FISHERIES CATALOGUE. 221 



6. Patterns of the different sizes of mesh used in fish 



trawl and shrimp nets. The meshes are measured 

 around the four sides. A "seven-inch-mesh" 

 therefore is one having each side of the square 

 If in. from knot to knot. The size of fish-trawl 

 mesh (4^- inch) in use in this district before the 

 institution of the Committee, and the size (7 inch) 

 now enforced by the Committee's bye-laws are 

 shown, as well as the smaller sizes (both old and 

 new) used in shrimping and prawning, and the 

 5 in. and 6 in. mesh used specially for a fixed 

 period in each year for the capture of soles (by 

 deep sea trawlers on the off-shore grounds) . 



7. Two large glass vessels containing common food- 



fishes of various sizes, illustrating the average 

 style of catch obtained by the nets in use before 

 and since the introduction of the Committee's 

 bye-laws. Keprints on cards of statistics from 

 the Superintendent's reports are placed alongside 

 and show the results of experimental hauls made 

 with the two sizes of mesh (4^- inch and 7 inch) . 

 The four jars on the shelf above show the actual 

 kinds and sizes of the fish caught by the 7 in. 

 mesh, as mentioned in these statistics. The 

 three jars below show those caught by the 4Jin. 

 mesh. The very large number of small sized 

 fish destroyed by the smaller mesh will be noticed 

 in these last jars. 



8. Glass vessel showing an average sample of the 



fish caught in a shrimp net in some parts of our 

 district. This illustrates the destruction to 

 young food-fish caused by the indiscriminate use 

 of shrimp nets in localities which serve as fish 



