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Showing posts with the label bioluminescence

Carnivals of the Sea

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From time to time, bandleaders have been inspired by and chosen to represent themes of the sea. Irving “Mac” McWilliams who was a fisherman at Las Cuevas created Wonders of Buccoo Reef to win the Band of the Year title in 1971. Peter Minshall’s Carnival of the Sea was the Band of the Year in 1979. Individual portrayals have dramatised sea creatures as giant, fearsome, awe-inspiring. Anjani Ganase, marine biologist, comments on some spectacular sea mas from the past.     Peter Minshall presented a Carnival of the Sea in 1979 and won the Band of the Year prize. His performance section was called Sea Serpent. Individually, the costumes encouraged sinuous movements. Together, the section created and moved in conga lines.   Although sea snakes are not found on coral reefs in the Caribbean, their presence in the Indian and Pacific Oceans is regarded with fondness. They are visual wonders underwater. While sea snakes are highly venomous, they are not aggressive. There ...

Adventure in Bioluminescence

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Duane Kenny is a Tobago adventure guide. Travel with him around Tobago from Pigeon Point to Charlotteville. Learn to “stand up paddle” (SUP) off Pigeon Point. Windsurf with his brother Brett at Radical Sports. In this adventure, Duane takes a small group to see the “lights in the lagoon” one moonless night. (This was first published in Newsday Tobago, November 28, 2019) Take a night when moon is on the wane and endless rain has been falling on the mangroves. Take four or five persons – the recommended minimum for a tour – who may not know each other too well: an artist, a practical do-it-fix-it man, a writer, a person helping humans with horses, and a non-swimmer. Put them together with an experienced guide. We arrive at the Pigeon Point base of the Radical Sports Limited Tobago, where our tour guide for the evening is Duane Kenny. His briefing is casual but direct. We will all wear life jackets.   We will all paddle; on no account should anyone just let the paddle ...

Time to Think Small

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Anjani Ganase, marine scientist, proposes a different way of looking at the world. “To think big, we first need to see the small things,” she says, as she looks into the ocean. What is the most abundant group of organisms in the oceans, and why do they matter? When I first started my degree in Marine Biology, I - like many others – was excited to begin exploring the world of fish, crabs, critters, whales and even sharks. To my surprise, we had to begin with the smallest of things, the foundation of all ecosystems, understanding the microbial universe. Microscopic organisms, although we can’t see them, are crucial for life and are constantly providing us with all essentials nutrients and removing our waste, they are the cogs in the wheel of life. Microorganisms are invisible to the naked eye and typically constituted of single-celled entities. Furthermore microorganisms are everywhere, yes everywhere! They can be found in deep scalding undersea volcanic vents and even on the s...

Take a walk in the wild

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On June 5, everyone on the planet – each of the seven billion of us – is invited to remember our place in nature. Human beings are not apart from nature, we are a part of nature. The theme for World Environment Day 2017 is “connecting people to nature – in the city and on the land, from the poles to the equator.” Here in Tobago, we are fortunate to be able to renew this connection in direct ways. No one has to go far to be in nature. Schools and families are encouraged to select an activity that awakens these connections. This feature was first published in the Tobago Newsday on June1, 2017 In Tobago, we are the best hosts. We can recommend all the places that delight visitors: the beaches, the waterfalls, the forest walks. How many of these places do we – apart from those who work as guides or tour operators – actually know intimately? This World Environment Day, we suggest that you renew your acquaintance with what brings visitors here. Sometimes we need t...

Lights in the Lagoon

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Jahson Alemu discusses the phenomenon known as bioluminescence, and conditions where it thrives: the protected Bon Accord Lagoon in Tobago is one of these rare spots.. Jahson is a marine biologist completing his PhD study on Buccoo Reef and its value in the ecosystem of south-west Tobago. This feature was first published in Tobago Newsday on Thursday, December 8, 2016.  Follow Jahson on twitter: @jahson_alemu. Imagine a world without light! That may seem difficult to imagine and it is likely you don’t think about it often! But for several animals part of their lives are spent in absolute darkness (such as at night or in the deep sea), and as such, they have evolved to cope with life in darkness by producing their own light, much like fireflies. This ability is called bioluminescence and simply put, it is the production of light due to an internal chemical reaction. More technically, it is the light energy produced as a result of the interaction of the compound luciferin wi...