Fisheries biology and population dynamics of Tsushima Warm Current stock of chub mackerel Scomber japonicus

Abstract

Tsushima Warm Current stock of chub mackerel is a commercially important fishery resource that is caught mainly by purse seine fisheries of Japan, South Korea, and China. However, there are still many questions about the biology of the stock. Stock status has been at a low level since the 1990s and more effective resource management is required. In this paper, we made a review of resource management, such as fisheries and stock assessment, as well as the biology of this stock, such as distribution, migration, stock identification, and maturity. We also discussed topics that should be further studied in the future. In order to manage this stock more efficiently, it is necessary for Japanese scientists to conduct research together with scientists from related countries to understand the fisheries as well as the mechanisms of recruitment variability and migration patterns.