We analyzed 23 successful spawns
performed by the resident male and several females, and three spawns
successfully stolen by the satellite male over a 2.
Although females spawned
naturally in the tank for their spawning periods of 2-3 months, they could not spawn
naturally during the 48-h experiments.
Males and females did not differ significantly in response to these treatments, although only males were observed to spawn
at low levels in control and phytoplankton (alone) treatments.
There is no concise data available regarding spawns
but according to a user called Rathbunkum, there might be many variations in the spawning rates.
It does not spawn
until the water temperature increases in April although the ovaries matured even during the cold season but the fish did not begin to spawn
until late spring.
order) were haphazardly divided into 5 groups of 4 original replicates per group, and used as samples, To analyze the 30-d-old juveniles, 5 replicates of each treatment were haphazardly selected.
Weighted average dates for post spawn
fish were several days later than average dates for spawning fish.
A spokesman said: "It is vital that salmon and sewin are allowed to spawn
safely and the public are reminded that fishing for these fish at this time of year is illegal by any method.
Over the past few years, Sylvan has been developing new spawn
products designed to reduce spawn
run and improve crop quality and yield.
biologist Paola Bouley points out that with the Coho's three-year life cycle, it could take only three bad years to wipe out the entire population.
However, it is also possible that spawning movements were completely missed or that some fish were tagged in locations outside of spawning areas and did not migrate to spawn
The effect of factors such as spawn
grain, culture medium, oil type and rate on the culture of Psathyrella atroumbonata and Lentinus squarrosulus has been reported [11,12,13].