Refine by
Fish Mortality Articles & Analysis
51 articles found
Aquaculture: Steady dissolved oxygen supports healthy and productive aquatic environments, reducing stress and mortality in fish. Food Processing: Wastewater with high organic loads benefits from efficient contaminant removal, lowering treatment expenses. ...
They generate ultra-small bubbles that stay suspended longer, achieving higher dissolution and longer DO retention while lowering energy consumption.Benefits of Advanced DO SystemsBetter oxygen transfer through increased surface area from micro and nano bubbles.Reduced fish stress with stable DO and avoidance of rapid DO drops.Improved growth rates due to healthier, better-fed ...
When the days get warmer in spring and summer, the risk of blue-green algae, or cyanobacteria, increases. The growth of blue-green algae is a sign that the water quality is declining: there are more nutrients such as nitrogen and phosphorus in the water on which these bacteria thrive. Many species of blue-green algae produce toxic substances that are harmful to humans and ...
Measuring equipment for water quality is becoming increasingly advanced. Some meters can be equipped with up to 13 different sensors. But is it always necessary to measure so many? Which parameters should you investigate in which situation? In this article we will examine various water problems and their corresponding parameters. When measuring water quality, it is first important to determine ...
Real-Time Data, Real-Time Control Deploying an Aquasend Beacon® is a great first step toward taking control of the water quality in aquafarm ponds and, by extension, the health of the fish. In order to have a successful farm you have to protect your most important asset: your water quality. Designed for outdoor aquafarm pond use, the Beacon measures dissolved oxygen (DO) and temperature (T), the ...
ByAquasend
So far, two hundred local aquaculture operations have set up small farms in the lake, producing about 32,000 tons of fish per year. But mortality is high. Aquaculture is in an early stage in this remote location. ...
Harmful algal blooms, also known as HABs, are a growing environmental problem around the world. These blooms occur when certain types of algae grow out of control, often as a result of excess nutrients in the water. While some algae are essential for aquatic ecosystems, HABs can be harmful to humans and marine life. They can cause respiratory issues, skin irritation, and other health problems in ...
Fish farming is a specific form of Aquaculture in which fish are bred in enclosures, known as ‘Aquafarms’, to be sold as food. ...
There is a specific science behind feeding schedules. Depending on the species of fish, even the time of day the fish are fed can influence the success of high stocking densities. ...
ByAquasend
Tilapia is not as sensitive as the other fish but when the oxygen is low in the morning, it may kill the whole tank--it could be just a 100lb of fish for small tank or could be 50,000 lbs of fish or more..... In one of the farm, they lost all fish in the farm, ok before they sleep, all fish dead when they wake ...
ByAquasend
This study described growth, mortality, recruitment patterns and exploitation rates of 15 fish species in Grand-Lahou lagoon (Côte d’Ivoire). ...
Beaches are covered with thousands of dead fish. More than 260 tons of marine life washed ashore, lying breathless across 150 miles. It’s not a war zone, it’s the horrifying consequence of an algae bloom in Tampa Bay, Florida. In recent years, freshwater lakes, ponds, and many other waterways in the United States have been dealing with an increasing number of harmful algae blooms ...
Chitin is component of several crustacean and insect carapace. It is an energy source for several species which can degrade chitin through special enzymes. Disease control, profilaxis and eradication are based on the use of vaccines and chemiotherapeutical substances. But there are a number of pathologies that have no known cure. There are for example, the case of Piscirichettsiosis in Chilean ...
Overview Tom Killingbeck of Arcadis recently put his problem-solving expertise to use devising a simple but effective water quality monitoring solution for an Ontario fish hatchery operated by a mining company. Challenge Since the discovery of high concentrations of nickel-ore during railway construction in 1883, mining has been a primary economic driver for the Sudbury region of Ontario, ...
Algal blooms have been hitting the headlines with alarming regularity over recent years. The reason for this is simple: their effects can be devastating. The Florida bloom is proving damaging in the US, with reports of fish kills along the coast, and residents forced to evacuate. However, you may not know that algae blooms are occurring all over the US and spreading across its borders. They are ...
The sixth installment in the series “Happy Fish - How Aquaculture Operators are Growing Better Fish.” A curious question that we have been asking is a concept that we’re thinking about in regards to fish – can fish be happy or show signs of happiness? Both RAS systems and Net Pen operations aim to raise the best and highest quality fish to fetch the greatest market value. ...
In Argentina, green-blue algae have made their appearance in various lakes and lagoons. Not only do they smell bad – they hamper the growth of aquatic plants, threaten marine life, and cause health issues in humans due to the release of cyanotoxins. Besides, excess blooms also affect local fishing and touristic ...
Fish jacuzzis can improve the lives of both salmon and farmers, and they work well with efforts to get rid of sea lice. Water quality matters to us all, though for farmed salmon it is a matter of life and death. Unlike other fish species that have evolved to inhabit slow-running or stagnant water, salmon simply cannot and will not tolerate poor water quality. It affects their growth, their ...
Blooming of (toxic) algae is a global problem that increases each year due to pollution and climate change. In order to restore our aquatic ecosystems, actions must be taken that address excess algal growth. Over the past years, innovations around lake restoration and algal bloom remediation have been introduced and tested. One of these methods is the use of interactive systems that control ...
Plastic fish pond liners are often HDPE geomembrane liners which have low permeability coefficient, anti-permeability and isolation performance, so plastic fish pond liners are widely used in aquaculture water DAMS, highways, railways, airports, tunnels, chemical mining, landfill and other fields. ...