MAY + — JUN h— JUL — H AUG- 



2 



o 



o 



c 



cr 



u. 



O 



CE 

 111 



lD 



S 



D 

 Z 



50 







50 







>- 

 u 



| 50 

 o 



UJ 



E 



y so 



cc 



Ld 

 Q. 







50 

 



50 

 



- 



173 









STA. 2 



1835 HRS 















DC 











22 

 i I 







- 



62 



STA. 3 1910 HRS 





IK 











16 



























- 



12 





11 



STA.4 1945 HRS 







































STA.4 



30 



2040 HRS 













l£ 







3 















STA. 3 



11 



14 



2115 HRS 

























o 









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6 





6 



I 



STA. 2 



5 



2150 HRS 



























i n m 



STAGE 



Figure 4. — Percent frequency distributions of lobster larval stages caught during 

 si\ da>-night neuslon tows in Buzzards Ba\, 9 June 1976. (The times given are 

 EST at the tow midpoints; numbers above each graph are actual numbers of 

 larvae caught: the top three graphs are for the daylight lows, the lower three for 

 those after dark.) 



ovigerous lobsters in Buzzards Bay than in surrounding 

 waters, possibly increasing the larval production. 



In Long Island Sound, where physical condiiions are similar 

 in many respects to Buzzards Bay, Lund et al., 6 Smith, 7 and 

 Briggs and Mushacke (1979) found that a high proportion of 

 sublegal female lobsters were sexually mature, while in waters 

 south of Long Island (Briggs and Mushacke 1980) this propor- 

 tion was low. As Lund and Stewart (1970) reported, large 

 numbers of larval lobsters are found in the sound and low 

 numbers, south of Long Island. 



All of the above suggests that conditions are more favorable 

 in Buzzards Bay for the production of larvae than in adja- 

 cent waters. This bay, which is shallower than adjacent areas 

 and has a slower Hushing rate, is warmer from spring to fall 



-MAY J JUN— 1 - JUL — ■>- — AUG- 



MONTH 



•Lund, W. A., Jr., L. L. Stewart, and C. J. Rathbun. 1973. Investigation on 

 the lobster. Completion Rept. for Connecticut Project 3-130-R Comm. Fish. 

 Res. Devel. Act, 105 p. Univ. Conn., Noank, CT 06340. 



Smith, E. M. 1977. Long Island Sound lobster management. Completion 

 Rept. lor Connecticut Project 3-253-R-l Comm. Fish. Res. Devel. Act, 97 p. 

 Conn. Dept. Emiron. Protect.. Stale Office Bldg.. Hartford, CT06I 15. 



Figure 3.— Numbers, bv development stage, of lobster larvae caught per 1.000 m' 

 of water filiered for each sampling date in each >ear, 1975-79. 



32 





