| CRD 02-01 Table 2. Estimated area in federal
waters towed by hydraulic clam dredges in
2000 (Source: Dave Wallace). |
|
Quahogs |
Surfclams |
| Hours at sea per year |
28,440a |
19,907a |
| Setting & hauling gear (25%) |
7,110 |
4,977 |
| Hours fished per year |
21,330 |
14,930 |
| Average speed/tow (nmi/hr) |
2 |
2 |
| Total distance towed (nmi) |
42,660 |
29,860 |
| Ft per nmi |
6076 |
6076 |
| Total distance towed (ft) |
2.385 x 109 |
1.814 x 109 |
| Average dredge width (ft) |
9.2 |
9.2 |
| Area towed per year (ft2) |
2.385 x 1010 |
1.669 x 1010 |
| Square ft per n mile |
3.69 x 107 |
3.69 x 107 |
| Area towed per year (nmi2) |
64.6 |
45.2 |
| a = From clam vessel logbook data, excludes
Maine quahog fishery |
|