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Flashcards in Chapter 3 Test Deck (30)
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1
Q

What is the benthic zone?

A

Depths of the sea

2
Q

What are the 2 zones of the pelagic zone?

A

Neritic and oceanic

3
Q

What is the neritic zone?

A

Water area between the low tide mark and edge of continental shelf

4
Q

What is the oceanic zone?

A

Open water beyond continental shelf

5
Q

What is the epipelagic zone?

A

Top layer that sunlight penetrates

6
Q

What is the mesopelagic zone?

A

Sunlight doesn’t penetrate enough to support life

7
Q

What is the bathypelagic zone?

A

Deep water in open ocean

8
Q

What is the pelagic zone?

A

Sea

9
Q

What is the abyssalpelagic zone?

A

Ocean trenches

10
Q

What is the hadalpelagic zone?

A

“Underground adobe of the dead”

Deepest water in the trenches

11
Q

What is the benthic zone and how is it divided?

A
  • It moves from the shore to the open ocean

- it is divided based on depth

12
Q

What is the supra littoral zone?

A

Water splashes, but doesn’t remain submerged

13
Q

What is the littoral zone?

A

Between high and low tide mark (sometimes submerged)

14
Q

What is the sub littoral zone?

A

Ocean bottom near shore

15
Q

What is the outer littoral zone?

A

Ocean bottom out of edge of continental shelf

16
Q

What is the bathyl zone?

A

Continental slope to deep ocean bottom

17
Q

What is the abyssal zone?

A

Deep ocean bottom

18
Q

What is the hadal zone?

A

Below 6,000 feet

19
Q

What are the 3 classifications of lifestyles?

A

Plankton, nekton, benthos

20
Q

What are plankton?

A

Groups of plants (phytoplankton) and animals (zooplankton) that exist adrift in ocean currents

21
Q

What are nekton?

A

Organisms that swim

-ex: predators

22
Q

What are benthos?

A
  • live on bottom of sea

- often sessile (attached to bottom, no movement)

23
Q

What are neuston?

A
  • float on surface

- ex: Portuguese man of war

24
Q

Subgroups of benthos?

A

Epifauna,epiflora, infauna

25
Q

What is epifauna?

A

Animals that live in the epipelagic zone

-ex: crabs

26
Q

What is epiflora?

A

Plants that live in the epipelagic zone

-ex: seagrass

27
Q

What is infauna?

A

Animals that burrow into the sand

-ex: clams, sand dollars, sea pens

28
Q

What are deposit feeders?

A

Feed off detritus that falls from above

29
Q

What are suspension feeders?

A

Filter particles suspended in food

30
Q

What is detritus?

A

Dead or decaying organisms