Comment:

The differences in juvenile lifestyles and one shot versus multiple spawning can be used to increase the understanding of the importance of salmon carcasses.
There have been a number of studies of the impact of adding salmon carcasses or carcass analogs to streams which have not produced measurable results. There are two likely causes: the addition was small compared to the natural flux (i.e. the result was inherently not measurable) and nutrients were not the limiting factor, other considerations (e.g., rearing habitat) were more important to their survival and growth.

The differences in juvenile lifestyles and one shot versus multiple spawning can be used to increase the understanding of the importance of salmon carcasses.