Bivalves and Environmental Research

The video features Romain, the scientific coordinator of the Under The Pole expedition, discussing the bivalve program in the Arctic. Bivalves, part of the mollusc family, have two shells and are used to trace environmental history due to their shell striae. The Arctic is a unique ecosystem where bivalves serve as environmental recorders. Under The Pole collaborates with LEMAR to collect and analyze bivalve shells, providing insights into climate, water temperature, and biological cycles, enhancing our understanding of the planet.

What role does Romain play in the Arctic expedition?

• He is the lead scientist of the expedition.

• He is responsible for logistics and supplies.

• He manages the financial aspects of the expedition.

• He coordinates the bivalve program and acts as a relay for Laurent.

Which family do bivalves belong to?

• Molluscs

• Crustaceans

• Echinoderms

• Cnidarians

Why is the Arctic ecosystem particularly interesting for studying bivalves?

• It has the warmest waters suitable for bivalve growth.

• It is the only place where bivalves can be found.

• It has a significant role in climate and is an isolated ecosystem.

• It is a typical ecosystem with no unique features.

How do bivalves help in tracing back environmental history?

• Through the striae on their shells that record growth and environmental conditions.

• By migrating to different areas based on climate changes.

• By changing color based on water temperature.

• By altering their shell shape in response to water salinity.

What is the similarity between tree rings and bivalve striae?

• Both are used to identify the species of the organism.

• Both are used to determine the age of the organism.

• Both are visible only under a microscope.

• Both are formed due to external injuries.

What is the main contribution of Under The Pole in the research program with LEMAR?

• Providing financial support for the research.

• Training new researchers in marine biology.

• Collecting and analyzing special species of bivalve shells.

• Developing new technologies for underwater exploration.

What information can be obtained from analyzing bivalve striae?

• The content of the water and environmental conditions when the striae were formed.

• The migration patterns of the bivalve.

• The genetic makeup of the bivalve.

• The age of the bivalve only.

What is the role of the precise machine used in the lab?

• To clean the bivalve shells for display.

• To measure the weight of the bivalve shells.

• To analyze the striae and provide information about past environmental conditions.

• To cut the bivalve shells into smaller pieces.

Why is understanding the biological cycles in the oceans important?

• To develop new marine species.

• To predict weather patterns accurately.

• To understand how our planet functions.

• To increase fish production for commercial purposes.

What is the ultimate goal of the research conducted by Under The Pole and LEMAR?

• To develop new technologies for marine exploration.

• To create a database of all marine species.

• To increase the population of bivalves in the Arctic.

• To understand the biological cycles in the oceans and the functioning of our planet.