Aquamimicry: A revolutionary concept for shrimp farming

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View of a grow-out shrimp pond implementing the Aquamimicry production approach. Technology has been met with success worldwide by balancing natural plankton. The prevalence of numerous diseases that affect the shrimp and prawn aquaculture industry has promoted the development of various health management strategies. Some include greater biosecurity and sourcing of specific pathogen free animals, and in more extreme cases, using chemicals and antibiotics. However, because of the nature of open pond aquaculture, where most farmed shrimp is produced globally, it is [...]

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Shrimp Behavior 101

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It’s midnight. Do you know where your shrimp are? Rod McNeil knows because he’s underwater watching them with lights! “Lying motionless and silent on the bottom, I watch their approach, and their reaction to me. When they spot me, all their antennae go up. I move toward them, the big shrimp on the leading edge of the troop take a head high posture and keeps an eye on me. I don’t move in any closer than a meter and a half. [...]

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Shrimp Pond Waste Management – Approaches

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Increase in food production from fisheries sector led to introduction of noval technologies and intensive farming methods in shrimp culture that result in increased production of shrimp. Management of water and waste that produced is critical factor that has to be considered. In order to discharge waste water, some improved recirculating systems have been developed. But, the sludge has been neglected and posing a serious problem. So a systematic waste management strategy is needed which include treatment, disposal and [...]

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The importance of iron in aquaculture systems

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Abundant element serves crucial role on many levels Iron is an essential element for bacteria, plants, and animals. Many enzymes important in energy transformations contain iron. Iron forms the center of the hemoglobin molecule important in oxygen transport in the blood of vertebrate and some invertebrate animals. Iron also plays an important role in photosynthesis by plants. Thus, iron plays a role in aquaculture. Iron is the fourth most abundant element in the earth’s crust, but it is present in surface [...]

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Is It Time To Re-examine the Requirements for Shrimp Farm Certification? – Part 1

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The World Wildlife Fund suggested seven indicators – land use, water use, feed conversion ratio (FCR), survival, wild fish inclusion in feeds, dissolved oxygen in receiving waters and energy use – as a means of assessing resource use and negative environmental impacts of aquaculture production facilities. Preliminary results from a survey of shrimp farms in Vietnam and Thailand reveal that these indicators can provide an objective accounting of resource use and negative environmental impacts – including acquisition of the [...]

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AQ1’s—Acoustic Feeding System—Update

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At the World Aquaculture Society Meeting in Las Vegas, Nevada, USA (February 22–26, 2016), I interviewed Attilio Castano, Regis Bador and Ross Dodd—all three very much involved with the development and utilization of the AQ1 System, which records the sounds shrimp make when they feed and then uses those sounds to control and optimize feeding with automatic feeders. Attilio operates a 220-hectare shrimp farm in Ecuador and has been instrumental in the adoption of the AQ1 System in Ecuador, Regis [...]

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Feed tray management lowers FCRs, shrimp production costs in Australia

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Black tiger trials with fewer daily feedings show improved conversion results. In lined, aerated ponds, Penaeus monodon fed four times daily had lower FCRs after one month of a culture cycle. In recent years, shrimp aquaculture costs have increased in every sector. Farmers need to find ways to reduce costs to maintain the profitability of the industry. Currently, one possibility for cost reduction is to manage feed consumption without affecting shrimp growth and total harvest. Growout production costs for raising black tiger [...]

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Massachusetts – John Sackton on EHP

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At the Global Aquaculture Alliance’s GOAL shrimp session in Vancouver, British Columbia, Canada (October 2015), a panel of shrimp experts talked about the microsporidian Enterocytozoon hepatopenaei, a spore-forming fungal parasite, and how it might affect the global shrimp supply.  John Sackton, Editor and Publisher at Seafood.com (an online, subscription-based, fisheries news service) prepared the following report based on interviews with a number of the shrimp experts, who spoke on the condition that they would not be quoted by name. When [...]

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Problems in shrimp culture during the wet season

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Recently, many farmers have faced the problem of fluctuations in salinity and temperature causing shrimp diseases; particularly yellowhead, white spot and luminescent bacteria that generally cause farmers to lose their crops. They have also had problems with stunted growth or black gill. Many of these problems can be overcome. Most farmers generally prefer to stock shrimp in the wet season, as they believe there are fewer problems than in the dry or cold seasons. However, culture in the wet season [...]

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Early Mortality Syndrome Outbreaks: A Microbial Management Issue in Shrimp Farming?

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A recent disease of farmed Penaeid shrimp, commonly referred to as “early mortality syndrome” (EMS) or more technically known as “acute hepatopancreatic necrosis disease” (AHPND), was first reported in southern China in 2010 and subsequently in Vietnam, Thailand, and Malaysia [1]. The EMS/AHPND disease typically affects shrimp postlarvae within 20–30 days after stocking and frequently causes up to 100% mortality. The Global Aquaculture Alliance [2] has estimated that losses to the Asian shrimp culture sector amount to USD 1 [...]

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