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6. Why is plastic a threat to fish?
- Floats to the bottom and covers the sea bed-stops the food cycle.
- It looks like food and remains in the water - kills the fish.
- It remains in the water and can cut the fish.
7. Is it legal to dump flyash in to the sea, why?
- No, it can be used as a source of energy!
- No longer allowed in UK. seabed is covered-food cycle is stopped.
- Yes, it dosen't harm the area.
8. Why is fertilizer run-off bad for fish stocks?
- Causes algal bloom - can be toxic to some fish.
- Causes algal bloom which suffocates the fish.
- It's not bad- can be an alternate food source for the fish.
9. What are trawl nets and why are they a threat to fish stocks?
- Nets that drag along the sea bottom and so disrupt the fish.
- Taporing tube shaped and can catch vast amounts of fish at a time.
- Small net and so are not threats
10. Why are seine nets a threat to natural fish stocks?
- Surround a whole shoal - none esacpe. Vast amount caught.
- They electricute fish as they catch them - cannot escaspe.
- They destroy the sea bed.