Monthly Commercial Fisheries Survey 2009
Philippines, 2009
Reference ID
PHL-BAS-MCFS-2009-v1.0
Producer(s)
Bureau of Agricultural Statistics
Collection(s)
Metadata
Created on
Oct 12, 2021
Last modified
Oct 12, 2021
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Identification
Monthly Commercial Fisheries Survey 2009
Name | Abbreviation |
---|---|
Philippines | PHL |
PHL-BAS-MCFS-2009-v1.0
Commercial fishing is defined as the catching of fish with the use of fishing boats with a capacity of more than three (3) gross tons for trade, business or profit beyond subsistence or sport fishing . The Monthly Commercial Fisheries Survey is a statistical inquiry on commercial fishing that is conducted on an every-other-day frequency. Contractual Data Collectors (CDCs) are hired to conduct the survey of fishing boats unloading at the sample fish landing center. Data are gathered through actual interviews of respondents during peak unloading time using a structured questionnaire prepared at the Central Office of BAS. The target respondents are the fisherman, fishing boat operator, captain or any knowledgeable crew of the fishing boat.
The general objective of the activity is to generate information on the monthly volume of fish catch by fishing ground, tonnage class, fishing gear and species at the provincial, regional and national levels of disaggregation. Collection of commercial fisheries data is a probability survey done in places called fish landing centers where fishing boats of more than three (3) gross tonnage unload and trade their catch. Monthly commercial fisheries survey differs from quarterly commercial fisheries survey in terms of number of variables covered by the survey. Also, actual observations of fish unloadinngs by data collectors are required in the monthly survey whereas in the quarterly survey, monthly volume of fish unloadings for the reference quarter are gathered through recall of key informants.
There are three (3) types of landing centers, the traditional, those managed by the Philippine Fisheries Development Authority (PFDA) and Local Government Units (LGUs), and those owned by private individuals or corporations.
The general objective of the activity is to generate information on the monthly volume of fish catch by fishing ground, tonnage class, fishing gear and species at the provincial, regional and national levels of disaggregation. Collection of commercial fisheries data is a probability survey done in places called fish landing centers where fishing boats of more than three (3) gross tonnage unload and trade their catch. Monthly commercial fisheries survey differs from quarterly commercial fisheries survey in terms of number of variables covered by the survey. Also, actual observations of fish unloadinngs by data collectors are required in the monthly survey whereas in the quarterly survey, monthly volume of fish unloadings for the reference quarter are gathered through recall of key informants.
There are three (3) types of landing centers, the traditional, those managed by the Philippine Fisheries Development Authority (PFDA) and Local Government Units (LGUs), and those owned by private individuals or corporations.
Sample survey data [ssd]
Commercial Fish Landing Center and Fishing Boat
Version
Version 1- Edited at the province level, not anonymized, for internal use
2010-05-30
Scope
Topic | Vocabulary | URI |
---|---|---|
fisheries |
Coverage
All provinces; National coverage
Province is the lowest level of disaggregation
Commercial Fish Landing Center and Fishing Boat
All commercial fishing boats unloading in traditional fish landing centers
Producers and sponsors
Name | Abbreviation | Role |
---|---|---|
Bureau of Fisheries and Aquatic Resources | BFAR | Donor |
Sampling
The sampling frame used for survey of commercial fisheries is the list of traditional commercial fish landing centers by province. This survey utilizes a stratified random sampling with the province as the domain. The average volume of unloadings per day is the variable used in the stratification of the fish landing centers into three (3) strata, namely:
Stratum 1 - consists of the top producing landing center
Stratum 2 - consists of the major producing fish landing centers
Stratum 3 - consists of all other fish landing centers
The landing center serves as the primary sampling unit while the fishing boat serves as secondary sampling unit. Simple random sampling is used in drawing the sample landing centers from the stratum. The number of sample fish landing centers varies by province depending on the resources available for payment of wages of CDCs. Sample landing centers are the same throughout the year.
For 2009, funds allocated for the conduct of this activity allowed only to cover 21 provinces for three (3) months survey, April, May and June. Number of samples by stratum was as follows:
Stratum 1 - 45 samples out of total 50
Stratum 2 -43 samples out of total 106
Stratum 3 - 20 samples out of total 89
For the remaining months of the year, quarterly surveys were carried out in those sampled provinces. Quarterly surveys in non-sample provinces were conducted throughout the year.
Data collectors also do samplng on fishing boats that unload catch at the sample fish landing center.In cases of heavy unloadings, CDCs are instructed to do simple random sampling of boats. CDCs are reminded to have samples of every type of fishing gear used by the fishermen during the survey date and to have as many samples as he/she can. But if the number of unloading boats is 15 or less, a complete enumeration of boats shall be done.
