Atlantic Ocean marlin fishery and climatic oscillations dataset

Climatic oscillations affect fish population dynamics, ecological
processes, and fishing operations in maritime habitats. This study
examined how climatic oscillations affect catch rates for striped, blue,
and silver marlins in the Atlantic Ocean. These oscillations are regarded
as the primary factor influencing the abundance and accessibility of
specific resources utilized by fishers. Logbook data were obtained from
Taiwanese large-scale fishing vessels for climatic oscillations during the
period 2005–2016. The results indicated that the effect of the Subtropical
Indian Ocean Dipole on marlin catch rates did not have a lag, whereas
those of the North Atlantic Oscillation, Atlantic Multidecadal
Oscillation, Pacific Decadal Oscillation, and Indian Ocean Dipole had
various lags. Pearson’s correlation analysis was conducted to examine the
correlations between atmospheric oscillation indices and marlin catch
rates, and wavelet analysis was employed to describe the influences of the
most relevant lags. The results indicated that annual atmospheric
fluctuations and their lags affected the abundance and catchability of
striped, blue, and silver marlins in the study region. This, in turn, may
affect the presence of these species in the market and lead to
fluctuations in their prices in accordance with supply and demand.
Overall, understanding the effects of climatic oscillations on fish
species are essential for policymakers and coastal communities seeking to
manage marine resources, predict changes in marine ecosystems, and
establish appropriate methods for controlling the effects of climate
variability.