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Introduction Farmers are considered to be the feeders of any nation. Indian farmers are not apart from them, they work days and nights to create bread and butter for human as well as for feeding animals too. Farming innovations have been started since ancient times by farmers. In modern era, they are devising many new farming models to achieve their respectable life. These types of agricultural innovations are dependent upon ecological conditions of that particular area, so they...
Comparative economics and environmental performance vs. conventional grow-out systems Harvesting tilapia from cages in Lake Kariba, Zimbabwe. Biofloc technology (BFT) promises to revolutionize tilapia and shrimp aquaculture industries globally. In fact, leading scientists believe that harnessing the flow of...
In the space of 25 years, global farmed tilapia production has risen from obscurity to become one of the most important farmed fish species from less than 398,000 tonnes in 1991 to a predicted global production of 6.4 million metric tonnes (MMT) in 2017. Projections indicate an expected growth of 2.6 percent in 2018 to 6.5 MMT, significantly lower than the average growth rate of 12 percent over the period from 2002 to 2012. Most of the global production of tilapia is produced in...
Introduction Carp is one of a few species of freshwater fish that can be considered as domesticated, but there is a considerable difference between the domesticated population and its wild relation with respect to reproduction capacity, growth, utilization of feeds, etc. The wild population is covered with scales and grows slowly while, the domesticated populations of both scaly and mirror varieties utilize artificially fed cereals and natural food well, giving rapid growth....
Feeds and feeding systems at Chambo Fisheries in Africa Mozambique tilapia (O. mossambicus, left) and Shiranus tilapia (O. shiranus, right) at Chambo Fisheries. (Editor’s note: This is part 2 of a three-part series. ...
The article “Tilapia - Miracle Fish (Part 1)” explained that “Market opportunities for green growth and special quality tilapia produced using sustainable intensification technologies should be viewed as an opportunity rather than a liability.” These green growth initiatives have been followed up in this article, Tilapia - Miracle Fish (Part 2) - it features an in-depth view in sustainable tilapia farming discussing aquaponic systems, hydraulic water-driven vertical...
1. Introduction Aquaculture, the farming of aquatic organisms, has been the agroindustrial activity with the highest growth rate worldwide in the last four decades. From 1970 to 2008 the production of aquaculture organisms grew at a rate of 8.3% per year, compared to less than 2% of fisheries, and 2.9% of livestock [1]. The annual aquaculture production is at present over 60 million tons (including marine plants), with an approximate value of 85 billion dollars [2]. The last FAO...
Phytoplankton are the key food item in both aquaculture and mariculture. Both systems are utilizing phytoplankton as food for the animals being farmed. In aquaculture, phytoplankton must be obtained and developed artificially through various adapted procedures. The plankton population in form of desirable bloom undertaken throughout the culture period as part of best pond management practice. Phytoplankton is used as a food stock for the production of zooplankton...
Introduction Cyanobacteria, blue-green algae, harmful algae, and toxic algae are words that can confuse people who are trying to decide on pond water safety. Certain algae can cause serious problems when they become very abundant in drought, hot weather, unusual rainfall patterns, or after nutrient accumulation in pond water. Fortunately, most ponds do not experience toxin problems or dense algal blooms. Watching for the warning signs that lead to toxic algal bloom development...
World aquaculture production continues to grow, albeit at a slowing rate. According to the latest available statistics collected globally by FAO, world aquaculture production attained another all-time high of 90.4 million tonnes (live weight equivalent) in 2012 (US$144.4 billion), including 66.6 million tonnes of food fish (US$137.7 billion) and 23.8 million tonnes of aquatic algae (mostly seaweeds, US$6.4 billion). In this context, India is...
Introduction The spider crabs of the genus Maja Lamarck, 1801 (Majoidea: Majidae), with around 20 described species worldwide, are represented on European coasts by four species: M. brachydactyla (Balss, 1922), M. crispata (Risso, 1827), M. goltziana (D’Oliveira, 1888) and M. squinado (Herbst, 1788) (Neumann 1998, Ng et al. 2008, Sotelo et al. 2008, 2009). M. brachydactyla...
Integrated Multi-Trophic Aquaculture (IMTA) is a flexible concept on which many variations can be developed and should not be viewed as confined to open-water, marine systems. For instance, Atlantic salmon reared for commercial use spend the early part of their life cycle in freshwater, often in land-based, closed-containment hatcheries before being transferred to open-seawater sites. ...
After the considerable and widely reported success of its 40th anniversary-year Aquaculture Europe 2016 event in Edinburgh, the European Aquaculture Society is moving forward on the organization of the AE2017 event to be held in Dubrovnik, Croatia from October 17 to 20, this year.
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Introduction
A three-phase growout process is commonly used in the commercial production of hybrid striped bass in earthen ponds. Phase I fingerlings, 2.2 to 3.3 lb/1000, are stocked into phase II ponds at a density of approximately 12,000/acre. Harvest of fish (2.2 to 4.5/lb) from phase II ponds is followed by size grading that precedes stocking into ponds (3,500/acre) for the final growout phase. Size...
Introduction Feed management is a key factor affecting water quality (Boyd and Tucker 1998, Jory 1995) and production economics in aquaculture (Jolly and Clonts 1993). Not only is the feed the initial 0source of physiological wastes, but it accounts for 55% to 60% of the operation costs in intensive systems and around 40% in semi-intensive systems (Chanratchakool et al. 1994,...
Introduction Between 1.5 and 2 million households worldwide are believed to keep tropical marine aquaria and the collection trade which supplies this industry is estimated at US$220-330 million annually (Wabnitz et al., 2003). The majority of these imports are destined for the United States, Europe, and Japan (Chapman et al., 1997). Unlike freshwater aquaria species, where 90% of fish species are farmed, only 100 of the...
Feeding is the most important task in the intensive pond production of catfish, and the person responsible for feeding should be an experienced fish culturist. In a normal situation, catfish can be seen only when they are coming up to feed, and their feeding behavior can be an important clue to general health and to other conditions in the pond. Thus, the person doing the feeding must be able to tell whether or not the fish are feeding normally. If they are not, the feeder must inform the...
The Edinburgh International Conference Centre (EICC) will host Aquaculture Europe 2016 from September 20-23. The event will present the latest science to support further development in the region and will do so in several ways.
Industry panels will discuss key opportunities and identify areas to...
Hi, I have a small catfish farm using 30 pieces, 3000 liters tanks. I dont do recirculatry. I change the water every two days. I want to improve the dissolved oxygen so that the fish will be very healthy and digest food fast to enhance rapid fattening. I have heard of oxygen and ozone generators. Are they applied for this purpose? I also saw solar aerator using a tube and stone, is it effective or i should just stick to the changing of water?
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The head of technical services at IRTA – Sant Carles de la Ràpita, Ricard Carbó, explains the water recirculation system used in the aquaculture facilities and its effects on the reduction of the water consumption....