“Ocean: A body of water occupying about two-thirds of a world made for man – who has no gills.”
– Ambrose Bierce
Some weeks ago, I was lucky, so extremely lucky, to came across 3 Blue whales Balaenoptera musculus off Sao Miguel, Azores. I’ve seen loads of both Fin and Bryde’s whales so I had expected the Blues to be the same but bigger. I was wrong, so terribly wrong. Their enormous size makes you feel insignificant but, at the same time, the peace and the slowness of their swimming makes you feel safe and comfortable. An encounter with these blue giants should therefore sum up the relationship between the oceans (and nature in general) and humans.
It’s not been the case. Humans have killed whales for centuries and some whaling structures are still kept around the Azorean harbours, only as past times witnesses. Fortunately, the Azoreans switched whale hunting for whale watching some years ago and, although the whale watching business also have an obvious dark side, the situation is undeniably better nowadays. The same happens in other corners of the world, especially since the International Court of Justice finally banned the Japanese whale “research” in March 2014.
Whales have traditionally attracted everybody’s attention but their prosecution is just one of the threads the ocean and its inhabitants face. I could now talk about my beloved tubenoses, the most endangered seabird species. But the ocean is everything. Having worked in the Canary Islands, one gets aware of how ocean-dependant most of in-land ecosystems are. The Azores aren’t an exception and some endemic taxa wholly depends on the oceanic environment. Azorean bullfinch Pyrrhula murina is the icing on the cake of a very charismatic Macaronesian habitat: the laurel forest.
Its origin is none other than the ocean: The sun warms up the water-rich air over the water surface and hence it ascends along the steeply slopes while its temperature decreases. Eventually, it reaches a point where the temperature is that low that the water condensates forming clouds. Those clouds stop ascending when they hit a wall created by the constant hot high winds predominant in the region. At this point, the clouds are carried by the wind on its direction but, when they hit a mountain area such as those oceanic islands, they create a sea of clouds. Some plant species such as the Laurel take advantage of the situation by fixating this water suspended in the air. They effectively work as natural desalination plants originating this stunning landscape:
So it’s not a coincidence that we saw both Blue whale and Azorean bullfinch within a 50 km. radius. Today, in the World Oceans Day, I want to point out the importance of the oceans not only for charismatic animals like whales but also for in-land high biodiversity areas and their endangered (sometimes endemic) species. To preserve one habitat while forgetting about the others would be just focusing on the palliative cares of a sick planet without actually understanding the nature of the disease.