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Fish Science > Quiz 1 > Flashcards

Quiz 1 Flashcards

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Biology 101 flashcards
1
Q

How did the dutch name the fishes that were unidentified

A
  • Elft
  • Twalift
  • Dirtienen
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2
Q

Were were common fishes observed in 1633, 1644, 1656

A
  • Sturgeon
  • Pike
  • Twalift
  • Dirtienen
  • trout
  • perch
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3
Q

What were charateristics of the elft species

A
  • Herring-like
  • Abundant, then disappears
  • Runs river before twalift
  • most likely an American shad
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4
Q

What were the characteristics of the twalift species

A
  • scales like salmon
  • run river in spring
  • six stripes on each side
  • everywhere
  • most likely a striped bass
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5
Q

What were characteristics of the dirtienen species

A
  • scales and shape like carp
  • yellow
  • runs after twalift
  • not very clear what it was, possibly a red horse sucker
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6
Q

Who published the first work on fishes of new york

A

-Schopf

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7
Q

Significance of Walbaum

A

-provided scientific names for a number of species only listed by Schopf by common name

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8
Q

Who published the fishes of new york, described and arranged

A
  • Mitchill

- the bay anchovy bears his name

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9
Q

Significance of Rafinesque

A
  • described many fishes from upstate New York

- also described imaginary fishes

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10
Q

Who described fishes of the Appalachians

A

-Cope

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11
Q

Emmeline Moore

A
  • first woman full-timee researcher

- ran the new york state biological survey

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12
Q

What casual factors determine the patterns and presence of our fish fauna

A
  • Climate
  • Biogeography (distribution of organisms and the factors that determine distributions)
  • Landforms
  • Glaciers
  • Hydrology
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13
Q

How did glaciers affect fish fauna

A
  • erradicated everything in immediate vicinity
  • created refugee that fish recolonized
  • Species split by glacier began to diversify
  • first recolonizes were tolerant species
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14
Q

Uninteneded anthropogenic influences on fish fauna

A
  • acid precip
  • habitat alteration through land use change
  • climate change
  • canalization of ny waterways
  • dams
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15
Q

Landuse affects on fish

A
  • dams
  • logging
  • agriculture
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16
Q

Semi diurnal tides

A

-occur twice a day

17
Q

Diurnal tides

A

-occur once a day

18
Q

Traditional gears used in Hudson River fisheries

A
  • stake nets
  • drift nets
  • pound nets
  • Haul seining
19
Q

What fish used to prominent in the Hudson but is now in lower numbers due to commercial fishing

A

-American shad

20
Q

What is the dominant reproduction in river systems

A

-Allochthonous (organic matter and nutrients C, N, P)

21
Q

Major species fished in Hudson

A
  • Striped bass
  • Lobster*
  • Winter flounder*
  • Hake
  • Scup
22
Q

How have zebra mussels impacted the Hudson

A
  • lowers chlorophyll availablilty

- impacts lower levels of the food web

23
Q

Model used to describe growth of a population

A
  • exponential growth equation
  • (dN/dt)=r(t)
  • r fish the pop growth rate
  • N is the number of organisms
24
Q

Simplification of the exponential growth rate

A

Nt=No(e^rt)

25
Q

What is a population size limited by

A
  • briths and deaths
  • immigration and migration
  • additions and loses
26
Q

Type 1 survivorship curve

A
  • high survival early, low survival late

- Humans

27
Q

Type 2 survivorship curve

A
  • Avian populations

- constant

28
Q

Type 3 survivorship curve

A
  • fish

- high chance of death early, low chance of death late in life

29
Q

What is a population

A

-a collection of similar organisms that live together

30
Q

what is the benefit of a life table analysis

A

-able to keep track of the numbers of survivors, the birth rates, and survival rates

31
Q

Life table analysis variables

A

x is age
S(x) is number of survivors to age x
b(x) is number of births per female of age x
l(x) is the probability of surviving from age 0 to x (=S(x)/S(0))

Fish Science (10 decks)

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