Swim performance and energetics Flashcards
1
Q
What are the objectives of swim performance and energetics?
A
- velocity, power + swimming efficiency
- metabolic cost
2
Q
What is metabolic cost?
A
- cost of transport
3
Q
What are applications of swim performance and energetics?
A
- environmental physiology (temp)
- fish passage assessment
4
Q
What is isometric/geometric scaling?
A
- linear dimensions of an object change in proportion to one another as it grows
5
Q
Does isometric scaling happen in animals?
A
rarely - frogs exception
6
Q
in relation to isometric scaling, SA = ?
A
- supply (nutrient uptake)
- length squared
7
Q
in relation to isometric scaling, volume =?
A
- demand (cells)
- length cubed
8
Q
Are surface area and volume changing at the same rate in isometric scaling?
A
- no, SA slower
9
Q
Define allometric scaling
A
- systematic changes in body proportions with increasing body sizes
10
Q
allo = ?
A
different
11
Q
Are changes in volume and SA proportionate in allometric scaling?
A
- not necessarily with complexity of organism
12
Q
Give an example of allometric scaling
A
head size in humans from baby to adult
13
Q
What level is allometric scaling in animals?
A
- cellular level
14
Q
What observation about fish has occurred due to climate change?
A
- fish getting smaller
15
Q
What does global warming cause?
A
- decrease in O2 concentration in water
- increase in metabolic rates of fish
