CRD 06-22

Figure 5a. Comparisons of the standard error (SE) of total discards derived by the two bycatch ratios (discard to days absent [DDA] and discard to kept [DK]) and the three methods (separate ratio [D1], combined ratio [D2] and simple expansion [D3]) for New England longline; each dot represents a species group and mesh size.



Figure 5b.  Comparisons of the standard error (SE) of total discards derived by the two bycatch ratios (discard to days absent [DDA] and discard to kept [DK]) and the three methods (separate ratio [D1], combined ratio [D2] and simple expansion [D3]) for Mid-Atlantic otter trawl; each dot represents a species group and mesh size.


Figure5c. Comparisons of the standard error (SE) of total discards derived by the two bycatch ratios (discard to days absent [DDA] and discard to kept [DK]) and the three methods (separate ratio [D1], combined ratio [D2] and simple expansion [D3]) for New England otter trawl; each dot represents a species group and mesh size.


Figure 5d.  Comparisons of the standard error (SE) of total discards derived by the two bycatch ratios (discard to days absent [DDA] and discard to kept [DK]) and the three methods (separate ratio [D1], combined ratio [D2] and simple expansion [D3]) for Mid-Atlantic scallop dredge; each dot represents a species group and mesh size.


Figure 5e. Comparisons of the standard error (SE) of total discards derived by the two bycatch ratios (discard to days absent [DDA] and discard to kept [DK]) and the three methods (separate ratio [D1], combined ratio [D2] and simple expansion [D3]) for New England scallop dredge; each dot represents a species group and mesh size


Figure 5f.  Comparisons of the standard error (SE) of total discards derived by the two bycatch ratios (discard to days absent [DDA] and discard to kept [DK]) and the three methods (separate ratio [D1], combined ratio [D2] and simple expansion [D3]) for Mid-Atlantic gillnet; each dot represents a species group and mesh size.


Figure 5g.  Comparisons of the standard error (SE) of total discards derived by the two bycatch ratios (discard to days absent [DDA] and discard to kept [DK]) and the three methods (separate ratio [D1], combined ratio [D2] and simple expansion [D3]) for New England gillnet; each dot represents a species group and mesh size.


Figure 5h.  Comparisons of the coefficient of variation (CV) of total discards derived by the two bycatch ratios (discard to days absent [DDA] and discard to kept [DK]) and the three methods (separate ratio [D1], combined ratio [D2] and simple expansion [D3]) for New England longline; each dot represents a species group and mesh size.


Figure 5i.  Comparisons of the coefficient of variation (CV) of total discards derived by the two bycatch ratios (discard to days absent [DDA] and discard to kept [DK]) and the three methods (separate ratio [D1], combined ratio [D2] and simple expansion [D3]) for Mid-Atlantic otter trawl; each dot represents a species group and mesh size.


Figure 5j.  Comparisons of the coefficient of variation (CV) of total discards derived by the two bycatch ratios (discard to days absent [DDA] and discard to kept [DK]) and the three methods (separate ratio [D1], combined ratio [D2] and simple expansion [D3]) for New England otter trawl; each dot represents a species group and mesh size.


Figure 5k.  Comparisons of the coefficient of variation (CV) of total discards derived by the two bycatch ratios (discard to days absent [DDA] and discard to kept [DK]) and the three methods (separate ratio [D1], combined ratio [D2] and simple expansion [D3]) for Mid-Atlantic scallop dredge; each dot represents a species group and mesh size


Figure 5l.  Comparisons of the coefficient of variation (CV) of total discards derived by the two bycatch ratios (discard to days absent [DDA] and discard to kept [DK]) and the three methods (separate ratio [D1], combined ratio [D2] and simple expansion [D3]) for New England scallop dredge; each dot represents a species group and mesh size.


Figure 5m.  Comparisons of the coefficient of variation (CV) of total discards derived by the two bycatch ratios (discard to days absent [DDA] and discard to kept [DK]) and the three methods (separate ratio [D1], combined ratio [D2] and simple expansion [D3]) for Mid-Atlantic gillnet; each dot represents a species group and mesh size.


Figure 5n.  Comparisons of the coefficient of variation (CV) of total discards derived by the two bycatch ratios (discard to days absent [DDA] and discard to kept [DK]) and the three methods (separate ratio [D1], combined ratio [D2] and simple expansion [D3]) for New England gillnet; each dot represents a species group and mesh size.

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(Modified Jun. 13 2008)