Discover the By the Wind Sailors: Mysterious Blue Travellers of the Ocean

Visitors and locals strolling along the beaches of Newquay might have encountered peculiar, transparent objects washed up on the sands.

These are not your ordinary seaside debris nor are they remnants of plastic pollution as one might first guess. They are, in fact, living creatures known as ‘By the Wind Sailors,’ a type of hydroid that forms collective groups to traverse the oceans.

What are By the Wind Sailors?

By the Wind Sailors, scientifically grouped under hydroids, are fascinating marine animals that rely on the winds to sail across the water. Each colony comprises individuals joined together, functioning as a single entity. Atop these unique creatures is a sail, strategically positioned to harness the wind, guiding them on their vast ocean journeys. The direction they travel is dictated by this very sail structure, making them an extraordinary example of nature’s ingenuity in design.

Harmless Cousins of the Portuguese Man o’ War

While their appearance might draw comparisons to the notorious Portuguese Men o’ War, known for their painful stings, By the Wind Sailors are harmless. These creatures pose no danger to humans, allowing curious onlookers to observe without fear. The blue ring visible around them, often mistaken for a perilous aspect, is merely their tentacles which gradually lose colour and turn transparent as they wash ashore, leading to their jelly-like, plastic resemblance.

A Sight to Behold

Josh while out on a boat with Marine Discovery Penzance was fortunate to spot a large group, or raft, of these hydroids while navigating the waters around Newquay. This sighting highlights not only the beauty and mystery of marine life but also the constant discoveries and surprises that the ocean holds.

Why Do They Strand on Beaches?

The stranding of these creatures on beaches, while a natural occurrence, sparks curiosity and intrigue among scientists and beachgoers alike. The phenomenon primarily occurs when strong winds push them towards the shore, beyond their control, due to their dependence on the wind for movement.

In summary, the By the Wind Sailors are a testament to the wonders of the marine world, showcasing the diverse and intricate ecosystems that thrive beneath the waves and occasionally wash up right at our feet. Next time you spot these translucent sailors on the beach, take a moment to appreciate these harmless and fascinating sea travellers.