The total Fisheries production for the province of Bohol registered a 15.94 percent high increase from 8,816.54 metric tons in the third quarter of 2017 to a record of 10,221.87 metric tons in the third quarter of 2018. Across Fisheries subsectors covered by Quarterly Fisheries Surveys (QFS), Municipal Fisheries recorded the biggest growth with a 19.84 percent followed by the Aquaculture Fisheries that posted an increase of 15.48 percent. Conversely, Commercial Fisheries behaved a down trend in its production level. From the third quarter of 2017 at 269.10 metric tons, it dove to a total of 226.89 metric tons in the same quarter of last year, a two digit decrease at (16.06%). (See Table 1)
TECHNICAL NOTES
The Fisheries Production Survey of the Philippines Statistics Authority (PSA) is divided into four (4) major Fisheries Surveys. These are the Quarterly Commercial Fisheries Survey (QCFS), Quarterly Municipal Fisheries Survey (QMFS), Quarterly Inland Fisheries Survey (QIFS) and Quarterly Aquaculture Survey (QAqS). The commercial and municipal fisheries surveys aim to provide quarterly data on volume and value of fish production by species, by region and by province. The aquaculture surveys are intended to generate quarterly data on volume and value of cultured species by environment, by type of aquafarm, by region and by province.
The survey on commercial fisheries production covered 57 provinces and cities. For municipal fisheries and aquaculture surveys 81 provinces and cities were covered.
The sampling frames for the surveys of commercial and municipal fisheries were established in 2000 through a nationwide listing of landing centers (LCs). Updating of the lists was conducted over the years. The design used was a two-staged stratified random sampling with the landing centers as the first-stage sampling units and the fishing boats as the second stage sampling units.
The landing centers were stratified based on volume of fish unloaded. The province was the domain of the survey. Inland municipal fisheries included fishing in inland waters such as lakes, rivers, dams, marshes, swamps, etc. Household engaged in inland fishing was the unit of enumeration.
For aquaculture survey, the lists of brackish water fishponds, freshwater fishponds, freshwater fish pens/fish cages, marine fish pens/fish cages, oyster, mussel and seaweed farms by province served as sampling frames. Updating of the list frames for aquaculture was done simultaneously with the landing center during the previous years.