Weighing Fecundity

Weighing Fecundity.

Absolute Fecundity [is] often attributed to weight, because weight more is coming near [is] condition of that fish than length. But in [relation/link] of fecundity weighing there are some difficulty. Heavy will quickly change when prolific season. For example fish of salmon and of sidat [doing/conducting] journey before is prolific, they [shall] no longger take food, become to fast to place of breed. Material for its growth [of] him taken away from [by] network of somatik. Therefore if participating correlation of fekunditas weighing of somatik in comparing one population with population or among two season have to take a care.

If absolute fecundity mathematically total weighing correlation [is] including weight of gonad will generate difficulty statistically. Cause will be [entered/included] [by] egg in number larger ones of fish which in fact small berfecundity. Also [is] same difficulty will arise if fecundity attributed to factor of[is condition of, because in factor of[is condition of that that is:

entangling total weight [of] that fish. Because of this difficulty, hence many writer use fecundity relative, that is heavy association egg weight [of] fish. But use relatifpun fecundity get difficulty also, because useless compare one population otherly or situation from one year to other year. Initialy usage of that fecundity to express result of anticipating that correlation [among/between] weighing fecundity [is] linear, which [is] its formulation [is]:

F = a + bW.

In some cases use the formula [of] its result [of] goodness, but some writer get that correlation [among/between] weighing fecundity [is] is not linear. In this [relation/link] require to be paid attention that weight of gonad in the early maturity differ from weight of[is end of that maturity because growth of contained egg [it]. During the growth process happened precipitation of gradual egg yolk and also happened hydration when almost come near breeding.

Source : M. Ichsan Effendie