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Germany, and thé average length 28 cm. Half the total number of plaice lie between 

 the lengths of abt. 26 and 28 cm. and half the weight between 27 and 30 cm., whereas 

 the corresponding figures for the German landings are abt. 22 to 27 cm. and 24 to 

 30 cm. 



The Danish plaice landings from the Skagerrak, which are mostly brought in to 

 Frederikshavn, and are likewise subject to the size limit of 25.6, are, on an average, 

 composed of larger plaice than those from the North Sea. The size-limits are, accor- 

 ding to the measurements for the years 1904/07, 24 to 70 with an average length of 

 33 to 34 cm. and an average weight of abt. 380 gr. The maximum, or value of greatest 

 density of the measurement series, is at 32 cm., the median at 33 cm. Plaice under 29 

 cm., the so-called small plaice, here amount to only 10 7o in number of the total, as 

 against 70 "/o in the North Sea landings. 



The Danish plaice landed from the Northern and Middle Kattegat are also larger than 

 those from the North Sea, but considerably smaller than those from the Skagerrak. 

 They measure from 23 to over 60 cm., with an average length of 29 to 31 cm., and 

 an average weight of 280 gr. In the landings from the northern Kattegat about 42 % 

 are "small" plaice under 29 cm. long. The average quantity of the landings from the 

 Skagerrak and the Northern and Middle Kattegat (in Frederikshavn) amounts to about 

 3.5 million kg. i. e., as much as the landings from the North Sea in Esbjerg. 



Landings of plaice in Scotland. 



The quantity of plaice taken by Scotland from the North Sea ranks, in point of 

 weight, below that of all other states bordering on that water, with the sole exception 

 of Belgium: it amounted in 1908 to only about 1,825,000 kg. or about one-seventeenth 

 of the English landings, and only a quarter of the Dutch, or half the German yield. 

 The value of the plaice landed in Scotland is however relatively very consider- 

 able, exceeding that of Germany and Denmark, approaching that of Holland, and 

 amounting to one-eleventh of the value of the English landings. This is due to the 

 fact that the Scottish plaice fishery in the North Sea is carried on almost exclusively in 

 its northern waters, and thus yields fish of a greater average weight, the market 

 value of which is considerably higher per kilogramme than that of the small plaice 

 landed from the southern North Sea. The great majority of plaice landed in Scotland 

 are taken by the trawl, a smaller quantity being caught by means of lines. The trawlers 

 are for the most part steamers, but include a smaller number of sailing vessels. 



The chief port for the plaice landings from the North Sea is Aberdeen, which takes 

 about 50 "/o of the total quantity. The Scottish plaice fishing grounds in the North Sea 

 extend from Lat. 61 ° N. southward to the Dogger Bank, and eastward to Long. 8 " E. 

 The catch statistics for Aberdeen divide the grounds as follows: Northern Grounds, north 

 of Lat. 59° N. which include the greater part of Areas F and G, and part of Ds accor- 

 ding to the international division of the North Sea; the East Coast Grounds, directly off" 

 the coast of Scotland from the Orkneys to the Firth of Forth, chiefly Areas Ci, Di 

 and parts of E, the Middle Grounds, being the greater part of Areas D2, E and parts 

 ofF, and ünaüy the Southern Grounds, or Areas C 2, Bs, and parts of B 1 and B 4. Of these 



