Fish Kills in Nelson Bays..

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Johnno
Posts: 587
Joined: Sat May 10, 2014 3:01 pm

Fish Kills in Nelson Bays..

Post by Johnno » Thu Feb 01, 2018 9:10 pm

Speaking with Fish and Game today, there have been fishkills reported in our local Nelson Bays lowland rivers - likely to be because of high temps - the water getting to 21 - 22 degrees C during the day.. A fair number of trout have been found dead at the bottom of pools and runs. Even after recent rain the rivers dropped fast and the temps went up fast again.

One problem being that the local rivers don't source from snow at this time of year and its all just drainage that heats up throughout their whole length during the hot temps.

The local rivers really didn't get too much of a rise in todays storm. Several dozen cumecs at most. They'll drop quick

Just another reminder to check river temps no matter where you are fishing and when the rivers get to 20 degrees C.... STOP FISHING. :!:



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TIDDLER
Posts: 218
Joined: Fri Apr 17, 2015 5:42 pm

Re: Fish Kills in Nelson Bays..

Post by TIDDLER » Thu Feb 01, 2018 11:27 pm

YOU RAISE AN IMPORTANT ISSUE HERE JOHNNO . WE HAVE HAD A GOOD DOWNPOUR TODAY BUT PRIOR TO THAT THE GROUND TEMP IN MUCH OF CENTRAL OTAGO WAS 26ºc . THUS WHEN LIGHT OR AVERAGE RAIN SHOWERS LAND ON THE GROUND THEY ARE IMMEDIATELY WARMED UP .
THE RUNOFF INTO SMALL CREEKS AND ONTO RIVERS IS TEPID WATER . SUN BLAZING DOWN ON SUCH RIVERS QUICKLY HEATS THE WATER EVEN MORE .WE CAN'T CHANGE NATURE BUT WE CAN BE AWARE AND CHANGE OUR BEHAVIOURS ...... Al



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