PROTEIN
Refers to the microscopic unicellular algae thrive in wide range of habitats, either in marine, brackish or freshwater systems.
a. Phytoplankton b. Macroalge
c. Microalgae d. Both a and c
e. Letter a only
d. Both a and c
Most forms of traditional aquaculture rely largely on the production of foods through natural processes, or by fertilization and water management in enclosed areas.
a. Extensive system
b. Semi-intensive
c. Intensive System
d. Both a and b
e. All of these
d. Both a and b
Which of the following does not belong to the group?
a. Nitzchia sp. b. Skeletonema sp.
c. Moina sp. d. Chaetoceros sp.
c. Moina sp.
This is a type of blue-green algae that is packed with nutrients and often considered a superfood.
a. Spirulina spp.
B. Chlorella vulgaris
c. Nannochloropsis oculata
d. Tetraselmis spp.
a. Spirulina spp.
In the mass culture of green algae, what is the suggested amount of Ammonium sulfate (21-0-0) per ton?
a. 12grams b. 75grams c. 12kilograms d. 75kilograms
b. 75grams
Scientific name of green algae that is usually cultured in hatchery facilities.
a. Nanochloropsis oculata
b. Nannochloropsis ocullata
c. Nannochloropsis oculata
d. Nanochloropsis ocullata
c. Nannochloropsis oculata
This used for counting algal cells which plays a very important role in the subsequent propagation of algae and for feeding purposes.
a. Sedgewick Rafter
b. Haemacytometer
c. Algae Counter
d. Cell counter
b. Haemacytometer
Phase/stage where cell division slows down when nutrients, light, pH, Carbon dioxide or other physical and chemical factors begin to limit growth.
a. Stationary Phase
b. Exponential Growth/Logarithmic
c. Lag Phase or Induction Phase
d. Death Phase
e. Declining Growth Phase
b. Exponential Growth/Logarithmic
In the phases of Microalgae's growth, what is the first phase/stage, with little increase in cell density occurs?
a. Stationary Phase
b. Exponential Growth/Logarithmic
c. Lag Phase or Induction Phase
d. Death Phase
e. Declining Growth Phase
c. Lag Phase or Induction Phase
Microscopic plants are the most desirable food because they have high protein value of up to _____________, a short life cycle for a rapid turn-over of nutrients, and a small size that enables zooplankton and fishes to easily feed on them.
a. 40% b. 50% c. 60% d. 70% e. 80%
c. 60%
The suggested amount of Ammonium phosphate (16-20-0) per ton.
a. 12grams b. 75grams c. 12kilograms d. 75kilograms
a. 12grams
This is used to neutralize the seawater treated with chlorine.
a. Potassium sorbate
b. Sodium thiosulfate
c. Orthotoludine
d. Urea
b. Sodium thiosulfate
They are the most widely used zooplankton in aquaculture, as they are preferred as feed for larvae of fishes.
a. Brachionus spp. b. Moina spp.
c. Artemia salina d. Tubifex tubifex
a. Brachionus spp.
Large or L-type Rotifer.
a. Brachionus plicatilis
b. Brachionus rotondiformes
c. Brachionus rotundiformes
d. Brachionus plecatilis
a. Brachionus plicatilis
A technique that has been commonly used in aquaculture, that consists of adding live algae in the water culture.
a. Blue-green Water Technology
b. Green Water Technology
c. Green Water Ecosystem
d. Green Water Technique
b. Green Water Technology
Determine the Feed Conversion Ratio (FCR) when the feed consumed is 1kg and the weight gained after 1 month is 250g.
60g/pc
This is the most commonly used live food either in marine or freshwater aquaculture. It can form dormant embryos that makes them a convenient choice as a larval food source.
a. Brachionus spp. b. Moina spp.
c. Artemia salina d. Tubifex tubifex
c. Artemia salina
Commonly known as bloodworm, and is considered as the cheapest natural food that can be easily obtained from water systems.
a. Brachionus spp. b. Moina spp. c. Artemia salina d. Tubifex tubifex
d. Tubifex tubifex
Small or S-type Rotifer.
a. Brachionus plicatilis
b. Brachionus rotondiformes
c. Brachionus rotundiformes
d. Brachionus plecatilis
c. Brachionus rotundiformes
These are small animals that live in the water column of almost all water bodies, including oceans, lakes and ponds. These animals play a crucial role in aquaculture, serving as a vital food source for various fish species and enhancing growth efficiency.
a. Plankton b. Lablab
c. Zooplankton d. Lumot
e. Phytoplankton
c. Zooplankton
The following statements about algae are TRUE, except.
a. Microscopic unicellular algae thrive in a wide range of habitats
b. They live in the water column that exist individually, in group or in chain
c. They are capable of performing photosynthesis and are referred to as plant-like organisms
d. They produce approximately half of the atmospheric oxygen
e. None of the above
e. None of the above
A farmer wants to perform sampling method to his one of fishponds, the farmer took 30 pcs tilapia, and the total weight of samples is 1,800g. What is the ABW?
4,800 grams or 4.8Kilograms
The species of unialgal that was collected by Beijerinck in 1890. This was used in studying plant physiology in early 1900’s by Warburg.
a. Spirulina spp.
B. Chlorella vulgaris
c. Nannochloropsis oculata
d. Tetraselmis spp.
B. Chlorella vulgaris
What is the daily feed requirement of your 2,000 pcs fish stock with 20g ABW on the assumption of 90% survival, and 6% Feeding Rate?
3,600 grams or 3.6 Kilograms
The last phase/stage to occur in the dynamic growth of microalgae.
a. Stationary Phase
b. Exponential Growth/Logarithmic
c. Lag Phase or Induction Phase
d. Death Phase
e. Declining Growth Phase
d. Death Phase