Marine Biology and Conservation Concepts

The video discusses the vastness and productivity of the oceans, highlighting their role in producing oxygen and supporting biodiversity. It covers the exploration of deep ocean habitats, the Census of Marine Life, and the impact of human activities like fishing. Technological advances in ocean exploration, such as ROVs and genetic barcoding, are also discussed. The video emphasizes the importance of conservation efforts to protect ocean biodiversity and address challenges like climate change and ocean acidification.

What percentage of the Earth's surface is covered by oceans?

• 70%

• 60%

• 50%

• 80%

What was the main goal of the Census of Marine Life?

• To map the ocean floor

• To improve understanding of marine biodiversity

• To find new fishing grounds

• To study ocean currents

What is the term used to describe the changing expectations of ocean productivity over time?

• Marine transition

• Oceanic drift

• Shifting baselines

• Baseline shift

Which technology allows scientists to sample deep ocean habitats remotely?

• Underwater drones

• Submersible cameras

• Remotely operated vehicles

• Sonar systems

How do satellite tags help in marine research?

• By measuring ocean temperature

• By tracking animal movements

• By capturing underwater images

• By collecting water samples

What is genetic barcoding used for in marine biology?

• To track fish migrations

• To identify species accurately

• To measure ocean depth

• To analyze water quality

What surprising discovery was made about a shrimp species during the Census?

• It was found in the Arctic

• It was thought extinct but found alive

• It can survive without water

• It glows in the dark

What percentage of marine species are estimated to still be undiscovered?

• 10%

• 25%

• 50%

• 91%

What is a major concern for ocean health mentioned in the transcript?

• Coral bleaching

• Overfishing

• Ocean acidification

• Plastic pollution

Why is global collaboration important in ocean conservation?

• It helps in sharing equipment

• It speeds up data collection

• It reduces research costs

• Marine organisms cross international boundaries