1 Demodex is a mite that lives in small numbers in the skin of healthy dogs and cats without causing a problem. 2  Unhealthy dogs and cats, especially those with immune problems, Cushing's Disease, or on steroid medications can develop severe demodex infection.umans have their own form of demodex mite. The demodex mite is not rareâit is found in small numbers in the skin of most dogs and cats because the mites on their mothers normally travel to young pets shortly after birth.
- the hazard is growth of bacteria: 1  control measures are continuous recording of temperature (automatic) or visual control of icing of the fish. 2  the critical limit for fish temperature is 1 C. 3  a log on temperature and icing observations must be kept. 4  corrective action is checking of fish from period out of control, sorting and rejection of low ...
The carrying capacity is the maximum population size of a particular species that a given ecosystem can sustain. As the population size increase, the demand for resources such as food, water, shelter and space increases. Eventually, there will not be enough resources for each individual and stress will occur. limiting factor is a factor that restricts the size of a population from reaching its full potential. The amount of food & water in a habitat is an example of a limiting factor. Other factors include geographical space, predation, climate, competition (for prey, food, mates) etc.