Stratum 1 - consists of the top producing landing center
Stratum 2 - consists of the major producing fish landing centers
Stratum 3 - consists of all other fish landing centers
The landing center serves as the primary sampling unit while the fishing boat serves as secondary sampling unit. Simple random sampling is used in drawing the sample landing centers from the stratum. The number of sample fish landing centers varies by province depending on the resources available for payment of wages of CDCs. Sample landing centers are the same throughout the year.
For 2009, funds allocated for the conduct of this activity allowed only to cover 21 provinces for three (3) months survey, April, May and June. Number of samples by stratum was as follows:
Stratum 1 - 45 samples out of total 50
Stratum 2 -43 samples out of total 106
Stratum 3 - 20 samples out of total 89
For the remaining months of the year, quarterly surveys were carried out in those sampled provinces. Quarterly surveys in non-sample provinces were conducted throughout the year.
Data collectors also do samplng on fishing boats that unload catch at the sample fish landing center.In cases of heavy unloadings, CDCs are instructed to do simple random sampling of boats. CDCs are reminded to have samples of every type of fishing gear used by the fishermen during the survey date and to have as many samples as he/she can. But if the number of unloading boats is 15 or less, a complete enumeration of boats shall be done.
Response rate for the Monthly Commercial Fisheries Survey is 100%.
A raising factor derived from the total number of commercial fish landing centers over the number of samples by stratum is used to expand results of monthly surveys. This raising factor varies from one province to another.
Data Collection
Start | End | Cycle |
---|---|---|
2009-04-01 | 2009-04-30 | April round |
2009-05-01 | 2009-05-31 | May round |
2009-06-01 | 2009-06-30 | June round |
Face-to-face [f2f]
The Regional Agricultural Statistics Officer (RASO) is responsible for the regional level monitoring and supervision of the survey operations of the Provincial Operations Centers.
The Provincial Agricultural Statistical Officer (PASO) is the over-all supervisor in the province. As field supervisor, the PASO should ensure accuracy of data collection,completeness of the accomplished survey forms. As part of the PASO's tasks is the conduct of spot-checking and back-checking on the work of data collectors.
Number of data collectors depends on the number of sample landing centers in the province.
The Provincial Agricultural Statistical Officer (PASO) is the over-all supervisor in the province. As field supervisor, the PASO should ensure accuracy of data collection,completeness of the accomplished survey forms. As part of the PASO's tasks is the conduct of spot-checking and back-checking on the work of data collectors.
Number of data collectors depends on the number of sample landing centers in the province.
Data collectors use MCFS Form 1 in the collection of monthly fisheries data in traditional commercial fish landing centers. It is a one-page questionnaire in the English language. One form is intended for several boats unloading for the day. If a fishing boat unloads several species, CDCs could use several forms as needed.
MCFS Form 1 is a listing sheet type of form. It contains several data variables that includes general information on the sample fish landing center and information on boat, fishing effort, volume of fish unloadings by species, summary of unloadings for the day by gear type and remarks.
MCFS Form 1 is a listing sheet type of form. It contains several data variables that includes general information on the sample fish landing center and information on boat, fishing effort, volume of fish unloadings by species, summary of unloadings for the day by gear type and remarks.
Name | Abbreviation | Affiliation |
---|---|---|
Bureau of Agricultural Statistics | BAS | Department of Agriculture |
Data Processing
Data editing and data review processes start at the POCs. Inputs for the review include the survey returns, the summary sheets, the list of samples and expansion factors used.
First to check is the completeness of the questionnaires as to the number of samples. Missing data and unacceptable responses are reviewed. Correctness of units of measurement used for volume and price are also checked. Out of range prices are verified. Manual editing is done not only for completeness of desired information like volume and price by species but also for consistency of entries. Codes used for species, gears and fishing grounds are likewise checked.
First to check is the completeness of the questionnaires as to the number of samples. Missing data and unacceptable responses are reviewed. Correctness of units of measurement used for volume and price are also checked. Out of range prices are verified. Manual editing is done not only for completeness of desired information like volume and price by species but also for consistency of entries. Codes used for species, gears and fishing grounds are likewise checked.
Data Appraisal
Provincial and regional estimates of production are further validated through the use of auxiliary information and conduct of interviews of knowledgeable people in the fishing industry. Impact of different programs and policies implemented by the BFAR on the performance of catch of fishermen is also considered. Use of time series data by province and by species for catch comparison is also one way of appraising survey results.
Data access
Name | Affiliation | URI | |
---|---|---|---|
Director | Bureau of Agricultural Statistics | info@bas.gov.ph | http://beans.bas.gov.ph |
The datasets of this study are categorized under licensed files. Access to licensed datasets is through request and is only granted to Data Users/Researchers with a legally registered sponsoring agency (university, company, research centre, national or international organization, etc.).
