species of zoo plankton that spend only part of their lives as part of the planktonic community.
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15
What causes equatorial upwelling?
constant wind blowing parallel to the equator, pushing surface water away
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15
How does the sea slug stay at the surface of the water?
By swallowing a bubble of air.
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15
What is the difference between the prefixes 'mero" and "holo"?
"mero" means part and "Holo" mean whole
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15
What is a form of camouflage used in the epipelagic and why?
Counter shading, because it is open sea, with nothing but the sky and the deep ocean to blend in with
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15
Is Primary production in the ocean water near the south pole greater, less than or the same between the summer and the winter?
Less in the summer and greater in the winter because there is more sunlight in the southern hemisphere in the winter.
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15
what happens in polar regions where all the water is cold, and there is no thermocline?
Continuous mixing, however, primary production is limited by the sunlight which varies depending on the season
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15
What is the Neritic zone?
epipelagic waters lying over the continental shelf
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15
What is the most common reason for vertical migration?
nocturnal vertical migration, organisms ascend to the surface around dusk, remaining at the surface for the night to feed
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15
Larvaceans are important predators in the epipelagic, as well as providing an important food source for other organisms. What do they eat and what do they provide?
a. they eat the pico and nano plankton b. they produce and shed mucous coverings many times as they grow.
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15
How do the mechanisms used to stay afloat differ between the nekton and the neuston?
Nekton need to move so they have use drag. The neuston are planktonic so they can use drag as well as buoyancy
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monster
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fairy
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fairy
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thief
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15
What is so beneficial about cyanobacteria?
They are picoplankton that are nitrogen fixers.
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seesaw
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shark
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rocket
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banana
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15
What happens in tropical regions where it doesnโt cool, has a distinct thermocline and doesn't have a steady wind blowing?