Lab Flashcards

1
Q

specialized sense organs in lateral line

A

neuromasts

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2
Q

Muscles that make up most of the trunk

A

Axial muscles

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3
Q

w-shaped blocks of muscle in the trunk

A

myomeres

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4
Q

where the heart is located

A

pericardial cavity

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5
Q

where blood is oxygenated

A

vental aorta

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6
Q

A connected swim bladder

A

physostomous

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7
Q

a disconnected swim bladder

A

physoclistous

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8
Q

finger-like projections extending from the stomach

A

pyloric ceca

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9
Q

sheet-like material surrounding intestine. may contain fat

A

mesentery

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10
Q

location where many fish not having reproductive ducts will shed sperm and eggs

A

abdominal pores

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11
Q

part of brain coordinating muscular movement and equilibrium

A

cerebellum

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12
Q

part of brain processing imagery

A

optical lobes

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13
Q

elongated spindle-like body form, such as a lingcod

A

fusiform

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14
Q

eel-like body form

A

anguilliform

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15
Q

shortened body form, such as a lumpsucker

A

ovate or truncated

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16
Q

compressed body form, like a perch

A

compressed

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17
Q

flattened body form, like a skate or ray

A

depressed

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18
Q

hemispherical body form, like a pufferfish

A

globiform

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19
Q

sensory protrusions found on head

A

cirri

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20
Q

What is the main reason attributed to the inability to adequately monitor shark populations?

A

the vast geographic scale of pelagic marine ecosystems

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21
Q

What is the most widespread fishing gear used in the open ocean?

A

Pelagic longline

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22
Q

Why are sharks slow to recover from overexploitation?

A

They have low maximum intrinsic rates of increase

23
Q

What are 2 strong recommendations to safe-guard sharks and other large pelagic predators from further declines?

A
  • create carefully designed marine reserves

- reduce fishing pressure

24
Q

numerous, small, flag-like projections between the main dorsal fins and the caudal fin

A

finlets

25
Q

a flat, blade-like bone that lies within the skin of the ventral side of the head

A

Gular plate

26
Q

parallel, bony struts, which are arranged like the ribs of a bellows or a fan

A

Brachiostegal rays

27
Q

lid-like structure covers and protects the separate gill openings.

A

operculum

28
Q

narrow elongated teeth

A

caniniform

29
Q

sharp, blade-like teeth

A

incisoriform

30
Q

blunt or flattened teeth

A

molariform

31
Q

the margin of the mouth

A

gape

32
Q

discontinuous variable

A

meristic

33
Q

changes in body proportions throughout life cycle

A

allometric growth

34
Q

penis-like extension found in male guppies

A

gonopodium

35
Q

process when one embryo consumes another

A

embryophagy

36
Q

Where can variability be introduced?

A
  1. natural variability between specimens
  2. inter-individual variability. people making measurements differently
  3. intra-individual variabilty. the same person making the same measurement twice, but with different results.
37
Q

electro receptors - common in sharks

A

ampullae of lorenzini

38
Q

mouth type - midwater feeder

A

terminal

39
Q

mouth type - surface feeder

A

superior

40
Q

mouth type - bottom feeder

A

inferior/sub-terminal

41
Q

internal structure marking the end of the vertebral column

A

hypural plate

42
Q

another name for the shoulder girdle

A

cleithrum

43
Q

three ways gill membranes can attach

A
  1. free or separate from isthmus
  2. united across isthmus
  3. joined to the isthmus
44
Q

hard rays

A

spinous rays

45
Q

improvement of premaxilla uper jaw mobility

A

ascending process

46
Q

piece of mouth where the ascending process moves along

A

rostral cartilage

47
Q

self-fertilization

A

hermaphroditism

48
Q

eggs develop without fertilization

A

parthenogenisis

49
Q

scale eating feeding behaviour

A

lepidophagy

50
Q

occupying both marine and freshwaters in lifecycle

A

diadromous

51
Q

vertebra concave at both ends

A

amphicoelous

52
Q

vertebra concave at one end

A

opisthocoelous

53
Q

a feature shared by a common ancestor and its descendents

A

synapomorphy

54
Q

what does PIT stand for?

A

Passive Integrated Transponder