1082 APPENDIX TO BRITISH CASE. 



net, weir, fascine fishery or other device which unduly obstructs 

 the passage of fish; and the Minister or any fishery officer may order 

 the removal of or remove any net, weir, fascine fishery or other 

 device which, in the opinion of such Minister or fishery officer, unduly 

 obstructs the passage of fish. 57-58 V., c. 51, s. 5. 



50. In the provinces of Manitoba, Saskatchewan and Alberta, and 

 in the Northwest Territory and the Yukon Territory. 



(a) every ditch, channel or canal, constructed or adapted for con- 

 ducting water from any lake, river or stream, for irrigating, 

 manufacturing, domestic, or other purposes, shall be pro- 

 vided at its entrance or intake with a fish-guard or a metal 

 or wire grating, covering or netting, so fixed as to prevent 

 the passage of fish from any lake, river, or stream into such 

 ditch, channel or canal; 



(&) such fish-guard shall have meshes or holes not more than three- 

 eighths of an inch in diameter, and shall be built and main- 

 tained by the owner of such ditch, channel or canal, subject 

 to the approval of the Minister, or of such officer as he from 

 time to time appoints to examine it; 



(c) the owner of such ditch, channel or canal shall maintain such 

 fish-guard in a good and sufficient state of repair and shall 

 not permit its removal except for renewal or repair; and 

 during the time such renewal or repair is being effected, 

 the sluice or gate at the intake or entrance shall be closed 

 and the passage of fish into the ditch, channel or canal 

 prevented. 57-58 V., c. 51, s. 5. 



51. No one shall catch fish for the purpose of using it as manure. 

 57-58 V., c. 51, s. 5. 



52. Whenever the size of the meshes of nets or apparatus for the 

 capture of fish is fixed by this Act, or by any fishery regulation 

 under it, it shall be unlawful to so arrange or adapt the nets or fishing 

 apparatus as to practically diminish the size of such meshes. 61 V., 

 c. 39, s. 2. 



INJURIES TO FISHING GROUNDS AND POLLUTION OF RIVERS. 



53. No one shall throw overboard ballast, coal ashes, stones, or 

 other prejudicial or deleterious substances in any river, harbour or 

 roadstead or any water where fishing is carried on, or throw over- 

 board or let fall upon any fishing bank or ground, or leave or deposit 

 or cause to be thrown, left or deposited, upon the shore, beach or 

 bank of any water, or upon the beach between high and low water 

 mark, inside of any tidal estuary, or within two hundred yards of the 

 mouth of any salmon river, remains or offal of fish, or of marine 

 animals, or leave decayed or decaying fish in any net or other fishing 

 apparatus: Provided that such remains or offal may be buried 

 ashore, beyond high water mark, and that at establishments situated 

 inside of the mouths of rivers for carrying on deep-sea fisheries, the 

 same may be dropped into perforated boxes or inclosures built upon 

 the beach, or under stage-heads, in such manner as to prevent the 

 same from being floated or drifted into the streams, or may be 

 disposed of in such other manner as any fishery officer prescribes. 



2. No person shall cause or knowingly permit to pass into, or put 

 or knowingly permit to be put, lime, chemical substances or drugs, 



