Larval Fish Assemblage Around the Spawning Ground of Japanese Eel

Spawning Migration of the European Eel

Spawning Sites of the Japanese Eel in Relation to Oceanographic Structure and the West Mariana Ridge

The Japanese eel, Anguilla japonica, spawns within the North Equatorial Current that bifurcates into both northward and southward flows in its westward region, so its spawning location and larval transport dynamics seem important for understanding fluctuations in its recruitment to East Asia. Intensive research efforts determined that Japanese eels spawn along the western side of the West Maria...

Does larval duration contribute to population genetic isolation of the Japanese eel Anguilla japonica?

Japanese eel, Anguilla japonica Temminck & Schlegel, is a temperate catadromous fish with a long migratory loop and lengthy leptocehalus stage. Its freshwater distribution ranges from Taiwan, through Mainland China, Korea, and north to Japan (Tesch 2003). The spawning ground of this species is presumed to be in the western Mariana Islands near 14–16 N 142 E (Tsukamoto 1992, 2006). The leptoceph...

Oceanic spawning migration of the European eel (Anguilla anguilla).

European eels (Anguilla anguilla) undertake a approximately 5000-kilometer (km) spawning migration from Europe to the Sargasso Sea. The larvae are transported back to European waters by the Gulf Stream and North Atlantic Drift. However, details of the spawning migration remain unknown because tracking eels in the Atlantic Ocean has, so far, eluded study. Recent advances in satellite tracking en...

Migratory Restlessness and the Role of Androgen for Increasing Behavioral Drive in the Spawning Migration of the Japanese eel

Migratory restlessness refers to a type of locomotor activity observed just before the onset of a migration. This behavior is primarily known in birds, where it is considered to be an indicator of the urge for migration. In contrast, little is known about migratory restlessness in fishes. To confirm migratory restlessness in a fish, we measured the locomotor activity of the Japanese eel, Anguil...