A bioenergetics and population dynamics coupled model that includes a full life cycle size/growth-dependent mortality function was developed to better understand stock fluctuations. As an example, the applied chub mackerel ( Scomber japonicus ) as it shows large fluctuations in western North Pacific. The dependency parameters for growth/size were adjusted achieve realistic from 1998 2018. Two t...

The Japanese archipelago is located at the periphery of continent Asia. Rivers in archipelago, separated from Asia by about 17 Ma, have experienced an intermittent exchange freshwater fish taxa through a narrow land bridge generated lowered sea level. As Korean Peninsula and were not covered ice sheet during glacial periods, phylogeographical analyses this region can trace history biota that we...

Chub mackerel (CM), Scomber japonicus, is a commercially important fish species in pacific countries including South Korea and its rapid quality deterioration by various spoilage mechanisms while marketed has been reported, leading to dramatic decline of the market price. To overcome this problem, combination superheated steam roasting (270 °C for 4 min) hot smoking (70 °C) on CM fillets was ap...

Body condition refers to an array of physiological or nutritious states in animals, but body is typically measured using a single metric animal behavior studies. In this paper, we conducted three-day laboratory study evaluate whether metrics affected movement wild-caught creek chub (Semotilus atromaculatus) at 16 and 22°C. Movement was counted between two circular tanks connected by straight co...

Finlets, which are small non-retractable fins located on the body margins between the second dorsal and anal fins and the caudal fin of scombrid fishes, have been hypothesized to improve swimming performance. The kinematics of three posterior finlets of the chub mackerel, Scomber japonicus, were examined using three-dimensional measurement techniques to test hypotheses on finlet rigidity and fu...