What do Fish do in Flood Events

What do fish do in flood events like that experienced currently along the NSW north coast?

Previous fish tagging work by DPI and University of NSW provided some additional interesting insights in fish movement among key species like mulloway and whiting.

It showed floods can drive drastic changes in estuary fish dynamics. For example, species segregation between mulloway and whiting was observed where mulloway tended to move into whiting habitat (ie, shallow sandy flats) after rain while the whiting headed to the deeper holes generally favoured by mulloway.

This could perhaps explain why mulloway tend to “come on the bite” following heavy rain while whiting seemingly disappear.

Given the recent deluge on the north coast thanks to the remnants of Cyclone Debbie, it might be a good idea to ditch the whiting gear in favour of mulloway tackle if you’re planning on wetting a line over the next week or so …

Compliments of DPI Fisheries http://www.dpi.nsw.gov.au/fisheries/compliance


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