access journal
ISSN (Print) 2301-7309 - ISSN (Online) 2528-0864
Published by Universitas Airlangga Homepage  [54 journals]
  • The Performance of Microalgae (Nannochloropsis sp., Tetraselmis sp. and
           Dunaliella sp.) on White Shrimp (Litopenaeus vannamei) Wastewater
           Cultivation Media

    • Authors: Muhammad Browijoyo Santanumurti, Santrika Khanza, Zaenal Abidin, Berta Putri, Siti Hudaidah
      Pages: 1 - 9
      Abstract: Microalgae have an important role in supporting the development of aquaculture because it can be used as natural feed. However, its culture requires an expensive cost because of the nutrient media. To reduce the cost, the media can be replaced by using wastewater from white shrimp (Litopenaeus vannamei) culture. This research was aimed to find out the performance of microalgae (Nannochloropsis sp., Tetraselmis sp. and Dunaliella sp.) cultured on white shrimp wastewater. The performance was measured by the growth, density, and ability to reduce nitrate and phosphate. The experimental design used in this study was a Completely Randomized Design with three treatments and three replications. The treatments were A (Nannochloropsis sp. cultured in white shrimp wastewater), B (Tetraselmis sp. cultured in white shrimp wastewater), and C (Dunaliella sp. cultured in white shrimp wastewater). The density population of Nannochloropsis sp., Tetraselmis sp. and Dunaliella sp. were tested by ANOVA. ANOVA was used to assess the density population of Nannochloropsis sp., Tetraselmis sp., and Dunaliella sp., which was then followed by Duncan's test. The results showed that wastewater from white shrimp aquaculture could be used as a medium culture for Nannochloropsis sp., Tetraselmis sp. and Dunaliella sp. It also maintain good water parameter quality in media. Nannochloropsis sp. was the microalgae that produced the highest density of  34.5 x 104 ind/mL when cultured on waste water from white shrimp culture. Nannochloropsis sp. may also reduce nitrate and phosphate content by up to 76 and 61.37 percent, respectively.
      PubDate: 2021-12-31
      DOI: 10.20473/jafh.v11i1.21345
      Issue No: Vol. 11, No. 1 (2021)
       
  • The Effect of Corn Starch Substitution with Sargassum sp. Starch in Diet
           on Grow-Out of Cultivated Rabbitfish, (Siganus guttatus) in Floating Net
           Cages

    • Authors: Edison Saade, Usman Usman, Haura Ainun Sulaeman, Nursun Marhumatul Jannah
      Pages: 10 - 20
      Abstract: Corn starch is a source of carbohydrates for most cultivated fish, includes rabbitfish as one of the herbivores with high economic value. Therefore, rabbitfish requires cheaper carbohydrate sources to have a profitable business in its cultivation. This study was aimed to determine the substitution of corn starch with Sargassum sp. starch in the diet on the growth, relative feed intake, FCR and nutrient retention of rabbitfish. The average weight of rabbitfish used was 51.76±0.12 g/fish. Rabbitfish were cultivated in small net cages (1x1x1.5m) with a stocking density of 20 fish/net cage for 90 days reared. This study used an experimental method with a Completely Randomized Design (CRD). Corn starch (CM) substitution with Sargassum sp. starch (SM) by 0% (A), 21% (B), 42% (C), 63% (D) and 83% (E) used as the treatments with three replicates each. The measured parameters were weight gain (WG), relative growth (RG), relative feed intake (RFI), feed conversion ratio (FCR), protein retention (PR), energy retention (ER), and condition factor (CF). Data were analyzed using the analysis of variance (ANOVA) and Tuckey’s test. The results showed that the lowest FCR in treatment A had no significant effect with treatment B but was significantly different from treatments C, D and E. The WG, RG, RP and CF parameters had the same values at all levels of CM substitution with SM, while RFI and FCR increased with the increasing CM substitution by SM. It also indicated that CM in the rabbitfish diet could be substituted with SM by 83%.
      PubDate: 2021-12-31
      DOI: 10.20473/jafh.v11i1.22082
      Issue No: Vol. 11, No. 1 (2021)
       
