29 Questions
What type of fish are those that move within salt water only?
Oceanodromous fish
Which of the following describes a fish production system that grows multiple aquatic organisms in the same water body?
Polyculture
What is the purpose of a $ ext{processing plant}$ in the fish industry?
To prepare fish portions for marketing
Which type of fish are those that move within fresh water only?
Potamodromous fish
What is the purpose of the $ ext{Module I Pond design}$ in aquaculture?
To design the aquaculture pond for cost-effective production and maximum profit
Which term describes the detrimental practice of removing more of a natural aquatic species than what natural reproduction can support?
Overfishing
What is the main focus of the module on aquaculture engineering and related sciences?
Aquaculture production systems and aquaculture engineering
Following the completion of the module, what should students be able to do?
Design aquaculture production systems
Which aspect is NOT covered in the module on aquaculture engineering?
Status of aquaculture systems in Thailand
What is the purpose of the exercises/activities in the module?
To assess understanding gained from the lessons
Which of the following is a key objective of the module?
Explaining aquaculture system importance
What does the module aim to provide students with to prepare them for design?
Knowledge of aquaculture production systems
What is the purpose of sex reversal in tilapia culture?
To enable production of all-male populations.
What is the Secchi disk used for?
To measure water transparency.
What does ROI stand for?
Return On Investment.
Which process involves hormone application at the larval stages of fish?
Sex reversal
What is the main function of processing equipment in fish farming?
To cool or freeze fish portions.
In fish species, when does natural sex transformation from males to females or vice versa occur?
Naturally without human intervention
What was the annual average growth rate of milkfish and tilapia production from 1998 to 2002?
11.7 percent
In 2002, what percentage of total animal meat consumption was represented by the combined production of milkfish and tilapia?
8 - 9 percent
Over a ten-year period, by what average percentage did milkfish prices increase?
3.4 percent
How many people were employed in aquaculture in the Philippines since 1987, according to BFAR?
258,480
In 2002, what were the reported export earnings from seaweeds, according to SIAP?
US$ 138,438,853
What can be the yield from a one-hectare seaweed farm in two months, according to the text?
48 tonnes (wet weight)
Which of the following is NOT one of the lessons covered in Module I?
Aquacultural engineering
What is the purpose of the Summative Test mentioned in the text?
To evaluate how much the student has learned from Module I
What is the purpose of the Learning Activity mentioned in the text?
To interview at least one fisherfolk, fish farmer or fish trader about their success in fishing or aquaculture
What is the main focus of Module I according to the text?
Aquaculture, fisheries, and aquacultural engineering
What is the purpose of the Module Summary in the text?
To provide an overview of the content covered in Module I
Study Notes
Aquaculture Terms
- Oceanodromous fish: Migratory fish that move within saltwater only.
- Organic fish: Fish produced using organic concepts and natural procedures, minimizing input of artificial man-made compounds.
- Ornamental fish: Small fish, such as koi, which are typically grown to be kept in aquariums or small landscape ponds.
- Overfishing: Detrimental practice of removing more of a natural aquatic species than what natural reproduction can support.
- Pesculator: Fish elevator used for harvesting live fish from pond harvesting pit, to Fish Sorting Machine of Fish Transfer Tanks.
- Pisciculture: Aquaculture; practice involving finned fish.
- Polyculture: A food production system that grows several species simultaneously in the same space, in aquaculture, growing multiple aquatic organisms in the same water body.
Aquaculture Systems
- Pond acreage: Area committed to extensive aquaculture holdings at a fish farm or company.
- Module I Pond design: The conceptual and engineering design of an aquaculture pond, according to the requirements of the crop organism and site conditions, with the aim of achieving cost-effective production and maximum profit.
Fish Migration
- Potamodromous fish: Migratory fish that move within fresh water only.
Fish Processing
- Processing plant: The building structure that houses the processing equipment and auxiliary systems, used in the fish Processing Plant, for the purpose of preparing fish portions prior to marketing.
- Processing equipment include machines for cleaning, sorting, scaling, eviscerating, filleting, trimming, cooling or freezing, and packing fish and fish portions, prior to marketing.
Aquaculture Engineering
- ROI: Return On Investment, an indicator showing the economic rate of return of a capital investment.
Water Quality
- Secchi disk: A plain white, circular disk 30 cm in diameter used to measure water transparency or turbidity in bodies of water.
- Water quality: The characteristics of water, such as water temperature and contamination, which define its ability to sustain life and its purity from chemicals.
Sex Reversal in Fish
- Sex reversal: Reversing the sex of males or females in fish can be accomplished by hormone application at the larval stages, from day 2-to 20 after hatching.
Aquaculture Production
- In 2002, the combined production of milkfish and tilapia of 364,289 tonnes represented 8-9% of total animal meat consumption.
- The prospects for further increasing aquaculture production are enormous.
- Over a ten-year period, milkfish and tilapia prices increased by an average of 3.4% and 1.7% respectively.
Employment in Aquaculture
- 258,480 people have been employed in aquaculture since 1987.
- The industry estimates employment generation to be higher.
- In the seaweed industry alone, the Seaweed Industry Association of the Philippines (SIAP) claims that in 2002, 1,017,925 individuals were engaged in seaweed farming.
- In 2002, SIAP reported export earnings of US$138,438,853 from seaweeds.
Test your knowledge on the introduction to aquaculture systems based on various references such as McGraw-Hill Education, CIGR Handbook of Agricultural Engineering, and FAO Manual. Explore topics like importance of aquaculture systems and survey of aquaculture systems in the Philippines.
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