Krill: meaning, definitions and examples

Etymology

• The word 'krill' comes from the Norwegian word for 'young fry of fish,' showing its connection to early stages of aquatic life.
• Originally, the term was used for small fish but later specifically referred to these tiny crustaceans that are often found in cold waters.

Ecology

• Krill play a crucial role in the ocean food web, converting phytoplankton into a resource for larger animals like whale species.
• These animals can form massive swarms, sometimes comprising millions of individuals, making them a significant biomass in the ocean.
• They help regulate the carbon cycle through their feeding habits, as they eat phytoplankton that absorbs carbon dioxide.

Nutrition

• Rich in omega-3 fatty acids, krill oil is considered a health supplement, praised for its anti-inflammatory properties.
• Some cultures have traditionally used krill as a food source, although it's mostly known as fish food today.

Pop Culture

• The cartoon movie 'Finding Nemo' features various marine life, including creatures that would share the same habitat as krill.
• Krill's significance is highlighted in documentaries about marine life, depicting their role in ocean ecosystems.

Research

• Scientists study krill for their role in understanding the impacts of climate change on marine ecosystems.
• Research indicates that krill populations are affected by changes in sea ice and temperature, which can impact larger species reliant on them.