Composite Station 3 (See Figure 6 and 

 Appendix Table 3) 



Nine recaptures have been reported from a single point 

 release of 146 lobsters on the east side of Hudson Canyon 

 on 26 April 1968. First capture depth was 160 fathoms (293 

 m); release depth was 85 fathoms (155 m). Seven of the 

 nine recaptures were reported by location and one other 

 from the vicinity of Hudson Canyon. Sex ratio of the nine 

 recaptures was seven females to two males. Mean time at 

 large was 252 days (0.7 yr). Two of the recaptures (3F, 

 29F) from this release, both mature females, are 

 classified as migrants and were captured 29 and 118 days 

 later in coastal trap fisheries off Long Island, N.Y., after 

 having migrated 102 miles (189 km) and 77 miles (143 

 km), respectively. The longest outstanding recapture 

 (660 F), an immature female at release, was at large 

 1,024 days (2.8 yr) during which time it increased 32% in 

 carapace length, which is indicative of at least two moult 

 increments (Cooper and Uzmann 1971). 



Three of the recoveries (3F, 29F, 4F) were migrants 

 within the terms prescribed in the preceding section. 

 Return 3F was recaptured 29 days after release following 

 a 102-mile (189-km) migration to shoal water, at 3.5 

 miles (6.5 km) per day. Return 29F, on the other hand, 

 showed a net displacement of 77 miles (143 km) over the 

 much longer period of 118 days; the calculated speed of 

 0.6 miles (1.1 km) per day is well below the mean speed 

 of the collective 117 defined migrants and inconsistent 

 with an idealized ongoing shoalward track. In the 

 absence of any contradictory evidence, it seems logical to 

 conclude that this individual and others, as will be seen, 

 probably arrived in the vicinity of their recapture at con- 

 siderably earlier dates. Return 11F was recaptured 13 

 miles (24.1 km) northwesterly in slightly deeper water 

 than at release. 



Composite Station 4 (See Figure 7 and 

 Appendix Table 4) 



Seven recaptures have been reported from a single 

 point release of 52 lobsters several miles east of Block Can- 

 yon on 28 April 1968. First capture depth was 190 

 fathoms (347 m); release depth was 100 fathoms (183 m). 

 Four of the seven recaptures were reported by location. 

 Sex ratio of the seven recaptures was three females to 

 four males. Mean time at large was 425 days (1.2 yr). One 

 of the four located recaptures, a mature male, moved 71 

 miles (132 km) easterly over a period of 405 days at large. 

 The longest outstanding recapture (location unreported) 

 in this subgroup was at large 1,326 days (3.6 yr). 



Composite Station 5 (See Figure 8 and 

 Appendix Table 5) 



Twenty-nine recaptures have been reported from a 

 composite total of 264 releases west of Atlantis Canyon 

 on 29 March 1968 (142) and 30 March 1968 (122). Mean 

 depth at first capture was 190 fathoms (347 m); mean 

 depth at release was 99 fathoms (181 m). Twenty of the 



recaptures were reported by specific location and one by 

 approximate location. 



Sex ratio of the returns was 22 females to 7 males, not 

 significantly different from the ratio at release (212 fe- 

 males to 52 males). 



Mean time at large for all recoveries was 284 days (0.8 

 yr); greatest time at large for a located individual was 

 774 days (2.1 yr) during which time apparent dispersion 

 was only 10 miles (18.5 km). 



Mean distance traveled by those lobsters with specific 

 recapture locations (20) was 25.1 miles. Three in- 

 dividuals, all sexually mature females, made migrations 

 in excess of 50 miles (92.7 km), the range being 56-76 

 miles (104-141 km). 



Four of the recoveries (28F, 26F, 27F, 4F), all mature 

 females, are classified migrants; all were recaptured in 

 June within 36-50 days after tagging. Return 28F, an egg- 

 bearing female at release and recapture, was taken 56 

 miles (104 km) northeasterly in significantly shoaler 

 water (22 fathoms = 40.2 m) after 50 days at large; ap- 

 parent speed (1.1 miles/day = 2.0 km/day) and direction 

 are highly consistent with the vernal shoaling hypothesis. 



Returns 26F and 27F (egg-bearing at release and 

 recapture) were taken 38 miles (70.4 km) easterly near 

 the head of Veatch Canyon at 80 fathoms (148 m) after 

 being at large 36 and 37 days, respectively; apparent 

 speed in each case was 1.1 miles/day (2.0 km/day). It is 

 obvious that these tracks are not consistent with a 

 theoretical goal of shoaler location; we will reserve com- 

 ment on these and others of similar nature for later dis- 

 cussion. Return 4F was taken 11 miles northeasterly in 

 significantly shoaler (64 fathoms = 117 m) water; this 

 recovery illustrates quite well that lobsters occupying the 

 shelf edge or slope can achieve much shoaler (or deeper) 

 locations with relatively small excursions. 



Composite Station 6 (See Figure 9 and 

 Appendix Table 6) 



Twenty-two recaptures have been reported from a 

 composite total of 149 releases midway between Atlantis 

 and Veatch canyons on 1 May 1968 (78) and 2 May 1968 

 (71). Mean depth at first capture was 190 fathoms (347 

 m); mean depth at release was 99 fathoms (181 m). Nine- 

 teen of the recoveries were reported by specific location 

 and one by approximate location. Sex ratio at release was 

 103 females (69%) to 46 males; the ratio at recapture was 

 12 females (55%) to 10 males. 



Mean time at large for all recoveries was 312 days (0.9 

 yr); greatest time at large for a located individual, an im- 

 mature male at release, was 896 days (2.4 yr) during 

 which time apparent dispersion was only 18 miles (33.4 

 km). 



Mean distance traveled by those lobsters with specific 

 capture locations (19) was 33.5 miles (62.1 km). Five in- 

 dividuals made migrations in excess of 50 miles (92.7 

 km), the range being 57-71 miles (106-132 km). Three of 

 these long distance migrants were mature females, one of 

 which (91F) was berried at recapture; the remaining two 

 were mature males. 



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