Lawrence W. McEachron

Assessment of Annual Relative Abundance and Mean Length of Six Marine Fishes in Texas Coastal Waters

Standardized fishery independent gill net and bag seine monitoring programs in 8 Texas bays from 1976 to 1982 demonstrated significant differences among annual indices of relative abundances of spotted seatrout (Cynoscion nebulosus), red drum (Sciaenops ocellatus), black drum (Pogonias cromis), sheepshead (Archosargus probatocephalus), southern flounder (Paralichthys lethostigma), and Atlantic croaker (Micropogonias undulatus) populations. These programs provide a more complete assessment of the fish populations than do commercial landings data because of the selective fishing inherent in...

Increasing Sampling Efficiency in Creel Surveys

Rising costs and increasing demands for limited marine resources dictate that managers monitor the status and utilization of these resources efficiently. Seventy-two percent to 100% of aU weekend sport boat anglers completing a trip from 0700-1800 hours could be interviewed from 1000-1800 hours in Texas bay systems. A comparison of mean daily trailer boat counts suggest that optimum estimates of fishing pressure within a year can be made by stratifying data into 2 periods (13 November to 8 April; 9 April to 12 November).