BBC Oceans: Sea of Cortez

In 2008, BBC Two ran an eight part nature documentary series about the world’s oceans. The first episode is about the Gulf of California, or Sea of Cortez. The story begins with the near disappearance of hammerhead sharks in the region – wiped out by commercial fishing (mostly for shark fin soup marketed in Asia). But sad as that certainly is, a sea of change is taking place naturally. The dolphin population has increased, and sea lions are thriving after the local colony has adapted to fishing in deeper waters now that the sardines have thinned out. More threatening is the growing presence of the cannibalistic predatory Humboldt squids, who’ve mastered hunting in packs. Yet that presence has attracted large numbers of sperm whales who no longer need to migrate (at least not the females) in order to survive. The program also includes images of the hydrothermal vents along the San Andreas Fault, as well as the wreckage of Chinese vessel once smuggling immigrant workers to the us now becoming an artificial coral reef. The team includes expedition leader Paul Rose, maritime archaeologist Lucy Blue, maritime biologist Tooni Mahto, and environmentalist Philippe Cousteau (the grandson of Jacques Cousteau). While I mean no personal offensive – Mahto and Cousteau are definitely photogenic – the show focuses too much on them rather than on the beautiful wonders that are the program’s subject.