— -21 



APPENDIX H; GARSTANG 



Couatry, Gear and Haul. . . . 



Catcli per hour, above 30 cm. 



~ — below 30 — 



o/o below 20 cm 



Average size in cm, , 



Country, Gear and Haul 



Catch per hour, above 30 cm. 

 — — below 30 — 



o/o below 20 cm 



Average size in cm 



Country, Gear and Haul 



Catch per hour, above 30 cm. 

 — — below 30 — 



*>/o below 20 cm . 



Average size in cm 



Country, Gear and Haul, .... 



Catch per hour, above 30 cm. 

 — — below 30 — 



% below 20 cm 



Average size in cm 







B3 77 



Fig. 6. January,— March 



180 \2Z U im "9 161 IÎ0O 195 



EC 26 2925 26 22 IB 17 



Fig. 7. April — June 



Fig. 8. July — September 





Fig. 9. October — December 



Fig. 6 — 9. Sections from Skegness to Kamp. The positions of the trawling experiments made 



in 1903 arc marked by unbroken lines, those of 1904 by broken lines. 



A. Western extremity of section (53° 10' N., U° 20' E.): B. Lemon Shoals; C. Brown Bank: 



D. Broad Fourtcous; E. Eastern extremity of Section (52° 4iV N., 4° 38' E.). 



for all the seasons, it would appear that tlie maximum size is attained in the summer season 

 and the minimum in the winter or spring. 



Tlie explanation of these facts is to be found in an examination of the figures showing 

 the catch per hour of the large and small plaice. Outside the 20 metre line of depth the 

 small plaice are very sparsely represented during the winter season, but attain a very marked 



