Marine Conservation and Biodiversity Assessment

The video discusses ocean biodiversity, focusing on biodiversity hotspots and research by Boris Worm and Lisa Balance. It highlights the Census of Marine Life project and the Global Marine Species Assessment, which aims to identify endangered species. Conservation strategies, such as creating marine reserves and reducing bycatch, are proposed to protect ocean biodiversity.

What is the primary purpose of identifying biodiversity hotspots in the ocean?

• To promote tourism

• To study ocean currents

• To locate key areas for conservation efforts

• To increase fishing activities

What unexpected finding did Boris Worm discover about one of the ocean hotspots?

• It had the highest concentration of food

• It had low surface water temperatures

• It had high surface water temperatures but low food concentration

• It was located near a volcano

What common feature did Lisa Balance find in ocean hotspots for marine mammals?

• Deep ocean trenches

• Proximity to land

• Boundaries between ocean currents

• High temperatures

What surprising discovery was made by the Census of Marine Life in the Arctic?

• Only fish were found under the ice

• The ice was too thick for any life

• Large numbers of species live below thick ice layers

• No species were found under the ice

What attracts species to congregate around underwater volcanoes?

• Abundant sunlight

• Low water pressure

• Warmth and nutrients

• High oxygen levels

What is one of the criteria used by the Global Marine Species Assessment to evaluate species?

• The size of the population

• The species' color

• The species' speed

• The species' diet

Why is it challenging to assess the geographical distribution of fish?

• Fish are too small

• Fish are highly mobile

• Fish are not affected by currents

• Fish live too deep

What is one proposed method to help preserve species like leatherback turtles?

• Increase fishing quotas

• Build more aquariums

• Introduce new predators

• Create migration corridors

What is 'bycatch' in the context of fishing?

• Catching unwanted fish that are often dead or dying

• Catching fish using nets

• Catching only the desired fish

• Catching fish in protected areas

How can commercial fishing boats reduce the problem of bycatch?

• By increasing fishing hours

• By using more selective equipment

• By fishing in deeper waters

• By using larger nets