Research regarding the ecological roles of top predators in the deep sea

JAMSTEC is conducting studies regarding the ecological roles of top predators in deep Suruga Bay. Top predators such as wolves in forests are known to play an important role in ecosystem functioning and maintenance in various environments, and their loss causes irreparable damage to each ecosystem. In the deep sea, however, the top predator species remain unclear at most locations. However, large predatory fish have been unrestrictedly caught as marine resources, some of which have already been depleted because of overfishing.
To understand the roles and importance of top predators in the deep sea, JAMSTEC is currently developing observational instruments, conducting research cruises, and establishing an ecosystem model that visualizes the relationships between predators and prey in deep Suruga Bay, particularly under SDG14.2 (sustainable management and protection of marine and coastal ecosystems to achieve healthy and productive oceans) and SDG14.4 (effective regulation of harvesting, and end of overfishing, illegal, unreported and unregulated fishing and destructive fishing practices, and fulfillment of science-based management plans). Finally, JAMSTEC will present a sustainable balance of standing stocks and hauls from the deep sea for natural resource management under the SDG14 goal.

Bait camera used to understand the biodiversity and biomass of the top predators in the deep sea
Top predator recorded using of bait camera in deep Suruga Bay

Department of Marine Biodiversity Research