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  STATISTICAL 
  SURVEY 
  PROCEDURE 
  

  

  operated 
  in 
  more 
  than 
  one 
  district 
  has 
  been 
  eliminated 
  in 
  regional 
  and 
  national 
  totals. 
  The 
  catch 
  

   by 
  the 
  halibut 
  fleet 
  is 
  credited 
  to 
  the 
  port 
  of 
  landing 
  except 
  that 
  fish 
  landed 
  by 
  U.S. 
  halibut 
  craft 
  

   in 
  British 
  Columbia, 
  is 
  credited 
  to 
  Southeastern 
  Alaska. 
  Halibut 
  statistics 
  are 
  also 
  included 
  in 
  

   the 
  monthly 
  and 
  annual 
  summaries 
  published 
  by 
  the 
  Seattle 
  Fishery 
  Market 
  News 
  Office. 
  Statis- 
  

   tics 
  on 
  the 
  landings 
  of 
  halibut 
  at 
  Pacific 
  Coast 
  ports 
  have 
  been 
  collected 
  since 
  1925. 
  

  

  South 
  Atlantic 
  and 
  Gulf 
  of 
  Mexico 
  Shrimp 
  F 
  i 
  s 
  he 
  ry 
  - 
  -Detailed 
  statistics 
  on 
  

   quantity 
  and 
  value 
  of 
  shrimp, 
  by 
  variety 
  and 
  size, 
  landed 
  at 
  South 
  Atlantic 
  and 
  Gulf 
  ports, 
  have 
  

   been 
  collected 
  for 
  the 
  Gulf 
  area 
  since 
  1955 
  and 
  the 
  South 
  Atlantic 
  since 
  1957. 
  Since 
  1956, 
  NMFS 
  

   personnel 
  have 
  also 
  obtained 
  daily 
  information 
  on 
  the 
  number 
  of 
  fishing 
  trips, 
  area 
  and 
  depth 
  

   fished, 
  and 
  time 
  spent 
  fishing 
  for 
  craft 
  landing 
  at 
  U 
  .S 
  . 
  ports 
  in 
  the 
  Gulf 
  of 
  Mexico 
  . 
  Various 
  

   fishery 
  agencies 
  of 
  the 
  southern 
  States 
  cooperate 
  in 
  the 
  collection 
  of 
  these 
  data. 
  

  

  Detailed 
  monthly 
  and 
  annual 
  summaries 
  of 
  the 
  statistics 
  on 
  shrimp 
  catch 
  and 
  landings 
  are 
  

   published 
  in 
  bulletin 
  form 
  and 
  are 
  summarized 
  in 
  the 
  Statistical 
  Digests. 
  

  

  Historical 
  Fishery 
  Statistics 
  — 
  NMFS 
  has 
  in 
  its 
  files 
  and 
  in 
  various 
  reports 
  or 
  pub- 
  

   lications, 
  a 
  large 
  volume 
  of 
  historical 
  data 
  on 
  fisheries. 
  Beginning 
  with 
  the 
  1951 
  Digest, 
  a 
  sec- 
  

   tion 
  entitled 
  ^'Historical 
  Fishery 
  Statistics," 
  which 
  includes 
  complete 
  historical 
  information 
  on 
  

   selected 
  species, 
  has 
  been 
  carried. 
  There 
  is 
  published 
  each 
  year 
  a 
  listing 
  of 
  the 
  titles 
  of 
  the 
  

   series 
  of 
  data 
  appearing 
  in 
  earlier 
  editions. 
  

  

  Review 
  of 
  Certain 
  Major 
  Fisheries 
  — 
  For 
  the 
  years 
  1942-66, 
  tabulations 
  contain- 
  

   ing 
  complete 
  data 
  on 
  the 
  catch 
  of 
  certain 
  major 
  species, 
  have 
  been 
  included 
  in 
  a 
  section 
  of 
  the 
  

   Digest 
  entitled 
  "Review 
  of 
  Certain 
  Major 
  Fisheries." 
  Although 
  the 
  data 
  are 
  included 
  in 
  the 
  de- 
  

   tailed 
  catch 
  tables 
  of 
  the 
  various 
  States, 
  they 
  are 
  consolidated 
  in 
  this 
  section 
  to 
  provide 
  a 
  sin- 
  

   gle 
  source 
  of 
  data 
  for 
  cod, 
  haddock, 
  halibut, 
  menhaden, 
  Atlantic 
  ocean 
  perch, 
  salmon, 
  tuna, 
  oy- 
  

   sters, 
  clams, 
  crabs, 
  and 
  shrimp. 
  Data 
  on 
  operating 
  units 
  in 
  the 
  following 
  fisheries 
  have 
  like- 
  

   wise 
  been 
  consolidated 
  in 
  this 
  section: 
  halibut, 
  salmon 
  purse 
  seine 
  and 
  troll 
  line, 
  Atlantic 
  and 
  

   Pacific 
  Coast 
  tuna, 
  menhaden 
  purse 
  seine, 
  fish 
  and 
  shrimp 
  otter 
  trawls. 
  