  • Myrmecodia pendens Bulb Extract in the Lele Dumbo (Clarias gariepinus)
           Feed: Effects on the Growth Performance, Survival, and Blood Indices

    • Authors: Rudy Agung Nugroho, Retno Aryani, Hetty Manurung, Yanti Puspita Sari, Rudianto Rudianto
      Pages: 21 - 36
      Abstract: This feeding experiment was performed to determine the effects of Myrmecodia pendens bulb extract (MBE) supplementation in fish feed on the growth, survival, and hemato-biochemical profile of Clarias gariepinus. A group of fish was fed with 0.25; 0.50; 1.0; 2.0% MBE and compared to control group (without MBE) for 75 days observation. At the end of feeding trial, growth parameters, hematological profile such as red blood cells (RBC), white blood cells (WBC), Hemoglobin (Hb), Hematocrit (Htc), differential leukocyte, blood plasma biochemistry (glucose, total albumin, cholesterol, and triglyceride), the hepatosomatic (HSI) and intestinal somatic index (ISI) were measured. Survival of all fish was also counted every two weeks. Supplementation MBE above 0.25% resulted significantly higher final biomass weight (FBW), body weight gain (BWG), daily weight gain (DWG), and average weekly gain (AWG). Meanwhile, fish group fed dietary MBE above 1.0% had significantly higher specific growth rate (SGR) (3.32±0.15) than other groups. Fish fed 1.0% of MBE also showed better value of feed conversion ratio (FCR) (1.13±0.03), Hb, and HSI compared to others group. Survival, neutrophil, monocyte, and ISI of all groups was not affected by any concentration of MBE supplementation. Dietary MBE above 0.5% enhanced RBC, WBC, Hematocrit, platelet (PLT), lymphocyte, blood plasma biochemistry such as glucose, total albumin, and triglyceride. Cholesterol of fish fed MBE in the diet showed incrementally enhanced. Present finding suggested that 1.0% MBE in the diet of Clarias gariepinus is recommended to enhance growth, survival, and blood profiles
      PubDate: 2021-12-31
      DOI: 10.20473/jafh.v11i1.24416
      Issue No: Vol. 11, No. 1 (2021)
       
  • Study of Phytochemistry and Potential of Endophyte Fungi Extract in
           Avicennia marina Roots as Antioxidants Inhibiting Early Aging

    • Authors: Muhammad Andhika Pratama, Mochammad Agung Seno Pambudi, Eri Bachtiar, Mochamad Rudyansyah Ismail, Yeni Mulyani, Sulastri Arsad, Fiddy Semba Prasetiya
      Pages: 37 - 46
      Abstract: The mangrove plants has long been utilized as traditional medicinal ingredients for treatments of various diseases in favour of bioactive components from its secondary metabolites. Secondary metabolites from mangroves could act as an antioxidant to prevent oxidative stress. Mangrove may contain endophyte fungi in its tissues that are capable of producing secondary metabolites. In theory, endophyte fungi isolated from a plant can produce secondary metabolites similar to those of the original plants or even in relatively high numbers. In this research, mangrove species Avicennia marina was sampled from Blanakan, Subang District, West Java. Endophyte fungi were isolated from the mangrove roots that had been obtained. The experimental method was used to test antioxidant activitiy using DPPH (1,1-diphenyl-2-picrylhidrazyl) method and phytochemical content, with three replicates for each tests. Fungal isolates were coded according to the distance of the roots from the main mangrove tree, namely STAD and STAJ that represents “close” and “far” roots. Our results showed that the enviromental parameters, namely salinity, dissolved oxygen, and temperature meet the quality standards and mangrove life in the tropics. The A. marina type of substrate muddy soil and has a pH value, which did not meet the quality standards for mangrove waters. As for antioxidant activity, both extracts could reduce DPPH free radicals. Further determination of the IC50 value of the two extracts showed that the endophytic fungi STAD and STAJ had IC50 values of 97.8 ppm (classified as strong) and 822.56 ppm (classified as very weak) in the DPPH radical immersion method. Phytochemical test revealed that the two extracts of fungal isolates contain bioactive compounds, where flavonoids and alkaloids were identified in isolate STAD, whereas STAJ was positive for tannins and alkaloids content.
      PubDate: 2021-12-31
      DOI: 10.20473/jafh.v11i1.24502
      Issue No: Vol. 11, No. 1 (2021)
       
