Table 2 Maximum likelihood estimates of logistic selectivity curve parameters for a 65mm diamond mesh codend,relative to a 50mm control codend,and SELECT model goodness of-fit measures for Loligopealeii,Peprilus triacanthus,Illex illecebrosus,andMerluccius bilinearis catches in a twin trawl.With the exception of butterfish,standard errors shown in parentheses were adjusted for between-haul variability (refer to Section 2).