Total Tonnage of Fishing Vessels and Tonnage Reduced Every Year


Overfishing should be one of the main reasons for the reduction of fishery resources. To alleviate the pressure of overfishing, management and incentive measures should be established to reduce the number of fishing vessels and tonnage. This biodiversity indicator is the number of the tonnage of fishing vessels by year.




Tonnage and change (thousand tons)



Indicator Details


Fishery resources

PSBR model type

Response (R)

Corresponding targets


14.4 By 2020, effectively regulate harvesting and end overfishing, illegal, unreported and unregulated fishing and destructive fishing practices and implement science-based management plans, in order to restore fish stocks in the shortest time feasible, at least to levels that can produce maximum sustainable yield as determined by their biological characteristics

Aichi Biodiversity Targets:

Target 6: By 2020 all fish and invertebrate stocks and aquatic plants are managed and harvested sustainably, legally and applying ecosystem based approaches, so that overfishing is avoided, recovery plans and measures are in place for all depleted species, fisheries have no significant adverse impacts on threatened species and vulnerable ecosystems and the impacts of fisheries on stocks, species and ecosystems are within safe ecological limits.


The total tonnage of fishing vessels and the reduction in tonnage each year can reflect the fishing capacity of fishery. This indicator is the Response type in the PSBR model of the Biodiversity Indicators Partnership. Overfishing should be one of the major reasons for the reduction of fishery resources, and establishing management and incentive measures to reduce the number of fishing vessels and tonnage could alleviate the pressure of overfishing. The total tonnage of a country’s fishing vessels can represent the country’s fishing capacity to a certain extent. This indicator should be viewed in conjunction with the index of the total number of active fishing vessels, in order to avoid the operation of combined small ships.

Definition and Calculation

The number of vessels and tonnages with legal licenses issued by Fisheries Agency, Council of Agriculture


According to Taiwan Fisheries Yearbook of 2018, the total tonnage of powered fishing vessels was 571,040.57 tons, which was 9,514.12 tons fewer than that of 2017.

Data Management Authorities

Fisheries Agency, Council of Agriculture

Data Source/URL

Taiwan Fisheries Yearbook on the website of the Fisheries Agency, Council of Agriculture


Data Development Status


Data Providers

Fisheries Yearbook of the Fisheries Agency, Council of Agriculture

Investigation Year