Chp.14 Oceans-Life Flashcards

0
Q

How much percent of the ocean is salinity?

A

3.5%

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1
Q

What is the difference between Plankton and Nekton?

A

Nekton can move itself, Plankton can’t.

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2
Q

What is the biggest influence for ocean temperature?

A

Latitude

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3
Q

What are the main elements in seawater?

A

Chlorine, Sodium, Sulfate, Magnesium

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4
Q

What is used to establish marine life zones?

A

Ocean Depth, Distance from shore, Ocean Light

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5
Q

Dentist of seawater is most effected by??

A

Water Temp., and Salinity

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6
Q

Oceanic Photo Synthetic productivity varies because of?

A

Seasonal Changes Development of a thermocline

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7
Q

What is most of earths biomass??

A

Plankton.

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8
Q

Define Benthos.

A

Bottom Dwelling sea life

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9
Q

Why do high latitude regions lack a thermocline?

A

The water is isothermal

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10
Q

What is the ATOC experiment? What are the negatives?

A

A thing where they see the time travel of similar sound signals through the sofar channel now and in the future. It hurts whales.

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11
Q

Does the oceans temperature change rapidly?

A

No. It has unique Properties.

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12
Q

What is zooplankton?

A

Zoo=animal plankton=wandering

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13
Q

What is the eupotic zone?

A

A part of the photic zone where light is strong

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14
Q

What is a Phynocline?

A

A rapid change in density

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15
Q

Why are there more creatures in the netric zone then the oceanic zone?

A

There is more light.

16
Q

Why does a top carnivore benefit more from a food web not a food chain

A

There are more sustainable food options.

17
Q

How much of energy is transferred through tropic levels??

A

About 10%

18
Q

What are two ways in which primary productivity is accomplished?

A

Two factors influence a region’s photosynthetic produc- tivity: availability of nutrients (such as nitrates, phosphorus, iron, and silica) and the amount of solar radiation (sunlight).

19
Q

Why do high latitude waters lack a pyhnocline

A

Temperature effects density

20
Q

What 2 areas have HIGH salinity on the earth.

A

Great Salt Lakes, Dead Sea

21
Q

How is the ocean layered? What occurs at each of those layers?

A

Shallow/Surface Mixed Zone, transition mixed zone, deep zone.
SM-uniform temp, vary due to seasons and lat., 2%
T-clines,18%
D-No light, high density, very cold.,

22
Q

What are the two processes desalination plants use to make drinkable water?

A

Reverse osmosis, desolation.

23
Q

What is the relation between density and depth?

A

The deeper the denser

24
Q

What are the processes that can affect the salinity of the water?

A

Evaporation, sea ice, glaciers, run off, precipitation.

25
Q

What 2 areas have HIGH salinity on the earth.

A

Great Salt Lakes, Dead Sea

26
Q

How is the ocean layered? What occurs at each of those layers?

A

Shallow/Surface Mixed Zone, transition mixed zone, deep zone.
SM-uniform temp, vary due to seasons and lat., 2%
T-clines,18%
D-No light, high density, very cold.,

27
Q

What are the two processes desalination plants use to make drinkable water?

A

Reverse osmosis, desolation.

28
Q

What is the relation between density and depth?

A

The deeper the denser

29
Q

What are the processes that can affect the salinity of the water?

A

Evaporation, sea ice, glaciers, run off, precipitation.

30
Q

What are the different marine life zones in order?

A
Uphotic
Aphotic
-----------
Intertidal
Neretic
Oceanic
-------------
Pelagic
Benthic
Abyssal
31
Q

What is primary productivity?

A

The amount of carbon used by organisms in synthesis.

32
Q

What climate has the most primary productivity?

A

Temperate

33
Q

What is the pelagic zone?

A

open ocean of any depth.

34
Q

Name three organisms that are classified as nekton.

A

Fish, whales, dolphins.

35
Q

Is a what zone would a whale live in?

A

Oceanic

36
Q

What are infauna epifauna

A

Epi- and animal that lives on the bottom starfish some crabs

In- they dig some crabs moi moi etc

37
Q

Where is light strongest

A

Uphotic

38
Q

What is another name for algae?

A

Phytoplankton