Data from 140 captures over the past 15 months
73 captures of a night, or 2.1 fish average/trip
22 of a day, or .7 fish average/trip
45 at dusk/dawn or .8 fish average/trip.
Interestingly when you pull the metre plus fish out for examination the figures skew a bit. Having said that the sample pool of 44 is a lot less than the overall amount
18 captures of a night, or .6 fish average/trip
16 of a day, or .4 fish average/trip
10 at dusk/dawn or .2 fish average/trip.
No tidal influence as all the fish were caught in the freshwater section of the Ord.
Other factors that stick out like dogs balls is the influence of the moon. i.e the stats on big barra go up to 1.2 fish average/trip of a night from full moon to last quarter compared to none caught during the night or the dusk dawn period of the last quarter to new moon, the only large fish to come from this period were during the day at .3 fish average/trip.
It appears to me that large fish do keep somewhat different timetables to smaller fish but overall night time and moonlight are a good combination for barra fishing.
Further to this (not checked the stats yet but this'd be a good guess). Comparing the days Friday Saturday and Sunday (my regular fishing days/nights) I bet Friday comes out the best day of all.
So Friday night on a full moon you know where I'll be