LECTURE

The Glowing Sea

BY ALEXANDER ON MAY, 2024

AGENDA

➀⠀Introduction and Basics ➁⠀Biochemistry and Organisms ➂⠀Marine Bioluminescence ➃⠀Research and Applications

➀

Introduction and Basics

TERM

Bioluminescence is the ability of living organisms to emit light as a result of chemical reactions. This phenomenon captures the attention of not only scientists but also nature enthusiasts due to its beauty and mystery. In this presentation, we will explore the key aspects of bioluminescence, its biochemical foundations, ecological role, and applications.

ANCIENT The first mentions of the glowing sea can be found in ancient Greek texts

17TH CENTURY Scientists began to study this phenomenon in detail in the 17th century

19TH CENTURY In the 19th century, Raphael Dubois discovered luciferin and luciferase

➁

Biochemistry and Organisms

BIOCHEMICAL FOUNDATIONS

Bioluminescence occurs due to a reaction between substances called luciferin and luciferase, in which luciferin oxidizes under the action of luciferase releasing light, and this reaction requires oxygen and often involves magnesium ions and other cofactors. This phenomenon attracts attention and is used in various fields, from science to art.

ORGANISMS CAPABLE OF BIOLUMINESCENCE

Fireflies: use light to attract mates. Jellyfish: use light for protection. Deep-sea fish: attract prey or deter predators. Bacteria: live in symbiosis with marine organisms.

➂

Marine Bioluminescence

ECOLOGICAL ROLE

Bioluminescence helps organisms survive and thrive in their environments by serving several key functions. It can be used for camouflage, attracting mates, and communication within and between species. Predators may use bioluminescence to lure prey, while prey use it to deter predators. In deep-sea ecosystems, bioluminescence also provides essential light for navigation and finding food.

MARINE BIOLUMINESCENCE

Bioluminescence is especially common in marine environments. Marine organisms use light for various purposes, from protection to hunting. The ocean depths, where sunlight does not penetrate, are particularly rich in bioluminescent organisms.

GEOGRAPHY

⠀⠀MOSQUITO BAY ⠀⠀VIEQUES, PUERTO RICO ⠀⠀One of the brightest ⠀⠀bioluminescent bays

LUMINOUS LAGOON JAMAICA This lagoon is famous for its shimmering waters

HA LONG BAY⠀⠀ VIETNAM⠀⠀ This UNESCO World Heritage site ⠀⠀ is home to glowing plankton⠀⠀

➃

Research and Applications

SCIENTIFIC RESEARCH AND STUDY METHODS

Modern research on bioluminescence uses various methods, from field observations to laboratory experiments. New technologies, such as high-sensitivity cameras and spectrometers, allow scientists to study this phenomenon more accurately.

Bioluminescence inspires artists and writers. In literature and cinema, glowing organisms often symbolize mystery and magic. Visual effects based on bioluminescence are widely used in art and design.

CONCLUSION

Bioluminescence is a fascinating natural phenomenon that plays a vital role in ecosystems and has numerous practical applications. Research and understanding of this process continue to evolve, opening new horizons for science and technology.

Questions