Capture rate of offshore fish species

內容簡述

By selecting several species representing each trophic strata and obtain their catch per unit effort (CPUE), we can understand and evaluate the changing trends of coastal fishery resources, formulate the relevant fishery management measures, and hope to achieve reasonable resource development and sustainability. utilization.

Indicator Details

Orignal name of the indicator: offshore catch per unit of effort

Themes

Fishery resources

PSBR model type

State (S)

Corresponding targets

SDGs

Proportion of fish stocks within biologically sustainable levels

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.

Background

The ratio of "yield of catch" to "working time (effort)"is called Yield of Catch Per Unit Effort (CPUE). However, there is no effort data available, therefore it is impossible to calculate the CPUE. As a result, VDR (voyage data recorder) data is used to standardize "working time" and in combination with the data from investigation reports of each port to estimate the "Catch Rate".

Definition and Calculation

To estimate the catch rate, specific area (space), time (year, month, day), and representative fishing gears/methods are first set, then the data of VDR is used, which is calculated as nautical operation time-sailing time = operation time, in combination with the capture data of various fishing gear and methods reported by each port.

Updates

No data currently available

Trends

Data Management Authorities

Fisheries Agency, Council of Agriculture

Data Source/URL

Data Development Status

II-1

Id

I.061402