Seed production of giant freshwater prawn fisheries pptAshish sahu
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Giant freshwater prawn seed production starts in Andaman - INDIA - A scientist and his team of the Division of Fisheries Science, Central Agricultural Research Institute (CARI), Port Blair, have initiated research on breeding and larval rearing of Giant Freshwater Prawn (M Rosenbergii) under controlled conditions at the CARI farm complex.
Seed production of giant freshwater prawn fisheries pptAshish sahu
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Giant freshwater prawn seed production starts in Andaman - INDIA - A scientist and his team of the Division of Fisheries Science, Central Agricultural Research Institute (CARI), Port Blair, have initiated research on breeding and larval rearing of Giant Freshwater Prawn (M Rosenbergii) under controlled conditions at the CARI farm complex.
Pre-stocking management of nursery pond for IMCKartik Mondal
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Pre stocking management is one of the important method of entire three tire fish farming system. Because, fish mortality is very high at the stage of spawn. The stocking density of nursery pond is 2 lacks/ha.
In Nursery pond fish nursed very well to prevent fish mortality.
Pre-stocking management of nursery pond for IMCKartik Mondal
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Pre stocking management is one of the important method of entire three tire fish farming system. Because, fish mortality is very high at the stage of spawn. The stocking density of nursery pond is 2 lacks/ha.
In Nursery pond fish nursed very well to prevent fish mortality.
A how to video about creating the racks for the vertical grow aquaponics system.
Learn more about ZipGrow towers here: http://brightagrotech.com/zipgrow/
This was an Aquaculture presentation to the Dayton Water Conference on the fastest growing food industry in the world and which creates a large balance of trade for the U.S. It is also a new market for water treatment.
What makes an effective aquaponics system?PortableFarms
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What Makes An Effective Aquaponics System? Brought to you by Phyllis Davis, President of Portable Farms, Inc. and Co-Inventor of Portable Farms Aquaponics System.
The integration of fish and vegetables creates an ideal growing environment that is more productive than conventional methods. Consequently, aquaponics is gaining more importance now a day because crop production systems are being forced towards increasing irregularities as drought, floods, storms, cyclones and diseases visit regularly. A simple aquaponic system was designed with the locally available materials.13 pants of 5 different species were grown in an area of 0.27 m2 ( Rashmi M et. al 2013). Three different methods were tested to determine the best system to grow Taro vegetable. The applied methods were T1 = aquaponics system for soilless vegetable culture in gravel bed with fish tank waste water, T2= hydroponics for soilless vegetable culture in gravel bed with tap water and T3= vegetable culture in soil media with tap water as control. Double recirculating aquaponic system (DRAPS) consisting of two independent recirculating units – a recirculating aquaculture unit for fish production and a closed hydroponic cycle for plant production which were connected unidirectional was developed (Suhl J et al 2016). Results revealed that aquaponic system offers better results than other media. This system can enhance the organic farming which could be environmental friendly. Double recirculating aquaponic system (DRAPS) with two independent cycles provides the opportunity to produce equal tomato yields compared to those obtained by conventionally used hydroponic systems. By Using DRAPS fertilizer use efficiency was also improved by 23.6%.
Starting a Commercial Aquaponics Farm - Bright AgrotechUpstart University
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These are the webinar slides for "Starting A Commercial Aquaponics Farm"- a webinar by Dr. Nate Storey of Bright Agrotech.
Find the entire recorded webinar here: http://bit.ly/1dsSXr3
Aquaponics require only 5% of the usual water intake for growing Food, Feed, Herbs, Fish and other high-value agri products. It is a revolutionary concept already adopted by UAE by creating one of the largest farms in the world. Interesting reading and great business potential.
A new way of farming! Grow Fish, Grow Vegetables at the same time, saving water, time, space , efforts and all ORGANIC.
Read this presentation to know more about it.
Aquaponics (/ˈækwəˈpɒnɪks/) refers to any system that combines conventional a...Ashish sahu
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Aquaponics (/ˈækwəˈpɒnɪks/) refers to any system that combines conventional aquaculture (raising aquatic animals such as snails, fish, crayfish or prawns in tanks) with hydroponics (cultivating plants in water) in a symbiotic environment.
