1 6 Yorkshire Naturalists’ Union : Annual Report, 1932. 
to be a Salmon, jumped below the weir at Topcliffe in the River Swale. 
The river was in slight flood and the water temperature 57 deg. F. 
Numbers of Salmon were passing up the ladder and also jumping at the 
fall at Linton-on-Ouse on September 3rd, the fall at this time being 
nearly drowned by flood water. Perhaps the most interesting item 
concerning Salmon is the reported capture on July nth of two Salmon 
parr (yearling Salmon) at Langton in the River Swale, by Mr. Smithson, 
of Northallerton, who duly returned the youngsters to the water. These 
fish obviously must be the result of naturally deposited ova of the 
previous season’s run, and goes to prove that some Salmon must, on 
occasions, be able to get over the supposed insurmountable barrier at 
Topcliffe Weir. 
Salmon. — Since writing this report I am informed that on October 
nth there was a continuous run of Salmon all day over Naburn Weir. 
The weir was almost drowned by a freshet coincident with a high tide, 
which brought the two levels within 2 feet of each other. The lock keepers 
state that many hundreds of Salmon surmounted the dam. 
Trout. — The River Derwent in the vicinity of Malton has yielded 
several large Trout, the best weighing nearly 8 lbs., and several others 
of a little over 5 lbs. have been caught, principally with the aid of live 
bait. Fishing the Holbeck, near Slingsby, on July 3rd, I had Trout 
2 .\ lbs. and ij- lbs., and friends had three more Trout each ij lbs., all 
taken on minnow. The Trout fishing season generally has been an average 
one, and no catches of outstanding interest are reported. An experiment 
has been the stocking of the lake at Waplington, near Pocklington, 
with 250 yearling and 2,000 Trout fry, all of which were turned in on 
July 9th. The lake is some 5 acres in extent and shallow in depth, 
being densely overgrown with waterlilies. On July 17th, six yearling 
Trout were found dead, very probably killed by rotting vegetation, 
the result of cutting the waterlilies. Since that date, however, no more 
dead fish have been seen. 
Grayling. — A large number of grayling, netted from the River Costa, 
were liberated in the River Nidd at Skip Bridge on February 2nd, 1932 ; 
fifty of these, from 12 inches to 15 inches in length, were marked by me 
with silver numbered tablets previous to their release. Seven of these 
fish have since been recaptured at points varying from half a mile to 32- 
miles from the place of their introduction. Full details will appear in 
the next Yorkshire Fishery Board report. On July 19th a Grayling, 
1 lb. 5f 02s., was caught in the River Nidd at Hammerton by Mr. G. 
Ward. 
Pike. — Pike are generally numerous in the Rivers Ouse, Derwent, 
Rye and Swale, and reports of their capture have been numerous, but 
there have been no fish of this species of specimen size. On January 17th, 
Mr. F. Dyer, of the York City Rowing Club, found a pike stranded after 
flood on the bank of the River Ouse at Clifton, York, which measured 
3 ft. 7 ins. long and was 7 ins. across the back and would be well over 
20 lbs. in weight. This fish still shewed signs of life, and after being 
lifted into the water it gradually recovered and went away. 
Common Eel. — Two large specimens have been obtained ; in 
September one weighing 6 lbs. 4 ozs. was caught at a place called Queen 
Mary’s Dub, a large sheet of water about three miles from Ripon. This 
lake is not far from the River Ure, and eels will be able to get to it fairly 
readily. Another weighing a little over 5 lbs. was caught at Linton-on- 
Ouse, also during September. 
Lamprey. — On April 27th large numbers of Lampreys were running 
up the Isle Beck, in the vicinity of Thirkleby. Mr. G. Merriman, of 
York, caught twelve on this date in his landing net and returned them 
again to the water. Lampreys were also reported about this date as 
being seen in both the rivers Ouse and Derwent. Those reported from the 
The Naturalist 
