﻿REPORT 
  OF 
  COMMISSIONER 
  OF 
  FISH 
  AND 
  FISHERIES. 
  \\v 
  

  

  of 
  the 
  ponds 
  throughout 
  the 
  summer, 
  which 
  proved 
  successful. 
  Mr. 
  

   Rudolph 
  Hessel 
  is 
  in 
  charge. 
  

  

  (18) 
  Arsenal 
  Grounds, 
  Washington, 
  D. 
  (7.— 
  This 
  station 
  is 
  supplement- 
  

   ary 
  to 
  the 
  Monument 
  Eeservation 
  Station, 
  and 
  has 
  been 
  used 
  since 
  1878 
  

   for 
  the 
  cultivation 
  of 
  scale 
  carp. 
  It 
  is 
  in 
  charge 
  of 
  Mr. 
  Richard 
  Lynch. 
  

  

  For 
  information 
  with 
  reference 
  to 
  the 
  actual 
  work 
  accomplished 
  with 
  

   different 
  species 
  of 
  fish 
  and 
  eggs 
  at 
  these 
  various 
  stations, 
  the 
  reader 
  is 
  

   referred 
  to 
  a 
  later 
  portion 
  of 
  this 
  report, 
  where 
  there 
  will 
  be 
  found 
  a 
  

   full 
  list 
  of 
  species 
  cultivated 
  by 
  the 
  Commission 
  and 
  a 
  statement 
  of 
  the 
  

   success 
  attained 
  with 
  each 
  variety. 
  

  

  3.— 
  NEW 
  HATCHING 
  STATION 
  PROPOSED. 
  

  

  In 
  Colorado 
  and 
  elsewhere 
  in 
  the 
  Rocky 
  Mountain 
  region 
  there 
  oc- 
  

   curs 
  in 
  considerable 
  numbers 
  the 
  Rocky 
  Mountain 
  trout* 
  (Salmo 
  purpu- 
  

   ratus), 
  which 
  is 
  deemed 
  by 
  ichthyologists 
  much 
  more 
  worthy 
  of 
  propa- 
  

   gation 
  in 
  Eastern 
  lakes 
  and 
  streams 
  than 
  Salmo 
  irideus, 
  as 
  attaining 
  a 
  

   larger 
  size, 
  being 
  more 
  active, 
  and 
  inhabiting 
  a 
  wider 
  variety 
  of 
  waters. 
  

   Mr. 
  Pierce, 
  the 
  Colorado 
  Fish 
  Commissioner, 
  describes 
  it 
  as 
  occurring 
  

   at 
  the 
  Twin 
  Lakes, 
  in 
  Lake 
  County 
  of 
  that 
  State, 
  of 
  good 
  size, 
  and 
  in 
  

   abundance 
  sufficient 
  to 
  warrant 
  artificial 
  propagation. 
  (The 
  Twin 
  Lakes 
  

   are 
  5 
  miles 
  from 
  Twin 
  Lake 
  Station, 
  on 
  the 
  Denver 
  and 
  Rio 
  Grande 
  

   Railroad, 
  and 
  18 
  miles 
  from 
  Leadville.) 
  He 
  says: 
  "It 
  is 
  rarely 
  caught 
  

   at 
  less 
  than 
  2 
  pounds 
  weight, 
  and 
  runs 
  from 
  that 
  to 
  10 
  pounds. 
  The 
  

   specimens 
  I 
  saw 
  were 
  4, 
  5, 
  7, 
  and 
  10 
  pounds, 
  respectively." 
  During 
  

   June 
  of 
  the 
  present 
  year 
  he 
  sent 
  an 
  agent 
  to 
  Twin 
  Lakes, 
  who 
  put 
  up 
  a 
  

   hatchery 
  at 
  the 
  foot 
  of 
  the 
  lower 
  lake 
  with 
  a 
  capacity 
  of 
  1,000,000 
  eggs. 
  

   He 
  had 
  no 
  difficulty 
  in 
  procuring 
  plenty 
  of 
  fish 
  with 
  a 
  seine 
  or 
  in 
  trap- 
  

   ping 
  them 
  between 
  the 
  lakes 
  in 
  large 
  quantities. 
  Only 
  a 
  few 
  eggs 
  were 
  

   secured 
  during 
  June, 
  which 
  led 
  to 
  the 
  conclusion 
  that 
  the 
  work 
  should 
  

   have 
  commenced 
  earlier, 
  rjerhaps 
  in 
  April. 
  What 
  eggs 
  were 
  obtained 
  

   were 
  hatched, 
  and 
  about 
  1,000 
  of 
  fry 
  were 
  removed 
  to 
  a 
  pond 
  at 
  

   the 
  State 
  hatchery 
  at 
  Denver. 
  At 
  the 
  upper 
  end 
  of 
  the 
  smaller 
  of 
  

  

  * 
  Prof. 
  D. 
  S. 
  Jordan 
  says 
  : 
  I 
  feci 
  very 
  sure 
  that 
  this 
  trout 
  is 
  tho 
  most 
  valuable 
  one 
  

   we 
  have, 
  and 
  I 
  would 
  like 
  to 
  see 
  it 
  have 
  a 
  chance. 
  

  

  My 
  preference 
  for 
  Salmo 
  purpuratus 
  over 
  Salmo 
  irideus 
  lies 
  in 
  this: 
  It 
  reaches 
  a 
  

   larger 
  size, 
  and 
  from 
  the 
  extent 
  of 
  its 
  distribution 
  (every 
  river 
  and 
  lake 
  from 
  South- 
  

   east 
  New 
  Mexico, 
  Colorado, 
  Dakota 
  to 
  Oregon 
  and 
  Kamchatka) 
  it 
  seems 
  more 
  

   adaptable 
  to 
  a 
  variety 
  of 
  circumstances 
  and 
  waters. 
  It 
  is 
  a 
  handsomer, 
  more 
  active 
  

   species. 
  It 
  is 
  unquestionably 
  different 
  from 
  S. 
  irideus, 
  having 
  a 
  larger 
  moutb, 
  teeth 
  

   on 
  the 
  hyoid 
  bone, 
  and 
  especially 
  much 
  smaller 
  scales. 
  

  

  From 
  two 
  red 
  blotches 
  under 
  the 
  chin, 
  always 
  present 
  in 
  life, 
  I 
  have 
  suggested 
  that 
  

   it 
  bo 
  called 
  tho 
  red-throated 
  trout. 
  It 
  thrives 
  in 
  lakes. 
  UtahLako 
  is 
  full 
  of 
  them, 
  

   and 
  they 
  run 
  up 
  the 
  Provo 
  River 
  in 
  such 
  numbers 
  that 
  tho 
  irrigating 
  ditches 
  scatter 
  

   them 
  all 
  over 
  the 
  meadows. 
  The 
  finest 
  specimens 
  I 
  have 
  seen 
  arc 
  those 
  from 
  Lake 
  

   Taboo, 
  whore 
  they 
  reach 
  2f5 
  pounds 
  weight. 
  There 
  is 
  a 
  lUtlo 
  hatchory 
  now 
  at 
  Tahoe 
  

   Citj 
  r 
  , 
  Nevada. 
  This 
  locality 
  is 
  tho 
  best 
  I 
  know. 
  Next 
  I 
  would 
  place 
  Provo, 
  Utah. 
  

  

  