The Data Users/Researchers must agree to comply with the following:
1. Fill up a Data Access Agreement that will be provided.
2. Copies of the restricted data or any data created on the basis of the original data will not be copied or made available to anyone other than those mentioned in this Data Access Agreement, unless formally authorized by the BAS.
3. The data will only be processed for the stated statistical purpose in the agreement and not for investigation of specific individuals or organizations. Data will not in any way be used for any administrative, proprietary or law enforcement purposes.
4. The dataset must not be made to match with other datasets.
5. The Data Users/Researchers shall not attempt to identify any individual person, family, business, enterprise or organization. If such a unique disclosure is made inadvertently, no use will be made as to the identity of any person or establishment discovered. The identification will not be revealed to any other person not included in the Data Access Agreement.
6. The Data Users/Researchers must observe security measures to prevent unauthorized access to licensed microdata acquired from the BAS. The microdata must be destroyed upon the completion of their research. Destruction of the microdata will be confirmed in writing by the Data Users/Researchers to the BAS.
7. Any books, articles, conference papers, theses, dissertations, reports, or other publications that employ data obtained from the BAS/BAS Electronic Archiving and Network Services (BEANS) will cite the source of data in accordance with the citation requirement provided with the dataset.
8. If there are any changes or additional requirements in the orginal request, the Data User/Researcher must apply for another request.
9. Breaches of the Data Access Agreement will be taken seriously and the BAS will take action against those responsible for the lapses if wilful or accidental. Failure to comply with the directions of the BAS will be deemed to be a major breach of the agreement and may involve recourse to legal proceedings. The BAS will maintain and share with partner data archives a record of those individuals and organizations which are responsible for breaching the terms of the Data Access Agreement and will impose sanctions on release of future data to these parties.
The Data Users/Researchers must agree to comply with the following:
1. Fill up a Data Access Agreement that will be provided.
2. Copies of the restricted data or any data created on the basis of the original data will not be copied or made available to anyone other than those mentioned in this Data Access Agreement, unless formally authorized by the BAS.
3. The data will only be processed for the stated statistical purpose in the agreement and not for investigation of specific individuals or organizations. Data will not in any way be used for any administrative, proprietary or law enforcement purposes.
4. The dataset must not be made to match with other datasets.
5. The Data Users/Researchers shall not attempt to identify any individual person, family, business, enterprise or organization. If such a unique disclosure is made inadvertently, no use will be made as to the identity of any person or establishment discovered. The identification will not be revealed to any other person not included in the Data Access Agreement.
6. The Data Users/Researchers must observe security measures to prevent unauthorized access to licensed microdata acquired from the BAS. The microdata must be destroyed upon the completion of their research. Destruction of the microdata will be confirmed in writing by the Data Users/Researchers to the BAS.
7. Any books, articles, conference papers, theses, dissertations, reports, or other publications that employ data obtained from the BAS/BAS Electronic Archiving and Network Services (BEANS) will cite the source of data in accordance with the citation requirement provided with the dataset.
8. If there are any changes or additional requirements in the orginal request, the Data User/Researcher must apply for another request.
9. Breaches of the Data Access Agreement will be taken seriously and the BAS will take action against those responsible for the lapses if wilful or accidental. Failure to comply with the directions of the BAS will be deemed to be a major breach of the agreement and may involve recourse to legal proceedings. The BAS will maintain and share with partner data archives a record of those individuals and organizations which are responsible for breaching the terms of the Data Access Agreement and will impose sanctions on release of future data to these parties.
As specified in the agreement under access conditions, users are required to cite the source of data in accordance with the citation requirement provided with the dataset. The citation requirement for this study is as follows:
"Bureau of Agricultural Statistics, Monthly Commercial Fisheries Survey 2009, Version 1 of the licensed dataset May 2010, provided by the BAS Electronic Archiving and Network Services. http://beans.bas.gov.ph"
"Bureau of Agricultural Statistics, Monthly Commercial Fisheries Survey 2009, Version 1 of the licensed dataset May 2010, provided by the BAS Electronic Archiving and Network Services. http://beans.bas.gov.ph"
Disclaimer and copyrights
The data users/researchers acknowledge that the BAS and the agency funding the study bear no liabilities and responsibilities for any particular, indirect, or consequential damages or any damages, whatsoever resulting from loss of use, or of data in connection with the use or for interpretations or inferences based upon such uses.
Copyright 2008-2009 © Bureau of Agricultural Statistics, All rights reserved.
contacts
Name | Affiliation | URI | |
---|---|---|---|
Director | Bureau of Agricultural Statistics | info@bas.gov.ph | http://beans.bas.gov.ph |