﻿24 
  REPORT 
  OF 
  COMMISSIONER 
  OF 
  FISH 
  AND 
  FISHERIES. 
  

  

  also 
  for 
  the 
  construction 
  of 
  a 
  large 
  settling 
  reservoir 
  and 
  filter 
  to 
  be 
  

   used 
  in 
  connection 
  with 
  the 
  Avater 
  taken 
  from 
  Sleepers 
  Eiver. 
  During 
  

   June 
  plans 
  were 
  prepared 
  with 
  the 
  view 
  to 
  carrying 
  out 
  this 
  work. 
  

  

  The 
  following 
  table 
  shows 
  the 
  stock 
  of 
  fish 
  on 
  hand 
  at 
  the 
  close 
  of 
  

   the 
  year 
  : 
  

  

  Species. 
  

  

  Fry. 
  Yearlings. 
  

  

  Brook 
  trout 
  

  

  Kainbow 
  trout. 
  . 
  

   Atlantic 
  salruon. 
  

   Steelliead 
  trout 
  . 
  

   Lalii! 
  trout 
  

  

  8,748 
  

  

  70U 
  

  

  1,753 
  

  

  Gloucester 
  Station, 
  Massachusetts 
  (E. 
  F. 
  Locke 
  in 
  chauge). 
  

  

  Upon 
  the 
  resignation 
  of 
  Capt. 
  A. 
  C. 
  Adams, 
  E. 
  F. 
  Locke 
  was 
  appointed 
  

   fish-culturist 
  of 
  the 
  station 
  and 
  took 
  charge 
  on 
  July 
  1. 
  During 
  the 
  

   summer 
  necessary 
  rei)airs 
  were 
  made 
  to 
  the 
  wharf 
  and 
  the 
  steam 
  and 
  

   water 
  i^lant, 
  and 
  the 
  hatchery 
  was 
  improved 
  by 
  the 
  addition 
  of 
  four 
  

   new 
  windows. 
  In 
  July 
  the 
  assistant 
  in 
  charge 
  and 
  I. 
  S. 
  K. 
  Eeeves, 
  

   consulting 
  engineer, 
  visited 
  the 
  station 
  with 
  the 
  view 
  to 
  determining 
  

   what 
  improvements 
  could 
  be 
  made 
  in 
  the 
  method 
  of 
  hatching 
  cod 
  

   eggs. 
  

  

  The 
  small 
  output 
  of 
  the 
  previous 
  year, 
  which 
  was 
  less 
  than 
  13,000,000 
  

   fry, 
  or 
  about 
  10 
  per 
  cent 
  of 
  the 
  number 
  of 
  eggs 
  collected, 
  was 
  attributed 
  

   by 
  Captain 
  Adams 
  chiefly 
  to 
  the 
  condition 
  of 
  the 
  water 
  in 
  Gloucester 
  

   Harbor, 
  which 
  is 
  highly 
  charged 
  with 
  sediment. 
  This 
  attaches 
  itself 
  

   to 
  the 
  eggs, 
  increasing 
  their 
  specific 
  gravity 
  and 
  causing 
  them 
  to 
  sink 
  

   to 
  the 
  bottom 
  of 
  the 
  box, 
  where 
  they 
  die. 
  The 
  presence 
  of 
  crusta- 
  

   ceans, 
  jelly-fishes, 
  and 
  other 
  animals 
  in 
  the 
  water 
  seriously 
  interferes 
  

   also 
  with 
  the 
  working 
  of 
  the 
  hatcliing 
  apparatus. 
  An 
  examination 
  of 
  

   the 
  harbor 
  failed 
  to 
  show 
  that 
  these 
  conditions 
  could 
  be 
  bettered, 
  and 
  

   after 
  careful 
  consideration 
  it 
  was 
  decided 
  to 
  continue 
  the 
  work 
  on 
  the 
  

   same 
  lines 
  as 
  heretofore, 
  and 
  to 
  attempt, 
  in 
  addition, 
  the 
  hatching 
  of 
  

   cod 
  eggs 
  by 
  means 
  of 
  air 
  circulation, 
  as 
  tried 
  at 
  Central 
  Station 
  during 
  

   the 
  winter 
  of 
  1893, 
  and 
  also 
  with 
  closed 
  circulation 
  of 
  water. 
  It 
  had 
  

   been 
  demonstrated 
  at 
  Chicago 
  that 
  sea 
  water 
  could 
  be 
  kept 
  indefinitely 
  

   in 
  a 
  practically 
  pure 
  state 
  with 
  large 
  numbers 
  of 
  fish 
  or 
  other 
  animals 
  

   living 
  in 
  it 
  by 
  means 
  of 
  aeration 
  and 
  circulation, 
  and 
  there 
  appeared 
  

   to 
  be 
  no 
  reason 
  why 
  cod 
  eggs 
  could 
  not 
  be 
  hatched 
  under 
  similar 
  

   conditions. 
  

  

  The 
  collection 
  of 
  eggs 
  was 
  directed 
  by 
  Capt. 
  E. 
  E. 
  Hahn, 
  who 
  was 
  

   stationed 
  at 
  Kittery 
  Point, 
  Maine, 
  with 
  a 
  portion 
  of 
  the 
  crew 
  of 
  the 
  

   Grampus. 
  The 
  season 
  lasted 
  from 
  N"ovember 
  29 
  to 
  March 
  23, 
  during 
  

   which 
  time 
  70,901,000 
  eggs 
  were 
  delivered 
  at 
  the 
  station. 
  From 
  these, 
  

   21,859,000 
  fry 
  were 
  produced 
  and 
  liberated 
  in 
  waters 
  in 
  the 
  immediate 
  

   vicinity. 
  All 
  of 
  the 
  eggs, 
  except 
  those 
  retained 
  for 
  hatching 
  by 
  

   means 
  of 
  aeration 
  and 
  closed 
  circulation 
  of 
  water, 
  were 
  placed 
  in 
  the 
  

  

  