  

  Canned 
  Fishery 
  Products 
  and 
  Industrial 
  Products 
  — 
  Since 
  1921, 
  NMFS 
  has 
  

   made 
  annual 
  sectional 
  surveys 
  for 
  statistics 
  on 
  canned 
  and 
  industrial 
  fishery 
  products 
  . 
  These 
  

   surveys 
  are 
  started 
  the 
  first 
  week 
  in 
  January 
  of 
  each 
  year 
  for 
  statistics 
  on 
  the 
  production 
  in 
  the 
  

   preceding 
  year. 
  So 
  far 
  as 
  possible, 
  the 
  Service 
  obtains 
  by 
  mail, 
  statistics 
  on 
  the 
  annual 
  produc- 
  

   tion 
  of 
  each 
  domestic 
  canned 
  and 
  industrial 
  fishery 
  products 
  plant. 
  If 
  it 
  is 
  impossible 
  to 
  obtain 
  

   the 
  information 
  by 
  mail, 
  the 
  report 
  is 
  secured 
  by 
  a 
  NMFS 
  representative. 
  Included 
  in 
  the 
  data 
  

   obtained 
  are 
  statistics 
  on 
  the 
  yield 
  and 
  value 
  of 
  the 
  canned 
  products 
  by 
  type 
  of 
  commodity, 
  can 
  

   size, 
  and 
  area 
  of 
  production. 
  Data 
  on 
  industrial 
  products 
  are 
  obtained 
  by 
  commodity 
  and 
  area 
  of 
  

   production. 
  The 
  value 
  shown 
  for 
  canned 
  and 
  industrial 
  products 
  is 
  the 
  gross 
  amount 
  received 
  by 
  

   the 
  packer 
  at 
  the 
  production 
  point. 
  No 
  deductions 
  are 
  made 
  for 
  commissions 
  or 
  expenses. 
  

  

  Annual 
  statistical 
  bulletins 
  are 
  issued 
  on 
  this 
  trade, 
  and 
  detailed 
  data 
  are 
  published 
  in 
  the 
  

   Statistical 
  Digest. 
  Prior 
  to 
  1921, 
  canned 
  and 
  industrial 
  products 
  data 
  were 
  not 
  collected 
  for 
  the 
  

   entire 
  country. 
  However, 
  data 
  on 
  the 
  production 
  of 
  these 
  products 
  were 
  usually 
  obtained 
  for 
  the 
  

   areas 
  in 
  which 
  general 
  canvass 
  surveys 
  were 
  conducted. 
  

  

  Fish 
  Meal 
  and 
  Oil 
  — 
  Data 
  are 
  collected 
  monthly 
  on 
  the 
  domestic 
  production 
  of 
  fish 
  meal, 
  

   body 
  oil 
  and 
  fish 
  solubles. 
  This 
  information 
  is 
  released 
  monthly 
  and 
  annually 
  in 
  the 
  Service's 
  

   Current 
  Fishery 
  Statistics 
  series 
  of 
  bulletins. 
  

  

  Fish 
  Fillets 
  and 
  Steaks 
  — 
  Statistics 
  on 
  the 
  annual 
  production 
  and 
  value 
  of 
  fish 
  fillets 
  

   and 
  steaks 
  in 
  the 
  United 
  States 
  are 
  obtained 
  in 
  conjunction 
  with 
  the 
  canned 
  and 
  industrial 
  fishery 
  

   products 
  survey. 
  These 
  data 
  are 
  released 
  annually 
  in 
  bulletin 
  form 
  and 
  in 
  the 
  annual 
  Statistical 
  

   Digest. 
  Statistics 
  on 
  the 
  production 
  of 
  fillets 
  and 
  steaks 
  are 
  available 
  for 
  1925 
  and 
  annually 
  

   since 
  1928, 
  except 
  that 
  no 
  data 
  were 
  collected 
  in 
  California 
  for 
  the 
  years 
  1941 
  to 
  1946, 
  inclusive. 
  

  

  