Factors Affecting Bottom Trawl Behavior: Results of Experiments with 83/112 Eastern Trawls Towed from the NOAA Ship MILLER FREEMAN

摘要

Catch results from bottom trawl surveys are used to estimate the abundance of demersal fishery resources in the northeast Pacific Ocean and the Bering Sea. The magnitude and composition of bottom trawl catches is influenced among other factors by the physical performance of the trawl. This paper describes the results of these observations and identifies some of the physical factors of the towing situation that were found to affect trawl performance.