136 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 
the minimum of abundance of plaice caught in the shrimp- 
trawl occurred about two years before the minimum of abund- 
ance of plaice caught in the fish-trawl. This is as it ought to 
be for shrimp-net plaice are, on the whole, about two years 
younger than fish-trawl-net plaice. 
The ‘‘wet fish” landed at “‘minor” ports. 
We may ask whether these results apply generally to 
the whole of the Fishery District ? I think that they do. The 
following table (taken from Dr. Jenkins’ Quarterly Report 
for September, 1917), gives the quantities of all “ wet fish” 
landed at the smaller ports in the Lancashire and Western 
District. Most of these fish are locally caught, and a large 
fraction of them will be plaice, flounders, and dabs. The 
figures are“ smoothed ”’ by taking the averages of three-yearly 
groups, as we did above. The figures for the last year (1917) 
are incomplete, the last quarter being missing. : 
Quantities (in cwts.) of Wet Fish landed at minor ports in the 
Lancashire and Western Fishery District. 
Groups of years. Average quantities landed. 
1906-8 (Minimum) 26,342 
1907-9 28,748 
1908-10 31,371 
1909-11 (Maximum) 36,518 
1910-12 36,1 
1911-13 | 34,511 
1912-14 29,968 
1913-15 32,929 
1914-16 37,333 
1915-17 37,109 
Now, this period, 1906-1917, covers only a part of that 
included in Captain Eccles’ statistics (for the collection of 
fishery returns was very faulty up to the year 1906, and it 
