environamental

What is continental shelf?

zone near the coast with not deep water

what is euphotic zone?

the top 200m of the ocean where sunlight penetrates what is upwelling?

whats upwelling'?

whenb deep cold water with nutrients rises to the surface, happens when currents of wind púsh warm water away ant that space is filled by the cold water

what is overfishing'

catching fish faster than they can reproduce

what is bycatch?

unwanted animals caught by mistake

what is sonar and radar?

technology used to locate fish schools easily

what are minerals and chemical as a ocean rfesource?

source of salt magesium gold and even diamonds

what are waves and tidal energy as as a ocean rfesource?

using the movements of water to generate electricity

what is desalination as as a ocean rfesource?

removing salt from saltwater to get fresh drinking water

what is toursimg and transport as as a ocean rfesource?

ships carry outb 90% of wolrd trade, coral reefs attracxt millions of tursist

what is a trawl net'

drags along the seabed, it destroys bottom sea and corals

what is a drift net?

floting nets that drift with currents, they catch anything that hgoes by, which has a lot of bycatch

what is a purse seine?

large net that circles a school of fish, can take whole banks at once.

how can we solve by quotas?

legal limits on ammount of fish that can be caught

how can we solve by mesh size?

usongn larger holes in nets si juvenil fish can scape

how can we solve by closed seasons?

periods when fishing is banned to allow breeding

who can we solve by eez?

exclusive economic zone, the 200 nautical miles of ocean a country controls