fish health Articles

  • The wreck of the MV Rena – culture, risk and resilience in IA

    The wreck of the MV Rena and the subsequent resource consent processes, to enable the dumping and discharging of contaminants through abandoning the remnants of the wreck, created considerable division in the Bay of Plenty region, especially within iwi. Much of this conflict related to the nature of the effects, their monitoring and mitigation. The Rena case provides useful lessons for the impact ...

  • Study: Wastewater treatment improves fish health

    A decade-long study by Canadian researchers concludes that improved water treatment benefits fish populations. University of Waterloo researchers found that within a year after an upgrade to one of the area’s municipal wastewater treatment plants, there was a 70 percent decrease in the occurrence of intersex fish in Ontario’s Grand River. Within three years there was a full recovery ...


    By Fluence Corporation

  • Prevent Fish Kill in the Spring

    Pond Deicing Can Help Prevent Fish Kill Keeping the pond open will help keep oxygen in the water, attract water fowl and help prevent fish kills in the spring. The most common cause of fish kills is suffocation due to lack of dissolved oxygen. Most dissolved oxygen is produced by algae and aquatic plants through photosynthesis. A lesser but also important source of oxygen in water ...


    By Keeton Industries, Inc.

  • Common Fish Diseases and Caused Reasons

    There are literally hundreds of afflictions that can effect the health of farm fish. The most common maladies seen in home aquaculture production are usually either bacterial, parasitic, or viral diseases in origin. Fungal infections are also sometimes seen, and occasionally physical ailments. Common ...


    By Fanway Fish Feed Machinery

  • Fish Farms - Inspections below the surface

    Fish farms are tackling the increased demand for aquatic food, while underwater drones are tackling regular and ongoing inspections to ensure fish health and the integrity of the enclosures. According to the Food and Agriculture Organization of the United Nations, by the year 2050, there will be nearly 2 billion more humans populating the earth. Meaning that we will need to produce ...


    By Deep Trekker Inc.

  • Development of an adaptive monitoring framework for long‐term programs: An example using indicators of fish health

    Detecting unwanted changes associated with localized human activities in aquatic ecosystems requires defining the value of an indicator expected at a site in the absence of development. Ideally, adequate and comparable baseline data will be collected at an exposure location prior to that development, but this is rarely done. Instead, comparisons are made using various designs to overcome the ...


    By John Wiley & Sons, Ltd.

  • Sustainable Soil Health

    “A Nation that destroys its soil destroys itself.” – Franklin D. Roosevelt. We have learned some harsh lessons about how to treat our soil. While most of us are aware of the problems of the past, some agricultural operations in the world are not heeding those lessons. We all know that healthy soil is essential to feed the ever-increasing ...

  • Transgenic fish are ready for us. Are we ready for them?

    After decades of regulatory and legal challenges, AquaBounty aims to bring genetically engineered salmon to U.S. and Canadian markets next year. On a hill above the cold waters around Prince Edward Island, technicians painstakingly create fertilized Atlantic salmon eggs that include growth-enhancing DNA from two other fish species. The eggs will be shipped to ponds in the high rainforest of ...


    By Ensia

  • The effects of surface water abstraction for rice irrigation on floodplain fish production in Bangladesh

    Abstraction of surface water for irrigation poses a serious threat to the sustainability of floodplain fisheries in Bangladesh. Previous fisheries research has accorded a central role to dry-season (Rabi) water maintenance in safeguarding the health of the fishery, but rice irrigation water abstraction dries up water bodies at a rapid rate. Having reviewed various aspects of this water ...


    By Inderscience Publishers

  • Assessing The Health of Marine Ecosystems Through Fisheries Data

    Ecosystem Health Assessment (EHA) started to be applied in environmental management in the late 80s. Since then, a considerable number of ecological indicators have been applied for EHA. Jørgensen et al. (2005a) have classified these indicators into eight levels corresponding to: indicators based on specific ...


  • The treatment of (fish) ponds on an environmentally friendly manner with the usage of the LG Sonic case study

    Aquaculture, or aqua farming, is the cultivation of aquatic organisms, such as fish or shrimps, in a controlled environment. Where this happens in a closed water container, algae may occur that pollute the water and may damage the organisms grown. Many of the traditional methods to fight algae are either insufficient, cumbersome, environmentally unfriendly, or all of these. LG Sonic uses ...


    By LG Sonic

  • The Effect of Creosote on Vitellogenin Production in Rainbow Trout (Oncorhynchus mykiss)

    Abstract  As part of a broader investigation into the effects of creosote treatments on the aquatic biota in pond microcosms, we examined the possible implications for vitellogenin (Vtg) production in Oncorhynchus mykiss [rainbow trout (RT)]. Vtg is the precursor of egg yolk protein and has emerged as a useful biomarker of exposure to estrogenic substances. Our a priori intent was to assess ...


    By Springer

  • Overfishing Threatens Critical Link in the Food Chain

    The fish near the bottom of the aquatic food chain are often overlooked, but they are vital to healthy oceans and estuaries. Collectively known as forage fish, these species—including sardines, anchovies, herrings, and shrimp-like crustaceans called krill—feed on plankton and become food themselves for larger fish, seabirds, and marine mammals. Historically, people have eaten ...


    By Earth Policy Institute

  • CO2 Removal and Stripping Column Ventilation Rate at Bell Aquaculture

    Monitoring and controlling CO2 level in Recirculating Aquaculture Systems (RAS) is crucial not only for fish health but it is used increasingly for efficient management. Under supervision of Steve Summerfelt, a joint project has studied costs savings with optimizing ventilation based on CO2 continuous monitoring. The CO2 probe used in that project came from ...


    By Franatech GmbH

  • Evaluation of butachlor for control of submerged macrophytes along with its impact on biotic components of freshwater system

    The use of pesticides whether herbicides or insecticides is indispensable in modern agriculture technology to control pests or weeds for the production of more food and management of public health, both in developed and developing countries. Today about 4500 pesticides are in general use all over the world, out of which 25 have high toxicity potential to a wide range of flora and fauna of ...


    By University of Tehran

  • U.S. Farm-Raised Finfish and Shellfish

    Seafood has long been recognized as an important component of a healthy diet. Seafood contains high quality, complete protein and an important array of nutrients, while it is low in calories, cholesterol, and saturated fats. The health benefits of omega-3 fatty acids found primarily in fish have been clearly documented. U.S. farm-raised seafood is an important center of the plate choice that can ...


    By Aquacare Environment Inc

  • How to Feed Cichlids Properly

    Cichlids look so beautiful and fascinating, which deserves us to learn how to feed cichlids in aquarium. Here, Fanway provides some cichlids feeding tips to make fish and aquatic plant won healthy and vivacious life. In order to make the aquarium breeding work successful from the start, FANWAY plans ...


    By Fanway Fish Feed Machinery

  • Modern strains put Lake Victoria in critical condition

    Pollution and overfishing in Lake Victoria have become so severe that scientists believe they threaten the health and livelihoods of millions of East Africans.   And researchers in the three countries bordering the ...


    By SciDev.Net

  • Toxicity of forest fire retardant chemicals to stream‐type Chinook salmon undergoing parr–smolt transformation

    Long‐term fire retardants are used to prevent the spread of wildland fires. These products are normally applied by aircraft and are intended specifically for terrestrial application, but fire retardants have entered aquatic habitats by misapplication and/or accidental spills and have resulted in fish mortalities. The authors examined the toxicity of two fire retardant products, PHOS‐CHEK 259F ...


    By John Wiley & Sons, Ltd.

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