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Application of Random Sample Survey Designs to Estimate the Commercial Blue Crab Harvest in Maryland
Author(s) -
Summers J. Kevin,
Richkus William A.,
Hoffman Howard W.,
Bonzek Christopher,
King Howard H.,
Burch Michael
Publication year - 1983
Publication title -
north american journal of fisheries management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.587
H-Index - 72
eISSN - 1548-8675
pISSN - 0275-5947
DOI - 10.1577/1548-8659(1983)3<21:aorssd>2.0.co;2
Subject(s) - callinectes , stratified sampling , sampling (signal processing) , environmental science , sample (material) , fishery , simple random sample , confidence interval , geography , sampling interval , statistics , mathematics , biology , demography , engineering , population , telecommunications , physics , crustacean , detector , sociology , thermodynamics
Simple and stratified random sample surveys were conducted in Maryland to ascertain the magnitude of the blue crab (Callinectes sapidns) harvest in 1981. The total harvest was approximately 65 × 10 6 lbs with a 95% confidence interval of 58,519,617‐70,646,509 lbs. Commercial crab potters and commercial trotliners accounted for 51 and 36% of the annual harvest, respectively. Sport crabbers landed the rest of the estimated catch with trotlines or collapsible traps. The results of the 1981 survey were used to evaluate sampling needs for 1982 and led to reductions in sample sizes.