Ocean Resources
What is the primary food resource obtained from oceans?
Fish and other seafood.
What is a continental shelf?
A shallow area of the ocean extending from the coast, rich in marine life.
What is overfishing?
Catching fish faster than they can reproduce.
What is aquaculture?
The farming of aquatic organisms.
What is a fishing quota?
A limit on the amount of fish that can be caught.
Name two non-food resources extracted from oceans.
Salt and oil.
Why are continental shelves important for fishing?
They are nutrient-rich and support abundant marine life.
How does overfishing affect fish populations?
Leads to depletion of fish stocks.
Name one advantage of aquaculture.
Can provide a steady supply of seafood.
How do marine protected areas help fisheries?
They provide safe habitats for fish to breed and grow.
What is the role of ocean currents in fisheries?
They distribute nutrients, supporting marine ecosystems.
Identify one major global fishing area.
The North-East Atlantic.
What is bycatch?
The unintentional capture of non-target species.
What is a potential environmental impact of aquaculture?
Waste from farms can pollute surrounding waters.
What is the purpose of closed fishing seasons?
They allow fish populations to recover during breeding seasons.
Explain how oceans contribute to the global economy beyond fishing.
Shipping, tourism, and energy production.
How do upwelling zones affect fish populations?
They bring cold, nutrient-rich water to the surface, boosting productivity.
How does overfishing impact marine ecosystems?
Disrupts food chains and habitat balance.
How can aquaculture lead to genetic pollution?
Farmed fish may escape and interbreed with wild populations.
How does international cooperation aid in sustainable fishing?
Countries can set shared rules to prevent overfishing.
Discuss the potential of oceans as a source of renewable energy.
Potential for tidal and wave energy generation.
Analyze the challenges faced by fisheries in the high seas.
Lack of regulation and enforcement leads to overexploitation.
Evaluate the long-term consequences of overfishing on food security.
Threatens global food supplies and livelihoods.
Assess the sustainability of aquaculture practices.
Practices vary; some are environmentally friendly, others are not.
Evaluate the effectiveness of international agreements in managing fisheries.
Agreements like UNCLOS aim to regulate fishing activities globally