﻿REPORT 
  OF 
  COMMISSIONER 
  OF 
  FISH 
  AND 
  FISHERIES. 
  63 
  

  

  1,500 
  per 
  minute 
  into 
  the 
  liatchery 
  reservoir. 
  Of 
  this 
  anioimt 
  500 
  

   gallons 
  are 
  required 
  for 
  the 
  hatchery, 
  and 
  the 
  balance 
  is 
  fed 
  into 
  the 
  

   ponds. 
  The 
  temperature 
  of 
  the 
  new 
  water 
  supply 
  is 
  10° 
  colder 
  in 
  mid- 
  

   summer 
  and 
  1° 
  warmer 
  in 
  winter 
  than 
  that 
  which 
  flows 
  through 
  the 
  

   lakes 
  to 
  the 
  hatchery. 
  

  

  Brook 
  trout. 
  — 
  At 
  the 
  beginning 
  of 
  the 
  year 
  112,000 
  were 
  reported 
  to 
  

   be 
  on 
  hand, 
  but 
  this 
  estimate 
  proved 
  erroneous, 
  as 
  the 
  total 
  output 
  iu 
  

   tlie 
  fall 
  numl)ered 
  '17,S0(), 
  and 
  the 
  losses 
  to 
  the 
  time 
  of 
  distril>ution 
  

   amounted 
  to 
  only 
  10,000. 
  Arrangements 
  were 
  made 
  to 
  collect 
  eggs 
  

   from 
  various 
  points 
  in 
  the 
  vicinity 
  of 
  Leadville, 
  and 
  at 
  the 
  close 
  of 
  the 
  

   season 
  300,000 
  had 
  been 
  secured 
  at 
  Wellington 
  Lake, 
  179,900 
  at 
  Uneva, 
  

   43,100 
  at 
  Gales, 
  05,200 
  at 
  Kasts, 
  47,000 
  at 
  Twin 
  Lakes, 
  and 
  404,800 
  

   from 
  brood 
  stock 
  at 
  the 
  station 
  and 
  in 
  Evergreen 
  Lakes, 
  making 
  a 
  total 
  

   of 
  1,100,900. 
  

  

  With 
  the 
  view 
  to 
  simiilifying 
  the 
  work 
  of 
  capturing 
  ripe 
  fish 
  in 
  

   Evergreen 
  Lakes, 
  a 
  spawning 
  race, 
  100 
  feet 
  long, 
  4 
  feet 
  wide, 
  and 
  3 
  

   feet 
  deep, 
  was 
  i^laced 
  at 
  the 
  head 
  of 
  the 
  lake 
  early 
  in 
  the 
  season, 
  and 
  

   a 
  flow 
  of 
  water 
  2 
  feet 
  deep 
  turned 
  through 
  it. 
  The 
  result 
  was 
  disaj)- 
  

   pointing, 
  as 
  very 
  few 
  fish 
  were 
  captured 
  by 
  means 
  of 
  it. 
  This 
  may 
  

   have 
  been 
  because 
  the 
  flume 
  was 
  new, 
  but 
  it 
  has 
  since 
  been 
  observed 
  

   that 
  very 
  few 
  brook 
  trout 
  enter 
  the 
  cold 
  mountain 
  streams 
  emptying 
  

   into 
  lakes 
  in 
  Colorado 
  for 
  the 
  purpose 
  of 
  spawning. 
  

  

  The 
  work 
  at 
  Wellington 
  Lake 
  extended 
  from 
  November 
  12 
  to 
  Decem- 
  

   ber 
  14, 
  being 
  conducted 
  under 
  very 
  unfavorable 
  circumstances, 
  owing 
  

   to 
  severe 
  weather 
  and 
  lack 
  of 
  suitable 
  facilities 
  for 
  capturing 
  fish 
  and 
  

   taking 
  spawn. 
  The 
  lake 
  was 
  frozen 
  over 
  solid, 
  and 
  as 
  the 
  fish 
  entered 
  

   the 
  inlets 
  in 
  very 
  small 
  numbers, 
  it 
  became 
  necessary 
  to 
  catch 
  them 
  by 
  

   seines 
  fished 
  through 
  holes 
  in 
  the 
  ice. 
  This 
  work, 
  ordinarily 
  tedious, 
  

   was 
  rendered 
  more 
  so 
  from 
  the 
  fact 
  that 
  the 
  thermometer 
  ranged 
  from 
  

   zero 
  to 
  IOC- 
  below 
  every 
  night, 
  making 
  it 
  necessary 
  to 
  cut 
  the 
  ice 
  out 
  

   each 
  day. 
  The 
  fish 
  had 
  to 
  be 
  stripped 
  in 
  the 
  open 
  air, 
  and 
  several 
  lots 
  

   of 
  eggs 
  were 
  taken 
  with 
  the 
  temperature 
  ranging 
  from 
  zero 
  to 
  16° 
  

   above. 
  As 
  a 
  result 
  of 
  the 
  severe 
  weather 
  160,000 
  of 
  the 
  300,900 
  died 
  

   in 
  incubation. 
  That 
  the 
  mortality 
  was 
  due 
  to 
  the 
  intense 
  cold 
  is 
  made 
  

   evident 
  by 
  the 
  fact 
  that 
  the 
  loss 
  on 
  eggs 
  taken 
  when 
  the 
  temperature 
  

   was 
  above 
  32° 
  ranged 
  from 
  9 
  per 
  cent 
  to 
  16 
  i)er 
  cent; 
  of 
  those 
  taken 
  

   in 
  a 
  temperature 
  of 
  15° 
  to 
  20° 
  below 
  freezing 
  point, 
  about 
  42 
  per 
  cent 
  

   succumbed, 
  and 
  on 
  two 
  lots 
  taken 
  at 
  a 
  temperature 
  of 
  zero 
  over 
  80 
  per 
  

   cent 
  died, 
  notwithstanding 
  the 
  fact 
  that 
  the 
  fish 
  from 
  which 
  thej' 
  were 
  

   taken 
  were 
  in 
  better 
  condition 
  than 
  those 
  on 
  which 
  the 
  smaller 
  losses 
  

   occurred. 
  Arrangements 
  have 
  been 
  made 
  to 
  erect 
  a 
  spawning-house 
  

   at 
  this 
  point 
  before 
  the 
  next 
  season 
  opens. 
  

  

  The 
  Uneva 
  Lake 
  collections 
  were 
  not 
  as 
  large 
  as 
  anticipated, 
  and 
  

   owing 
  to 
  scarcity 
  of 
  male 
  fish 
  the 
  loss 
  of 
  eggs 
  from 
  imperfect 
  fertiliza- 
  

   tion 
  was 
  considerable. 
  The 
  season 
  lasted 
  from 
  October 
  29 
  to 
  December 
  

   2, 
  and 
  on 
  May 
  1 
  there 
  were 
  143,740 
  fry 
  on 
  hand 
  as 
  a 
  result 
  of 
  the 
  col- 
  

   lections 
  made 
  at 
  that 
  point. 
  The 
  collections 
  at 
  Gale's 
  Pond 
  were 
  also 
  

  

  