RIDDLES — FISH FARMING, PROCESSING AND CONSERVATION
Bio-entrepreneurship
Riddle 1: I am formed by combining two distinct areas of knowledge, not by either one alone. I bring biological knowledge together with skills in business and enterprise. I am credited as a major driver of economic growth. I inspire the creation of bigger and new markets, as well as innovation and wealth creation. Feed production, care for fingerlings, and creating the right aquatic environment are all areas where I offer huge potential. Who am I?
ANSWER: Bio-entrepreneurship
Nursery Stage Practices
Riddle 2: I am a practice carried out at the nursery stage of fish farming. Fish farmers using me choose parents with desirable traits such as growth rate, disease resistance, and size. My goal is to produce offspring with improved genetic characteristics. Acquiring fingerlings of the best quality and health depends on me. I am the very first biological practice listed for the nursery stage. Who am I?
ANSWER: Selective breeding
Riddle 3: I am a facility, not a fish. I provide controlled conditions for fish eggs to develop into fry. Proper water quality, temperature, and nutrition inside me are essential. Newly hatched fish, called fry, begin their lives within me. I support the very first stage of a fish's life, before it is ever moved to a pond or cage. Who am I?
ANSWER: Hatcheries
Riddle 4: I am a nursery-stage biological practice, not a tool. I ensure a regular supply of essential feed and other inputs such as aeration and drugs when necessary. Specialised diets formulated under me consider the nutritional needs of fry. I am also responsible for weaning fry from natural feed onto formulated feed. High-quality feeds with appropriate protein levels are crucial to me. Who am I?
ANSWER: Feeding protocols
Riddle 5: I am a nursery-stage biological practice, not a piece of equipment. I involve routine checking of water quality and level. Temperature, oxygen levels, and pH must all be kept at their optimal levels under me. My goal is to maintain the best possible environment for fry to grow. Without me, fry growth would suffer. Who am I?
ANSWER: Water management
Riddle 6: I am a set of nursery-stage practices, not a single action. Preventing disease outbreaks is my most critical purpose. Quarantine procedures, disinfection, and monitoring health are all part of me. Without me, an entire nursery stock could be lost to disease. I work alongside feeding protocols and water management to keep fry healthy. Who am I?
ANSWER: Biosecurity measures
Grow-Out Stage Practices
Riddle 7: I am a type of stocking used at the grow-out stage of fish farming. I am common for species like tilapia and catfish. Fish raised under me are stocked directly into an earthen or dug enclosure. Water quality, feeding, and disease management are all monitored under me. I am one of three types of stocking described in the notes, alongside cage culture and raceways and tanks. Who am I?
ANSWER: Pond culture
Riddle 8: I am a type of stocking used at the grow-out stage of fish farming. Fish raised under me are kept in submerged enclosures or net pens. I take place in natural water bodies such as lakes, rivers, or coastal areas. Regular feeding and monitoring are essential to me. I am one of three types of stocking described in the notes, alongside pond culture and raceways and tanks. Who am I?
ANSWER: Cage culture
Riddle 9: I am a type of stocking used at the grow-out stage of fish farming. I take place in controlled environments with recirculating water systems. Fish raised under me are kept in concrete structures rather than ponds or cages. Water quality under me is essential and closely monitored. I am one of three types of stocking described in the notes, alongside pond culture and cage culture. Who am I?
ANSWER: Raceways and Tanks
Riddle 10: I am a concern at the grow-out stage of fish farming, not a type of stocking itself. Overcrowding is the problem I exist to prevent. Stress, disease, and poor growth can all result if I am ignored. The right level under me varies depending on the species being farmed. I am singled out as an important note right after the three stocking methods are described. Who am I?
ANSWER: Stocking density management
Riddle 11: I am a grow-out stage biological practice, not the nursery-stage version of feeding. Proper feeding schedules are part of me. Balanced diets are part of me. Efficient feed conversion ratios are also crucial to me. Fingerlings depend on me to grow well at this stage. Who am I?
ANSWER: Feeding strategies
Riddle 12: I am a grow-out stage biological practice concerned with the pond or tank environment. I include aeration and filtration. Oxygen supply and waste removal are critical concerns of mine. Aeration systems and filters are the tools that maintain me. I sit alongside stocking, feeding, and disease prevention as one of the six grow-out practices listed in the notes. Who am I?
ANSWER: Water quality management
Riddle 13: I am part of health monitoring at the grow-out stage of fish farming. Regular health checks are part of me. Treatment protocols are also part of me. I am followed alongside stocking, feeding, and water quality management. Without me, an outbreak could spread through an entire grow-out population. Who am I?
ANSWER: Disease prevention and management
Tools & Equipment
Riddle 14: I am a tool used in both nursery and grow-out stages of fish farming. I am used for harvesting and transferring fish between ponds. I am also used to remove debris from ponds. Hapas or cages can also be made using me. Who am I?
ANSWER: Nets
Riddle 15: I am a tool used in fish farming, not a living thing. I sort fish by their sizes. My purpose is to help manage stock densities and optimise growth. I am used both in the nursery/grow-out stages and again later during harvesting. Who am I?
