Movements of pacific bluefin tuna (Thunnus orientalis) in the Eastern North Pacific revealed with archival tags

Tracking studies document fall migrations of bluefin tuna to cold waters off Point Conception and Monterey Bay.

“This link to SST is corroborated by tracking studies documenting fall migrations of bluefin tuna to cold waters off Point Conception and Monterey Bay (Boustany et al., 2010; Kitagawa et al., 2007).”

Both Mola mola and Thunnus orientalis use the California Current Large Marine Ecosystem as a foraging ground.

“Both Mola and bluefin tuna use the California Current Large Marine Ecosystem (CCLME) as a foraging ground.”

Tracking studies suggest that both Mola mola and Thunnus orientalis associate with productive upwelling zones in the California Current Large Marine Ecosystem.

“Tracking studies suggest that both Mola (Thys et al., 2015) and bluefin tuna (Boustany et al., 2010) associate with these productive upwelling zones in the CCLME.”

In these tracking studies, the departure of bluefin tuna often followed coastal advection of warm water due to downwelling.

“In these studies, the arrival of bluefin tuna in these waters generally coincided with the final days of major upwelling events, and their departure often followed coastal advection of warm water due to downwelling.”

In these tracking studies, the arrival of bluefin tuna in these waters generally coincided with the final days of major upwelling events.

“In these studies, the arrival of bluefin tuna in these waters generally coincided with the final days of major upwelling events, and their departure often followed coastal advection of warm water due to downwelling.”