L. japonica is short-lived with early maturity and fast growth rates. They reproduce only once in their lifetime gathering in big groups during mating season and making them easy target for fishermen. There is little information on the stock size available and squid trawling is mainly operated within the South China Sea. Due to a great percentage of the unidentified catch, mainly by artisanal fleets, stocks can be in danger. Coastal stocks are already overexploited whereas pelagic stocks seem to be moderately fished.
In general, incidental bycatch of marine mammals may occur but is very low. Globally, the mid-water trawling fishery discard rate is low. The survival rate of these discards is unknown but tends to be low because midwater trawl mainly targets adult squid aggregations especially for market value. There is a lack of information for the ecosystem and food chain effects on squid, which is an important prey for numerous pelagic species. Midwater trawling has no impact on the bottom habitat.
Information on Loligo japonica is scarce and details regarding a management plan are not available.