Quarterly Aquaculture Survey 2020
Philippines, 2020 - 2021
Reference ID
PHL-PSA-QAqS-2020-V1
Producer(s)
Philippine Statistics Authority (PSA)
Metadata
Created on
Jun 14, 2022
Last modified
Jun 14, 2022
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11770
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- Data files
-
QAqS 2020
Sample Data
Culture System (cultsys)
Data File: QAqS 2020 Sample Data
Overview
vald
166
invd
0
Interval
discrete
Questions and instructions
Literal question
Culture System
Categories
Value | Category | Cases | |
---|---|---|---|
1 | 142 | 85.5% | |
2 | 24 | 14.5% | |
3 | 0 | 0% | |
4 | 0 | 0% | |
5 | 0 | 0% | |
6 | 0 | 0% | |
7 | 0 | 0% | |
8 | 0 | 0% | |
9 | 0 | 0% |
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.
Interviewer instructions
Ask the respondent,
What is the culture system used?
For QAqS Form 1, 2 and 5; valid codes are:
1 - Monoculture
2 - Polyculture
3 - Others, specify
For QAqS Form 3:
If 2.1 Aquafarm type is 4 - Seaweed farm, valid codes are:
4 - Monoline Bottom
5 - Monoline Floating
6 - Triangular
If 2.1 Aquafarm type is 5 - Oyster or 6 - Mussel, valid codes are:
7 - Staking
8 - Hanging
9 - Spreading
Select the correct culture system corresponding to the type of aquafarm and consistent with the definition given in Chapter 2.
In case there are different culture system being used in the operation during the quarter, choose the one that is usually used.
What is the culture system used?
For QAqS Form 1, 2 and 5; valid codes are:
1 - Monoculture
2 - Polyculture
3 - Others, specify
For QAqS Form 3:
If 2.1 Aquafarm type is 4 - Seaweed farm, valid codes are:
4 - Monoline Bottom
5 - Monoline Floating
6 - Triangular
If 2.1 Aquafarm type is 5 - Oyster or 6 - Mussel, valid codes are:
7 - Staking
8 - Hanging
9 - Spreading
Select the correct culture system corresponding to the type of aquafarm and consistent with the definition given in Chapter 2.
In case there are different culture system being used in the operation during the quarter, choose the one that is usually used.
Description
Text
Culture system refers to the production practices applied in the aquafarm.
For fishpond/pen and cage:
1. Monoculture refers to the culture of single species in one compartment.
2. Polyculture refers to the culture of two or more species in one compartment.
3. Others refer to culture systems not classified above.
Alternate culture system refers to crop rotation of two species, (e.g. interchanging bangus and prawn crops). For instance, bangus will be cultured from November to March followed by prawns from May to October.
For seaweed farm:
1. Bottom Monoline Method/Fixed Bottom Monoline are constructed by the use of mangrove post or wooden stakes anchored/staked deep into the substrate at 10 meters apart and 32-cm. interval in rows. The seaweed planting materials (seed) or cuttings are tied to the nylon monolines at 20-25 cm intervals using soft plastic materials. The monolines are stretched and tied to the stakes at 0.3-0.5 meter away from the bottom during low tide. A culture method where bamboo poles either whole or halved are driven into the bottom where the water is not less than 1 meter deep during the lowest tide. These are aligned and spaced at 1 to 2 feet. The bamboo poles act as collectors.
2. Floating Monoline is a method where a raft or longlines can be constructed in any way feasible as long as it will buoy up the line with plants, which are at least 30-cm. submerged in water. The lines with plants are stretched with the raft/longlines. The raft/longlines should be anchored either at the bottom with a stone or tied to a bamboo pole. The lines used are the same as that used in fixed bottom monoline (for shellfish/seaweed)
3. Triangular is a method which uses polyethylene rope #12 as cultivation line fixed five meters from the bottom through a wooden stake embedded firmly to the seabed. A rope of smaller size (#7) is used to construct a triangle. A float using float ball or empty plastic container is provided at the triangle's tips to add more buoyancy. The seedlings are planted at the side of the triangles at 30 centimeters apart.
For mussel/oyster farm:
1. Stake Method "Tulus" is a culture method where bamboo poles either whole or halved are driven into the bottom where the water is not less than 1 meter deep during the lowest tide. These are aligned and spaced at 1 to 2 feet. The bamboo poles act as collectors.
2. Hanging Method "Bitin" is an off-bottom method of culture that is suitable in relatively deeper waters of at least 2.5 meters depth during the lowest tide. Empty oyster shells or coconut shells are used as collectors. The shells are hung to a meter of no. 10 galvanized iron wire having a space of about 4 inches by a loop on the wire.
3. Spreading Broadcast Method "Sabog" is a culture method which makes use of stones, gravels, empty oyster shells, and other media as collectors. These are positioned in hard bottom areas where natural populations of oysters/mussels are known to occur.
For fishpond/pen and cage:
1. Monoculture refers to the culture of single species in one compartment.
2. Polyculture refers to the culture of two or more species in one compartment.
3. Others refer to culture systems not classified above.
Alternate culture system refers to crop rotation of two species, (e.g. interchanging bangus and prawn crops). For instance, bangus will be cultured from November to March followed by prawns from May to October.
For seaweed farm:
1. Bottom Monoline Method/Fixed Bottom Monoline are constructed by the use of mangrove post or wooden stakes anchored/staked deep into the substrate at 10 meters apart and 32-cm. interval in rows. The seaweed planting materials (seed) or cuttings are tied to the nylon monolines at 20-25 cm intervals using soft plastic materials. The monolines are stretched and tied to the stakes at 0.3-0.5 meter away from the bottom during low tide. A culture method where bamboo poles either whole or halved are driven into the bottom where the water is not less than 1 meter deep during the lowest tide. These are aligned and spaced at 1 to 2 feet. The bamboo poles act as collectors.
2. Floating Monoline is a method where a raft or longlines can be constructed in any way feasible as long as it will buoy up the line with plants, which are at least 30-cm. submerged in water. The lines with plants are stretched with the raft/longlines. The raft/longlines should be anchored either at the bottom with a stone or tied to a bamboo pole. The lines used are the same as that used in fixed bottom monoline (for shellfish/seaweed)
3. Triangular is a method which uses polyethylene rope #12 as cultivation line fixed five meters from the bottom through a wooden stake embedded firmly to the seabed. A rope of smaller size (#7) is used to construct a triangle. A float using float ball or empty plastic container is provided at the triangle's tips to add more buoyancy. The seedlings are planted at the side of the triangles at 30 centimeters apart.
For mussel/oyster farm:
1. Stake Method "Tulus" is a culture method where bamboo poles either whole or halved are driven into the bottom where the water is not less than 1 meter deep during the lowest tide. These are aligned and spaced at 1 to 2 feet. The bamboo poles act as collectors.
2. Hanging Method "Bitin" is an off-bottom method of culture that is suitable in relatively deeper waters of at least 2.5 meters depth during the lowest tide. Empty oyster shells or coconut shells are used as collectors. The shells are hung to a meter of no. 10 galvanized iron wire having a space of about 4 inches by a loop on the wire.
3. Spreading Broadcast Method "Sabog" is a culture method which makes use of stones, gravels, empty oyster shells, and other media as collectors. These are positioned in hard bottom areas where natural populations of oysters/mussels are known to occur.