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Marine Bio-Diversity > 13D > Flashcards

13D Flashcards

1
Q

Family odobenidae

A

1) competition (walruses)
2) Defense (predators)
3) Hauling out (pick axe)
4) Resting (anchor)

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2
Q

Order Sirenia

A

paddle shaped tail, freshwater/estuarine

fluke shaped tail, marine; has tusks

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3
Q

Sirenians

A

mammals belonging to order sirenia

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4
Q

Tail Flukes

A

are the lobes of sirenian or cetacean tail

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5
Q

Family Dugongidae

A

dugong
steelers sea cow

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6
Q

Cetaceans

A

marine mammals belonging to order cetacea; includes whales, dolphins, and porpoises

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7
Q

Blowhole

A

opening of the tip of cetaceans that contains the nostrils

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8
Q

Blubber

A

thick’s uniform layer of fat under the skin of some marine mammals (pinnipeds, sirenians, cetaceans)

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9
Q

Alveoli

A

tiny spaces, or gas sacs, within the lungs where gas exchange occurs

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10
Q

The Bends

A

nitrogen gas dissolved in the blood comes out of solution and forms gas bubbles as the pressure decreases during an ascent from deep water, causing disruptions in circulation

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11
Q

Myoglobin

A

protein muscle that store’s oxygen

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12
Q

Lactic Acid

A

waste product produced when ? lose anaerobically

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13
Q

Spy Hopping

A

cetacean behavior in which the animal raises its head out of the water

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14
Q

Breaching

A

cetacean behavior in which an animal completely or almost completely leaves the water

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15
Q

Tail slapping

A

cetacean behavior in which animals lift its tail out of the water and slaps it down hard on the surface

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16
Q

Peduncle

A

part of the whales body closest to the tail fluke

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17
Q

Fluke Up

A

cetacean behavior in which the animal brings its fluke above the water so that the ventral surface is visible

18
Q

Fluke down

A

cetacean behavior in which the animal beings it’s fluke above the water do that the dorsal surface is visible

19
Q

Flipper Flapping (Pec Slapping)

A

cetacean behavior in which the animal rolls over onto its back and flaps it’s flipped in the air

20
Q

Pectoral Stroking

A

cetacean behavior in which one animal stokes the body of another with its pectoral fin

21
Q

Types of Whales

A

Suborder Mysticeti: baleen whales (12-14 species)
Suborder Odontoceti: toothed whales, dolphins porpoises (75 species)

22
Q

baleen whales

A

lack teeth
presence of baleen plates
two external blowholes

23
Q

Baleen

A

structure made of protein that is used by baleen whales to filter foo from the water

24
Q

Keratin

A

tough protein that makes up baleen

25
Q

right whales

A

northern, southern, bowhead

26
Q

family balaenopteridae

A

blue, fin, sei, brydes, minke, eden, antarctic, omura, humpback

27
Q

toothed whales are characterized by

A

teeth
echolocation
one external blowhole

28
Q

family ziphiidae

A

relatively poorly known

characterized by a snout drawn into a beak

29
Q

family physeteridae

A

sperm whale

30
Q

Spermaceti

A

waxy substance found within the rostrum of sperm whales

31
Q

Ambergris

A

section of the sperm whales digestive tract; base of perfumes

32
Q

family kogiidae

A

pygmy sperm, dwarf sperm

33
Q

family platanistidae

A

asian river dolphin

long, narrow beak, numerous pointed teeth and broad paddle like flippers

34
Q

family pontoporiidae

A

franciscana

rivers of south africa

35
Q

family iniidae

A

bouto

amazon river, freshwater, reduced eyes

36
Q

Dephinids

A

collective term for members of the cetacean family Delphinidae, specifically dolphins

37
Q

family phocoenidae

A

finless, spectacled, butmeister, vaquita, dalis porposes

38
Q

family monodontidae

A

narwhal and beluga

39
Q

Baleen whale families

A

balaenidae (right)
balaenopteridae(rorquals)
eschrictiidae(gray)
neobalarnidae(pygmy right)

40
Q

family lipotidae

A

baiji

chinese river
long narrow upturned beak and low triangular dorsal fin

41
Q

echolocation

A

process that allows toothed whales to use sound to distinguish objects from a distance

Marine Bio-Diversity (14 decks)

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