7.5.1 Sustainable Fisheries

• Fisheries are always sustainable regardless of management practices

  False
• Order the following fishing methods from active to passive:

  1️⃣ Trawling

  2️⃣ Purse Seining

  3️⃣ Gill Netting

  4️⃣ Longlining
• What is one consequence of overfishing on marine ecosystems?

  Disruption of ecological balance
• Trawling is a fishing method that is highly selective and does not damage seafloor habitats

  False
• Trawling is a non-selective fishing method that can damage seafloor habitats
• Longlining is a fishing method that uses a long line with baited hooks
• Fisheries are an important source of food and income globally, providing a sustainable source of protein
• Common fishing methods include trawling, gill netting, longlining, and purse seining.
• Overfishing occurs when fish are caught faster than they can reproduce


  True
• Sustainable fisheries ensure that the catch does not exceed the maximum sustainable yield.
• What is one sustainability consideration for purse seining as a fishing method?

  Can catch some bycatch
• Gill netting is a highly selective fishing method that avoids bycatch completely.

  False
• What is purse seining used to catch?

  A school of fish
• Insufficient catch limits and monitoring can lead to illegal, unreported, and unregulated (IUU) fishing
• Match sustainable fisheries with their characteristics:

  Catch does not exceed maximum sustainable yield ↔️ Depletion of fish stocks

  Use of selective fishing methods ↔️ Use of non-selective fishing methods

  Effective regulation and enforcement ↔️ Illegal, unreported, and unregulated (IUU) fishing
• Sustainable fishing practices aim to maintain healthy fish populations and marine ecosystems over the long term.


  True
• Non-selective fishing methods like trawling can damage marine habitats
• Match aquaculture benefits with their descriptions:

  Controlled production ↔️ Helps prevent overfishing

  Selective breeding ↔️ Improves efficiency and sustainability

  Land-based or offshore systems ↔️ Reduces impact on marine habitats
• Environmental challenges in aquaculture include disease transmission, pollution, and escapement of farmed species
• Match sustainable and unsustainable fisheries with their characteristics:

  Catch does not exceed maximum sustainable yield ↔️ Overfishing leads to depletion of fish stocks

  Effective regulation and enforcement ↔️ Lack of regulation or illegal fishing

  Maintaining biodiversity ↔️ Damage to marine ecosystems
• Selective fishing methods help avoid bycatch
• Passive fishing methods rely on fish encountering stationary gear
• What type of fishing method uses a wall of netting in the water?

  Gill netting
• Active fishing methods involve moving the fishing gear through the water.


  True
• Overfishing can lead to the collapse of fish species and ecosystem imbalances.


  True
• Match the sustainable fishing practice with its effect:

  Catch limits ↔️ Prevent overfishing

  Selective fishing methods ↔️ Minimize bycatch

  Effective regulation ↔️ Enforce fishing rules

  Biodiversity maintenance ↔️ Balance marine ecosystems
• Aquaculture is the farming of aquatic organisms and is emerging as a sustainable alternative to wild fisheries
• Aquaculture faces environmental challenges such as disease transmission and pollution.

  True
• International cooperation is necessary to enforce fishing regulations and protect marine ecosystems.


  True
• Overfishing leads to the depletion of fish stocks because fish are caught faster than they can reproduce.


  True
• What economic incentive drives overfishing in certain areas?

  High commercial value
• Preventing overfishing is crucial for maintaining sustainable fisheries
• What is the purpose of catch limits in sustainable fishing practices?

  To prevent overfishing
• Implementing sustainable fishing practices is essential for protecting fishing communities and ensuring seafood availability.

  True
• Aquaculture helps maintain fish stocks by allowing controlled production and harvest of seafood.


  True
• Why are fisheries considered important globally?

  They provide food and income
• Overfishing leads to the depletion of fish stocks because the catch exceeds the maximum sustainable yield.


  True
• What are the two categories of fishing methods based on gear movement?

  Active and passive
• Trawling is a highly selective fishing method that minimizes habitat damage.

  False
• The sustainability of a fishing method depends on its selectivity, impact on habitats, and how well it is managed to prevent overfishing