Aquaponics is an Integration of Aquaculture and Hydroponics. This presentation includes an introduction of Aquaponics. Using Aquaponics, you can grow fish and plants together.
Fish depends on water for survival. Without water, aquatic animals ceased to live. It is in this medium that determines their existence, although other factors like food, oxygen also support their growth and survival. Another conditions is the quality of water being supplied. Culture species need good quality water which are free from bacteria. Good water management is necessary to determine fish growth with less mortality
Francesca Gottschalk - How can education support child empowerment.pptxEduSkills OECD
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Francesca Gottschalk from the OECD’s Centre for Educational Research and Innovation presents at the Ask an Expert Webinar: How can education support child empowerment?
Model Attribute Check Company Auto PropertyCeline George
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In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
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http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
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Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
The Roman Empire A Historical Colossus.pdfkaushalkr1407
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The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
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In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Palestine last event orientationfvgnh .pptxRaedMohamed3
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An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
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Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
2. Contents
ï‚´ Introduction
ï‚´ History
ï‚´ Essential components of an Aquaponic unit
ï‚´ Water quality in Aquaponics
ï‚´ Aquaponics Plants and requirements
ï‚´ Aquaponics Fishes and requirements
ï‚´ Functioning of Aquaponics
ï‚´ Aquaponics in Sri Lanka
ï‚´ Advantages and disadvantages
ï‚´ Other Possibilities in Aquaponics
ï‚´ Conclusion
ï‚´ Reference
3. Introduction
ï‚´ Aquaponic is a fast growing and more sustainable method of food
production.
ï‚´ Aquaponics is a system that combines hydroponics with intensive
aquaculture
ï‚´ bio-integrated food production system.
4. History
hydroponics
ï‚´ Hydroponics is the production of plants in a soilless medium where by all of
the nutrients, which are supplied in aqueous solution
ï‚´ In China it was reported that "frame fields" for growing water spinach were
widespread in ancient times
ï‚´ The raft gardens were made with a frame of bamboo and a layer of soil
and supplied leaf vegetables for home consumption
ï‚´ In Mexico and Bangladesh organic matter from plants was used to create
rafts for floating agriculture
6. intensive aquaculture
ï‚´ intensive aquaculture in which fish are kept at high density in tanks or
raceways and fed a high quality food
ï‚´ US only since the mid-20th century
ï‚´ As production intensified it was realized that the effluent was high in nutrients
and could cause eutrophication and other environmental impacts
7. Aquaponics
ï‚´ it has an ancient history, Plants have been grown using fish farm wastes either directly or
indirectly in China and SE Asia for thousands of years
ï‚´ aquaponics has been strong since the 1960s, in US at Woods Hole Oceanographic
Institute
ï‚´ awareness of impact of nutrient wastes on the environment while at the same time
increasing the requirement of food production developed the aquaponics
ï‚´ Globally there are now hundreds of small scale aquaponic initiatives and several larger
scale commercial or near commercial enterprises
8. Essential components of an aquaponic unit
ï‚´ fish tank
ï‚´ mechanical filter
ï‚´ bio filter
ï‚´ hydroponic containers
ï‚´ Water circulation unit
ï‚´ aerators
9. fish tank
ï‚´ essential component in every unit
ï‚´ Shapes
ï‚´round
ï‚´Square
ï‚´Oval
ï‚´ material
ï‚´plastic
ï‚´Fiberglass
ï‚´Cement
ï‚´ground pond
ï‚´ Colour
ï‚´White or other light colours
10. mechanical filter
ï‚´ separation and removal of solid and suspended fish waste from fish
tanks
ï‚´ It is essential for the health of the system
ï‚´ Type of filter
ï‚´Screen filter
ï‚´sedimentation tanks
ï‚´sand or bead filters
11. Bio filter
ï‚´ The bio filter is installed between the mechanical filter and hydroponic
containers
ï‚´ living bacteria
ï‚´ Nitrosomonas
ï‚´ Nitrobacter
ï‚´ volcanic gravel, plastic bottle caps, netting, PVC, shavings and nylon scrub
pads are act as substrate for bacteria
 Nitrosomonas bacteria convert ammonia (NH₃) into nitrite (NO₂-)
 Nitrobacter bacteria then convert nitrite (NO₂-) into nitrate (NO₃-)
12. Hydroponic components
ï‚´ the plant-growing sections in the unit
ï‚´ Three designs are more familiar with aquaponics
media bed /particulate beds
14. Water circulation unit
ï‚´ Water circulation is fundamental for keeping all organisms alive in
aquaponics
ï‚´ The water moves from the fish tanks, through the mechanical filter and
the bio filter and then to the plants in their media beds and finally to the
collecting tank
15. Water quality in aquaponics
ï‚´ Oxygen
ï‚´ pH
ï‚´ Temperature
ï‚´ Ammonia
ï‚´ Nitrite
ï‚´ Nitrate
ï‚´ Water hardness
16. oxygen
ï‚´ plants, fish and nitrifying bacteria all need oxygen to live.
