Apologia Marine Bio mod 15 | Baamboozle - Baamboozle

Croatian 23 Public

Ocean Resources

Study Slideshow

What are clupeoid fishes?

Small plankton eating fishes that travel in large schools. Anchovies, sardines, herrings

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What are gadoid fishes?

large bottom dwelling fishes. Cod, pollock, haddock and Hakes

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What is a renewable resource?

Resources that can naturally replace harvested numbers.

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What is a non renewable resource?

Resources that are not capable of replacing harvested numbers. minerals, natural gas,

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What is a sustainable yield?

The number of individuals in a population that can be harvested without reducing the size of the population or letting it grow

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What is a maximum sustainable yield?

the size of a natural population at which it produces a maximum rate of increase, typically at half the carrying capacity.

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What is mariculture?

The use of farming techniques to grow and harvest marine animals and plants

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What is an exclusive economic zone?

Resources found up to 200 miles off shore belong exclusively to that country

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What is reverse osmosis?

a water purification process that uses a partially permeable membrane to separate ions, unwanted molecules and larger particles from drinking water.

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What are the two types of costal areas where fishing resources are the richest?

Areas of costal upwelling- greatest supply of nutrients, Wide continental shelves - easy to get to by man

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describe trawling.

a method of fishing that involves pulling a fishing net through the water behind one or more boats. dragging it on the bottom

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describe purse seine fishing

fishing that uses a net, called a seine, that hangs vertically in the water with its bottom edge held by weights, and a draw string at the top to close it

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How are most clupeoid fish utilized?

because of their small size, they are mostly ground into a fish meal that is used as a protein supplement for other foods

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Why do we look for Tuna that says "dolphin safe"?

when a pod of dolphins was spotted, there would be a school of yellow fin tuna right below them, so a net was used to catch the tune (and dolphin)

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What is a longline?

floating mainlines extending for 100km on the ocean surface, mainline has 2000 vertical lines with baited hooks.

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What is bycatch?

the unwanted fish and other marine creatures caught during commercial fishing for a different species.

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