﻿REPORT 
  OF 
  COMMISSIONER 
  OF 
  FISH 
  AND 
  FISHERIES. 
  LXIII 
  

  

  Leadville 
  Station, 
  Colorado 
  (E. 
  A. 
  Tulian, 
  Superintendent), 
  

  

  At 
  tbe 
  beginuiu^ 
  of 
  the 
  fiscal 
  year 
  tlie 
  stock 
  of 
  fish 
  on 
  hand 
  was 
  as 
  

   follows 
  : 
  

  

  Species. 
  

  

  Calendar 
  year 
  in 
  

  

  wliicli 
  nsh 
  

  

  were 
  hatched. 
  

  

  1896. 
  

  

  Brook 
  trout 
  137, 
  000 
  

  

  Loch 
  Leven 
  trout 
  11, 
  780 
  

  

  Kainbow 
  trout 
  i 
  24, 
  500 
  

  

  BhK-k-s])ott(d 
  trout 
  j 
  29, 
  000 
  

  

  Yellow-tiuned 
  trout 
  ' 
  

  

  1892. 
  

  

  Eggs. 
  

  

  566 
  

   118 
  

  

  44, 
  900 
  

   57, 
  900 
  

   15, 
  100 
  

  

  The 
  fish 
  were 
  held 
  in 
  the 
  troughs 
  and 
  rearing-ponds 
  until 
  fall, 
  when 
  

   tlie 
  following 
  distribution 
  was 
  made: 
  Brook 
  trout, 
  94,000; 
  Loch 
  Leven 
  

   trout, 
  500; 
  black-spotted 
  trout, 
  42,200; 
  native 
  or 
  yellow- 
  finned 
  trout, 
  

   7,931 
  ; 
  rainbow 
  trout, 
  25,500. 
  

  

  Besides 
  caring 
  tbr 
  the 
  fish 
  on 
  hand, 
  the 
  employees 
  of 
  the 
  station 
  

   were 
  engaged 
  during 
  the 
  summer 
  in 
  making 
  a 
  number 
  of 
  improve- 
  

   ments, 
  embracing 
  the 
  construction 
  of 
  a 
  flume 
  between 
  the 
  middle 
  and 
  

   lower 
  lakes, 
  installing 
  troughs 
  in 
  the 
  northern 
  half 
  of 
  the 
  hatchery, 
  

   which 
  had 
  not 
  previously 
  been 
  in 
  use, 
  and 
  making 
  a 
  number 
  of 
  minor 
  

   repairs 
  to 
  the 
  various 
  cabins 
  and 
  log 
  buiklings. 
  

  

  BrooJc 
  trout, 
  — 
  Prior 
  to 
  the 
  opening 
  of 
  the 
  spawning 
  season 
  arrange- 
  

   ments 
  were 
  made 
  as 
  usual 
  with 
  the 
  owners 
  of 
  Uneva, 
  Wellington, 
  

   Young, 
  and 
  Decker 
  lakes, 
  Gale 
  and 
  Smith 
  ponds, 
  for 
  the 
  collection 
  of 
  

   eggs 
  on 
  shares. 
  Lower 
  and 
  Middle 
  Evergreen 
  lakes 
  were 
  also 
  drained 
  

   and 
  the 
  fish 
  belonging 
  to 
  the 
  Commission 
  removed 
  and 
  placed 
  in 
  ponds 
  

   near 
  the 
  hatchery. 
  The 
  first 
  eggs 
  were 
  obtained 
  from 
  them 
  on 
  October 
  

   7 
  and 
  the 
  last 
  on 
  December 
  24, 
  the 
  total 
  take 
  aggregating 
  418,000. 
  The 
  

   large 
  loss 
  on 
  these 
  during 
  incubation, 
  amounting 
  to 
  174,000, 
  or 
  nearly 
  

   42 
  per 
  cent, 
  was 
  attributed 
  to 
  the 
  removal 
  of 
  the 
  fish 
  from 
  the 
  lakes 
  to 
  

   the 
  ponds 
  too 
  early 
  in 
  the 
  season. 
  The 
  eye-spots 
  appeared 
  within 
  50 
  

   days 
  and 
  the 
  first 
  fry 
  hatched 
  at 
  the 
  end 
  of 
  93 
  days. 
  The 
  season 
  at 
  

   Uneva 
  Lake 
  extended 
  from 
  October 
  21 
  to 
  December, 
  and 
  resulted 
  in 
  a 
  

   collection 
  of 
  186,000, 
  6 
  per 
  cent 
  of 
  which 
  were 
  lost 
  in 
  hatching. 
  The 
  

   spawning 
  season 
  at 
  Gales 
  Pond 
  covered 
  the 
  same 
  period, 
  and 
  281,900 
  

   eggs 
  were 
  secured. 
  The 
  loss 
  during 
  incubation 
  was 
  34 
  per 
  cent, 
  which, 
  

   though 
  large, 
  was 
  smaller 
  than 
  that 
  of 
  the 
  previous 
  year, 
  when 
  the 
  fish 
  

   were 
  overfed. 
  In 
  addition 
  to 
  this, 
  a 
  spawning-house 
  had 
  been 
  provided, 
  

   so 
  that 
  the 
  eggs 
  were 
  not 
  subjected 
  to 
  intense 
  cold, 
  as 
  heretofore. 
  

  

  At 
  Smith 
  Pond 
  the 
  collections 
  aggregated 
  109,700, 
  and 
  the 
  loss 
  in 
  

   hatching 
  was 
  11 
  per 
  cent. 
  At 
  Eidgeway 
  the 
  fish 
  had 
  to 
  be 
  stripped 
  

   out 
  of 
  doors 
  during 
  very 
  cold 
  weather, 
  and 
  as 
  a 
  result 
  only 
  74,000 
  eggs, 
  

   of 
  very 
  poor 
  (juality, 
  were 
  obtained. 
  

  

  The 
  season 
  at 
  Wellington 
  Lake 
  opened 
  November 
  5 
  and 
  continued 
  to 
  

   the 
  middle 
  of 
  December. 
  The 
  difticulties 
  previously 
  encountered 
  at 
  that 
  

   point 
  were 
  largely 
  overcome 
  by 
  the 
  erection 
  of 
  suitable 
  shelter 
  and 
  the 
  

  

  