In a 1957 paper on the evolution of scenescene, George Williams noted that some

Question

In a 1957 paper on the evolution of scenescene, George Williams noted that some species such as carp, continuously grow larger and increaase their fertility over the course of their lifespans. Based on our discussion of scenescene, what do you predict the rate and timing of scenescene in these species when compared to closely related species that do not see continous increase in fertility? In a 1957 paper on the evolution of scenescene, George Williams noted that some species such as carp, continuously grow larger and increaase their fertility over the course of their lifespans. Based on our discussion of scenescene, what do you predict the rate and timing of scenescene in these species when compared to closely related species that do not see continous increase in fertility?

Explanation / Answer

In a 1957 paper on the evolution of scenescene, George Williams noted that some species such as carp, continuously grow larger and increaase their fertility over the course of their lifespans. Generally, in fishes the aging is very slow. Thus, the senescence is negligible and even may be negative also. So, the carp fishes tend to have longer lifespan with increased fertility rates. The rate and timing of senescence in carp fishes cannot be predictable when compared to closely related species that do not see continuous increase in fertility. The senescence in fishes may be influenced by environmental changes and also by the genetic make up of individual fish species.

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