  • Survival and Physiological Responses of Greenlip Abalone (Haliotis
           laevigata) under Simulated Live Transport

    • Authors: Frederika Niken Restu Kurnaningtyas, Ishaaq Saputra, Eko Hendri Gunawan
      Pages: 47 - 56
      Abstract: Greenlip abalone (Haliotis laevigata) are high-value marine bivalves. In order to preserve the quality, most of edible aquatic animals were transported in live conditions. In addition, keep the condition at low temperature is considered as the best way to reduce the stress level of the animal. However, this method is still poorly understood in greenlip abalone. The present study examines the effects of pre-cooled (±14 °C) and non-precooled (±21 °C) temperature treatments on survival and physiological responses such as total haemocyte count, phagocytic assay, lysosomal assay, and lactate of live abalone during transport simulation at time intervals of 0, 12, 24, 36 and 48 hours. Results indicated that pre-cooling treatment prior to transport increased the survival rate and minimised weight loss. The lactate levels were significantly higher in the abalones that were not cooled prior to transport.  Both animals that were pre-cooled and those that were not cooled prior to aerial transport simulation showed increases in total haemocyte count and a decrease in phagocytic activity, which indicates that live transport has an impact on their immunity. The present study indicated that the importance of pre-cooling treatment before transportation to preserve the condition of live abalone.
      PubDate: 2021-12-31
      DOI: 10.20473/jafh.v11i1.25695
      Issue No: Vol. 11, No. 1 (2021)
       
  • Exploring Aquaculture Fish Production: The Case of South Aceh District

    • Authors: Muti'ah Muti'ah, M. Shabri Abd Majid, Chenny Seftarita
      Pages: 57 - 69
      Abstract: This study empirically explores factors determining the production of fish aquaculture in the South Aceh District, Indonesia. The study selected 150 out 1,893 aquaculture fish farmers within 18 sub-districts in the regency as the study’s respondents using a multi-stage sampling technique. Primary data collected through questionnaires’ distribution were analyzed employing a multiple regression model. The research documented empirical evidence that fish pond area, number of fish farmers, and capital significantly and positively influenced the production of fish aquaculture in the South Aceh Regency. Meanwhile, the number of fish seeds had an insignificant impact on the production of fish aquaculture. These empirical results suggested that in improving aquaculture fish production, fish farmers have to possess an adequate amount of capital, pond area, and the number of workers. Soft loan assistance sourced either from the government or banking institutions, conversion of idle and abandoned lands into fish ponds, and various fisheries capacity building programs is among the strategic steps that require to be taken to extend aquaculture production.
      PubDate: 2021-12-31
      DOI: 10.20473/jafh.v11i1.25887
      Issue No: Vol. 11, No. 1 (2021)
       
  • The Effectiveness Combination of Maggot with Commercial Feed on Growth,
           Structure of Intestine and Skeletal Muscle Mutiara Catfish

    • Authors: Haris Setiawan, Ichsan Luqmana Indra Putra, Ridwan Alfatah, Akhmad Nizzar Nasikhudin
      Pages: 70 - 80
      Abstract: Maggot (Black soldier fly larvae) as an alternative source of protein on feed can increase fish productivity. The research aims to study maggot flour as an alternative source of protein in feed on the growth, structure of the intestine organs and skeletal muscles of Mutiara catfish (Clarias gariepinus Burchell, 1822). The research used 144 Mutiara catfish that were kept for 21 days. The research used a completely randomized design consisting of 4 groups, namely 0% maggot in feed (Control), 25% maggot in feed (P1), 50% maggot in feed (P2), 75% maggot in feed (P3). The parameters consist of the growth, the structure of intestine and skeletal muscle of Mutiara catfish. Growth observations consist of measurements of the absolute length and weight of the fish. Intestine observations consisted of length and weight, as well as tissue structure consisting of villi height, crypt depth, villi / crypt ratio and villi area area. Skeletal muscle observations consist of muscle weight and tissue structure consisting of the diameter and area of muscle fibers. Data analysis was performed with one-way anova, followed by the Duncan Test. The results showed that 75% maggot feed gave significant results on absolute weight, structure of intestine and muscle organs compared to other treatments (P <0.05). The absolute length did not provide a significant difference between treatments (P> 0.05). The conclusion shows that 75% maggot feed can be used as an alternative source of feed protein because it can increase the growth, structure of the intestine organs and skeletal muscles of the Mutiara catfish.
      PubDate: 2021-12-31
      DOI: 10.20473/jafh.v11i1.26063
      Issue No: Vol. 11, No. 1 (2021)
       
