I am guessing you wish to know about fish stocking rates. Its very simple really. The bigger the fish the more water it needs. The way it works is, 1 inch of fish needs a minimum of 1 gallon of water, every tank needs a cycled filter and every tank also needs to have at least 50% of its water changed every week. So a Goldfish (grows to about 10 inches) would need a MINIMUM of 10 gallons of water. A 10 gallon tank is not big enough because tanks usually have some kind of substrate (gravel base) and are never filled to the brim. A nominal 10 gallon tank would only actually contain about 7 or 8 gallons of water.
When goldfish are in a crowded tank with other goldfish, they must absorb more oxygen in a shorter amount of time. A crowded tank of goldfish needs an air pump running to provide sufficient oxygen. (Golding,2010)
The smaller the size of a tropical fish the faster their breathing rate will be. The smallest fish will have the fastest breathing rates.
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the factor are Death Rate Birth Rate Immigration
birth rate & death rate,fertility rate.
they both are related by age, size, weight, activity level , and heath.
Yes
muscle size
The birth rate affects the size of population because of what its like. And the death rate is more than you can imagine.
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One factor that affects the rate of absorption is the molecule size. Particle size, lipid water solubility, and the degree of ionization are also three other factors that affect the rate of absorption.
The slower the rate of cooling the larger the size of the crystals that can develop.
larger crystals