Barra Research

[devocean]

Taken from R&D News Magazine.

the survival rate of barramundi hooked on lures then released is higher in winter than in summer. Monitoring of small samples for seven days after release resulted in 100 per cent survival in winter but only 80 percent in summer. Blood samples were taken and found that stress levels were shown to peak about 1 hour after capture and that longer hooked time did not neccessarily affect cortisal levels (stress levels) only lactate levels which did not have anything to do with death after capture.

Thought someone might be interested

[Mad_Barry]

whats R&D News magazine ?

any links to further info ?

[whiteman]

Dicko, if you stop kissing the rare ones you throw back the survival rate might climb above 90%!

[megafish71]

That study was done in the NT, and only relates to billabong fish and not tidal river or coastal areas. The main reason the the survival of the fish in the summer was lower directly relates to lower oxygen levels in the water. In most billabongs and lagoons the first rains each year cause a drastic drop in the waters oxygen levels and usually creates a fish kill where hundreds sometimes thousands of fish die.

Ron

[devocean]

R&D stands for research and development magazine and is put out byu the federal governemtn on all matters from fishing, DPI to aquaculture. Pretty good mag most libraries should have it.

[Mick]

And if the first rains don't arrive on time, botulism can have nasty effects as well. Devo, 2 barra were found dead in Mullers Lagoon last week, just floating on the surface, not a mark on them.

[devocean]

girudalla I reckon

[Mick]

could be... I heard da fallas were gunna go geb some baddamundi