  • Detection of Polychlorinated Biphenyls in the Atlantic Mackerel (Scomber
           scrombus) Sourced from Cold Storage in Benin City, Nigeria

    • Authors: Oiseoje M. Wangboje, Ruth Idemudia
      Pages: 81 - 89
      Abstract: The aim of this study was to determine the PCB levels in the Atlantic Mackerel (Scomber scrombus) sourced from cold storage points in Benin City, Nigeria by GC analysis and its suitability for human consumption. The PCB concentrations (mg/kg) in S. scombrus ranged from 0.0183 for PCB 114 to 0.5542 for PCB 126 with a recorded total of 0.991 while the mean concentrations (mg/kg) of PCBs in S. scombrus by cold storage point ranged from 0.0111 for PCB 114 to 0.684 for PCB 126 both at the New Benin points, with no observed significant difference (P>0.05) in the mean concentrations of PCBs 126, 156 and 180 in fish between these points. The mean concentration (mg/kg) of PCBs in S. scombrus by month peaked in June with a value of 0.615 for PCB 126. However, there was no observed significant difference (P>0.05) in the mean concentrations of PCBs 114, 118, 138, 153, 156 and 180 in fish specimens between months. Essentially, data from the study revealed that the experimental fish species are suitable to eat by the consuming public as there was no glaring indication of immediate health hazard.

      PubDate: 2021-12-31
      DOI: 10.20473/jafh.v11i1.26483
      Issue No: Vol. 11, No. 1 (2021)
       
  • The Growth of Tilapia (Oreochromis niloticus) with the Addition of
           Probiotics to Feed in Sakatiga Village, Indralaya District, Ogan Ilir
           Regency, South Sumatera

    • Authors: Veronika Oktavia Br Sinaga, Retno Cahya Mukti
      Pages: 90 - 96
      Abstract: Feed is a source of energy to support the growth and survival of fish. To increase feed consumption to the maximum, it is necessary to add an intake to fish feed to increase the digestibility of fish to feed. One alternative that can be done is by adding (supplements) to the feed. Probiotics are an alternative that can be used as a supplement to aquaculture fish feed. The purpose of this field practice is to determine the effect of adding probiotics on the growth of tilapia. This field practice was carried out in August - October 2020 in Sakatiga Village, Indralaya District, Ogan Ilir Regency, South Sumatera. In infield practice, there were two treatments, namely P0: control (without the addition of probiotics) and P1: treatment with the addition of probiotic EM4 at a dose of 15 ml/kg. The container used is a waring placed in a concrete tub. The stages of the implementation of this field practice start from the preparation of containers, adding probiotics to feed, raising tilapia, and collecting data. The parameters observed were fish growth (length and absolute weight), specific growth rate, feed conversion (FCR), fish survival, and water quality (temperature and pH). The results showed that the results of the P1 treatment gave better results than the P0 treatment, the absolute length growth of 3.71 cm, the absolute weight growth of 6.10 g, the specific growth rate of 5.15% / day, the FCR of 0.74, and survival of 90%. The water quality in both treatments during maintenance was included in the normal standard for tilapia as the temperature of 27.5 - 29.8 °C and pH of 6.7 - 8.4. The addition of probiotics can be proposed as an effort to increase the production of tilapia aquaculture.
      PubDate: 2021-12-31
      DOI: 10.20473/jafh.v11i1.26741
      Issue No: Vol. 11, No. 1 (2021)
       
