Apologia Marine Bio mod 15 | Baamboozle - Baamboozle

Reverse Osmosis is the most promising method of desalinization of ocean water. Why and how does it work?

high presure system forces water through a semipermeable membrane. It uses less energy than distillation

what is happening in this picture and why?

horseshoe crab blood is harvested because it will clot when it detected bacterial toxins. It is used to check sterility in vaccines

What is this?

turbines that harness the energy of ocean waves and turns it into electricity

What is the difference between mariculture and aquaculture?

aquaculture is related to freshwater, mariculture is identified with seawater

What are the benefits and risks of closed mariculture?

more controlled, risks: dense populations-disease, accumulation of waste, very expensive, can't accommodate organisms with changing needs

What is closed mariculture?

farming marine organisms where the environment is completely controlled by the farmer

What is open mariculture?

farming marine organisms where conditions are subject to weather, pollution and changing seasons

How does marketing help us manage our marine resources?

Creative marketing to consumers increases demand for fish that may not initially be attractive to certain cultures

Why do we eat so much tilapia in America?

Marketing - advertisers gave it a more appealing name (Cherry Snapper)

What is bycatch?

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

What is a longline?

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

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)

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

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

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

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

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.

What is an exclusive economic zone?

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

What is mariculture?

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

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.

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

What is a non renewable resource?

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

What is a renewable resource?

Resources that can naturally replace harvested numbers.

What are gadoid fishes?

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

What are clupeoid fishes?

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