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Marine biology > Kelp Forest > Flashcards

Kelp Forest Flashcards

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1
Q

What are nereocystis?

A

Bull kelp
Have only 1 pneumatocysts
Can withstand great wave strength

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2
Q

What is macrocystis?

A

Giant kelp:

Major canopy former
Grows from meristem
Perennial

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3
Q

What are key grazers of kelp forests?

A

Urchins*
Abalone
Regular
Molluscs- mitra, calliostoma, regular snails

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4
Q

What are key predators in the kelp forest

A

Sea otters
Some mollusks (kelletia)
Rockfish

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5
Q

Threats to kelp forests:

A

Unsustainable harvesting (harvesting from the top)
Overfishing rockfish- near shore, live fish fisheries, long lining
Power plants- emit warm water
Construction
Sedimentation/scour

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6
Q

Vertical zon action in kelp forest:

A 
Bottom: turf
Benthic zone, prostrate kelps, invertebrates
Middle: understory
Largest zone, most species
Top: canopy
Dominated by giant kelp
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7
Q

What are kelp forests dependent on?

A

Hard substrate
High nutrients
Constant wave exposure (medium)

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Marine biology (12 decks)

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