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EEMB 163 > Lecture 4 - Vertical distribution, Animals > Flashcards

Lecture 4 - Vertical distribution, Animals Flashcards

1
Q

Epipelagic

A

light, lots of food production, euphotic

up to 200m

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2
Q

Mesopelagic

A

twilight,

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3
Q

Bathypelagic

A

dark, 1-4*C

1000-400m

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4
Q

Abyssopelagic

A

dark,

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5
Q

Hadopelagic

A

trenches

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6
Q

Benthopelagic

A

near bottom pelagic

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7
Q

Plankton

A

smaller, caught in fine mess
carried by water
most inverts

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8
Q

Micronekton

A

shrimps, small fish, cephalopods

caught in midwater trawls

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9
Q

Nekton

A

bigger, coarser mesh nets

fish and cephalopods

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10
Q

Radiolaria

A 
Kingdom Protista, Phylum Radiolaria
holoplanktonic protozoans
solitary up to 10mm
siliceous skeletons encased in photoplasm 
some large colonies
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11
Q

Xenphyophores

A

Kingdom Protista, Phylum Xenphyphora
Deep sea deposit feeders
most abundant on abyssal plain

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12
Q

Silica sponges

A

Animalia, Phylum Proifera, C. Hexactinellidae

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13
Q

Corals, Anemones, hydroids and jellies

A

Phylum Cnidaria
All radially symmetrical
Simplest animals with true tissues (epidermis, gastrodermis, mesoglea)
Gastrovascular cavity with one opening
Nematocysts (with cnidoblasts)
Alternation of generations (polyp/medusa)

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14
Q

Anthozoans

A

Corals and anemones
Dominant polyp
up to 2000m

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15
Q

Scyphozoans

A

True jellies

Dominant medusa

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16
Q

Hydrozoans

A

jellies (bell shape) with distinct alternation of generations

17
Q

Order Trachylina

A

Jellies with velum

1000 - 3000 m

18
Q

Jellies with no floats

A

O. Siphonophora, subO. Calycophoae

19
Q

Jellies with floats and bells

A

subO. Physonectae

20
Q

Phylum Ctenophora

A

Cyidippid (ball w/ tentacles)
Lobate (lobed ears)
Beriod (sponge like)

biolumenescence

21
Q

Nemerteans

A

sea worms

22
Q

Annelids

A

True sea worms

EEMB 163 (18 decks)

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