Download FAR 2013/29 Port sampling of tuna longline catches for swordfish (Xiphias gladius) size composition in 2005–06

A shore-based catch sampling programme for swordfish was developed and implemented which was cost-effective, statistically sound and achieved high coverage of landings. Individual processed weights were collected electronically from licensed fish receivers, and a predictive relationship was used to convert these to catch-at-length. Length-specific sex ratios derived from scientific observer data was projected onto the estimates of catch-at-length to estimate sex-specific catch-at-length.