apologia marine bio mod 13 | Baamboozle - Baamboozle

Croatian 33 Public

epipelagic zone

Study Slideshow

How is the weather in India connected to the weather in Peru and Chile?

They are part of a phenomenon called El Nino Southern Oscillation (ENSO)-a sea saw effect of barometric pressure, resulting in extreme weather in both areas

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Name a large nektonic organism in the epipelagic that is not a carnivorous predator.

Baleen whale, whale shark or basking shark

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The microbial loop is sometimes referred to as a food web within a food web. Why?

The microbial loop is a small food web that utilizes DOM that leaks out of other organisms.

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Why are picoplankton important for the cycling of nutrients in the epipelagic?

They eat the DOM and in turn are eaten, bringing the organic material in the DOM back into the food web.

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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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As a rule, most overturn occurs where? When is primary production the highest?

temperate and warmer polar latitudes, during the winter. however spring has the most primary production because that is when there is more sunlight

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Why can cyanobacteria survive in nutrient poor water?

They are nitrogen fixers, gaining nitrogen from N2 gas dissolved in the water.

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What causes equatorial upwelling?

constant wind blowing parallel to the equator, pushing surface water away

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Describe the differences in appearance between a nektonic organism and a planktonic organism.

A planktonic organism will have something to hinder its descent in the water column, a nektonic organism will be streamlined to prevent drag.

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What is the difference between the prefixes 'mero" and "holo"?

"mero" means part and "Holo" mean whole

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What is a Pteropod? What does Pteropod mean?

a member of the Mollusca phylum, it means winged foot

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Why did scientists in the past believe that diatoms and dinoflagellates were the main source of primary production in the open ocean?

because standard plankton nets did not catch any of the microplankton.

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Why is primary production so high at the equator?

The prevailing winds that blow parallel to the equator continuously bring up nutrient rich water, providing the nutrients needed for primary production(and sun)

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What is the most abundant group of zooplankton in the epipelagic?

copepods - a group of small crustaceans found in nearly every freshwater and saltwater habitat.

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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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What is so beneficial about cyanobacteria?

They are picoplankton that are nitrogen fixers.

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