Communications: Comparison of Two Methods of Oxygen Supplementation for Enhancing Water Quality in Fish Culture

In aquaculture, constructed wetland (CW) has recently attracted attention for use in effluent purification due to its low running costs, high efficiency and convenient operation,. However, less data are available regarding the long-term efficiency of farm-scale CW for cleaning effluents from inland freshwater fish farms. This study investigated the effectiveness of CW for the removal of nutrients, organic matter, phytoplankton, heavy metals and microbial contaminants in effluents from a blunt snout bream (Megalobrama amblycephala) farm during 2013–2018. In the study, we built a farm-scale vertical subsurface flow CW which connected with a fish pond, and its performance was evaluated during the later stage of fish farming. The results show that CW improved the water quality of the fish culture substantially. This system was effective in the removal of nutrients, with a removal rate of 21.43–47.19% for total phosphorus (TP), 17.66–53.54% for total nitrogen (TN), 32.85–53.36% for NH4+-N, 33.01–53.28% NH3-N, 30.32–56.01% for NO3−-N and 42.75–63.85% for NO2−-N. Meanwhile, the chlorophyll a (Chla) concentration was significantly reduced when the farming water flowed through the CW, with a 49.69–62.01% reduction during 2013–2018. However, the CW system only had a modest effect on the chemical oxygen demand (COD) in the aquaculture effluents. Furthermore, concentrations of copper (Cu) and lead (Pb) were reduced by 39.85% and 55.91%, respectively. A microbial contaminants test showed that the counts of total coliform (TC) and fecal coliform (FC) were reduced by 55.93% and 48.35%, respectively. In addition, the fish in the CW-connected pond showed better growth performance than those in the control pond. These results indicate that CW can effectively reduce the loads of nutrients, phytoplankton, metals, and microbial contaminants in effluents, and improve the water quality of fish ponds. Therefore, the application of CW in intensive fish culture systems may provide an advantageous alternative for achieving environmental sustainability.

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Analisis Kondisi Kualitas Air Pada Budidaya Ikan Kerapu Tikus (Cromileptes altivelis) Di Situbondo [Analysis Of Water Quality Conditions On Humpback Grouper Culture (Cromileptes altivelis) In Situbondo]

Jurnal Ilmiah Perikanan dan Kelautan ◽

10.20473/jipk.v5i1.11414 ◽

2019 ◽

Vol 5 (1) ◽

pp. 1

Author(s):

Ervany Eshmat N, Abdul Manan

Keyword(s):

Water Quality ◽

Dissolved Oxygen ◽

Water Temperature ◽

Economic Value ◽

International Markets ◽

Fish Culture ◽

Quality Analysis ◽

Local Market ◽

Descriptive Method

Abstract The humpback grouper (Cromileptes altivelis) is one of the fishery commodities with high economic value in both local and international markets. The price of humpback grouper can reach Rp. 200,000 - Rp. 400,000 / kilogram in the local market. The humpback grouper is potentially to be developed in most coastal areas of Indonesia. The conditions of water quality have a very important role for the success of fish culture of humpback grouper. To that end, monitoring and management of water quality are necessary in fish culture. The purpose of this case study is to determine the water quality conditions on humpback grouper culture in BBAP, Situbondo. The study was conducted on 16 January until 16 February 2012. The study method use descriptive method. From the results of water quality analysis, the water in humpback grouper broodstock ponds (I1 and I2) is no smell, no colour water, temperature 26.1-30 oC, salinity 27-35 ppt, dissolved oxygen 3.3-3.9 ppm, ammonia levels <0.001-0.22 ppm, nitrite levels 0.0075-0.085 ppm, alkalinity 110-120 ppm and pH 7.94-8.18. The water in humpback grouper hatchery ponds (B1 and B2) is no smell, green colour water, temperature 26.7-29.3 oC, salinity 27-34 ppt, dissolved oxygen 2.7-3.7 ppm, ammonia levels 0.0781-0.28 ppm, nitrite levels 0.0225-3.3305 ppm, alkalinity 94-126 ppm, and pH 7.14-7.81.

