﻿RECORDS 
  OF 
  THE 
  DREDGING 
  AND 
  OTHER 
  COLLECTING 
  AND 
  

  

  HYDROGRAPHIC 
  STATIONS 
  OF 
  THE 
  FISHERIES 
  

  

  STEAMER 
  ALBATROSS 
  IN 
  1903. 
  

  

  Lieut. 
  Fkanklin 
  Swift, 
  U. 
  S. 
  N., 
  Cormnmiding. 
  

  

  Compiled 
  l>y 
  Harry 
  C. 
  Fassett. 
  

  

  The 
  dredging, 
  trawling, 
  and 
  other 
  collecting 
  operation's 
  of 
  the 
  AWa- 
  

   tross 
  in 
  1903 
  were 
  covered 
  by 
  a 
  cruise 
  in 
  connection 
  with 
  the 
  investiga- 
  

   tions 
  of 
  a 
  special 
  commission 
  appointed 
  at 
  the 
  request 
  of 
  the 
  President 
  

   to 
  study 
  the 
  condition 
  and 
  needs 
  of 
  the 
  Alaska 
  salmon 
  fisheries. 
  

  

  Previous 
  to 
  this 
  cruise 
  the 
  last 
  dredging 
  station 
  of 
  the 
  Albatross 
  was 
  

   No. 
  4190, 
  on 
  August 
  27, 
  1902, 
  the 
  last 
  of 
  the 
  series 
  in 
  connection 
  with 
  

   the 
  Hawaiian 
  Islands 
  investigations, 
  the 
  records 
  of 
  which 
  may 
  be 
  found 
  

   in 
  the 
  Report 
  of 
  the 
  U. 
  S. 
  Fish 
  Commission 
  for 
  1902, 
  pp. 
  397-432. 
  

  

  In 
  the 
  following 
  i-ecords 
  all 
  stations 
  where 
  apparatus 
  was 
  employed 
  

   for 
  the 
  purpose 
  of 
  collecting 
  natural-history 
  specimens 
  are 
  given 
  serial 
  

   dredging 
  numbers 
  in 
  chronological 
  order, 
  and 
  each 
  piece 
  of 
  apparatus 
  

   used 
  at 
  each 
  station 
  is 
  given 
  a 
  separate 
  line. 
  

  

  The 
  tables 
  include 
  all 
  hydrographic 
  as 
  well 
  as 
  dredging 
  stations; 
  

   with 
  two 
  exceptions 
  (Nos. 
  H. 
  4730 
  and 
  H. 
  4777), 
  all 
  the 
  hydrographic 
  

   stations 
  have 
  an 
  actual 
  relation 
  to 
  the 
  dredging 
  stations 
  in 
  that 
  they 
  

   show 
  the 
  depth 
  of 
  water 
  at 
  the 
  end 
  of 
  each 
  dredge-haul, 
  and 
  conse 
  

   quently 
  the 
  range 
  in 
  depth 
  within 
  the 
  limits 
  of 
  the 
  haul, 
  as 
  well 
  as 
  

   the 
  changes 
  in 
  temperature 
  and 
  character 
  of 
  bottom. 
  As 
  the}" 
  con- 
  

   stitute 
  a 
  logical 
  part 
  of 
  the 
  record, 
  they 
  are 
  embodied 
  in 
  the 
  tables 
  in 
  

   their 
  chronologic 
  order. 
  

  

  Of 
  the 
  112 
  dredging 
  stations 
  shown 
  in 
  the 
  following 
  tables, 
  111 
  were 
  

   actual 
  net 
  -dragging 
  stations. 
  At 
  95 
  the 
  8-foot 
  Tanner 
  beam 
  trawl 
  

   was 
  employed, 
  and 
  at 
  16 
  the 
  9-foot 
  Tanner 
  trawl 
  was 
  used. 
  The 
  

   average 
  maximum 
  depth 
  was 
  108 
  fathoms; 
  average 
  minimum 
  depth, 
  

   92 
  fathoms; 
  average 
  mean 
  depth, 
  100 
  fathoms. 
  

  

  Average 
  time 
  actually 
  dragging 
  on 
  bottom, 
  20 
  minutes; 
  average 
  

   distance 
  dragged 
  over 
  the 
  bottom, 
  .48 
  of 
  a 
  nautical 
  mile. 
  

  

  One 
  station 
  was 
  occupied 
  solely 
  for 
  hand-line 
  fishing; 
  at 
  other 
  

   dredging 
  stations 
  lines 
  were 
  emplo3^ed 
  incidentally. 
  

  

  At 
  7 
  stations 
  where 
  the 
  beam-trawl 
  was 
  used, 
  the 
  surface 
  tow-net 
  

   was 
  also 
  employed. 
  At 
  each 
  station 
  but 
  a 
  single 
  haul 
  was 
  made, 
  the 
  

   average 
  time 
  of 
  towing 
  being 
  26 
  minutes, 
  and 
  the 
  average 
  distance 
  

   towed 
  through 
  the 
  water 
  being 
  one-half 
  nautical 
  mile. 
  

  

  123 
  

  

  