of the Fishery Board for Scotland. 65 
the trawl cannot work, The young cat-fish is probably to be found 
mostly in such quarters. 
Herring (Clupea harengus). 
From its size the herring, as a rule, is not retained in the trawl-net, 
although from the experiments with the fine-meshed net it is certain 
that they frequently enter the otter-trawl. In the course of the investi- 
gations herrings were taken in thirty hauls, the numbers varying from 
one to as many as eighty-eight, fifty-one, and forty-four. On two 
occasions they were taken on the north-eastern grounds, namely in 
September in sixty-five fathoms, and in October in sixty-six fathoms. 
In Aberdeen Bay they were caught in May, June, July, and December, 
the depths of the water in which the hauls were made being from four- 
and-a-half to sixteen fathoms. In the Moray Firth they were taken in 
the Dornoch Firth in July, November, and December, the hauls being 
made in water from six to thirteen fathoms; off Dunbeath in January 
in twenty-four fathoms; and in or near Burghead Bay in May, July, 
December, and January, the depths ranging from seven to twenty-four 
fathoms. Young herrings, from three to seven or eight inches in 
length, were frequently taken in the small-meshed net outside the 
otter-trawl, as many occasionally as nearly two thousand in an hour’s 
drag. The particulars in regard to those caught in the otter-traw] are 
appended :— 
Date. Place. epi No. 
4 Sept. - 65 miles 8.E. of Sumburgh Head - - - : 65 5-7 
19 October 18 ,, S.E. of Fair Isle 2 - 2 : 2 lhe GE 7) 
6 Nov. - Dornoch Firth = = : : : = 8-10 51 
Ones; ~~ Do. - - - : : = - | 8-10 6 
17 Dec. - | Aberdeen Bay - : : : : : : 9-15 5 
TS 3, - | Do. - - - : : 8 10 1 
1S Semee - Do. - = : : 2 2 7-9 aT 
ay ae - Dornoch Firth - - - : - Y B 12, 8 
30 May - Aberdeen Bay - : = = < ‘ = 12-16 5 
S0n,; - Do. - 9-14 1 
6 June - Do. - - - - - - - | 43-16 il 
a. Do 15-16 4 
1July - Burghead Bay . : : = = : a0 (9-15 1 
2 5; - Do. - - - - - ; - | 7-10 | 2 
Dakss = Dornoch Firth = - - 2 : : | 10 | ] 
Se - Do. - - - - - : - | 10-12 | 9 
Bhi 35 - Aberdeen Bay - - - - - - | 8-15 88 
Dk; - Do. - - - : - - - 8-12 10 
oL,; - Do. - - - : : : = | 8-12 ] 
E [Continued. 
