Term
| Which oceans have the highest productivity? |
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Definition
| Tropical Oceans/Low Latitude |
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Term
| Why does the size of the fish matter? |
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Definition
| The size of the fish feeds us details about its age. The larger the fish the older it is, according to its species. Fish that have lived longer are more susceptible to diseases and chemical pollution may be stored in their fat cells. Any predator that eats the fish will then be inclined to inherit those diseases and poison as well, and in larger quantities. |
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Term
| Why does the sex of the person eating the fish matter? |
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Definition
| Because of the high levels of mercury some fish contain and the what is does to the female body. Women of child-bearing age must be very careful and watch the amount of fish they eat, where they get their fish from, and why type of fish they are eating. The mercury levels in fish are of particular concern, along with PCBs and other chemical pollutants. These pollutants can affect the female reproduction system and cause birthing defects or pass the chemical along to the newborn through the womb. |
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Term
| Give an example of a Marine Food Chain. |
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Definition
Blue Whales
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Krill (Zooplankton)
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Diatoms (Phytoplankton) |
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Term
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Definition
| H.A.B.s or Harmful Algal Blooms |
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Term
Tragedy of the Commons:
When something is free, it will be used up... |
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Definition
Depletion of renewable resources by people who have shared and unmanaged access.
"If he's getting more; I want more." |
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Term
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Definition
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Term
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Definition
| Elkhorn and Staghorn is used to grow new coral |
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Term
| Whaling still takes place in...? |
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Definition
| Japan, Norway, and Iceland |
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Term
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Definition
| Food, Medicine, and Cosmetics (All of the Above) |
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Term
| Jellyfish are increasing in population because...? |
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Definition
| All causes are contributing to the increase in the jellyfish population. |
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Term
| Piracy has affected oceanography in what ways? |
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Definition
| Pirates have affected research on weather, killed scientists, and cost researchers billions of dollars (all of the above). |
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Term
| The Dubai Artificial Islands are affecting the environments of which organisms? |
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Definition
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Term
| Which countries are a part of the Arctic Council? |
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Definition
| All countries listed are a part of the Arctic Council. |
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Term
| The Loop Current in the Gulf of Mexico: |
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Definition
| Enters through the Carribbean current and exits through the Gulf Stream current. |
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Term
| The Eastern Trash Heap in the Pacific Ocean is the size of which U.S. state? |
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Definition
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Term
| What is the white flowy stuff that floats on the ocean surface? |
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Definition
| Herring semen (fish sperm). |
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Term
| List two of the ten top commercial fisheries. |
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Definition
Tuna
Haddock
Pollock
Herring
Shrimp
Sardines
Crab |
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Term
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Definition
| lives in the water column |
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Term
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Definition
Epifauna - on the surface of the sea floor
Infauna - live buried in the sediment of the sea floor
Nektobenthic - swim or crawl through the water above the sea floor |
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Term
| Fish don't sink because...? |
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Definition
| Swim bladders (O2,CO2,N2), constant swimming, or through currents (like sharks or rays). |
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Term
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Definition
| Blood cell, which has high salinity, is dropped in fresh water (low salinity). The fresh water tries to create an equilibrium and the cell ruptures. |
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Term
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Definition
| The Blood cell, which has high salinity, is balanced by salt water and swells up. |
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Term
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Definition
Contains everything above the Aphotic Zone, i.e. the euphotic and disphotic zone included.
This is the uppermost layer of sea water lit by the sun.
(Photos = light) |
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Term
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Definition
The upper part of the photic zone where the most biological productivity in the ocean occurs.
(Eu = good) |
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Term
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Definition
Though light is present in the disphotic zone, it's not light enough to allow photosynthesis to generate much carbohydrate as would be used by an autotroph throughout the day.
(Dys = difficult) |
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Term
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Definition
| Largest long-term average of catch that can be taken from a stock of fish without depressing the species' ability to reproduce. |
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Term
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Definition
Species caught that were not intended to be caught
(800x the fish being targeted) |
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Term
| Problems with overfishing |
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Definition
We don't know how many fish there are in the sea
The reproduction rate is unknown
Because fish are migratory we don't know where they live
We don't know who to blame for taking all the fish (fisheries and worldwide)
It's tough to enforce rules/laws worldwide for poaching, etc. |
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Term
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Definition
| The growing or farming of plants or animals in any water environment under controlled conditions. |
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Term
| Benefits/Advantages of Aquaculture |
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Definition
Less dangerous and harmful fishing technique
Decressed pressure on wild fisheries
Increase in job availability
Increases the food supply and dietary needs of others
More money |
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Term
| Disadvantages of Aquaculture |
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Definition
- Possible introduction of non-native species and GMOs if escape
- Predators
- Fish meals/Cannibalism
- Fish sewage - poop, diseases, lice, etc.
- Herbacides to control algae
- Drugs and Antibiotics to control diseases
- Anti-fouling paints so the poles don't rust - more chemical pollutants
- Destroying habitats for native species (specifically mangrove forests where yellow sharks live for shrimp & tilapia farming)
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Term
| Low Productivity in Tropics |
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Definition
| Pycnocline creates a barrier between the nutrient rich water underneath. Permanent Thermocline. Areas of active upwelling receive high productivity during El Nino, etc. |
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