﻿406 
  REPORT 
  OF 
  COMMISSIONER 
  OF 
  FISH 
  AND 
  FISHERIES. 
  [26] 
  

  

  south, 
  almost 
  to 
  Norfolk, 
  Va. 
  There 
  are 
  localities 
  in 
  which 
  it 
  is 
  doubt- 
  

   ful 
  if 
  the 
  tides 
  rise 
  high 
  enough, 
  but 
  wherever 
  a 
  tidal 
  rise 
  and 
  fall 
  of 
  

   12 
  inches 
  exists, 
  it 
  would 
  seem 
  that 
  the 
  method 
  could 
  be 
  rendered 
  avail- 
  

   able. 
  Tides 
  of 
  at 
  least 
  10 
  to 
  12 
  inches 
  are 
  necessary 
  in 
  order 
  to 
  waft 
  

   the 
  fry 
  back 
  and 
  forth 
  in 
  the 
  canals, 
  and 
  to 
  render 
  the 
  operation 
  of 
  the 
  

   jetties 
  in 
  the 
  canals 
  effective. 
  

  

  VIII. 
  — 
  Modifications 
  of 
  the 
  new 
  system 
  where 
  natural 
  coves 
  

  

  OR 
  PONDS 
  EXIST. 
  

  

  The 
  plan 
  of 
  the 
  small 
  establishment 
  given 
  in 
  the 
  preceding 
  pages 
  is 
  

   to 
  be 
  regarded 
  as 
  typical. 
  In 
  the 
  use 
  of 
  the 
  system 
  witli 
  crowded 
  or 
  

   condensed 
  cultch 
  in 
  different 
  localities, 
  modifications 
  of 
  the 
  typical 
  plan 
  

   may 
  often 
  be 
  ad 
  vautageously 
  employed. 
  For 
  example, 
  an 
  oyster 
  planter 
  

   may 
  have 
  a 
  large 
  pond 
  of 
  two 
  or 
  three 
  acres 
  thickly 
  planted 
  with 
  spawn- 
  

   ing 
  oysters 
  and 
  connected 
  with 
  the 
  open 
  water 
  by 
  way 
  of 
  a 
  narrow 
  

   canal. 
  The 
  pond, 
  if 
  it 
  has 
  a 
  firm 
  bottom 
  over 
  its 
  whole 
  extent, 
  may, 
  

   if 
  not 
  already 
  used 
  for 
  the 
  purpose, 
  be 
  planted 
  throughout 
  with 
  good 
  

   seed 
  or 
  " 
  plants," 
  which, 
  iu 
  the 
  course 
  of 
  two 
  years, 
  will 
  be 
  mostly 
  

   well 
  grown, 
  marketable 
  oysters. 
  In 
  such 
  a 
  case 
  several 
  systems 
  of 
  

   canals 
  could 
  be 
  fed 
  from 
  the 
  single 
  large 
  inclosure, 
  that 
  is 
  to 
  say, 
  in- 
  

   stead 
  of 
  having 
  only 
  a 
  single 
  canal, 
  several 
  zigzag 
  canal 
  systems, 
  each 
  

   3 
  feet 
  in 
  width, 
  might 
  be 
  made 
  to 
  cany 
  the 
  water 
  flowing 
  in 
  and 
  out 
  of 
  

   the 
  large 
  inclosure 
  instead 
  of 
  the 
  original 
  channel, 
  which 
  might 
  then 
  

   be 
  filled 
  up 
  and 
  closed. 
  Or, 
  if 
  it 
  were 
  practicable, 
  the 
  channel 
  connect- 
  

   ing 
  the 
  natural 
  pond 
  with 
  the 
  open 
  water 
  might 
  be 
  utilized 
  for 
  the 
  same 
  

   purpose 
  as 
  artificially 
  constructed 
  canals, 
  provided 
  the 
  cost 
  of 
  modify- 
  

   ing 
  it 
  for 
  the 
  purpose 
  were 
  not 
  too 
  great. 
  In 
  some 
  cases, 
  by 
  digging, 
  

   filling, 
  and 
  dredging, 
  as 
  might 
  be 
  indicated 
  in 
  the 
  course 
  of 
  such 
  a 
  

   natural 
  chan 
  nel, 
  it 
  could 
  be 
  prepared 
  for 
  the 
  reception 
  of 
  cultch. 
  Where 
  

   such 
  a 
  channel 
  were 
  wide 
  enough 
  a 
  system 
  of 
  parallel 
  rows 
  of 
  light 
  

   piles, 
  the 
  rows 
  being 
  3 
  feet 
  3 
  inches 
  apart, 
  and 
  running 
  lengthwise 
  

   throughout 
  the 
  course 
  of 
  the 
  channel, 
  might 
  be 
  used 
  to 
  support 
  the 
  re- 
  

   ceptacles 
  for 
  the 
  cultch, 
  the 
  latter 
  being 
  of 
  the 
  form 
  used 
  in 
  the 
  design 
  

   of 
  the 
  typical 
  system, 
  and 
  supported 
  as 
  in 
  the 
  latter, 
  upon 
  ledges 
  or 
  

   scantling 
  spiked 
  horizontally 
  to 
  the 
  rows 
  of 
  piles 
  just 
  below 
  the 
  level 
  of 
  

   low 
  tide. 
  

  

  In 
  other 
  cases 
  where 
  there 
  existed 
  narrow 
  points 
  in 
  the 
  course 
  of 
  such 
  

   a 
  canal 
  these 
  might 
  be 
  used 
  as 
  jetties, 
  still 
  further 
  narrowed 
  in 
  some 
  

   cases, 
  perhaps 
  by 
  filling 
  in 
  the 
  sides, 
  after 
  which 
  a 
  system 
  of 
  parallel 
  

   rows 
  of 
  piles 
  with 
  their 
  horizontal 
  supports 
  of 
  scantling 
  might 
  be 
  con 
  

   structed 
  between 
  the 
  jetties, 
  and 
  upon 
  which 
  the 
  receptacles 
  filled 
  with 
  

   cultch 
  could 
  be 
  supported. 
  In 
  this 
  way 
  the 
  fry 
  now 
  discharged 
  by 
  

   spawning 
  oysters 
  frorn 
  coves 
  through 
  their 
  outlets, 
  sometimes 
  by 
  the 
  

   thousands 
  of 
  billions 
  annually, 
  can 
  be 
  caught 
  upon 
  cultch 
  and 
  permit 
  ted 
  

   to 
  develop 
  into 
  available 
  spat. 
  

  

  