  • Application of Cockle (Anadara granosa) Shell Waste as an Adsorbent of
           Heavy Metal Cadmium (Cd), Copper (Cu), and Lead (Pb)

    • Authors: Akbar Falah Tantri, Mirni Lamid, Sugijanto Sugijanto
      Pages: 97 - 105
      Abstract: Heavy metal is one of the water pollutants that are harmful to the environment and humans. Cockle (Anadara granosa) is only used for meat so that the shells become waste that pollutes the environment. This study examines the ability of cockle shell powder as an adsorbent in the process of adsorption of heavy metals cadmium (Cd), copper (Cu), and lead (Pb). The ability of the adsorbent was tested through the batch method, using a glass beaker (100 ml) at a speed of 90 rpm; initial metal concentration 20 ppm; adsorbent weighing 0.1 – 0.5 grams; contact time of 20 minutes and 30 minutes. The results showed that the adsorbent weighing 0.5 grams can reduce > 75% concentration of cadmium (Cd), copper (Cu), and lead (Pb). Freundlich and Langmuir adsorption isotherms of cadmium (Cd), copper (Cu), and lead (Pb) had R2 > 0.9. 
      PubDate: 2021-12-31
      DOI: 10.20473/jafh.v11i1.26916
      Issue No: Vol. 11, No. 1 (2021)
       
  • The Effectiveness of Curcuma zedoaria Extract in Enhancing Non Spesific
           Immune Responses of Tiger Grouper (Epinephelus fuscoguttatus)

    • Authors: Agus Putra A. Samad, Eva Ayuzar, Ilhamdi Ilhamdi, Muhammad Hatta
      Pages: 106 - 114
      Abstract: The present study was conducted to determine the effect of using turmeric extract (Curcuma zedoaria) on non specific immune of grouper (Epinephelus fuscoguttatus). During the study, fish were fed a diet containing 0, 0.5, 1.0, 2.5 g extract/kg feed twice a day for 14 days. Observations of non-specific immune parameters such as respiratory burst activity, chemiluminescent response, phagocytic activity, superoxidase dismutase (SOD) and lysozyme activity were sampled at 0, 1, 2, 4, 7 and 14 days. The results showed that fish fed C. zedoaria with 0.5 g/kg feed affected non-specific immune responses, and showed significant effect in the short term. On contrary, for long-term administration causes a decrease and inhibition of non-specific cellular defense activity. Thus, this study concluded that the administration of turmeric extract added to the feed can act as an immunostimulant and increase the non-specific immune response in grouper (E. fuscoguttatus).

      PubDate: 2021-12-31
      DOI: 10.20473/jafh.v11i1.27530
      Issue No: Vol. 11, No. 1 (2021)
       
  • Growth Performance of African Catfish Clarias gariepinus (Burchell, 1822)
           Fed with Varying Inclusion Levels of Watermelon (Citrullus lanatus) Bark

    • Authors: Patrick Ozovehe Samuel, Paul Ozovehe Sadiq, Adesola V. Ayanwale, Adamu Z. Mohammed, Victoria Victoria, I. Chukwuemeka
      Pages: 115 - 124
      Abstract: The cost incurred in raising fish to table size in fish farming has been a major issue both to the farmers and the consumers at large. To address this concern this study assessed the growth performance of Clarias gariepinus fed varying inclusion levels of water melon (Citrullus lanatus) bark. A total of 120 samples with 0.75±0.209g mean weight and 3.9±0.31cm mean total length were acclimated in the laboratory for a period of 14 days during which they were fed to satiation twice daily. Subsequently, they were randomly assigned to the five treatments diets with replicate in each case at 12 fish per treatment; T1 with 00%, T2 with 25%,  T3 with 50%, T4 with 75% and T5 with 100% levels of inclusion as possible replacement for equal weight of soybeans. The set-up ran for 12 weeks and the growth parameters (lengths and weight) were determined on weekly basis. Weight gain and specific growth rate were calculated. The physico-chemical parameters of the test media were also determined on weekly basis according to standard methods. The data generated were subjected to one way analysis of variance. From the results: Treatments with 50% and 75% inclusion levels performed slightly better than the control in terms of weight gain. The highest weight obtained in T2 and T3 were 31.71±0.35g and 31.48±1.71g, respectively. Similarly, the optimum requirement of watermelon bark level in the formulation of practical diets for improved growth of C. garienpinus were 50% and 75% in terms of lengths. T2 and T3 had the highest total lengths with 19.05±0.35cmand 15.90±2.80cm, respectively; while the standard lengths in T2 and T3 were 13.50±0.35cmand 13.45±2.85, respectively. Hence, water melon bark can replace the more expensive soybean thereby reducing cost of production and curtail environmental filth and disposal problems associated with watermelon bark waste in Nigeria.
      PubDate: 2021-12-31
      DOI: 10.20473/jafh.v11i1.28535
      Issue No: Vol. 11, No. 1 (2021)
       
