﻿OYSTER 
  INDUSTRY 
  OF 
  NORTH 
  CAROLINA. 
  

  

  271 
  

  

  infested 
  03'sters 
  are 
  much 
  more 
  numerous 
  on 
  certain 
  l)ecls 
  than 
  on 
  

   others. 
  

  

  The 
  parasite 
  may 
  not 
  be 
  the 
  direct 
  cause 
  of 
  the 
  death 
  of 
  oj^sters 
  

   it 
  infests, 
  but 
  they 
  are 
  necessarily 
  much 
  less 
  vigorous 
  and 
  less 
  able 
  to 
  

   withstand 
  unfavorable 
  conditions. 
  The 
  fact 
  that 
  the 
  death 
  rate 
  on 
  

   planted 
  beds 
  is 
  much 
  higher 
  than 
  on 
  the 
  natural 
  beds 
  may 
  be 
  due 
  to 
  

   the 
  combined 
  effect 
  of 
  the 
  parasite 
  and 
  the 
  less 
  favorable 
  physical 
  

   conditions. 
  

  

  As 
  uniform 
  conditions 
  exist 
  throughout 
  the 
  region 
  in 
  each 
  river 
  

   that 
  includes 
  the 
  greater 
  number 
  of 
  planted 
  beds, 
  and 
  as 
  similar 
  

   methods 
  have 
  been 
  used 
  by 
  all 
  the 
  planters, 
  for 
  convenience 
  in 
  descrip- 
  

   tion, 
  one 
  bed 
  in 
  each 
  river 
  ma.y 
  be 
  taken 
  as 
  a 
  type. 
  

  

  Mr. 
  E. 
  L. 
  Gandy 
  selected 
  ground 
  near 
  the 
  middle 
  of 
  Newport 
  

   River 
  between 
  the 
  mouths 
  of 
  Harlow 
  and 
  Oyster 
  creeks, 
  and 
  planted 
  

   about 
  800 
  bushels 
  per 
  acre 
  of 
  unculled 
  stock, 
  tonged 
  mostlj' 
  from 
  the 
  

   beds 
  in 
  Harlow 
  and 
  Core 
  creeks. 
  The 
  bottom 
  at 
  the 
  place 
  selected, 
  

   composed 
  partly 
  of 
  cla}', 
  partly 
  of 
  sand, 
  is 
  covered 
  with 
  a 
  laj'^er 
  of 
  soft, 
  

   organic 
  mud 
  of 
  varying 
  thickness; 
  a 
  ix)Ie 
  can 
  be 
  thrust 
  into 
  it 
  to 
  a 
  

   depth 
  of 
  6 
  to 
  15 
  inches. 
  The 
  water 
  varies 
  in 
  depth 
  from 
  3 
  to 
  9 
  feet 
  

   at 
  low 
  tide, 
  being 
  deepest 
  in 
  the 
  main 
  river 
  channel, 
  which 
  runs 
  

   through 
  one 
  part 
  of 
  the 
  bed. 
  A 
  velocity 
  of 
  0.8 
  mile 
  per 
  hour 
  was 
  

   noted 
  over 
  the 
  bed 
  in 
  the 
  main 
  channel 
  at 
  certain 
  stages 
  of 
  the 
  tide, 
  

   and 
  velocities 
  of 
  0.5 
  and 
  0.6 
  mile 
  per 
  hour 
  are 
  common 
  over 
  the 
  shal- 
  

   lower 
  parts 
  of 
  the 
  ground. 
  The 
  density 
  of 
  the 
  water 
  varies 
  greatly, 
  

   being 
  much 
  lower 
  on 
  low 
  or 
  falling 
  tide 
  than 
  when 
  the 
  water 
  is 
  rising 
  

   or 
  high. 
  The 
  drainage 
  of 
  fresh 
  water 
  from 
  the 
  vast 
  area 
  of 
  low 
  

   marsh 
  lands 
  at 
  the 
  head 
  of 
  the 
  river 
  and 
  along 
  the 
  banks 
  of 
  Harlow 
  

   Creek 
  mixes 
  with 
  the 
  salt 
  water 
  of 
  the 
  river 
  and 
  is 
  carried 
  over 
  the 
  

   bed 
  as 
  the 
  tide 
  flows 
  out. 
  Four 
  density 
  stations 
  were 
  located 
  over 
  

   this 
  area. 
  The 
  first 
  (No. 
  1), 
  in 
  the 
  channel 
  between 
  Crab 
  Point 
  and 
  

   the 
  mouth 
  of 
  Core 
  Creek, 
  No. 
  2 
  near 
  the 
  north 
  bank 
  of 
  the 
  river 
  and 
  

   near 
  the 
  mouth 
  of 
  Oj'ster 
  Creek, 
  No. 
  3 
  opposite 
  the 
  mouth 
  of 
  Harlow 
  

   Creek, 
  and 
  No. 
  4 
  south 
  of 
  the 
  end 
  of 
  White 
  Rock. 
  The 
  following 
  

   tables 
  give 
  the 
  average 
  density 
  at 
  these 
  stations, 
  as 
  determined 
  by 
  

   observations 
  made 
  at 
  high 
  and 
  low 
  water, 
  from 
  October 
  6 
  to 
  Novem- 
  

   ber 
  23, 
  1899, 
  and 
  at 
  two 
  of 
  these 
  stations 
  from 
  May 
  1 
  to 
  August 
  31, 
  

   1900. 
  No 
  corrections 
  for 
  temperature 
  have 
  been 
  made: 
  

  

  Average 
  densities 
  over 
  oyster 
  bed 
  in 
  Newport 
  Rirer, 
  planted 
  In/ 
  E. 
  L. 
  (Uindy. 
  

   OCTOBER 
  6 
  TO 
  NOVEMBER 
  23, 
  1899. 
  

  

  