ï‚´ fish may die within hours when exposed to low DO within the fish tanks
ï‚´ adequate DO levels is crucial to aquaponics
pH
ï‚´ The pH of the water has a major impact on all aspects of aquaponics,
especially the plants and bacteria
 the pH controls the plants’ access to micro- and macronutrients
 Nitrifying bacteria difficult to survive below a pH of 6, and the bacteria’s
capacity to convert ammonia into nitrate reduces in low pH conditions. This
can lead to reduced bio filtration and fish mortality
17. Temperature
 general compromise range is 18–30 °C.
ï‚´ Temperature has an effect on DO as well as on the toxicity of ammonia
ï‚´high temperatures have less DO and
ï‚´high temperatures more unionized (toxic) ammonia
Ammonia
ï‚´ Most of the fish waste is form of ammonia (NH3)
ï‚´ ammonia is then nitrified by bacteria and converted into nitrite (NO2-)
ï‚´ Ammonia is toxic to fish, Commonly in fishes can show symptoms of ammonia
poisoning at levels 1.0 mg/ liter
 high level of ammonia damage to the fishes’ central nervous system and gills
18. Nitrite
ï‚´ High levels of NO2- can immediately lead to rapid fish deaths.
ï‚´ Again, even low levels over an extended period can result in increased fish
stress, disease and death
ï‚´ NO2- prevent the transport of oxygen within the bloodstream of fish its
called as brown blood disease
Nitrate
ï‚´ Nitrate is a far less toxic than the other forms of nitrogen
ï‚´ It is the most accessible form of nitrogen for plants, and the production of
nitrate is the goal of the bio filter
ï‚´ Fish can tolerate levels of up to 300 mg/ liter.
19. Aquaponics Plants and requirements
ï‚´ most popular vegetables are leafy vegetables and herbs-especially lettuce
and basil
ï‚´ less suitable for fruit vegetables
ï‚´ suitable vegetables
ï‚´Lettuce
ï‚´Basil
ï‚´Spring onion
ï‚´Fruit vegetables such as tomato, cucumber
ï‚´Beets
ï‚´Okra
ï‚´Blueberries
20. ï‚´ Plants require sunlight, air, water and nutrients to grow
ï‚´ Essential macronutrients include: nitrogen, phosphorus, potassium, calcium,
magnesium and sulphur
ï‚´ Micronutrients include iron, zinc, boron, copper, manganese and
molybdenum
ï‚´ Deficiencies need to be addressed by supplying the limiting nutrients with
supplemental fertilizer or increasing mineralization
 The suitable temperature range for most vegetables is 18–26 °C, although
many vegetables are seasonal.
ï‚´ pest/disease management uses physical, mechanical and cultural practices
to minimize pests/pathogens
ï‚´ uses fish-safe chemical and biological treatment in targeted applications,
when necessary
21.
