<P> 75 ° F </P> <P> 72 ° F </P> <P> The narrow sea is home to a rich ecosystem . In addition to a wide range of endemic creatures, such as the critically endangered tiny vaquita, it hosts many migratory species, such as the humpback whale, California gray whale, killer whale, manta ray, Humboldt squid and leatherback sea turtle, and the world's largest animal, the blue whale . The unusual resident populations of fin whales and sperm whales do not migrate annually . The area near the delta of the Colorado river has a small remnant population of the totoaba fish . This region has historically been a magnet for world - class sport fishing activities, with a rich history of sporting world records . </P> <P> The region also has a rich history as a commercial fishery . However, the data vary wildly according to the species being studied, and the Gulf's ability to recuperate after years of overfishing remains uncertain . Moreover, changes in terrestrial ecology, such as the vast reduction in flow from the Colorado River into the Gulf, have negatively affected fisheries, particularly in the northern region . </P>

Where does the sea of cortez and pacific ocean meet