﻿MANUAL 
  OF 
  FISH-CULTURE. 
  

  

  141 
  

  

  lu 
  March, 
  1892, 
  the 
  station 
  was 
  removed 
  2 
  miles 
  lower 
  down 
  the 
  

   river 
  to 
  Bryan 
  Point, 
  on 
  the 
  Maryland 
  side, 
  opposite 
  Monnt 
  Yernoii. 
  

   As 
  the 
  eggs 
  can 
  be 
  more 
  safely 
  and 
  economically 
  transported 
  than 
  the 
  

   fry, 
  they 
  are 
  promptly 
  transferred 
  to 
  Central 
  Station 
  at 
  Washington, 
  

   where 
  the 
  hatching 
  is 
  done, 
  and 
  the 
  fry 
  are 
  sent 
  out 
  to 
  the 
  various 
  

   rivers 
  on 
  the 
  cars 
  of 
  the 
  Commission, 
  a 
  side-track 
  at 
  Central 
  Station 
  

   permitting 
  them 
  to 
  be 
  brought 
  close 
  up 
  to 
  the 
  building. 
  

  

  The 
  following 
  table, 
  taken 
  from 
  the 
  records 
  of 
  the 
  station, 
  shows 
  the 
  

   value 
  of 
  the 
  spawning-grounds: 
  

  

  Tears. 
  

  

  Number 
  of 
  

   eggs 
  taken. 
  

  

  880 
  

   881 
  

   882 
  

   883 
  

   884 
  

   885 
  

   886 
  

  

  20, 
  749, 
  000 
  

   43, 
  200, 
  000 
  

   21, 
  800, 
  000 
  

   24, 
  274, 
  000 
  

   19, 
  000, 
  000 
  

   22, 
  576, 
  000 
  

   36, 
  362, 
  000 
  

   59, 
  435, 
  000 
  

   81,177,000 
  

  

  Tears. 
  

  

  1889 
  

   1890 
  

   1891 
  

   1892 
  

   1893 
  

   1894 
  

   1895 
  

   1896 
  

   1897 
  

  

  Number 
  of 
  

   eggs 
  taken. 
  

  

  58, 
  233, 
  000 
  

   35, 
  202, 
  000 
  

   32, 
  980, 
  000 
  

   13, 
  446, 
  000 
  

   9, 
  423, 
  000 
  

   32, 
  393, 
  000 
  

   66, 
  065, 
  000 
  

   64, 
  788, 
  000 
  

   39, 
  707, 
  000 
  

  

  In 
  1889 
  immense 
  collections 
  of 
  eggs 
  were 
  made 
  on 
  certain 
  days 
  — 
  

   8,368,000 
  on 
  May 
  6 
  and 
  6,311,000 
  on 
  May 
  7, 
  and 
  during 
  seven 
  days 
  there 
  

   was 
  an 
  average 
  of 
  over 
  5,000,000 
  per 
  day. 
  This 
  was 
  before 
  and 
  just 
  

   after 
  a 
  freshet. 
  

  

  To 
  increase 
  the 
  supply 
  of 
  eggs, 
  seine 
  fishing 
  has 
  been 
  attempted 
  by 
  

   the 
  United 
  States 
  Fish 
  Commission 
  on 
  both 
  the 
  Susquehanna 
  and 
  the 
  

   Potomac, 
  but 
  the 
  eflbrts 
  were 
  only 
  partially 
  successful 
  and 
  were 
  finally 
  

   abandoned. 
  The 
  extension 
  of 
  egg-taking 
  by 
  seines 
  can 
  not 
  be 
  relied 
  

   upon, 
  especially 
  as 
  this 
  method 
  of 
  fishing 
  has 
  been 
  declining 
  for 
  many 
  

   years, 
  owing 
  to 
  its 
  greater 
  exi^ense, 
  and 
  a 
  corresponding 
  growth 
  has 
  

   taken 
  place 
  in 
  the 
  gill-net 
  fishery. 
  It 
  is 
  often 
  difficult 
  to 
  obtain 
  the 
  

   ripe 
  eggs 
  from 
  a 
  seine 
  on 
  account 
  of 
  the 
  great 
  numbers 
  of 
  alewives 
  

   taken 
  at 
  tlie 
  same 
  time. 
  

  

  Tlie 
  following 
  comparative 
  table 
  shows 
  the 
  shad-egg 
  production 
  from 
  

   a 
  Potomac 
  Eiver 
  seine, 
  together 
  with 
  the 
  i)roportion 
  of 
  males, 
  females, 
  

   and 
  spawning 
  fish, 
  and 
  the 
  number 
  of 
  eggs 
  per 
  fish 
  : 
  

  

  