22. Aquaponics Fishes and requirements
ï‚´ High tolerance and high marketable fishes are more suitable
ï‚´Tilapia, carp, and catfish are highly suitable for aquaponics
ï‚´ Common culture fishes
ï‚´Tilapia
ï‚´Catfish
ï‚´common carp (Cyprinus carpio)
ï‚´Mullet
ï‚´perch
ï‚´bester sturgeon
ï‚´grass carp
23. Tilapia
ï‚´ possibilities
ï‚´ preferred species for tropical and sub-tropical situations
ï‚´ easy to breed
ï‚´ tolerates low Dissolved Oxygen (DO) levels (0.2 ppm)
ï‚´ high Total Ammonia Nitrogen levels (>90 ppm @ pH 6.0)
ï‚´ low pH levels (< 5.0)
ï‚´ Problems
ï‚´ It will breed very readily
ï‚´ Breeding will reduce fish production rate/quality
24. Requirements
ï‚´ the correct balance of proteins, carbohydrates, fats, vitamins and minerals
needed for fish
ï‚´ never overfeed the fish, and remove uneaten food after 30 minutes
ï‚´ Poor / changing water quality, overcrowding, and physical disturbance can cause
stress
ï‚´ which may lead to disease outbreaks
ï‚´ Take the time to observe and monitor the fish in order to recognize symptoms
early and provide treatment
28. Aquaponics in Sri Lanka
ï‚´ In Sri Lanka aquaponics introduced as a Agriculture Tourism
ï‚´E.g - Gadadessa is a Holiday Resort in Kandy
29. Advantages
ï‚´ Reduced labour
ï‚´ Aquaponics uses 90% less water than traditional farming
ï‚´ NOT require farm land and soil
ï‚´ Fish feed is the only nutrient inputs
ï‚´ Aquacultural waste products are used
ï‚´ Aquaponics protects our rivers & lakes
ï‚´ Health & Nutrition value high
ï‚´ Higher production rate
ï‚´ Provides income from two separate products
ï‚´ A lot of current research and improvements going on
30. Disadvantages
ï‚´ High initial cost
ï‚´To fill up water tanks
ï‚´To build the system (Greenhouse, pumps etc.)
ï‚´ Difficult to grow root crops
ï‚´ Requires skill and experience
ï‚´ Constant monitoring of water parameters
ï‚´ Pests and diseases can be devastating
ï‚´ Limitations concerned with fish species reared
ï‚´ Competitive market prices
ï‚´ Requires electric energy to maintain and recycle water within the system
31. Other Possibilities in Aquaponics
Organic Aquaponics
ï‚´ Natural fertilizer
ï‚´ Natural minerals (snail shells)
 Good marketing – labelling
Use of Technology
ï‚´ Smart phone applications
ï‚´ Pipe blockage warning
ï‚´ System automation
32. Other Possibilities in Aquaponics
Growing Indoors
ï‚´Can be used underground and indoors
ï‚´Artificial lighting
33. Other Possibilities in Aquaponics ……
Growing Upwards
ï‚´Futuristic Concepts
ï‚´Growing locally
ï‚´Dedicated Skyscraper
Farms
ï‚´Makes use of limited
space availability
ï‚´Space missions
34. Conclusion
ï‚´Aquaponics is a more sustainable food production systems
ï‚´It involves the production of both fish and vegetables, using
a single nutrient source (fish feed)
ï‚´however that aquaponic systems are primarily vegetable
production systems, simply because of the biological nature
of the relationship between fish nutrient production and
plant nutrient uptake
ï‚´The primary advantage of aquaponics is water use efficiency.
Other oft-cited advantages include nutrient utilization
efficiency, product quality and food security
35. Reference
ï‚´ Bakhsh, H.K. (2008) Integrated culture, Hydroponics &Aquaponics systems. Universiti
Malaysia Terengganu.
ï‚´ Bernstein, S. (2011) Aquaponic gardening: A step-by-step guide to raising vegetables and
fish together. New York, NY, United States: New Society Publishers.
ï‚´ Long, B. (2012) The EZ guide to aeroponics, hydroponics and aquaponics: [how to create
a sustainable food supply]. Texas: Bonjour Limited Holdings.
ï‚´ Staff, P.S. (2007) Great source aim new jersey: Student edition Workbook 5pk grade 3
(level C) 2007. United States: Great Source Education Group.
ï‚´ Somerville, C. (2014) Small-scale Aquaponic food production: Integrated fish and plant
farming. Rome, Italy, Italy: Food & Agriculture Organization of the United Nations (FAO).
round tanks with flat bottoms are recommended, The round shape allows water to circulate uniformly
Plastic, fiberglass = because their durability and long life span
Metal is not possible because of rust