smolt

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smolt

a young salmon at the stage when it migrates from fresh water to the sea
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Since estrogen triggers her adaptation, Madsen and a colleague decided to test how smolts would respond to estrogen or nonylphenol, an estrogen mimic.
For the same fish, we also plotted FZL by date of capture and found a negative trend over time, indicating that FZL decreased during the period (Table 1), which would not be consistent with selective mortality of smolts of smaller initial size.
This devastation to fish stocks by ever-increasing flocks of goosanders and cormorants are taking far too heavy a toll on smolts on Welsh rivers.
Yet stories abound among anglers of finding large smallmouth in the eddies when steelhead and salmon smolts are migrating.
Last year, 340,000 well conditioned smolts were released instead of the normal 250,000, so you would expect that this year the river would have a much larger return of grilse.
Asimismo, la sobrevivencia al estado de ojos pigmentados es un parametro de alta importancia productiva, dado que las ovas son el primer insumo utilizado en la cadena productiva en salmonicultura, este alto valor de sobrevivencia representa un aspecto favorable, ya que es esperable obtener un alto numero de alevines y smolts para las subsiguientes etapas productivas.
P/f Fiskaaling began experimenting with Atlantic salmon by raising smolts harvested from local rivers; the results were poor.
Anywhere from half a percent to 1 percent of the salmon smolts released by the hatchery manage to survive the trip out to the ocean and return to the McKenzie River as adults, state data shows.
"We have trapped 1,500 smolts so far, compared to 1,000 in 2018, which is encouraging and in line with what we expected."
Andrews, scientists are conducting an interesting experiment in which they are hoping to extend the "time window" when smolts can be released into salt water.
The Fish Passage Center defines the critical migration period as that time when the middle 80 percent of the smolts are migrating through the system.
Already 800 young salmon smolts have been tagged as they migrate downstream from the headwaters of seven rivers around the Moray Firth, including the Spey, so their progress can be tracked.