Magdalena Transition
The Magdalena Transition is a marine ecoregion in the eastern Pacific Ocean. It includes the coastal waters along the southwestern Baja California Peninsula, extending from Punta Abreojos in the north to Cabo San Lucas at the peninsula's southern tip.

The ecoregion includes San Ignacio Lagoon and Magdalena Bay. These lagoons include some of the northernmost mangroves on the Pacific Coast of North America. Gray whales ("Eschrichtius robustus") migrate annually along the Pacific Coast to mate in these lagoons.

The ecoregion is a transition between two marine realms, the Temperate Northern Pacific and the Tropical Eastern Pacific. Marine Ecoregions of the World includes the entire Magdalena Transition ecoregion in the Temperate Northern Pacific, but others, including John C. Briggs, conclude that the Tropical Eastern Pacific extends to the vicinity of Magdalena Bay.
Q17001151
marine ecoregion
UNK
Q178543
Baja California Peninsula
LOC
Q7260503
Punta Abreojos
LOC
Q1020776
Cabo San Lucas
LOC
Q7414296
San Ignacio Lagoon
LOC
Q803682
Magdalena Bay
LOC
Q100604978
northernmost mangrove
UNK
Q179154
Gray whale
Concept
Q7698325
Temperate Northern Pacific
LOC
Q7845790
Tropical Eastern Pacific
UNK
Q96742666
Magdalena Transition
UNK
Q96742666
Magdalena Transition
UNK
location
located on terrain feature