  • Physical Abnormalities of Olive Flounder (Paralichthys olivaceus) Juvenile
           Found During Sorting Process in Anmyeon, South Korea

    • Authors: Victor David Nico Gultom
      Pages: 125 - 134
      Abstract: Olive flounder (Paralichthys olivaceus) is the most popular consumption fish in South Korea. Korean consumes flounder as sashimi, spicy soup, stew and cutlet. Due to its popularity; Korean considers Olive flounder as the nation’s raw fish. Despite advanced aquaculture technique, modern facilities and massive production, fingerling size grading and abnormal sorting are conducted by traditional method. This study was conducted by observation. A group of 5 to 6 person worked meticulously to sort out abnormal fingerling and juvenile. Sorting is based on physical traits such as the shape and structure of head, jaw, operculum, fin, body; body coloration, pigmentation and length. Due to the exclusiveness and technicality of this profession, information and standard in grading and sorting has been lacking. This research provides the information about sorting criteria of Olive flounder juvenile and detail description of physical abnormalities being sorted out.
      PubDate: 2021-12-31
      DOI: 10.20473/jafh.v11i1.29069
      Issue No: Vol. 11, No. 1 (2021)
       
  • Production Performance of Super Intensive Vannamei Shrimp Litopenaeus
           vannamei at PT. Sumbawa Sukses Lestari Aquaculture, West Nusa Tenggara

    • Authors: Rifqah Pratiwi, I Nyoman Sudiarsa, Pieter Amalo, Yusuf Widyananda Wiarso Utomo
      Pages: 135 - 144
      Abstract: Vannamei shrimp (Litopenaeus vannamei) is one of the leading fishery commodities that have high economic value. If the process is implemented properly, shrimp production with a super intensive system becomes a profitable future of the aquaculture orientation. This study aims to examine the production process and product performance of super- intensive system vannamei shrimp on an industrial scale. This research method is a case study that includes observation, interviews, and directly follows the production process of shrimp on an industrial scale, without experimental design. The production process includes ponds preparation, media preparation, seed selection and stocking, management of feed and water quality, monitoring of pests and disease, monitoring of growth, and harvest. The treatment given was the application of Bacillus sp. as probiotics on rearing media to optimize shrimp growth. This study showed after 100 days of rearing resulted in SR 71%; biomass 8.96 tons; harvest size 45 – 32; ABW 22 g/tail; ADG 0.4 g/day; and FCR 1.6. Water quality was still in the optimal ranges to support of shrimp growth, includes: temperatures 27 – 31oC; brightness 14 – 120 cm; pH 7.4 – 8.6; salinity 33 – 34 mg/L; dissolved oxygen 3.8 – 5.5 mg/L; alkalinity 100 – 360 mg/L; TOM 40 – 103 mg/L; and nitrite 0.05 – 27.5 mg/L. The production process of vannamei shrimp on an industrial scale with a super intensive system that is applied by PT. Sumbawa Sukses Lestari Aquaculture, West Nusa Tenggara shows optimal growth and yields.
      PubDate: 2021-12-31
      DOI: 10.20473/jafh.v11i1.21143
      Issue No: Vol. 11, No. 1 (2021)
       
 
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