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Immobilized microalga Scenedesmus quadricauda (Chlorophyta, Chlorococcales) for long-term storage and for application for water quality control in fish culture

Aquaculture ◽

10.1016/s0044-8486(00)00540-8 ◽

2001 ◽

Vol 195 (1-2) ◽

pp. 71-80 ◽

Cited By ~ 48

Author(s):

Yean-Chang Chen

Keyword(s):

Water Quality ◽

Quality Control ◽

Scenedesmus Quadricauda ◽

Fish Culture ◽

Water Quality Control ◽

Long Term Storage ◽

Term Storage

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Surface water quality and intensive fish culture

Archives of Polish Fisheries ◽

10.2478/aopf-2013-0007 ◽

2013 ◽

Vol 21 (2) ◽

Cited By ~ 6

Author(s):

M. Teodorowicz

Keyword(s):

Water Quality ◽

Surface Water ◽

Surface Water Quality ◽

Fish Culture ◽

Intensive Fish Culture

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A remote wireless system for water quality online monitoring in intensive fish culture

Computers and Electronics in Agriculture ◽

10.1016/j.compag.2009.10.004 ◽

2010 ◽

Vol 71 ◽

pp. S3-S9 ◽

Cited By ~ 58

Author(s):

Xiuna Zhu ◽

Daoliang Li ◽

Dongxian He ◽

Jianqin Wang ◽

Daokun Ma ◽

...

Keyword(s):

Water Quality ◽

Online Monitoring ◽

Fish Culture ◽

Wireless System ◽

Intensive Fish Culture

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Water quality fluctuations under floating net cages for fish culture in Lake Cirata and its impact on fish survival

Fisheries Science ◽

10.1111/j.1444-2906.2005.01053.x ◽

2005 ◽

Vol 71 (5) ◽

pp. 972-977 ◽

Cited By ~ 6

Author(s):

Irzal EFFENDIE ◽

Kukuh NIRMALA ◽

Umar HASAN SAPUTRA ◽

Agus Oman SUDRAJAT ◽

Muhammad ZAIRIN ◽

...

Keyword(s):

Water Quality ◽

Fish Culture ◽

Net Cages ◽

Fish Survival

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Advances in Fisheries Bioengineering

Advances in Fisheries Bioengineering ◽

10.47886/9781934874028.ch6 ◽

2008 ◽

Keyword(s):

Water Quality ◽

Quality Parameters ◽

Aeromonas Salmonicida ◽

Fish Culture ◽

Water Filtration ◽

Culturable Bacteria ◽

Yersinia Ruckeri ◽

Creek Water ◽

Before And After ◽

The U.S

Abstract.—A water filtration and ozonation system was recently installed to treat creek water used to culture species of concern at the U.S. Fish and Wildlife Service’s Northeast Fishery Center, Lamar National Fish Hatchery (NFH). Past experience with fish culture indicates that the following bacterial pathogens are endemic to the creek water supply: Aeromonas salmonicida, Yersinia ruckeri, Flavobacterium columnaris, and Flavobacterium psychrophilia. Water samples were collected from sites located before and after filtration and ozonation and examined for culturable bacteria. Variable operation of the filtration/ozonation system was used to examine (1) the effect of microscreen filtration (i.e., using drum filters containing 37-μm sieve panels) on ozone inactivation of bacterial microorganisms, (2) the effect of dissolved ozone contact times on inactivation of bacterial microorganisms, and (3) the effect of water quality fluctuations on the dissolved ozone demand measured during the course of these tests. Inactivation exceeded 98% for all bacteria when ozone C*t values were about 1.0 and reached 100% at 21.3, regardless of water quality parameters or implementation of microscreen filtration. These results indicate that the use of ozonation to treat surface water supplies used for fish culture facilities will effectively inactivate the majority of bacteria entering the system and will likely serve to prevent introduction of bacteria that can be pathogenic to fish.

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