ANSWER: Graders
Riddle 16: I am a tool used in fish farming, not a person. I am used to count fish. Harvesting and management practices both rely on me. Without me, farmers would have no accurate record of how many fish they hold. Who am I?
ANSWER: Fish counters
Riddle 17: I am a tool used in fish farming, not a living thing. I check pH, dissolved oxygen, ammonia, nitrite and nitrate levels. Farmers rely on me to catch problems in the water before they harm the fish. I am one of ten tools and equipment listed for use in nursery and grow-out stages. Who am I?
ANSWER: Water quality test kits
Riddle 18: I am a tool used in fish farming, not a living thing. My job is to move water into and out of the pond. Without me, water management in a fish farm would be far harder to control. I am one of ten tools listed for nursery and grow-out stages. Who am I?
ANSWER: Water pump
Riddle 19: I am used to prevent water seepage in a fishpond. I also facilitate proper water management. I help prevent contamination by ground water. I am one of ten tools listed for nursery and grow-out stages of fish farming. Who am I?
ANSWER: Pond liners
Riddle 20: I am a tool used in fish farming, not a living thing. My purpose is to increase oxygen levels in the water. Fish depend on the oxygen I provide to survive and grow. I am one of ten tools listed for nursery and grow-out stages of fish farming. Who am I?
ANSWER: Aeration machine
Riddle 21: I am a tool used in fish farming, not a living thing. I remove solid waste and organic matter from the fishpond. My purpose is to increase water quality. I am one of ten tools listed for nursery and grow-out stages of fish farming. Who am I?
ANSWER: Filtration systems
Riddle 22: I am a tool used in fish farming, not a living thing. I clean excess algae out of a pond. My purpose is to prevent algal blooms. I also help maintain water quality for healthy fish. Who am I?
ANSWER: Algae scrubbers
Riddle 23: I am a tool used in fish farming, not a living thing. I am used to measure how heavy each fish is. Farmers use me to monitor the growth rate of their stock. I am the last of ten tools listed for nursery and grow-out stages of fish farming. Who am I?
ANSWER: Weighing scale
Harvesting Tools & Preservation
Riddle 24: I am a large net, not a small one. I am used to concentrate and capture fish during the final drainage of a pond. In small ponds, I can be pulled by hand. In larger ponds, vehicles are required to drag me. Who am I?
ANSWER: Seines
Riddle 25: I am a harvesting tool, not a net. I am made of bamboo or other materials. My purpose is to catch fish efficiently. I am listed alongside seines, graders, nets, and aerators as a harvesting tool. Who am I?
ANSWER: Bamboo screen trap
Riddle 26: I am a method of preserving fish, not a way of cooking it. I involve keeping fish in brine, a mixture of water and salt, for an extended period. My brine dehydrates the fish and prevents micro-organisms from causing spoilage. To make my brine, four parts of clean water are mixed with one part of salt. I am cost-effective and require less salt than my dry counterpart. Who am I?
ANSWER: Wet salting
Riddle 27: I am a method of preserving fish, not a way of cooking it. Salt is applied directly to the fish under me. The fish is then dried. I use more salt than my wet counterpart. Salt itself is the common preservative agent that makes both me and my counterpart possible. Who am I?
ANSWER: Dry salting
Riddle 28: I am a method of preserving fish, not a way of cooking it. I work by removing water content from fish. Sun-drying is one way I can be carried out. Industrial machines are another way I can be carried out. My purpose is to help prevent spoilage. Who am I?
ANSWER: Dehydration
Riddle 29: I am a method of preserving fish, not a way of cooking it. I work by slowing down bacterial growth. Freezing is one way I am carried out. Putting ice on fish is another way I am carried out. Who am I?
ANSWER: Lowering temperature (cold storage)
Riddle 30: I am a method of preserving fish for later consumption. Tuna and sardines packaged in tins are examples of foods made using me. I allow fish to be stored for a much longer period than fresh fish would last. Whenever possible, fresh fish is preferred, but I offer a long-term alternative. I am listed among salting, dehydration, and changes in temperature as a major fish preservation method. Who am I?
ANSWER: Canning
Habitat & Conservation
Riddle 31: I am a type of artificial fish habitat, not a natural one. Under me, water is continuously filtered and reused. My purpose is to raise fish in a controlled environment. I am one of three types of artificial habitat described in the notes, alongside aquaculture facilities and artificial reefs. Who am I?
ANSWER: Re-circulating aquaculture system (RAS)
Riddle 32: I am a type of artificial fish habitat, not a natural one. I am made from materials such as concrete and steel. I am placed underwater. My purpose is to provide a suitable habitat for fish and other marine organisms. Who am I?
ANSWER: Artificial reefs
Riddle 33: I am a fish stock management practice, not a type of habitat itself. My purpose is to improve spawning grounds and feeding areas. I work alongside stocking and monitoring to maintain a healthy fish population. Without me, spawning grounds and feeding areas could degrade over time. I help ensure the long-term survival of fish populations and the ecological balance of their habitats. Who am I?
ANSWER: Habitat restoration