apologia marine bio mod 13 | Baamboozle - Baamboozle

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epipelagic zone

Study Slideshow

What is DOM

Dissolved organic matter, Organic material dissolved in ocean water (sugars, lipids,, cellulose)which picoplankton feed on

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What is vertical migration?

Daily movement of small marine organisms between the photic zone and deeper depths.

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What is the Microbial loop?

The flow of energy and nutrients in the epipelagic, beginning with the phytoplankton and DOM and the smallest zooplankton and making energy available to the maj

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What is the Neritic zone?

epipelagic waters lying over the continental shelf

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What is Meroplankton?

species of zoo plankton that spend only part of their lives as part of the planktonic community.

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How does the sea slug stay at the surface of the water?

By swallowing a bubble of air.

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What is the difference between neuston and pleuston?

Neuston live near at but not out of the surface of the water, pleuston project part of their body out of the water.

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The violet shell is a predator that suspends itself upside down at the surface of the water using air-filled bubbles. What type of organism does it feed on? Plankton, nekton or neuston?

neuston

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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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What is unique about the muscles of the nektonic organisms in the epipelagic?

They have red myoglobin rich interior muscles that are kept warmer for long distance swimming and white outer muscles for bursts of speed.

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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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Which epipelagic creatures undergo vertical migration and why?

Zooplankton daily leave the photic zone to deeper depths to escape predation.

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Why is primary production so much higher near the equator?

Constant wind blowing parallel to the equator, which pushes surface water away, bringing up nutrient rich deep water up to the surface,

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What is the difference between overturn and upwelling?

Upwelling occurs where there is a steady blowing wind. (coastal areas and equatorial upwelling)and is the process that carries colder nutrient rich water upward

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What happens in tropical regions where it doesn’t cool, has a distinct thermocline and doesn't have a steady wind blowing?

limited mixing

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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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